[aprssig] KPC 3+ and Peet Bros 100 interfacing
Richard Sharp, KQ4KX
kq4kx at arrl.net
Sun Jun 4 09:48:55 EDT 2006
True however, I found that $ULTW provides MUCH better wind speed results.
The !! mode is simply a "snapshot" of the wind speed at that exact moment
the LT buffer is loaded. With $ULTW you get the average & peak wind speed
over the past five minutes. I originally used !! but after Hurricane
Charley was quite disappointed in the wind speed readings. I changed to
$ULTW and Hurricanes Francis & Jeanne resulted in much more realistic wind
speed readings.
I'd like to see something like smartbeaconing for weather stations where a
higher wind speed will result in more frequent weather beacons (within
reason of course).
Richard
KQ4KX
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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