[aprssig] DSTAR Freq in Status text?
bruninga at usna.edu
Wed Mar 11 20:04:27 CDT 2009
> Is there anyway I can denote that it is
> DStar and not analog in my Status text?
> ie. FFF.FFF d* or something like that?
> I would like people to know I am not on
> analog at the time when I have d* on.
Unfortunately I have been unsuccessful in encouraging the DPRS conversion to implement the FFF.FFFMHz part of the APRS format. I do understand that D* and APRS are apples and oranges, but since the fact that the packet was originated on DSTAR is coded elsewhere in the packet, it could be easy to distinguish.
> Will other d-710s only pickup the freq if it
> has Mhz as the last 3 characters of the 10?
Yes, that is the "spec" it must be FFF.FF?MHz with the ? being a digit or a space...
My hope is that we have the best integration of D* and APRS as possible. I do not have any DSTAR equipment, so if you have any ideas how we can better cross communicate these systems, I am all ears. Especially in light of the Universal HAM Messaging Initiative: www.aprs.org/aprs-messaging.html that is attempting to make sure any ham system can text message any ham on any system from any system.
Bob Bruninga wrote:
>> I have my RC-d710 now talking through my Icom
>> 2820. I was wondering, is there anyway to
>> format the Status Text transmitted to include
>> frequency you are on like a d710?
> Sure, just put FFF.FFFMHz in the status text
> of the D710. That is the standard APRS format
> introduced in APRS1.2. It must be the first
> 10 bytes of free-text in the position comment
> or status fields.
> I had also proposed that the DPRS interface
> to the DSTAR system would include the frequency
> in those packets gated from DPRS into the APRS
> system, but I was unsuccessful in convincing
> the right people of the value of being
> compatible with the frequency field.
> If that was done, then not only could we see
> the locations of DSTAR users on APRS, but we
> could also see their operating frequency for
> a return call.
> Bob, Wb4APR
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