Hi Byon,

Good idea on recording the audio.

I fed the radio in to my PC and recorded over an hour worth of
traffic. I then used Audacity to condense it down to about 3 minutes
worth of transmissions only a few seconds apart.

I get decode problems at roughly the following times in the audio file:

0:22, 1:01, 1:53, 2:48, 3:23.

I created a folder in the files section. z_decode_debug_files

This folder contains 2 files:
8-9b-06.txt which is the text capture from hyperterm from my PicPac
when running the audio file through it.
File #2 is "condensed aprs.mp3" which is roughly an hour of traffic
condensed to a few minutes.

The mp3 seemed to work fine although I have the raw audio which I
could grab snippets of the "broken" packets.

I sure appreciate any effort to understand what is going on and what
might be done to resolve it.

As an aside, do you have any web resources on programming the PicPac?
I took a quick look at the code. It's been over 5 years since I
coded anything in assembly and that was only a class in school. Any
resources for emulators or other useful tidbits are appreciated.

I'd hate to be asking for help that I wouldn't be willing to try and
understand myself.

Thanks,

Morgan




--- In picpac@yahoogroups.com, Byon Garrabrant <byon@...> wrote:
>
> You could also just capture audio for 20 minutes, and then feed it to
> the PICPAC and see if you have a bad packet. No splitter needed in
that
> case.
>
> Byon
>
> On 8/8/2006 7:55 AM, hallmorg wrote:
> > Thanks for a quick response.
> >
> > It varies in frequency, but it's happening every 10 minutes or less.
> > This morning it was happening every couple of minutes. It just seems
> > to be dependent on the amount of traffic. I'll try to buy/make a
> > splitter to record the audio and at least provide you with something
> > to debug with.
> >
> > Morgan
> >
> >
> >
> > --- In picpac@yahoogroups.com, Byon Garrabrant <byon@> wrote:
> >> I'm sure there is. How often does it happen. Perhaps you can try
> >> capturing audio with a sound card at the same time. When it
fails, you
> >> will be able to replay the failure, and send it to me to study.
> >>
> >> Byon
> >>
> >> On 8/7/2006 9:49 PM, hallmorg wrote:
> >>> Hi,
> >>>
> >>> I'm using a picpac to decode APRS packets using the Decode1 code
from
> >>> the Files section. It's doing a reasonably good job of grabbing
> >>> packets, but it occasionally runs away on a scrambled decode. From
> >>> the looks of the data, it is usually a weather packet.
Unfortunately,
> >>> I can't tell from whom.
> >>>
> >>> Is there something that can be done about this? The main problem
> >>> seems to be that once it gets a bad packet, it seems to get stuck in
> >>> an endless loop until I reset it.
> >>>
> >>> Any thoughts on this?
> >>>
> >>> What other information would help diagnose the problem?
> >>>
> >>> Thanks,
> >>>
> >>> Morgan
> >>> ke6bfh
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> Yahoo! Groups Links
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>