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PA2AGA > HDDIG 07.06.00 01:09l 216 Lines 7273 Bytes #-9453 (0) @ EU
BID : HD_2000_157B
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Subj: HamDigitalDigest 2000/157B
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Sent: 000606/1847Z @:PI8HGL.#ZH1.NLD.EU #:48390 [Den Haag] FBB $:HD_2000_157B
From: PA2AGA@PI8HGL.#ZH1.NLD.EU
To : HDDIG@EU
Date: Tue, 06 Jun 00 19:18:35 MET
Message-Id: <hd_2000_157B>
From: pa2aga@pe1mvx.ampr.org
To: hd_broadcast@pa2aga.ampr.org
X-BBS-Msg-Type: B
> > contest sponsored by me and the 6Plus Activity Club. If you have
> > suggestions for freqs in the 6meter and above range please let me know.
> > I will collect the data and add it to a website that I am currently
> > developing.
> >
> > Thanks !
>
> ==========
> I would be interested in a 6M PSK31 calling frequency list -- could u
> forward the results of your query. Want to add it to my Calling Frequency
> list at URL:
> http://ac6v.com/pagecall.html
> Thanks
>
> --
> 73 from Rod in Oceanside, Ca
> ========================================================
> AC6V INDEX TO DX AND HAM RADIO
> FEATURING 100+ PAGES, 700 INDEXED TOPICS, AND 3000 LINKS
> Over 700,000 Visits On The Counter
> http://www.ac6v.com - General Ham Pages
> http://www.ac6v.com/pagedx.html - DX Reference Pages
--
6Plus Activity Club
Dedicated to increasing 6 meter and above PSK Activity
Email: simplyinfo@sc.rr.com
http:// <coming soon!!!>
Contact me for info on joining the
FIRST PSK Club for 6 Meters and Above !!!
------------------------------
Date: Sun, 4 Jun 2000 18:39:09 GMT
From: nomail@rob.knoware.nl (Rob Janssen)
Subject: APRS for Mentor Engineering MDC?
At a local radio fleamarket I bought a surplus "Mentor Engineering Mobile
Data Computer" for the equiv of about 10 dollar. It is a nice box,
containing a 480x64 graphic LCD display, keyboard, processor, Trimble
Lassen SK-8 GPS receiver module, smartcard reader, MODEM, etc etc.
Its original use is for TAXI companies and the like.
It looks like it would be the ideal mobile APRS terminal, when the firmware
could be adapted for APRS over AX.25. The company's website claims that it
supports any mobile data communication protocol, and lists some 10
different standards, but of course that does not include APRS.
(this is what we get for inventing our own protocols all the time...)
Does anyone happen to have further information on these units, i.e. if
there are any toolkits in circulation to develop software for it?
In case this is not practical, I will probably take it apart for the
modules. I have searched the web, and found that these days there are
several single-board mobile APRS solutions that would work with the GPS
receiver, but they are all PIC 16F84 based.
I do have an old TNC2C (TNC2 clone with all CMOS parts and TCM3105 modem)
that would be usable, as the GPS receiver would fit in the box. But I have
not seen any dedicated APRS firmware for the TNC2 either. Ok, there is the
TAPR 1.1.9 firmware that would be able to send NMEA beacons, but it would
be more useful to have firmware like it has been developed for the PIC.
(e.g. sending beacons at intervals depending on the vehicle speed)
Does anyone know if such firmware is available somewhere? I'm looking for
something that would be programmed using a terminal, then a GPS receiver
would be connected to the RS232 port and the unit would be used as a
blackbox that just sends the positioning info.
Rob
--
+----------------------------------+--------------------------------------+
| Rob Janssen pe1chl@amsat.org | WWW: http://www.knoware.nl/users/rob |
| AMPRnet: rob@pe1chl.ampr.org | AX.25 BBS: PE1CHL@PI8WNO.#UTR.NLD.EU |
+----------------------------------+--------------------------------------+
------------------------------
Date: 04 Jun 2000 20:52:42 GMT
From: johnl84238@aol.com (JOHNL84238)
Subject: Callsign hats
What a bunch of MORONS....I'd rather deal with the Nerd wearing the hat any
day.
------------------------------
Date: Sun, 4 Jun 2000 15:38:53 +0100
From: Bob Sayers <bob.sayers@zetnet.co.uk>
Subject: Callsign hats
The message <39394014.D367A01A@rwi.com>
from jui@rwi.com contains these words:
> What kind of nerd would where his callsign on his hat.
Probably the sort that would spell "wear" as "where" ...
------------------------------
Date: Mon, 05 Jun 2000 13:51:11 GMT
From: w9vhe@earthlink.net (Outrider141)
Subject: Copy of article in QST JAN 94 - SSTV
It is similar to the Hamcomm, but only uses 2 diodes, uses different
pins for the data stream also. Built one, them modified it to be a
hamcomm type by adding the diodes and moving the wires.
On Fri, 2 Jun 2000 23:19:10 -0400, "Rob" <Pse@NoEmail.Com> wrote:
>In the January 1994 issue of QST, there is an article describing an
>inexpensive SSTV interface. I have lost this issue of QST.
>
>Does anyone have a copy of this article?? Is it simply another HAMCOMM
>style interface??
>
>73's
>Rob
>amtor <at> hotmail {dot} com
>
>
------------------------------
Date: Mon, 5 Jun 2000 14:58:30 -0400
From: "Rob" <Pse@NoEmail.Com>
Subject: Copy of article in QST JAN 94 - SSTV
It sounds like I would be better off building one of the various HAMCOMM
interfaces for SSTV and RTTY.
73's
Rob
"Outrider141" <w9vhe@earthlink.net> wrote in message
news:393bb02a.323392596@news.earthlink.net...
> It is similar to the Hamcomm, but only uses 2 diodes, uses different
> pins for the data stream also. Built one, them modified it to be a
> hamcomm type by adding the diodes and moving the wires.
>
> On Fri, 2 Jun 2000 23:19:10 -0400, "Rob" <Pse@NoEmail.Com> wrote:
>
> >In the January 1994 issue of QST, there is an article describing an
> >inexpensive SSTV interface. I have lost this issue of QST.
> >
> >Does anyone have a copy of this article?? Is it simply another HAMCOMM
> >style interface??
> >
> >73's
> >Rob
> >amtor <at> hotmail {dot} com
> >
> >
>
------------------------------
Date: Mon, 5 Jun 2000 13:12:20 -0400
From: "Bob Lewis" <aa4pb@erols.com>
Subject: DSP settings for PSK31
> I'd like to see digital filters added to the software....
> 73
> Den Spiess W2DEN -.-
Doesn't the PSK31 DSP software already have digital filters built in
to it? Most of the problem I see is within the receiver and that
requires filters inside the AGC loop to correct. I'm not sure that an
additional audio filter ahead of the sound card would help with QRM.
Perhaps some of the software developers could explain what type of
filtering is contained in the software and whether additional
filtering (outside of the receiver) would provide much benefit.
------------------------------
Date: Mon, 05 Jun 2000 13:19:43 GMT
From: Den <dennis.spiess@reckitt.com>
Subject: DSP settings for PSK31
In article <20000601143657.18866.00001121@ng-cj1.aol.com>,
julswn@aol.com (JulSwn) wrote:
> All looks good to me. You do not really need a dsp though. With
winpsk or
> digiapna you need the wide bandwidth and so there is no need for
anything else.
> It is the goood and bad of those programs. You have the convienience
of eas of
> use but if there is a LOT of qrm, you do not hvae the narrow filters
to help.
> In most case and most radios, they don;t't help in any cae.
> The best thign to do in that case is to tune in the staion and tiurn
off the
> AFC to prvent catpure effect.
>
I wish you luck in copying PSK in crowded conditiond without some sort
of narrowing of the bandpass. The BIG guns are easy to copy. The
problems emerge whe you are trying to copy a weak signal with a BIG
To be continued in digest: hd_2000_157C
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