[aprssig] D710 GPS Port
dave at emv.co.uk
Fri Aug 17 07:26:20 CDT 2007
Took a quick look at that spec.
Callsign fields are 8 bytes each...
G0WBX [null][null][null] = 8 bytes...
G0WBX-99 Also 8 bytes? If the - is not allowed, then whatever?
As above, I only took a quick look at the spec, and I can see some
howlers in the scrambler too, initialise to all zeroes? Hmmmmm...
It sort of looks like a commercial thing, that was sort of decided to be
used as a basis for a ham product too, probably to make up the
production run numbers to keep the cost down to the original customer?
The PDF loaded OK here, but the graphical diagram on or near the end of
the doc is a bit of a mess.
Have to agree though, it's rather too open to interpretation to be
usefull to anyone who doesn't have a working system to examine first.
> -----Original Message-----
> From: Scott Miller [mailto:scott at opentrac.org]
> Sent: Tuesday, August 14, 2007 6:51 PM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] D710 GPS Port
> Come on Jason, what part of "This is available not only for
> the increase and decrease of a figure of callsign but also
> for ID, which is not used as callsign rather than numeric"
> don't you understand? =]
> Honestly, I have no idea if that relates to SSIDs or not.
> They do mention in the spec that if a station has multiple
> radios, they are distinguished by the last character, A
> through F. So while people are complaining that 15 SSIDs
> aren't enough, they went and lowered it to 6.
> And disregarded 30 years of tradition by throwing out the
> -ssid notation.
> Jason Winningham wrote:
> > On Aug 14, 2007, at 11:13 AM, William McKeehan wrote:
> >> Has anyone looked at D-Star as a potential replacement for APRS?
> >> It seems to have a lot of the basic functionality.
> > I haven't looked at it, but from what I've heard they
> apparently made
> > some fairly stupid (IMO) design decisions. IIRC, a
> callsign can only
> > be on the network once (no SSID), if a repeater is to be added the
> > whole network has to be rebooted or something equally drastic. Oh,
> > and the radios are obscenely expensive.
> > No thanks.
> > -Jason
> > kg4wsv
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