Diy Simplex Repeater


Repeaters are built using two different frequencies that seamlessly come together. 490- MHz, PL 107. I want to make my own 15-20m (~50-65ft) active USB repeater cable, because those cost about 60€ while shorter ones cost significantly less (about 10-15€). 46 simplex License Exams: Feb 1 ,2020 May 2, 2020 Aug 1, 2020 Nov 7, 2020 License exams begin at 12:00 Noon at the Bishop Salvation Army. Simplex Repeater A simplex repeater records incoming transmissions and retransmits them on the same frequency. It requires a little patience to use, but it's far simpler and much cheaper to build, to the point where you could almost consider it disposable. For detail please go to http://www. Default is: 1 # ModeHang=10 # Time to stay in mode after receiption. This has the effect of doubling the time required to transmit a message, but while a traditional repeater typically costs thousands of dollars and might be semi-portable at best, a simplex repeater can be set up with a single handheld. Comes with 2 Tone,5 Tone,DTMF functions. 100 - repeater, tone 100 hz Crescent View District: day and time TBA; 445. The MMDVM-Repeater board is a lot like a hotspot, except it doesn’t have a radio built onboard. Frequency PL Tone Callsign Location Description Status; 145. Portable Allstar means you use a WiFi Hotspot in your Car or RV that provides the WiFi connection for your Raspberry Pi 3 computer – that runs the (free) Allstar software. Each of the map pins contains information about repeater location, power, height, etc. Edgerouter X mDNS repeater stopped working across VLANs As the title says, the mDNS repeater on my router has stopped working and I'm not sure why. You only need the module, one radio and the battery and antenna. · Finding a Repeater: More and more D-STAR repeaters are coming online everyday, so the first thing to do is to check out www. 00 Sale — Sold Out 2pcs x Surecom DIY Repeater Controller Cable FOR Repeater SR-112,SR-628,SR-328,SR-629 (#124023). Condition is Used. Premium LC Simplex Fiber Optic. This has the effect of doubling the time required to transmit a message, but while a traditional repeater typically costs thousands of dollars and might be semi-portable at best, a simplex repeater can be set up with a single handheld. you don’t have to be an artist or a scientist. Portable to Portable or Mobile to Mobile. The only problem is the repeater itself, because apparently it's not sold without a cable. Imagine — do-it-yourself satellites! The first amateur satellite, OSCAR-1 (Orbiting Satellite Carrying Amateur Radio), was built by American hams and went into orbit in 1961, just a couple of years after the Soviet Union launched Sputnik and ignited the space race. A simplex repeater is also known as a store-and-forward voice repeater. VHF/UHF Yagis Without doubt, the Yagi is king of home-station antennas these days. - 80 channel UHF CB - Open scan / Group or Priority scan / Repeater scan - Optional ‘On Hook Scan’ Includes - Microphone & cable - Adjustable mount - Mic hanger (Earthing type) - Whip Antenna & mount to suit 2008 BT50 This radio is in great condition and it can be fully. I haven’t done any simplex on 2 meter for quite some time I’ve got a 2 meter rig in my pickup and it has plenty of power to hit the repeater. 8Hz Details can be found on the ETCC's ukrepeater website here. A repeater is not involved and it supports simplex transmissions. You can tell he’s a […]. 1 as the 440 band simplex frequency. “talkingbear” also suggested a Simplex Repeater – HERE. 450 simplex, pl 97. Repeaters by nearest city/town. Rig B is set to 147. More detailed information regarding the general Function and Use of Cross Band Repeaters can be found HERE. The Club’s mission is to: advance general interest and knowledge of amateur radio, promote cooperation and exchange of information between members, conduct club programs, and provide public service support for community activities. The J-Pole per-forms just as well as a Ringo Ranger, and significantly better than the 1/ 4-wave ground-plane vertical. Patriot Radio Channels are the VHF UHF frequencies for American Patriots. This project hereby presented is a complete HAM radio simplex 'smart' repeater, built around a Motorola GM-350/950, Arduino NANO board and a WINBOND audio recording integrated circuit. SimplexRadio. Add a Repeater to Extend Radio Range If changing or adjusting the antenna doesn’t do the trick, it’s probably time to install one or and receiving on two separate (but nearly identical) frequencies: one that receives a signal and the other that outputs the signal. 570 Mhz) out of Haslett is periodically enabled for local participation. 17 Repeater to a Repeater in OKC and see what kind of activity was going on in the OKC area. These repeaters extend the operating range on VHF and enable low power handheld transceivers to communicate over 100 miles. Low power one 5w. Diy Simplex Repeater. The Repeater Builders web site offers a lot of information of interest to any VHF operator. In addition to the above features, this radio also features weather alert capabilities. The radio repeaters in real world consist of several numbers of channels. As for simplex calls… the GA-5S had no problem hitting other HTs at a few miles, and was even able to reach a friend’s base station that is about nine miles away, and across a lot of city congestion - there were a couple of times that the GA-5S was talking to radios that I could. Don't do it! Don't be a kerchunker, even though it's often a quick and convenient way of verifying that you can hit a repeater. Most of these codes are readily available in books, Apps, websites, etc. Simplex Repeater Controller RT-SRC1 for UV-5R UV5R Extend your radio range much Find many great new & used options and get the best deals for Simplex Repeater Controller RT-SRC1 for UV-5R UV5R Extend your radio range much at the best online prices at eBay. Operators who would. I know some experienced guys (and gals) out there may be saying – “What an amatuer…. A simplex repeater is also known as a store-and-forward voice repeater. It is an easy of operation, cost effective and highly flexible platform for extending communication range by converting conventional two-way radio into a simplex repeater system. Repeats up to 32 second message. Can I just buy a short one, cut it off and use it. Low power one 5w. 750 Repeaters). 620 UARC UARC repeater 3 146. Allstar uses the Internet – to connect to a distant Allstar Node – that is connected to the Repeater System you’re trying to reach. Most important, it is a “transparent” entry point into the D-Star network. •NE8K-L (145. The antenna is just a piece of wire, barely visible. 450 MHz Driven Element. These repeater channels are especially useful in terrain where there may be obstructions between radios, dramatically reducing the radio’s broadcast range. I also do most of my VHF work using SSB and CW. In fact, I am hitting 2 meter repeaters at least 60 miles away with only 5 Watts of power, and 70 cm repeaters 30 miles or more away with the same amount of power. ” “If for some reason N4FSC is down go to WA4TXE 146. The extender system, can improve your communications greatly,even over very b. For the money, this is a winner! 73 Rod KB8DNS. Diy simplex repeater Diy simplex repeater. you should be able to package it up pretty small!. 5-----Health Park Hospital SW Fort Myers: FMARC Analog FM and Yaesu Fusion (Linked via Wires-X in Room 21805 to 444. Unlike a traditional duplex repeater that receives and transmits at the same time on two different frequencies, a simplex repeater first receives a voice message, stores it, and then retransmits it out. When a repeater is selected, frequency and mode is already in the radio, no programming! Simplex repeater mode. New England VoIP Simplex Node Database as of August 31, 2020 07:00Z. Find them on eBay seller ID: radioshop888 and their own website. You might be better served assisting/assuring your local club's repeater is on solar/wind. 25 meter band is used, 220(222) MHz is an extraordinarily popular and useful tool. Repeats up to 32 second message. SainSmart MMDVM kit enables the different mode of digital walkie talkie communication with each other, it supports DMR, D-STAD, P25 and works with UHF. Callsign Lookup. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne. A repeater is a device which allows amateur radio operators to talk beyond the range of their small hand held radios. 48 (no PL) SIMPLEX and be prepared to relay reports between each other. You can tell he’s a […]. The SR-629 has 2 audio ports input and out , they are used to connect with mobile and handheld radio. as provided by the WIA’s list. Harga: Simplex Repeater controller / repeater HT simplex HTRp200. The extender system, can improve your communications greatly,even over very b. That is, it can act as a repeater between the two independent channels. Low power one 5w. As for simplex calls… the GA-5S had no problem hitting other HTs at a few miles, and was even able to reach a friend’s base station that is about nine miles away, and across a lot of city congestion - there were a couple of times that the GA-5S was talking to radios that I could. I installed this in January with two feet of snow on the ground and temps were in the mid 20s! Great signal reports on two meter simplex and hitting far out repeaters up to 50 miles! 440 is very good with even better reports on simplex. 5 24/7 United States OK Guymom English ke5sua. Diy Simplex Repeater TacticalRepeater. Kenwood Nxr-810 Uhf Repeater, 40 Watts, Analog Digital, 400 - 470 Mhz New In Box. 500 MHz simplex Fourth Thursday at 9pm on 447. Icom IC-400PRO Excellent Condition, installed in BT50 about 2 years before being removed to sell ute, very little use. We just have two gm 300 vhf or uhf 16 channel we can make a repeater. In Simplex Mode, there is no “repeat” function as you would call it, other than as a parrot repeater, unless there is a dual band, or dual transceiver aspect, requiring an additional channel. Echolink connected Simplex Link •Simplex link, like a repeater, connects Echolink to a local transceiver but is tuned to a simplex frequency. Produces results similar to that of a conventional repeater. There is an excellent network of repeaters in the UK and many other countries, enabling a good variety of contacts to be made even when only hand-held or mobile equipment is available. The extender system, can improve your communications greatly,even over very b. 580 Repeater inputs. Full-duplex, half-duplex, or simplex transmission of RS-232, RS-422, RS-485 2/4-wire data, or TTL logic Tested and certified to meet or exceed the requirements of IEEE 1613 Class 2 for electrical utility substations. 700 (no PL). 000 DMR Simplex 1 – CC1 TG99 TS1 446. Played with it off and on and found out it could handle digital transmissions as well as voice. 030 (1200 Baud). In my case, I live west of the urban sprawl so I need help being heard on 2 meters. On certain radio towers there is a repeater link for the road channel of the line you are on. I've put together some code for a portable simplex repeater based on an arduino board. This repeater records and then plays back the receive transmission, like a parrot. If its legal its nice but i have no idea nor did i find any info on if its legal. LATNEX RC-S120 Simplex Repeater Controller - DMR Crossband Repeater and Radio Voice Recorder Connects to Virtually Any UHF, VHF Handheld, Base, Two Way, Amateur Ham or Mobile Radio $54. Diy Electronics Electronics Projects Ham Radio Repeaters Wireless Spy Camera Spy Gadgets Model Train Layouts Two Way Radio Gps Tracking Emergency Preparedness SR-629 Duplex Repeater Controller for Walkie Talkie Two Way Radio Mobile Radio. The LED countdown timer’s ability to function as an accurate synchronized clock and switch easily to the countdown or count up function makes it ideal for many different applications. Maritime Transceiver EN301-929. Easy-to-install DIY project, no soldering or glue required; Protects from scalding hot water; Internet # 203721329Model # 24409Store SKU # 398764Store SO SKU. New England VoIP Simplex Node Database as of August 31, 2020 07:00Z. I haven’t done any simplex on 2 meter for quite some time I’ve got a 2 meter rig in my pickup and it has plenty of power to hit the repeater. For detail please go to http://www. Simplex Repeater. Our ETL-listed central station monitors commercial building throughout North America and Canada. com Document Viewer. 0 # usikker på om dette faktiskt hjelper. REPEATERS Most radio systems today use repeaters located on top of buildings, towers or on hill tops. If you put your hotspot frequency in a repeater band your radio may automatically switch into repeater mode and transmit on the wrong frequency. org (pin 4 "PR9" is audio output before discriminator). For example you can use it as a D-Star repeater on 2m and simultaneously as a DMR repeater on 70cm while conducting FM QSO on 222 MHz (USA version only). It is particularly useful when traveling to a new area where you don’t know the repeater frequencies, offsets and access tones. Surecom Repeater SR-112,SR-628,SR-328,SR-629 46-C 40cm DIY Repeater Controller Cable Regular price $2 16 $2. The amateur radio repeater has a very sharp filter to detect whether the exact tone is present. For example you can use it as a D-Star repeater on 2m and simultaneously as a DMR repeater on 70cm while conducting FM QSO on 222 MHz (USA version only). Compared with CB (Citizens Band Radio) at 27 MHz: CB radios may transmit with more power than MURS units may, but communications range is highly dependent on channel congestion and atmospheric conditions. It is an easy of operation and cost effective and highly flexible platform for setting up bi-direction cross band duplex repeater with mobile radio and handheld radio. Repeater Operating Before you make your first FM repeater contact, you should learn some repeater operating. A simple way to build one is to take two portable radios a connect them as follows: Radio1<-->Radio2 COR----->PTT RxAudio-->MicAudio Gnd<---->Gnd This will make a good poor mans repeater system suitable for voice communications. Rig B is set to 147. it’s about creating instead of just consuming. In fact, I am hitting 2 meter repeaters at least 60 miles away with only 5 Watts of power, and 70 cm repeaters 30 miles or more away with the same amount of power. Hotspot is Simplex, Repeater is Duplex. In order to achieve maximum signal gain for an individual cell phone or cellular device, they are also commonly used with a direct-connect amplifier, appropriate coax cable, and phone specific external antenna adapter. Base to base should cover the range and then some. RTL SDR DIY KITs Installation Instructions. The parts are on a slow boat from China, but here's what I have so far (see design guide for example schematics. When they are logged in, trustees/owners will see the data we have for their coordinations. New York Repeater Directory (NYRD) was born in 2003 as an addition to the New England Repeater Directory. 000MHz, respectively, and should be included in your radio’s scanned channels. Non-aligned Survivalist Hams use 146. Mototrbo™ repeaters operating in dual-mode do not. Diy simplex repeater Ìîãó÷èå ðåéíäæåðû 2017 Ìîãó÷èå ðåéíäæåðû â êèíî! Íèíäçÿ ñòàëü 24 ñåçîí î ïðèêëþ÷åíèÿõ ðåéíäæåðîâ Çëîäåè Ïðîòèâíèêè ìîãó÷èõ ðåéíäæåðîâ. RT-AC68U AC1900 Dual-Band Gigabit Wi-Fi router: 3X faster than 802. Generally, in a communication system, information is transmitted from transmitter to receiver that are placed over […]. Simplex operation utilizes the same frequency for receive and transmit, like a CB radio. the maker/DIY trend isn’t about Arduinos or 3D printers. 92 simplex (the 2 meter receive frequency) and 445. Allstar uses the Internet – to connect to a distant Allstar Node – that is connected to the Repeater System you’re trying to reach. FM is also used on simplex to make contacts directly without repeaters. 3-2 INSTALLING THE BELT CLIP If desired, you can install the supplied belt clip to the transceiver. This has the effect of doubling the time required to transmit a message, but while a traditional repeater typically costs thousands of dollars and might be semi-portable at best, a simplex repeater can be set up with a single handheld radio and operated from batteries. A digi is crucial to APRS networks. 00 Sale — Sold Out 2pcs x Surecom DIY Repeater Controller Cable FOR Repeater SR-112,SR-628,SR-328,SR-629 (#124023). In most cases, a duplexer is used as part of the repeater station. Honestly if SHTF, your local repeater would be the best way to organize a net. GMRS simplex, no repeater with 50 watt radios and big base antennas might fill in the areas you need. It features exceptional voice recording quality and higher capacity than any other comparable device on the market. Real time duplex repeater with link radio Allows user to change the DTMF remote control password Operates on both build-in battery and external DC 12V power supply DTMF remote control repeater function ON and OFF with password protection Build-in rechargeable battery support 30 hours long life operation :. In this episode we are going to be talking about the repeater functionality of the Rigblaster. Ìîãó÷èå ðåéíäæåðû 2017 Ìîãó÷èå ðåéíäæåðû â êèíî! Íèíäçÿ ñòàëü 24 ñåçîí î ïðèêëþ÷åíèÿõ ðåéíäæåðîâ Çëîäåè Ïðîòèâíèêè ìîãó÷èõ ðåéíäæåðîâ. Welcome to the Barron County Amateur Radio Association located in northwestern Wisconsin. The P25 DVRS (Digital Vehicular Repeater System) is a small, rugged, self contained, 10W radio base station integrated with Motorola Solutions remote mount APX™ series mobile radios. Simplex operation is between 1294 and 1295 MHz. Repeaters recommended for use by nearby highway. Frequency PL Tone Callsign Location Description Status; 145. 275 MHz simplex (on repeater offset) 446. It is employed advanced digital voice recording and processing technology to record the received signal (up to 120 seconds), and retransmit it on a same frequency channel. The Simple Simplex Repeater is easy to interface to most transcei'!ers, and can be built using readily available parts. {VFO = variable Frequency operation mode, MR= Memory (channel) mode} and select the frequency mode. There is an excellent network of repeaters in the UK and many other countries, enabling a good variety of contacts to be made even when only hand-held or mobile equipment is available. For detail please go to http://www. 9 MHz are set aside for simplex operation. Mobile radio programming. 550 Simplex as the Bug Out Channel (BOC) and 3-3-3. 760 76ERS 76ers repeater 2 146. Some IGates are digipeaters. for Echolink, the switching would need to be modified. willjr75 said:. The only problem is the repeater itself, because apparently it's not sold without a cable. The repeater is one of the most relied upon tools in the tool box. Simplex repeater. For new hams who are likely to get started in local VHF/UHF operation, the national calling frequencies to be concerned with are 2m and 70cm FM simplex (non-repeater). A channel consists of one transmitting and one receiving frequency; here we have two such sets. When in use, the TM-281A pays attention to the next station’s signal. Transmissions can be done via two radios directly on the same frequency, called simplex, or they can use a transmitter in between, called a repeater. You can get a simplex repeater for those cheap blister-pack radios. Amateur operators to encrypt. ID is KC2QJA. This repeater is likely loaded into the memory bank of your radio if it was programmed by K5TRA. Very good condition work fine on simplex Never tried repeaters Will need repeaters programming in , if you want to use them , instructions are in handbook and, I only used it in the shack. 17 Repeater to a Repeater in OKC and see what kind of activity was going on in the OKC area. The advertised ranges of 25-38 miles are based on direct line of sight and two way radio communication is greatly diminished when obstructions are present. 200 MHz simplex…. Seemed like a neat thing to have. There are many different types of keys available, and choosing one can be kind of confusing. Other 118" dia material could be used. That is, it can act as a repeater between the two independent channels. Summary of Styles and Designs. 122476 SURECOM SR-112 simplex repeater Controller For TYT MOBILE TH-9000,repeater Controller For TYT MOBILE TH-9000 122476 SURECOM SR-112 simplex, -Provides audio Input level display ( for adj, best sound ),Simplex Repeater, TYT TH-9000, -User set the Repeater Operates On/Off by DTMF, It features exceptional voice recording quality and higher capacity than any other comparable device on the. Below the beat switch there is a fine-tuning knob and below it one for adjusting the BFO frequency for the frequency-correct SSB reception. 150 + None 88. The application has been approved by the ETCC and submitted to Ofcom for licencing. Tiny, pocket-size 2. Add a Repeater to Extend Radio Range If changing or adjusting the antenna doesn’t do the trick, it’s probably time to install one or and receiving on two separate (but nearly identical) frequencies: one that receives a signal and the other that outputs the signal. I also do most of my VHF work using SSB and CW. Large Channel Capacity With Priority Scan The 50 Watt VXR-9000 is designed for simplex mode with single-antenna Duplexer UHF 440 – 470 MHz* *50 Watt only VXR-9000 Series SPECIFICATION SHEET vertexstandard. REPEATERS Most radio systems today use repeaters located on top of buildings, towers or on hill tops. 16 Surecom System to Motorola GM-300 GM-3188 Mobile Radio 46-GM Repeater Cable. 5 24/7 United States OK Guymom English ke5sua. NOTE: If the primary repeater is down try other and if no repeater use simplex at 147. ARDUINO based simplex HAM repeater. So I can now use my low power handheld near the car and let this more powerful transmitter and better antenna reach a local repeater or simplex station. The DV4mobile can also be used as a dual band, dual mode simplex repeater. Our controllers range from the NHRC-2. This would easily house a repeater or mobiles, small battery and all your cables, radios, etc (to a point, lol!). 750 Repeaters). In ham radio, a Hotspot is a kind of repeater, made up of an Internet-connected computer, an interface board called a Node Adapter, and an FM transceiver and antenna. SURECOM SR-112 simplex repeater Controller (Please choose cable) On Sale from $71. Wilson Yagi Antenna for 700/800/900 MHz Band. This means that double the time would be taken for each comm message and at the same time greatly extending the range of the transmission. For example you can use it as a D-Star repeater on 2m and simultaneously as a DMR repeater on 70cm while conducting FM QSO on 222 MHz (USA version only). provide voice override control of the Repeater/Simplex System at the Command Post. The MMDVM-Repeater board is a lot like a hotspot, except it doesn't have a radio built onboard. Edgerouter X mDNS repeater stopped working across VLANs As the title says, the mDNS repeater on my router has stopped working and I'm not sure why. The 2m national simplex calling frequency is sort of a universal (within the USA) place to make contact when you are not sure where to start. Maritime Transceiver EN301-929. On repeater WA6HAM (Ch-22 on your radio): 145. Designed for rooftop mounting, high gain fixed mount cell phone antennas are frequently used in conjunction with a wireless cellular building repeater. Base to base should cover the range and then some. We've been thinking about building a portable GoKit for VHF/UHF EMCOMM and Field Day Applications for a while now. I've searched Google up and down, and I have not found a feasible option to make a cross-band repeater with an Arduino. He built his portable node in an ammo box available at Harbor Freight using a Baofeng 888. For example you can use it as a D-Star repeater on 2m and simultaneously as a DMR repeater on 70cm while conducting FM QSO on 222 MHz (USA version only). Communication is a vital part of a preparedness system and being able to reach family members and members of my group are high on my priority list. Yea, Yea, I understand, it's FM, but sometimes a newcomer needs a cheap antenna to get into a repeater or give you a simplex QSO during a contest. The two types of repeaters are passive and active. Web & Mobile Control. Non-aligned Survivalist Hams use 146. Amateur operators to encrypt. Diy Simplex Repeater TacticalRepeater. With the storms among us all be safe and keep an eye on the weather however if we loose the repeaters please use the following for simplex communications. SURECOM SR-112 simplex repeater Controller The SR-112 is a multi-function voice recorder device that connects to virtually any handheld, base, or mobile radio. SR-628 Duplex Repeater Controller The SR-628 is a multi-function and cheaper device that connects any handheld or mobile radio. The price range goes from sub-$100 to several hundred depending on whether it is a kit, prebuilt, built & configured…the list goes on. 680 Repeater outputs. The EAARS Repeater on Mt. Packet BBS (N1NW-7) Off The Air. The GM300 radios have been interfaced using a Mark Phillips, G7LTT GMSK node adapter clone. GMRS simplex, no repeater with 50 watt radios and big base antennas might fill in the areas you need. 520 S-ERC Sandy ERC simplex 8 147. The Repeater Builders web site offers a lot of information of interest to any VHF operator. I’ve received very favorable signal reports and I can hit repeaters 40 miles away and 15+ miles over simplex using my 50-watt Yaesu FTM-100D. It is an easy of operation and cost effective and highly flexible platform for setting up bi-direction cross band duplex repeater with mobile radio and handheld radio. 2) Takes a signal received on a gateway repeater and sends it via internet to the hotspot TX which transmits a simplex D-STAR signal Allows a local, limited range, inexpensive, DIY extension to a D-STAR gateway system by a simplex hot spot or a full non-Icom repeater. Diy Simplex Repeater TacticalRepeater. ARDUINO based simplex HAM repeater. Building a Repeater with two BF888's Here are two photos showing how Dave, KB4FXC built a $30 repeater using two BF888's. Each of the map pins contains information about repeater location, power, height, etc. GENERAL TRANSCEIVER SPECIFICATIONS Technology Solid State SDR-DSP Direct Conversion Frequencies / Bands 1. Make sure your radio is in simplex mode when using a hotspot. The practice of briefly keying a microphone (hitting the push-to-talk/PTT button) to see if a repeater responds with a courtesy tone is commonly known as kerchunking (or ker-chunking) in ham-speak. 520 S-ERC Sandy ERC simplex 8 147. It features exceptional voice recording quality and higher capacity than any other comparable device on the market. Here we need two FM transmitters and two receivers for 2 channel design. I also do most of my VHF work using SSB and CW. This is called duplexing. All I'd have to do next is add a walkie talkie which I have plenty of and a good antenna. from 1 meg to 30 meg) most long distance short wave ham radio takes. If you're into VHF operation, it is a great resource. Whether you go through repeaters or use communicate via simplex, 1. This term is normally used in the context of environments that frequently use repeaters. The repeater was built to work on the 4m band, in order to promote activity and provide testing facility (by providing on-air S-reports) Motivation :. SR-628 Duplex Repeater Controller The SR-628 is a multi-function and cheaper device that connects any handheld or mobile radio. The main disadvantage of FM is the poor performance when signals are weak, which is where SSB really comes into its own. 450: VHF: 1) 145. NOT REVERSE When using announce that you are "985 simplex" Hopefully the power will be restored soon. My mobile setup is a Yeasu 8900 quad band FM 10 meters to 70CM an Icom 706 MK IIG that I use on 10 to 80 meters so far I have confirmed contacts in 102 countries mobile. 6 METERS Novice Tech w/5wpm Tech No Code General Advanced Extra CW, RTTY, Data, MCW,. willjr75 said:. 2 may be any relay with a 12-V coil (a long-life-reed relay is best). IRLP operates a worldwide network of dedicated servers and nodes offering very stable worldwide voice communications between hundreds of towns and cities. Diy simplex repeater Diy simplex repeater. LED lights when recording. Passive repeaters have no amplifier and pass information from one antenna to another via cable. It also has a remote head control, a wider band as well as a cross-band receiver plus a simplex checker. Here are some photos of a design by Mani, KH2FI. We will use the RASON 146. com/itm/SainSonic-RPT-2D-Two-way-Radio-Repeater-Box-Two-Transceivers-Station-DIY-/400644950201?pt=2_Way_Radios_FRS&hash=item5d484cc8b9 This i. Only three ICs and a handful of other components are needed to build the project. So simplex method is one-way communication technique. How to manually program a repeater channel. from 1 meg to 30 meg) most long distance short wave ham radio takes. Please read the "Latest System News" for important news about SSL!(updated September 10, 2018) QSL. it’s not about laser cutters and hackerspaces. Band Plans, Repeaters and Simplex Frqs. net is dedicated to the sole purpose of furthering the abilities and interest of the Amateur Radio Community. The feed on all Elk Antennas is from the front of the antenna. They wanted their 1 watt walkie-talkies to work anywhere it seems within a 30-mile radius or so. About Open Repeater Project. 25 meter band is used, 220(222) MHz is an extraordinarily popular and useful tool. QYT KT-7900D KT-8900D KT-980 Plus Programming Software. Transmissions can be done via two radios directly on the same frequency, called simplex, or they can use a transmitter in between, called a repeater. Whether you go through repeaters or use communicate via simplex, 1. 92 simplex (the 2 meter receive frequency) and 445. 000 National Calling. 580 Repeater inputs. 1 simplex on 440 band. SR C 11246 SURECOM Plug Cable Simplex DIY with Controller Repeater D. Full Duplex. I haven’t done any simplex on 2 meter for quite some time I’ve got a 2 meter rig in my pickup and it has plenty of power to hit the repeater. The LED countdown timer’s ability to function as an accurate synchronized clock and switch easily to the countdown or count up function makes it ideal for many different applications. Advantages over a J or Slim Jim antenna are better SWR and from what I've seen in performance better (lower) radiation resistance also easier installation and de-installation. Rig B is set to 147. I know some experienced guys (and gals) out there may be saying – “What an amatuer…. After the online resources to mount its full duplex MMDVM digital repeater based on Arduino and Nucleo STM32F4, here is the time to explain how to set up a "homemade" access point (Hotspot) MMDVM ba. VU-Meter WPF control. 625 mhz TX 440. 2 meter will quickly become point to point (simplex) because the repeaters will run out of power when they kill the power grid to allow things to ‘cook’. the maker/DIY trend isn’t about Arduinos or 3D printers. Surecom SR-112 Simplex Repeater Controller with Radio Cable 3 out of 5 stars (1) 1 product ratings - Surecom SR-112 Simplex Repeater Controller with Radio Cable. REPEATERS Most radio systems today use repeaters located on top of buildings, towers or on hill tops. Simplex Repeaters - posted in General Discussion: About 3 years ago I purchased an Argent simplex repeater. For example you can use it as a D-Star repeater on 2m and simultaneously as a DMR repeater on 70cm while conducting FM QSO on 222 MHz (USA version only). 12-Apr-2020 - ECP Machine,EECP Machine,External Counter Pulsation. 700 (no PL). it’s not about laser cutters and hackerspaces. Unlike a traditional duplex repeater that receives and transmits at the same time on two different frequencies, a simplex repeater first receives a voice message, stores it, and then retransmits it out. Repeaters are great for the new ham, but I prefer simplex operation (communicating directly without the aid of a repeater) with the FM modes. Diy Simplex Repeater. It features exceptional voice recording quality and higher capacity than any other comparable device on the market. Ken Mixon @kmixon. 7V Li-ion(900 mAh) or external 5-24 V DC supply Build-in rechargeable Li. These repeaters use two frequencies in a duplex fashion to extend the range of the radio system and make signals much stronger. 5KHz Operating modes Simplex, Repeater TX offset ( 750kHz) Scanning Speed 130 msec per channel Automatic Level control (ALC) For consistant audio levels Antenna Impeadance 50 Ohms Operating Volts nominal 13. It is open from 5AM to 11PM. T he Simple Simplex Repeater is a low-cost, easy-to-build project that, when interfaced with a transceiver, acts as a limited simplex re-peater. In my case, I live west of the urban sprawl so I need help being heard on 2 meters. 275 MHz simplex (on repeater offset) 446. 415; 2 - 146. Surecom Repeater SR-112,SR-628,SR-328,SR-629 46-C 40cm DIY Repeater Controller Cable Regular price $2 16 $2. 100 - repeater, tone 100 hz City of Draper Emergency District Nets: Corner Canyon District: Thursday at 9pm on 146. S: the VFO/MR button is at the front by the top right in most cases. SURECOM SR-112 simplex repeater Controller (Please choose cable) On Sale from $71. 275 MHz simplex frequency was determined by checking the USA 70 Centimeter band plan. Communication is a vital part of a preparedness system and being able to reach family members and members of my group are high on my priority list. Please read the "Latest System News" for important news about SSL!(updated September 10, 2018) QSL. Within the UK a total of 16 FM repeater channels spaced 10kHz apart have been allocated. Its signal reception and treatment adopted classical tube circuit, and used TA7343 as a stereo decoder that then result in stereo o. 675 and 444. There are 2 types of scratch pad memories, those for simplex operation, L1–L5, and those for duplex (repeater) operation, R1–R5. The repeater is one of the most relied upon tools in the tool box. When they are logged in, trustees/owners will see the data we have for their coordinations. DSTAR P25, C4FM and DMR are supported on this new setup. GMRS simplex, no repeater with 50 watt radios and big base antennas might fill in the areas you need. Condition is Used. 000: Harga: RADIO KOMUNIKASI HT - RIG - SSB DAN REPEATER HTRp45. Within the simplex category of DMR hotspot, there are quite a few variations and manufacturers to choose from. From the radio, must set radio to use EXT. 200 MHz simplex…. Radioshop888. Cable Assemblies – Fiber Optic Cables are in stock at DigiKey. Usefull Ham Radio Links; Circuits and Solder; Electronics DIY. 880Mhz it has a PL of 156. FT2DR frequency: 446. DECLARE: Nano series products selling on eBay, AliExpress, Amazon , no relation to BI7JTA(me) and VR2VYE, nor obtained any authorization of me. Extends PeaterPyPer - A simplex repeater that parrots communication Completely rebuilt his design to remove -ux security headaches Software link of the two physical devices Station ID every 10 minutes from prerecorded wav Turns out the RasPy uses GPIO pins in an unexpected way… Always use the most recent software libraries. We currently are selling six different repeater controller products, as well as several repeater accessory products. Order Now! Cable Assemblies ship same day. ADS-SR1 Simplex Repeater. A simplex repeater is also known as a store-and-forward voice repeater. 5-----Health Park Hospital SW Fort Myers: FMARC Analog FM and Yaesu Fusion (Linked via Wires-X in Room 21805 to 444. SURECOM SR-112 simplex repeater Controller The SR-112 is a multi-function voice recorder device that connects to virtually any handheld, base, or mobile radio. SR-628 Duplex Repeater Controller The SR-628 is a multi-function and cheaper device that connects any handheld or mobile radio. This has the effect of doubling the time required to transmit a message, but while a traditional repeater typically costs thousands of dollars and might be semi-portable at best, a simplex repeater can be set up with a single handheld radio and operated from batteries. This means that double the time would be taken for each comm message and at the same time greatly extending the range of the transmission. This is much more complex than that. Frequency Range: 400-470 MHZ, Frequency Spacing: 10MHZ for UHF (TC-851) RX frequency is higher than TX such as RX 450. Repeater listing compiled by Dave Timmons (W2DST) from data supplied by Jim Stefano (W2COP), 1st Vice-President of the Upper New York Repeater Council (UNYREPCO), Western New York - Southern Ontario Repeater Council (WNYSORC), the ARRL 2014-2015 Repeater Directory, and local users of the repeaters. 000: Harga: Hustler G3 Antena Base VHF 144-148M 3dB Ori Baru. The following is a list of our requirements for a GoKit - 2m and 70cm operation with FM simplex and repeaters APRS capability and tactical display for portable coordination Digital messaging capability Weather band monitoring capability…. ADS-SR1 Simplex Repeater. Ken Mixon @kmixon. Like a gateway, it's also capable of connecting to the internet to send and receive data. SR-112 Radio record simplex repeater Controller The SR-112 is a multi-function voice recorder device that connects to virtually any handheld, base, or mobile radio. In this video, the Argent ADS-SR1 Simplex Repeater is used with a handheld ham radio. The MMDVM/Raspberry-Pi combo will turn a single analog radio into a high powered hotspot or 2 radios into a fully featured digital voice repeater. Comments welcome! When a new ham decides to learn Morse Code and start operating CW, one of the first things he or she must do is choose a key. 210 MHz PL 173. Frequency Range 476. 7900 2) 145. Base antennas at each end will have a good chance of being in constant contact of a mobile driving between them. How to program the BaoFeng radio (Simplex) Step 1: Press the VFO/MR mode on. The Echo link sysop mode, which is available on this radio allows you to connect your PC with the mobile transceiver; thus, making this radio a great choice. Racks, Mounts & Screens 4K 18Gbps HDMI Repeater and HDCP Converter. Repeaters transmit between channels 1-8 and receive between channels 31 and 38. The Seventy Centimetre ham radio band is very popular for local and mobile communications like many of the lower frequency VHF bands including 2 Metres. Please read the "Latest System News" for important news about SSL!(updated September 10, 2018) QSL. Its signal reception and treatment adopted classical tube circuit, and used TA7343 as a stereo decoder that then result in stereo o. Note: If you have selected a simplex frequency or a repeater frequency that does not require a sub audible tone to access, please proceed to Step #6. A simplex repeater is a "store and forward" device, where a transceiver is set to listen on a single frequency, digitally record whatever it hears, and replay the audio clip over the same frequency. Hotspot is Simplex, Repeater is Duplex. If PL (CTCSS) encode/decode is required, use 114. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne. W5YJ 190497 Repeater 2M 146. 92 simplex (the 2 meter receive frequency) and 445. willjr75 said:. Harga: Simplex Repeater controller / repeater HT simplex HTRp200. N4FSC Repeater – 145. I haven’t done any simplex on 2 meter for quite some time I’ve got a 2 meter rig in my pickup and it has plenty of power to hit the repeater. Compared with CB (Citizens Band Radio) at 27 MHz: CB radios may transmit with more power than MURS units may, but communications range is highly dependent on channel congestion and atmospheric conditions. ARDUINO based simplex HAM repeater. 46 simplex License Exams: Feb 1 ,2020 May 2, 2020 Aug 1, 2020 Nov 7, 2020 License exams begin at 12:00 Noon at the Bishop Salvation Army. New England VoIP Simplex Node Database as of August 31, 2020 07:00Z. In ham radio, a Hotspot is a kind of repeater, made up of an Internet-connected computer, an interface board called a Node Adapter, and an FM transceiver and antenna. It is employed advanced digital voice recording and processing technology to record the received signal (up to 120 seconds), and retransmit it on a same frequency channel. The amateur radio repeater has a very sharp filter to detect whether the exact tone is present. Ham Radio Repeater Frequencies It has recently become easy to keep tabs on repeater frequencies, features and available modes of operation. net is a Web site dedicated to ham radio (amateur radio). Some standalones are operating in dual-mode (analog/digital). shows a timer circuit. The repeater is located in Lakewood, Ohio. Free delivery and returns on eligible orders. TR10 Simplex Repeater Controller for Ham Radio Up to 180 seconds total recording time DTMF remote control for all functions Auto repeat message Operates from 14500 3. Repeater control program (duplex or simplex operation). Shown is the operational transceiver while receiving our local repeater PI6NOS at 1298. Coverage map. Baofeng UV5R Repeater: A repeater is a device that can easily "repeat" radio signals and extend the range of radios. Repeater Controllers for GE MASTR II. Repeaters recommended for use by nearby highway. Unlike most repeaters, a simplex repeater operates on a single frequency by recording the incoming transmission and playing back this recording on the same frequency. For new hams who are likely to get started in local VHF/UHF operation, the national calling frequencies to be concerned with are 2m and 70cm FM simplex (non-repeater). I know some experienced guys (and gals) out there may be saying – “What an amatuer…. Here are some photos of a design by Mani, KH2FI. SimplexRadio. There are a few street parking spots. rain-telecom. 560 CITY City simplex net 6 146. A couple of hams in the area started this net because it just seemed like a fun thing to do. AMSAT 10605 Concord St, #304 Kensington, MD 20895-2526 USA Toll-Free: +1 (888) 322-6728 Phone: +1 (301) 822-4376 Fax: +1 (301) 822-4371 [email protected] Have your Radio identification number Handy that you got from DMR-MARC. Repeaters by nearest city/town. Operators who would. various repeaters around town with a 1/ 4-wave antenna, but simplex operation left a lot to be desired. The Echo link sysop mode, which is available on this radio allows you to connect your PC with the mobile transceiver; thus, making this radio a great choice. Well, all the repeaters and mobiles and most bases on 2-meters are vertical polarization. Unlike a traditional duplex repeater that receives and transmits at the same time on two different frequencies, a simplex repeater first receives a voice message, stores it, and then retransmits it out. Take care the + - poles ! ! First full turn off the hotspot after pressing for 5 seconds, then soldering , otherwise it will burn your device!. You’ll lose a lot of signal if you run a 2 meter antenna horizontal. 5000 3) 446. Maleny DSTAR repeater gets upgraded. That is, it can act as a repeater between the two independent channels. The original thread asked for way to build a portable P25 repeater. Passive repeaters have no amplifier and pass information from one antenna to another via cable. 4 in/out, analog, 50 watts. read more | digg story. Horizontal is only used (on 2m) for ssb/cw on the low end of the band, very little activity there (virtually none). On/Off switch. Like a gateway, it's also capable of connecting to the internet to send and receive data. Summary of Styles and Designs. If you put your hotspot frequency in a repeater band your radio may automatically switch into repeater mode and transmit on the wrong frequency. After the online resources to mount its full duplex MMDVM digital repeater based on Arduino and Nucleo STM32F4, here is the time to explain how to set up a "homemade" access point (Hotspot) MMDVM ba. Mototrbo™ repeaters operating in dual-mode do not. SURECOM SR-112 + 48-K1 simplex repeater Controller For KENWOOD MOBILE. If the repeater requires a sub audible tone, set the tone in the SET mode. The repeater offsets are determined by the values set in menu items 40-43. LED lights when recording. 55 Simplex 88. Within the UK a total of 16 FM repeater channels spaced 10kHz apart have been allocated. Chromecast Emulator for Google Chrome. When a repeater is selected, frequency and mode is already in the radio, no programming! Simplex repeater mode. •Local Simplex users may not necessarily hear each other, but may be able to use the same link. Shop Simplex Motorola repeater interface cable. I live nearly 60 miles north and can hit it with no issues. There are 2 types of scratch pad memories, those for simplex operation, L1–L5, and those for duplex (repeater) operation, R1–R5. Simplex Repeaters - posted in General Discussion: About 3 years ago I purchased an Argent simplex repeater. A simple way to build one is to take two portable radios a connect them as follows: Radio1<-->Radio2 COR----->PTT RxAudio-->MicAudio Gnd<---->Gnd This will make a good poor mans repeater system suitable for voice communications. Diy simplex repeater Ìîãó÷èå ðåéíäæåðû 2017 Ìîãó÷èå ðåéíäæåðû â êèíî! Íèíäçÿ ñòàëü 24 ñåçîí î ïðèêëþ÷åíèÿõ ðåéíäæåðîâ Çëîäåè Ïðîòèâíèêè ìîãó÷èõ ðåéíäæåðîâ. Diy simplex repeater. 46 simplex License Exams: Feb 1 ,2020 May 2, 2020 Aug 1, 2020 Nov 7, 2020 License exams begin at 12:00 Noon at the Bishop Salvation Army. These repeaters use two frequencies in a duplex fashion to extend the range of the radio system and make signals much stronger. Repeater Controller SR Simplex DIY Cable C with SURECOM 11246 Plug. The RFinder (RepeaterFinder) Worldwide Repeater Directory is available as an application for mobile devices (iPhone, iPads, Android phones and tablets). Frequency PL Tone Callsign Location Description Status; 145. Surecom Repeater SR-112,SR-628,SR-328,SR-629 46-C 40cm DIY Repeater Controller Cable Regular price $2 16 $2. The RT-SRC1+ is a state-of-the-art simplex repeater controller. N4FSC Repeater – 145. With the storms among us all be safe and keep an eye on the weather however if we loose the repeaters please use the following for simplex communications. This is a tri band transmit and receive radio. The extender system, can improve your communications greatly,even over very b. In my case, I live west of the urban sprawl so I need help being heard on 2 meters. If repeaters are down use the BARC EmComm 146. Large Channel Capacity With Priority Scan The 50 Watt VXR-9000 is designed for simplex mode with single-antenna Duplexer UHF 440 – 470 MHz* *50 Watt only VXR-9000 Series SPECIFICATION SHEET vertexstandard. IGate – this is a portal to the internet. An alternative if you do not have a radio capable of cross band repeat is a simplex repeater like the MFJ-662 or Argent Data Systems ADS-SR1 , which use the store-and-forward technique. By the way I am N3LYT been a ham for about 25 years own a 2 meter repeater, and a 6 meter one. A system ON/OFF switch shall be located in proximity to the Fire Alarm Control Panel/Elevator Control Panel. As a simplex repeater, the MFJ-662 with another radio digitally records audio from an out-of-range HT/Mobile and then retransmits to other HT/Mobiles. About Nano Series DIY Project for MMDVM. The ADS-SR1 is a multi-function voice recorder device that connects to virtually any handheld, base, or mobile radio. Overview: Broadway Limited has issued a new line of H0-Scale locomotives called "Blueline". It also has a remote head control, a wider band as well as a cross-band receiver plus a simplex checker. It's been that way since kids first started playing with walkie-talkies…. This is called duplexing. 0 # usikker på om dette faktiskt hjelper. On HF it doesn’t matter so much but on 2-meters it does. ru Mikrotik mdns. Located in NW Travis County, 30′ AGL. a simplex repeater can be set up with a single handheld radio and operated from batteries. When they are logged in, trustees/owners will see the data we have for their coordinations. Using internal encoders, integrated stepper motor actuators achieve enhanced performance, higher efficiencies and prevent loss of synchronization (stall). Commercial fire cellular alarm monitoring service from $35 a month. 625 mhz TX 440. Extends PeaterPyPer - A simplex repeater that parrots communication Completely rebuilt his design to remove -ux security headaches Software link of the two physical devices Station ID every 10 minutes from prerecorded wav Turns out the RasPy uses GPIO pins in an unexpected way… Always use the most recent software libraries. Edit: also mean to say simplex (HT to HT) is pretty much ignored by the "community" in my experience, unless you happen to have configured yourself to step on a repeater in the area or are using designated freqs reserved for gov or commercial purposes. Based on other great reviews I ordered a 2M J-pole, which I have mounted up on my roof. Use that, and rig up some sort of solar power charging system so you can park the whole kit atop a parking garage or tall office building. The SR-629 has 2 audio ports input and out , they are used to connect with mobile and handheld radio. QYT KT-8900 KT-8900R Programming Software. Requiring a replacement antenna for my aging 2mtr band 5λ/8 wave ground plane that is primarily used for local FM simplex and repeater communication, I settled on the simpler 1λ/4 wave ground plane antenna designed for approximately 146. Only for a better understanding, it represents a VHF duplex repeater with a 145000kHz RX frequency and a 600Khz frequency shift for transmitting but the user can obviously choose what he likes. Repeating means that what the Receiver Audio is hearing, is also what the Transmit Audio, is Transmitting. On repeater WA6HAM (Ch-22 on your radio): 145. DSTAR P25, C4FM and DMR are supported on this new setup. After the online resources to mount its full duplex MMDVM digital repeater based on Arduino and Nucleo STM32F4, here is the time to explain how to set up a "homemade" access point (Hotspot) MMDVM ba. The EAARS Repeater on Mt. 32 simplex (the 2 meter transmit frequency) and 445. •NE8K-L (145. 170 (-) 136. Racks, Mounts & Screens 4K 18Gbps HDMI Repeater and HDCP Converter. Baofeng UV5R Repeater: A repeater is a device that can easily "repeat" radio signals and extend the range of radios. Buy Now! $1,379. IRLP operates a worldwide network of dedicated servers and nodes offering very stable worldwide voice communications between hundreds of towns and cities. I also do most of my VHF work using SSB and CW. Default is: 1 # ModeHang=10 # Time to stay in mode after receiption. Simplex Repeater Controller RT-SRC1 for UV-5R UV5R Extend your radio range much Find many great new & used options and get the best deals for Simplex Repeater Controller RT-SRC1 for UV-5R UV5R Extend your radio range much at the best online prices at eBay. Bob K0NR operates portable using 2m SSB, with a horizontally-polarized antenna. org (pin 4 "PR9" is audio output before discriminator). I would especially suggest (in the US) the 2-meter calling frequency of 146. For all 2-Meter radio operators traveling in North America we publish, for online delivery only, field-tested VHF/FM, 2-M repeater frequency charts showing basic information for travelers for many repeaters within the United States and Canada. 000 DMR Simplex 1 – CC1 TG99 TS1 446. The "dot four repeater" operates on an output frequency of 444. for covering long distances/wider areas. APRS object info. 7900 2) 145. National Digital Simplex Frequencies (12. At GeoArm, we provide nationwide cellular LTE fire alarm monitoring services. We currently are selling six different repeater controller products, as well as several repeater accessory products. These repeater channels are especially useful in terrain where there may be obstructions between radios, dramatically reducing the radio’s broadcast range. Compared with CB (Citizens Band Radio) at 27 MHz: CB radios may transmit with more power than MURS units may, but communications range is highly dependent on channel congestion and atmospheric conditions. provide voice override control of the Repeater/Simplex System at the Command Post. Repeaters updated recently (days) Last 7 days (0) Last 30 days (0) Last 6 months (0). Within the UK a total of 16 FM repeater channels spaced 10kHz apart have been allocated. Subaudible tones are superimposed over your normal signal and must be set in advance. 750 Repeaters). need repeaters and signals are shifted slightly and retransmitted (Duplexing), and repeaters are typically located in panoramic/high locations. This is not the well-known Simplex Repeater which is a store and forward system (still pretty handy system though). The video below describes a very simple and inexpensive “simplex repeater” that most anyone can make. The protocol, during an outage is to use 146. Repeating means that what the Receiver Audio is hearing, is also what the Transmit Audio, is Transmitting. Starter Set for DIY-Production of HDMI Cables. Amateur operators to encrypt. ) Hopefully this will turn into a fun little tutorial someday and I can move this to the DIY sub-forum. We've been thinking about building a portable GoKit for VHF/UHF EMCOMM and Field Day Applications for a while now. I’ve received very favorable signal reports and I can hit repeaters 40 miles away and 15+ miles over simplex using my 50-watt Yaesu FTM-100D. RepeaterBook is an online repeater directory that started in 2006 as HWHam. Duplex=0 # Is this station Simplex or Duplex. Welcome to the Barron County Amateur Radio Association located in northwestern Wisconsin. These DMR systems operate under individual licenses working in Direct Mode (unit-to-unit) or using a Base Station (BS) for repeating. The exiting light pulses produced by the circuit match the pulses from the remote but are about 10 times more powerful. Its signal reception and treatment adopted classical tube circuit, and used TA7343 as a stereo decoder that then result in stereo o. Played with it off and on and found out it could handle digital transmissions as well as voice. 5 24/7 United States OK Guymon English KB5IIM *ARES_OK* 391281 Conference 2M 144. The video below describes a very simple and inexpensive “simplex repeater” that most anyone can make. Repeater types are layered and can be switched on and off as required (click the button in the top left of the map). For license exams on other dates please contact B. This was one of the first projects I did using the Arduino with Amateur Radio. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne. An alternative if you do not have a radio capable of cross band repeat is a simplex repeater like the MFJ-662 or Argent Data Systems ADS-SR1 , which use the store-and-forward technique. GMRS transceivers can also use antenna systems which provide gain, and are allowed repeaters and base stations. Visit the post for more. Callsign Lookup. 560 CITY City simplex net 6 146. The 2m national simplex calling frequency is sort of a universal (within the USA) place to make contact when you are not sure where to start.