[aprssig] APRS Message Callsign SPEC- Ambiguity

Heikki Hannikainen hessu at hes.iki.fi
Tue Apr 26 17:02:39 EDT 2016

On Mon, 25 Apr 2016, Lynn W. Deffenbaugh (Mr) via aprssig wrote:

> Yaesu APRS radios will not ack a message if it comes from an -SSID that 
> is not -0 (suppressed) through -15 even though the APRS protocol for 
> messages is always in the payload portion for 3rd party packets gated 
> from the APRS-IS to RF with the ack coming back.

Also, Yaesu APRS radios, at least the slightly older models, do not allow 
sending messages to non-numeric SSIDs. They enforce the AX.25 callsign 
requirements for the APRS message destination field, so QIKCOMsay will 
totally not work on them. The user interface on the yaesu only had an 
option to select an SSID number.

I complained about this to a Yaesu representative in Friedrichshafen a 
couple years back, but he didn't seem to have a contact channel back to 
the development. I wonder if it's fixed in the latest models.

   - Hessu

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