Re: [AFMUG] FRS or GMRS for covering a mountain

Tue, 16 Apr 2019 07:56:56 -0700

If you use an FRS frequency, you will also be limited to FRS power except on a few selected frequencies. On our GMRS radios, they give you the option of high/low power if it is an either/or channel. So technically, you could use a GMRS radio on one of those channels without a license as long as you did so at low power. So there are FRS-only channels, GMRS-only channels, and either/or channels.

There are so many potholes in the rules, almost anything goes.


bp
<part15sbs{at}gmail{dot}com>
On 4/16/2019 7:37 AM, [email protected] wrote:
I wonder how many users are actually licensed.
 
If you use FRS frequencies only you don’t have to have a license do you?  Can they use a repeater?
 
Sent: Tuesday, April 16, 2019 7:46 AM
Subject: Re: [AFMUG] FRS or GMRS for covering a mountain
 

Yes you can put a GMRS repeater up and you can do it inexpensively because GMRS was not required to move to narrowband  channels, that makes a lot of old wideband commercial equipment available for use. The bigger problems however are the rules for GMRS use. The license holder is only allowed to use the frequencies for his/her and their immediate family. It can be used for business but each person/family has to have their own license. Different licensees are allowed to interact and use someone else’s repeater provide they have permission to access the repeater. A repeater owner is not obligated to grant others access to a repeater but they also are not granted exclusive access to a repeater frequency pair. So advise your client of  this. It is also worth noting that you should monitor the GMRS frequency pairs for other users before you set up a repeater. There is no requirement for coordination of GMRS repeaters, the blister pack GMRS radios are also allowed to use the repeater output frequencies as a simplex channel (but most do not have repeater pair capability), so monitoring before building might help you avoid picking a channel others are using on a regular basis. There is no official repository of repeater listings but this site is a good start https://mygmrs.com/

 

 

From: AF [mailto:[email protected]] On Behalf Of Chuck McCown
Sent: Friday, April 12, 2019 6:29 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] FRS or GMRS for covering a mountain

 

Didn’t realize you could put a repeater on gmrs.

Sent from my iPhone


On Apr 12, 2019, at 4:00 PM, Lewis Bergman <[email protected]> wrote:

That request is loaded with traps. Even expensive propagation software, or ones like the good free ones, can't gaurantee 100 percent accuracy. The typical setting is 90 percent confidence for the three major variables. I charge $500 for a propagation study. For obvious reasons, if you know me, I wouldn't recommend either of those two but Motorola. Kenwood is ok though. The receivers on Hytera aren't great. I guess it just depends on how important it is.

 

 

 

On Fri, Apr 12, 2019, 2:17 PM Matt Hoppes <[email protected]> wrote:

A GMRS repeater somewhere on a high point and Tytera or Kenwood portables.

> On Apr 12, 2019, at 15:12, Timothy Steele <[email protected]> wrote:
>
> We have a client that wants 100% of his mountain covered for communication
>
> Any recommendations for handheld radios?
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> AF mailing list
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> http://af.afmug.com/mailman/listinfo/af_af.afmug.com

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