[aprssig] KPC 3+ and Pet Bros 100 interfacing

[Stan - N0YXV]

FYI: Current version of firmware for the KPC3+ has the clear option. If you
have a slightly older version (I think I have 8.2) it does not have the
clear option. Makes it look really strange when the GPS goes on the fritz,
because you keep sending BLT with the last position the GPS sent before it
gave up the ghost.

> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org
> [mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Andy AB9FX
> Sent: Sunday, June 04, 2006 6:36 PM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] KPC 3+ and Peet Bros 100 interfacing
>
>
> Steve,
> in the KPC-3+ there is option to clear data after sending. So,
> good solution
> for Packet Mode with 5 minutes intervals is to set something like:
> BLT 1 EVERY 00:00:30 CLEAR
> Then wx data is sent by TNC not later than 30 seconds after
> receiving from
> Ultimeter. Also buffer is cleared if there is no data from
> weather station
> and no any packet with old data is on the air.
> 73!
> Andy
>
>
> ----- Original Message -----
> From: "Steve Dimse" <steve at dimse.com>
> To: "TAPR APRS Mailing List" <aprssig at lists.tapr.org>
> Sent: Sunday, June 04, 2006 15:26
> Subject: Re: [aprssig] KPC 3+ and Peet Bros 100 interfacing
>
>
> >
> > On Jun 4, 2006, at 9:02 AM, Chuck Kimball wrote:
> >
> >> It's set for packet mode (1 packet every 5 minutes with the $ULTW
> >> string, and it runs 2400 baud which I've set the KPC3+ to).
> >
> > I'd highly recommend using !! instead of $ULTW. The latter, as
> you  note,
> > sends one packet every 5 minutes. There is no synchronization  between
> > this and the transmission time. On average the data you send
> will be 2.5
> > minutes old, with a worst-case of five minutes.
> >
> > Steve K4HG
> >
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