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Repeaters


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Posted

Hey, here WRBZ701 I would like to know how I do to put extension of my repeater in analog form, as a second repeater, so that one is connected to the same frequency and can expand the coverage. So having a second repeater with the same TX and Rx can you listen to an example for the first repeater?

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Posted
42 minutes ago, Armas93 said:

Hey, here WRBZ701 I would like to know how I do to put extension of my repeater in analog form, as a second repeater, so that one is connected to the same frequency and can expand the coverage. So having a second repeater with the same TX and Rx can you listen to an example for the first repeater?

Under the current interpretation of fcc rules it would be difficult to accomplish.

Quote

 

A GMRS user can expect a communications range of one to twenty-five miles depending on station class, terrain, and repeater use.  GMRS stations cannot be interconnected with the public switched telephone network or any other network for the purpose of carrying GMRS communications, but these networks can be used for remote control of repeater stations.  In other words, repeaters may not be linked via the internet—an example of an “other network” in the rules—to extend the range of the communications across a large geographic area.  Linking multiple repeaters to enable a repeater outside the communications range of the handheld or mobile device to retransmit messages violates sections 95.1733(a)(8) and 95.1749 of the Commission’s rules, and potentially other rules in 47 C.F.R.  Repeaters may be connected to the telephone network or other networks only for purposes of remote control of a GMRS station, not for carrying communication signals. 

In addition to violating Commission rules, linking repeaters is not in the public interest.  Because GMRS spectrum is limited and used on a shared “commons” basis, the service only works well on a localized basis when users can hear each other and cooperate in the sharing of channels.  Linking repeaters not only increases the potential for interference, but also uses up a limited spectrum resource over much larger areas than intended, limiting localized availability of the repeater channels.

GMRS and the Family Radio Service (FRS), which share many of the GMRS channels, are intended for individuals such as family members and friends, scouting troops, emergency response groups, and hobbyists to communicate with each other over short distances, directly or through a repeater station.  Linking repeaters, via the internet or other networks, undermines the purpose and usefulness of the GMRS and FRS.  

 

Welcome!

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Posted

Thank you, I have read the GMRS rules, that's why I asked the question, since no repeater can connect to the internet network, for example a repeater is used in the atheus when being connected to the Networks we can talk to other states over long distances because they are connected to each other even if they are not on the same frequency, that's what I meant, that's why I asked that without being in the network connected you can use the same frequency to link one repeater to another under the same administrative license that FCC gives you. At the point of reach where between both repeaters to extend the coverage. Similar to telephone networks! Please don't misunderstand my answer, best regards WRBZ701

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Posted

To accomplish this with out the internet the second repeater would have to be on different frequencies then the normal “pairs”.  Not gonna happen under gmrs rules.   However this can be done with ham.    How far are you trying to get?  Most of the repeaters in my area are getting 100-200 mile radius.   That means 2 radios can be up to 400miles apart and talk no problem.   I’d concentrate on getting 50 watts to the coax, (many/most duplexers take 1/2 the wattage before the coax) and a good antenna up high before spending money on a whole new repeater set up.   

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Posted

Is it possible? Yes. Is it practical? No. It could be achieved if you have enough tower height and plenty of filtering. You would have 2 "repeaters" at each location, 1 would be the repeater, the other would be a "fixed station" and have to follow those rules. The fixed station would be a duplex RF link between the two repeater sites, but you would need to use directional antennas and significant physical vertical separation from the repeater antenna and the link antenna. Likely you would have to run the link and repeater as far apart in frequency as possible, repeater on 15 and link on 22 or the other way around. 

Can it be made to work? Probably. Will it be expensive? Yep. Will it be worth it? Not for the average person.

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Posted

It can be done as a voting system which isn't cheap. The two repeaters listen to the incoming signal then the one with the better receive "score" triggers its transmitter. Yes, the repeaters are interconnected but it's for the purpose of control and not relaying messages.

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Posted (edited)
On 3/28/2025 at 2:48 PM, WRUE951 said:

 why dont you spend a little time and just get a damn HAM license and do it right.

As I said and I'll say it again not everyone is into Ham and I'm getting tired in people keep pushing ham to GMRS users that have no interest in doing so. Just leave us alone about Amateur Radios PLEASE!!!

Edited by ULTRA2
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Posted
56 minutes ago, ULTRA2 said:

As I said and I'll say it again not everyone is into Ham and I'm getting tired in people keep pushing ham to GMRS users that have no interest in doing so. Just leave us alone about Amateur Radios PLEASE!!!

As i said,, If you want to link repeaters and keep it legal, go to in HAM where it can be done right..   DO YOU HERE ME NOW!     🤣    

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