An amateur radio repeater is an electronic device that receives a weak or lowlevel amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. This link is listed in our web site directory since saturday mar 31 2018, and till today cross band repeaters has been followed for a total of 147 times. Using separate transmit and receive antennas on the cross band repeaters would allow a vhf beam to extend distance emergency measures radio group emrg ottawa ares 22 cross band repeater uhf portabe cross band repeater uhf portabe uhf uhf vhf. Connecting vhf to uhf, uhf to uhf, and vhf to vhf, the x band 50 provides full uhf and vhf interoperability. Basicly you would have a mobile radio that is dual banddual recieve set to recieve on 70cm and transmit on 2 meters. Sep 18, 2006 i am curious if the people who own mobiles with crossband repeater functionality ever use it. This allows a variety of unique applications, including intersystem radio bridges. Cross band repeater vhf handietalkie a yellow knob and a longer antenna identify the cross band repeater vhf handietalkie. I can get the 7800 for considerably less, even though i. In bidirectional repeat, repeater tails will lock you out until the tail drops. Radiotone cross band repeater controller radioshop888 rt.
Adapted with permission from santa clara county aresraces another way to handle this is for every operator using the crossband repeater to id themselves and the crossband repeater with every transmission. The 1002 provides time for the repeater to bring up the cross band repeater. Ham radio cross band repeater free knowledge base the duck. Radiotone cross band repeater controller include adaptor cable x 2 the rtcrc1 is a stateoftheart cross band duplex repeater controller.
If im out at say the mall can i use it to get into my rptr. Click here to learn more about crossband repeater options. Select a 2m frequency on the left side vfo or memory channel. Another way to do it is to take a radio thats rated for 50 watts with a big heatsink like a mobile and turn it down to low power. Simply put, crossband repeating is an effective way to extend the range of your handheld radio.
Ht on ultralow power, communicating through a crossband repeater to an icp or eoc when it could not go direct. It is an easy of operation and and highly flexible for setting up bidirection cross band duplex repeater with radio. Crossband operation works because the frequency difference between the transmit and receive frequencies are sufficiently distant in frequency to eliminate receiver desensing. Crossband repeater id like to setup a frequencyagile crossband repeater at my house on a hilltop to be used by me and a few authorized ham friends when we are portable and mobile. Linksys official support configuring the cross band settings. Dtmf remote control function with password protection. Xband repeater with 2 btech mobiles baofeng tech page 3 of 4 3. All this talk about cross band repeater mods lately, arent they, er, well you know, technically illegal to use unless you id them.
A crossband system has the ability to work on different frequency bands, as well as frequencies within the same band. The crossband repeat function works by using using a dual band mobile or base radio to retransmit on one frequency band a signal received on another frequency band, and vice versa. The sr628 has 2 audio ports input and out, they are used to connect with mobile and handheld radio. The crossband repeat function works by using using a dual band mobile or base radio to retransmit on one frequency band a signal received on. It can be used for two duplex repeaters, a duplex repeater with a link radio, or to build a bidirectional cross band repeater with simplex radios. Multisite crossband repeater emergency communication.
To turn off mini repeater push lock ic281h cross band repeater access codes. The repeater provides full vfo capability in one box. Cross band full duplex repeater controller for all band. When doing so i could not get the radio to key the repeater and in some cases could not get the 2820 to cross band when in dv mode on the portable. A word about using crossband repeaters cbrs by neil robin, wa7nbf march 14, 2009 background information. Im not sure that i would use an ht to cross band repeat, however i have had several instances where it would have really come in handy where i was not. The dilemma i had was the radio manual does not mention how to activate the cross band repeater function.
Simplex communications suffer from limited range and may not be effective in an. Crossband cross band, cross band operation is a method of telecommunication in which a radio station receives signals on one frequency and simultaneously transmits on another for the purpose of full duplex communication or signal relay. Then your mobile can relay your transmission to a repeater for even greater range. The system is being used in an effort to detect telemetry from three recently deployed cubesats. I am curious if the people who own mobiles with crossband repeater functionality ever use it. The only true special consideration would be to make sure the antenna is dual band. I would say use whatever antenna you need to do the normal function you want the cross band repeat to do. A repeater with heavy traffic could burn up your radio. The repeater control is provided by a choice of software applications. Connecting vhf to uhf, uhf to uhf, and vhf to vhf, the xband 50 provides full uhf and vhf interoperability. It is an easy of operation, cost effective and highly flexible platform for setting up bidirection cross band duplex repeater with mobile and handheld radio.
Radiotone cross band repeater controller include k adaptor cable x 2 the rtcrc1 is a stateoftheart cross band duplex repeater controller. Crossband crossband, cross band operation is a method of telecommunication in which a radio station receives signals on one frequency and simultaneously. No logic, just a simple cable with 4 resistors are needed. On the vhf side just use the repeater frequency including offset, do not enter or use any pl.
You will need to connect your radio to the programming software at least once so you can activate the crossband repeat feature. Cross band repeaters can be used back to back to extend the range of simplex communications. You will probably want to program the nx5300 so that it transmits a pl tone, lets say 123. Ive used my wouxun kguv8ds cross band repeat just to. A repeater transmits a lot more than a singleuser radio, so typically you want a radio rated for a high duty cycle. Advantages of crossband repeating cross band repeaters 1. It allows use of standard radios such as a mobile radio to be used as a repeater so long as the radio has crossband capability. Any dual band or dedicated 70cm ht can be used to operate through a cross band repeater. Its called cross band repeat and it is some cool stuff. Surecom sr628 cross band duplex radio repeater controller. Buy products related to two way radio and repeater products and see what customers say about two way radio and repeater products on free delivery possible on eligible purchases. The repeater sends it to your mobile, which relays it to your handheld.
Talinfone tfr2 cross band repeater controller radio over zello controller. Now the ht i use is the ic92ad, and it must be set for what you are. This provides interoperability between ground crew and air crew for forestry, hospitals and oil rigs. Choose this option if you dont need the cross band feature. The duty cycle of a repeater far exceeds the duty cycle of either the ft8800 or tmv71a. You can use almost any icom handheld to contact your 2720h back in your vehicle for crossband repeating. Ht cross band repeaters page 2 worldwidedx radio forum. Each time the repeater comes up, your radio is in tx. You can help keep repeaterbook alive by offering a small donation through paypal, a secure way to donate. Other users can slip in before the tail drops, keeping the person using cross band from getting in. To operate cross band vhfuhf using a single antenna, a small dual band duplexer such as a opek du500 or mfj 916b would be required. The main category is radio repeaters that is about radio repeaters. You can do that, but you dont want to leave it on cross band a long period time. The nhrc7 is a true dualport bridging repeater controller.
On my mobile, in this case the same radio i use for dstar cross band icom 5100 i use the same simplex frequency and fm mode i use for my connection to my handheld on uhf. Crossband repeater operation kb9vbr jpole antennas. Just wondering if any one has put together a list of dual band vu radios mobile or ht that cross band repeat. Setup the crossband repeater on a kenwood tm vt71a af5dn. Sr628 cross band duplex repeater controller with kenwood. Then your ht would be on 70cm and the mobile radio in the car would be the repeater. Amateur radios most comprehensive, worldwide, free repeater directory. Cross band repeaters wisconsin valley radio association. If im out at say the mall can i use it to get into. Everyday examples of crossband repeaters are repeater receive sites that hear the. First off, thank you scott n7jqq for your research and suggestion to use the icom 2820h as a dstar compatible cross band repeater.
Im looking at the ft8800 by yeasu but its terribly expensive. Encouraging and supporting overtheair repeater use. If the 2meter repeater youre linked to has a short carrier tail and few do, youll operate fine. This crossband provides an interoperable solution that provides overtheair programming otap. The rtcrc1 is a stateoftheart cross band duplex repeater controller. Jul 22, 2018 this feature is not available right now. The weaker 70cm transceiver, often a ht, can work through a mobile or base station to communicate with a 2m simplex net, taking full advantage of the mobile or base transceiver higher power or higher antenna elevation.
Cross band full duplex repeater controller baofeng uv5r. Building a bucket ham repeater modern survival online. Cross band repeating is a feature with some vhfuhf dual banders that simply repeats what it receives on one band and automatically retransmit it on the other band. The tyt th7800 is an excellent dual band mobile ham radio with great crossband functionality and ability to be used as a repeater. Most of us have not used specialized repeaters that provide fillin communications when normal duplex repeaters dont cover an area or are out of service. I really see no reason this cant work via any mobile vhfuhf that can crossband. You can cross band repeat on the same band 2 meters in and 2 meters out if you have a powerful repeater that might be up on a mountain or tall building, but small mobile radios with cross band repeat functionality are designed to repeat signals on different bands. I can get the 7800 for considerably less, even though i lose crossband repeat and dual receive. If the 2meter repeater youre linked to has a long carrier tail with a courtesy beep, you arent going to be able to access your cross. The cross band radio will not drop out until the repeater tail drops. Say, if youre trying to reach a repeater, use whatever antenna it would normally take to hit that repeater. There are a few catches but if you are set up like i am and own a 2820h and another dstar compatible radio you can set up the ic2820h as a cross band repeater. The xband air provides seamless interband communications between vhf or uhf frequencies and air band frequencies.
Crossband crossband, cross band operation is a method of telecommunication in which a radio station receives signals on one frequency and simultaneously transmits on another for the purpose of full duplex communication or signal relay to avoid interference within the equipment at the station, the two frequencies used need to be separated, and ideally on different bands. What you will need to do to activate the crossband repeater mode is. Bridgecom systems bcr crossband fm repeater two way radio repeaters available in 6 options. If the device connects to the extender using 5 ghz, then the extender will go through 5 ghz to transmit data. Exit the menus and connect the radios with a rj45 cable diagram on. Rt23 crossband repeater dual ptt walkie talkie retevis. There are a few catches but if you are set up like i am and. If you need programming cable, please order c9018ac9055a separately. Everyday examples of crossband repeaters are repeater receive sites that hear the input signals on 2m and retransmit those signals on a frequency higher than 220 mhz. Jan 12, 2017 2m qso 10w accessory ailunce ailunce hd1 dmr dual band amateur ham radio amateur radio arrl atas 120a baofeng baofeng dm5r chirp cross band repeater dm5r dmr dmr radio dmr range test dual band firmware upgrade ham radio handheld hd1 hf hf50 icom kt8900d lotw mini mobile radio mobile radio my lotw programming software quad standby radio. Apr 14, 2011 yes that is correct, you are able to use a icom 2820h as a cross band repeater and talk over the dstar network. The goal is to be able to access distant 2m repeaters while portable by taking advantage of my home bases height and power.
Talinfone tfr2 cross band repeater controller radio over. Take two pieces of the hytera md785 and build your own crossband repeater. Anytime that you are using an ht, and cannot be heard into the repeater system, or when you are working an extended event, and do not. Mobility typical scenario a mobileportable crossband repeater is set up in a parking lot with a highgain antenna and mediumhigh power operation. The crossband fm voice repeater aboard the international space station has not officially been activated for general amateur use, although some stations have reported successful contacts. Dual band mobile used as a repeater survival monkey forums. The repeater can also be configured to work as a bridge between a simplex channel and another repeater.
This eliminates the separation requirements of two antennas. It is an easy of operation and cost effective and highly flexible platform for setting up bidirection cross band duplex repeater with mobile radio and handheld radio. In addition,two resistors must be soldered to a pin din plug which will be connected to the acc. Communications manual january 4, 2011 chapter 12 4. Communication just got easier with icoms xband air repeater.
Some radios will allow you to program a vhf frequency on one side, and. This allows both radios to use a common antenna without the vhf txrx interfering with the uhf txrx. The frequencies it supports for crossband is 440mhz to 144mhz, which covers most users with different requirements. About cross band repeaters the resource is currently listed in in a single category.
Yes that is correct, you are able to use a icom 2820h as a cross band repeater and talk over the dstar network. This particular repeater is busy all the time, especially during the morning and evening drive times. The repeater can receive from a user, link to another repeater and transmit to a different user. Nov 24, 2014 set the bucket repeater to cross band between a marine band frequency and a gmrs frequency, and now every radio has the ability for twoway communication with every other radio in the group either directly, or via the bucket repeater. Ariss crossband repeater not available for general. Yaesu ftm400 xdr cross band repeat demonstration duration. It could also act as a bridge between two usual repeaters if necessary. An amateur radio repeater system consisting of a 70cm repeater and a 2meter digipeater and igate. No more repeater output back into the uhf side, and by adding the pl encode and decode to uhf, we solve the problem of anyone elses transmission hitting the repeater. Keep in mind that when using a dmrdmr repeater, audio will be converted to analog first causing a slightly extra delay and loose of quality. Crossband repeating is a process where a ham transmits one signal on one band typically uhf, and it is received by another radio with a better antennapower installation, and retransmitted typically on vhf to another radio system, or a repeater.
Discussion in vhfuhf 50mhz and beyond started by kb7nrn, aug 26, 2016. To operate the ts790a in the repeater cross band mode,diode d32 on the control board must be opened. The rtcrc1 has 2 audio ports they are used to connect with mobile and handheld radio. Cross banding was a sales feature about 20 years ago. I spent some time recently trying different methods of codes pldcs on the rx side of the 2820. The best bang for the buck dual band available now that can crossband new is the yaesu ft8800, or of course the really great kenwood ts 2000 that can cross band not only uhf to vhf, but to hf as well you really need to have a dual band hand held to cross band operate, so you can monitor your link frequency. The x band 50 is compact in size, easy to use, and operates as a control station without the need of a network. The tfr2 is a stateoftheart cross band duplex repeater controller. This is a radio cross band duplex repeater controller.
Enter menu 43 repm and select ctdcs for two mobiles this will require the repeater forwarding xband repeat to activate once the confirmed pl signal ctcss or dcs is received will transmit it on. Works with fm and dmr of fm to dmr or the other way around. Still useful though not many models have this feature anymore. The crossband repeater can be used to work as a simple emergency voice repeater for dualband radios. Typical functionality, such as callsign routing, and repeatertorepeater linking are supported. The xband 50 is compact in size, easy to use, and operates as a control station without the need of a network.