2 GRMS Repeaters on the Same Frequency.

[Mrsig]

I don't need to be told about the law with the FCC please.

Would 2 GRMS (RT97L)repeaters work if they where about 4 miles apart and both set on the same frequency like 462.6000 tone 100.0.

We are looking to extend our coverage in the dense woods and maybe our range.

Thanks for your help.    

[WRKC935]

You are STILL not going to be able to have them on the same frequency if they are linked. 

In order to do that, they need to be run by simulcast controllers.  They need a GPS referenced timing standard and frequency standard.  There is a lot more to it than just linking them together.  And I promise you adding height to your tower will be cheaper.  Not to mention that they will need a stable connection between them.  THe Internet ain't gonna do it, you will need s Microwave shot between them so there isn't the changes in latency (link delay) that is present in Internet linking.

 

[nokones]

On 8/4/2025 at 2:21 PM, Mrsig said:

How would I link them?

You also wrote:  I don't need to be told about the law with the FCC please

 

It appears that you do need to be told about the law with the FCC or you just want to disregard any rule and be above them.

[Ian]

On 8/4/2025 at 6:06 PM, WSJI648 said:

And yet, there is a group near me that has almost 20 repeaters linked to the 'net...and even have a zello channel. I'm beginning to think that the FCC's doesn't really enforce anything.

 

There are two ways to link 20 repeaters to the 'net.  One of them is infuriating, one of them could be mistaken for Echolink or Allstar.  This second method is forensically identical to proper use of GMRS.  Unless you know the station's unoccupied for another reason, there would be no reason to suspect that somebody's taking a liberal interpretation of the rules, because this operation is only as harmful as permitted operation -- idk, like, there might be competition for a favorite channel or something?

[WRTC928]

On 8/4/2025 at 2:17 PM, Mrsig said:

I don't need to be told about the law with the FCC please.

Would 2 GRMS (RT97L)repeaters work if they where about 4 miles apart and both set on the same frequency like 462.6000 tone 100.0.

We are looking to extend our coverage in the dense woods and maybe our range.

Thanks for your help.    

As it turns out, yes, there is a way to do this. Retevis has a solution.

I'm truly surprised.

[WRTC928]

 Really, the only thing you'd have to be careful about is that one of the HTs would have "reversed" offset and you'd have to have a "repeater A" set and a "repeater B" set. Depending upon your use case, it might not matter that "A" radios can't talk to other "A" radios and "B" radios can't talk to other "B" radios via the repeater. 

[MSnow]

On 8/4/2025 at 2:17 PM, Mrsig said:

I don't need to be told about the law with the FCC please.

Would 2 GRMS (RT97L)repeaters work if they where about 4 miles apart and both set on the same frequency like 462.6000 tone 100.0.

We are looking to extend our coverage in the dense woods and maybe our range.

Thanks for your help.    

No need to over complicate things. Instead of spending an additional 600$ repeater, buy a better antenna and a taller mast to put antenna up higher and that repeater will go 10 miles. I had an RT97S 10W version on a Comet CAF712EFC around 40ft up or roughly 282ft above sea level and had no problems getting into it with an HT from 5-10miles away in the Piney woods of Texas with 80Ft tall pine trees everywhere.