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ZL3AI > APRDIG 19.01.04 18:14l 87 Lines 2676 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Jan 16, 2/2
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Sent: 040119/1553Z @:ZL3VML.#80.NZL.OC #:17145 [Chch-NZ] FBB7.00i $:2685-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: Digital HF QRP?
From: "Georgette Sampson" <georgette.sampson@cox.net>
Date: Fri, 16 Jan 2004 18:27:13 -0600
X-Message-Number: 7
If you can even find one...
----- Original Message -----
>And it's not going to be cheap with a complete Motorola DSP eval
>board inside...
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Subject: Re: Digital HF QRP?
From: Bill Vodall - WA7NWP <wa7nwp@jnos.org>
Date: Fri, 16 Jan 2004 18:13:03 -0800 (PST)
X-Message-Number: 8
On Fri, 16 Jan 2004, Scott Miller wrote:
>What currently exists for portable digital HF? Kind of looks like I'd have
I'm fairly excited about the potenial of a combined FT-817 and small
PC such as a Libretto. Should do everything from Pactor (winlink)
and QPSK15 on HF to 9k6 data at UHF.
A couple questions remain:
First, a few queries to both the QRP and FT-817 lists did not yield high
confidence that the FT-817 is really good for 9k6 packet data. It
works for the low throughput operation but nobody was able to confirm
it works with a low BER for large packets.
Second, Pactor -- as the minimal requirement for Winlink -- is not common
with the soundcard modem implementations.
>to haul a laptop and QRP rig along and maybe run PSK31 or something similar,
PSK31 is good for keyboarding. It's far too slow for real data
operation. Clover, Pactor 2 and 3, and QPSK15 on HF put the 1200
baud AFSK we use in VHF to shame...
>What I'd LIKE to see is an automated store-and-forward messaging system...
>something that'd let me have a simple terminal/QRP xcvr combo that I could
>carry while backpacking, throw a dipole up in a tree, and get email with.
>And when sending messages, it'd sit there all night waiting for the right
>propagation and retrying if necessary.
As mentioned already, http:/www.winlink.org does just that. The
challenge is doing it backpacking instead of with the resources of a RF
or boat.
Bill - WA7NWP
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Subject: Re: NMEA questions
From: Earl Needham <needhame1@yucca.net>
Date: Fri, 16 Jan 2004 19:38:40 -0700
X-Message-Number: 9
At 12:32 PM 1/12/2004, Scott Miller wrote:
>Got some quick questions on NMEA 0183...
You might want to take a look at:
http://vancouver-webpages.com/peter/nmeafaq.txt
7 3
Earl
p.s. I might suggest Garmin's proprietary $GPRMZ sentence as one to
parse. It's short and gives elevation in feet.
Earl Needham, KD5XB, Clovis, New Mexico DM84jk
KD5XB-2>APW251,PCSAT-1%:=3425.83N/10313.55W-PHG7150/WinAPRS 2.5.1
-EARL_CLOVIS -251-<630>
SETI@Home: 11292WU/7.33yrs
---
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