Search found 191 matches

by DU2XXR
Tue Sep 05, 2023 2:50 pm
Forum: General discussions
Topic: APRS 'Voice Alert'
Replies: 8
Views: 2095

Re: APRS 'Voice Alert'

"APRS Voice Alert" basically deals with the "APRS mute" aspect of the mode. Many people who use APRS set our radios to audibly mute packets being sent and received (because it might be too noisy hearing packets all day). APRS pacekts are sent and received without any tone. But some radios support a ...
by DU2XXR
Tue Aug 29, 2023 7:10 am
Forum: Off topic
Topic: APRSPH and #APRSThursday nets
Replies: 3
Views: 2387

Re: APRSPH and #APRSThursday nets

I recall there was a previous discussion about AX.25 receive, and the potential hardware limitations. Being able to transmit is a good start, though. I recall some of the other radios like the Anytone portables started with being able to transmit FM APRS and then moving on to being able to receive (...
by DU2XXR
Tue Aug 29, 2023 7:03 am
Forum: General discussions
Topic: FM APRS
Replies: 73
Views: 10442

Re: FM APRS

Given the 6-digit max convention, perhaps APOG77 might be better. Or APGD77? Then yes, it will be good as it frees up additional bytes for other config items. I think it's more important to let the user define the digipath (or maybe choose between several options). I'm changing the firmware to use A...
by DU2XXR
Mon Aug 28, 2023 11:40 pm
Forum: General discussions
Topic: FM APRS
Replies: 73
Views: 10442

Re: FM APRS

Most applications let the user define the digipath, but not necessarily the "destination" (again, which is only the identifier for the device, application, or software that sends APRS packets over-the-air or to the APRS network). When working satellites, users would have to remove the terrestrial di...
by DU2XXR
Mon Aug 28, 2023 7:41 pm
Forum: General discussions
Topic: FM APRS
Replies: 73
Views: 10442

Re: FM APRS

Since this is still an experimental application, I would recommend something that starts with APZ, so that openGD77 would be compliant with APRS spec. Once the implementation is more stable, then the devs can start requesting a more definite identifier to be included in the distributed list. Also, i...
by DU2XXR
Mon Aug 28, 2023 6:27 am
Forum: Off topic
Topic: APRSPH and #APRSThursday nets
Replies: 3
Views: 2387

APRSPH and #APRSThursday nets

I know there has been some discussion about FM APRS in light of the firmware having experimental support. I'm aware it does not support messaging (yet?) but perhaps some of us here are also into APRS. For those with APRS-enabled radios or desktop/smartphone applications, I am inviting you to join tw...
by DU2XXR
Mon Aug 28, 2023 4:40 am
Forum: General discussions
Topic: FM APRS
Replies: 73
Views: 10442

Re: FM APRS

Thanks for the username change. To clarify, this is an example of a message packet (as I sometimes manually hand-write it using KISS terminal) DU2XXR-7>APZIOR:WIDE1-1,WIDE2-1:APRSPH :CQ #APRSThursday greetings to fellow packet radio enthusiasts! DU2XXR-7 is the transmitting/origin station, which is ...
by DU2XXR
Mon Aug 28, 2023 4:25 am
Forum: General discussions
Topic: FM APRS
Replies: 73
Views: 10442

Re: FM APRS

Hi Roger. No, it's not about routing. It's about identification. The term "destination" may actually be misleading, but it's actually more of an identifier rather than routing. BTW, is it possible to change my username to DU2XXR? That's the callsign I am currently using. How would using a destinatio...
by DU2XXR
Mon Aug 28, 2023 4:21 am
Forum: General discussions
Topic: FM APRS
Replies: 73
Views: 10442

Re: FM APRS

Hi Roger. The APRS destination is described as such: "This is a machine-readable index of APRS device and software identification strings." Basically it helps identify what device or application generated the packet. On my own APRSPH bot (https://aprsph.net) I simply used APZIOR (since the script is...
by DU2XXR
Tue Nov 22, 2022 4:48 am
Forum: General discussions
Topic: FM APRS function
Replies: 16
Views: 6887

Re: FM APRS function

I guess the OP wants something like on the Anytone AT-D878UV, which can transmit APRS packets, or the AT-D878UV-II, which can transmit and receive (decode) APRS packets. I own the former, but I have no idea how the circuitry got this to work in the radio. Interestingly I see FM APRS is one of the k...