Feature request

[detectingdragon77]

Hello, would you consider adding GMRS callsign support?

[PU5KOD]

Try cbaprs.de

On Wed, 9 Aug 2023, 17:55 detectingdragon77, @.***> wrote:

Hello, would it be possible to add GMRS callsign support?

— Reply to this email directly, view it on GitHub https://github.com/ge0rg/aprsdroid/issues/348, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAXY5RBVHV7KWFJ44CTH2YTXUP2KNANCNFSM6AAAAAA3KRRQ5E . You are receiving this because you are subscribed to this thread.Message ID: @.***>

[detectingdragon77]

Try cbaprs.de … On Wed, 9 Aug 2023, 17:55 detectingdragon77, @.> wrote: Hello, would it be possible to add GMRS callsign support? — Reply to this email directly, view it on GitHub <#348>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAXY5RBVHV7KWFJ44CTH2YTXUP2KNANCNFSM6AAAAAA3KRRQ5E . You are receiving this because you are subscribed to this thread.Message ID: @.>

This looks pretty cool, however I am not looking to broadcast aprs onto the Internet, I am wanting to broadcast aprs over GMRS.

[penguin359]

A quick look into GMRS callsigns looks like they are 7 characters long. The AX.25 packet format which is the basis for APRS is only specified with room for 6 characters plus an SSID that uses a different format for storage. To support 7-character callsigns would require a fundamental change in the packet format and would dig deep into the codebase used for APRSdroid so I don't think it's likely unless you want to try tackling the code.

On top of that, I know GMRS is a little more restrictive on what options are available. I'm not completely clear what the legal implications are. I do know that a Baofeng radio is not approved for Part 95 GMRS operations, but a radio with a fixed antenna and Part 95 certified radio might be legal on certain channels.

[detectingdragon77]

A quick look into GMRS callsigns looks like they are 7 characters long. The AX.25 packet format which is the basis for APRS is only specified with room for 6 characters plus an SSID that uses a different format for storage. To support 7-character callsigns would require a fundamental change in the packet format and would dig deep into the codebase used for APRSdroid so I don't think it's likely unless you want to try tackling the code.

On top of that, I know GMRS is a little more restrictive on what options are available. I'm not completely clear what the legal implications are. I do know that a Baofeng radio is not approved for Part 95 GMRS operations, but a radio with a fixed antenna and Part 95 certified radio might be legal on certain channels.

I am aware of Part 95. Thanks for the response. I am not very technically knowledgeable in AX.25 packets, so I will probably just close this issue.