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[aprssig] Hamfest Objects with Kenwood Radios

Steve Noskowicz noskosteve at yahoo.com
Thu Jun 17 19:19:51 UTC 2010



Ahhh, OK.  So anything seen above that limit has been injected directly into the APRS-IS and not on RF, right?

--
 73, Steve, K9DCI   USN (Vet) MOT (Ret) Ham (Yet)

---  Geoff  wrote:
> It's not a limitation of the radios,
>  but a limitation of the AX25 protocol
> used to carry APRS.
> The Callsign can only be 6 alpha chars with a numeric SSID
> between 0 and 15
> (-0 is the same as no SSID)
> 
> Geoff  VK2XJG
> 
> 
> -----Original Message-----
> From: aprssig-bounces at tapr.org
> [mailto:aprssig-bounces at tapr.org]
> On Behalf
> Of Steve Noskowicz
> Sent: Thursday, 17 June 2010 2:41 PM
> To: TAPR APRS Mailing List
> Subject: [aprssig] Hamfest Objects with Kenwood Radios
> 
> --- Bob Bruninga wrote:
> > I prepared a web page to tell eveyrone how to make
> such an
> > object and how to use APRS in support of the Hamfest
> and
> > Talkin:
> >       
>    www.aprs.org/hamfest.html
> 
> 
> Bob,
> 
> For the D700, D7 and probably D710 the limit on SSID of
> <=15 requires a
> modification.  The date digits can be split between
> the call and SSID.  
> 
> HFEST2-3  would be used for a Fest on the 23rd. 
> I was unable to figure out
> a way to add the sequence byte, the "x" in your
> description.
> 
> On my D7 I tried, but it wouldn't accept an "x" byte in
> other (quasi-suffix)
> locations such as: HFEST2-3A or  HFESTA2-3.  As
> long as all other Fest
> objects for that day have the format "HFEST-ddx", you're
> ok.  However, if
> someone else has one on the same date and uses the D700 or
> D7, they will
> over-write one another on the APRS-IS.  Locally, of
> course, there ok.  
> It could be added as a pre-fix, but that destroys the
> TOCALL simplicity and
> precludes searching for HFEST* on the net.
> 
> It's a shame restrictions were placed on the TOCALL on
> these radions.
> 
> --
>  73, Steve, K9DCI   USN (Vet) MOT (Ret) Ham
> (Yet)
> 
> 
> 
> 
> 
>       
> 
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