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[aprssig] Hamfest Objects with Kenwood Radios

Steve Noskowicz noskosteve at yahoo.com
Thu Jun 17 19:51:14 UTC 2010



OK.  Since I only have the D700 & D7 and don't do TNC/PC-client APRS, I only knew that there is an Object Packet and didn't know any more about it's capability.

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

--- Mr. Lynn W. Deffenbaugh wrote:

> Not necessarily injected to
> APRS-IS.  APRS Object definitions are contained in the
> payload of an APRS packet and are not subject to the AX.25
> restrictions.  Check out Bob's recommendations on how
> to configure a KPC-3+ and you'll see what I mean.
> 
> Lynn (D) - KJ4ERJ
> 
> Steve Noskowicz wrote:
> > 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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