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[aprssig] aprssig Digest, Vol 72, Issue 6

G0JXN Jim g0jxn.jim at ntlworld.com
Mon Jun 7 12:58:39 UTC 2010

Hi Guys

Bob, with regard to the suggested use of a -15 SSID to indicate an HF 
station, unfortunately there are digis that crossband and this does not give 
any indication of the original frequency of operation. Unless of course it 
was a VHF station when one of the other SSIDs would give an indication. Yes 
I'm afraid there are digis crossbanding 1200bd to 300bd.

The Net14 project on 14.103MHz (KAM) uses a SSID of -14 to indicate 20m on 
the basis that there will be few 18-wheeled trucks on the frequency.

Could you not allocate the 10 to 15 SSIDs to HF to indicate the band and 
combine some of the other categories? After all there are icons that can be 
used to show sub groups.



> Date: Sun,  6 Jun 2010 10:53:05 -0400 (EDT)
> From: "Bob Bruninga " <bruninga at usna.edu>
> Subject: [aprssig] SSID Standardization
> To: aprssig at tapr.org
> Message-ID: <20100606105305.AET60183 at msan1.usna.edu>
> Content-Type: text/plain; charset=us-ascii
> SSID's (again):
> As more and more handheld and mobile apps flash up nearby APRS callsigns 
> on small displays, I think it is becomming more important to encourage 
> standard SSID's where possible for more instant situational awareness.  In 
> the past, I was hesitant to try to nail down all the SSID's too 
> precisely...  But now am willing to take another look at the list.  Here 
> is what I posted on another list:
> Here is my more thoughtful answer, and maybe some <== ideas for 
> improvement... and a HOPE that we can get everyone to converge on the 
> common list.
>>From aprs.org/aprs11.html (currently having ISP problems).
> -0  primary fixed and message capable station
> -1  digis and other fixed stations
> -2  digis and other fixed stations
> -3  digis and other fixed stations
> -4  digis and other fixed stations
> -5  TBD <= maybe Dstar/Echolink/phones/Ipads etc
> -6  Satellite, special events, tests
> -7  HT's, walkie talkies or any human portable
> -8  boats, sailboats OR second vehicle
> -9  primary Mobiles of all types
> -10 operations via the internet (Igates)
> -11 balloons and aircraft
> -12 DTMF, RFID, or other non-APRS sources
> -13 TBD <== Weather has been suggested)
> -14 Truckers and full time drivers
> -15 HF <== Lets expand to GENERIC ANYTHING ELSE
> There will ALWAYS BE EXCEPTIONS.  So please to not try to force these on 
> anyone, but if they otherwise open to using one of these categories, it 
> will help everyone in situational awareness when a callsign flashes up on 
> the display or is SPOKEN by your hands-off D700 with voice chip.
> Bob, WB4APR

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