Date: Wed, 18 Aug 93 04:30:06 PDT
From: Advanced Amateur Radio Networking Group <tcp-group@ucsd.edu>
Errors-To: TCP-Group-Errors@UCSD.Edu
Reply-To: TCP-Group@UCSD.Edu
Precedence: Bulk
Subject: TCP-Group Digest V93 #212
To: tcp-group-digest
TCP-Group Digest Wed, 18 Aug 93 Volume 93 : Issue 212
Today's Topics:
56kb links (2 msgs)
JNOS under Linux
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Date: 17 Aug 1993 10:56:11 -0500 (EST)
From: Mike Murphree <mike.murphree@stpete.honeywell.com>
Subject: 56kb links
To: TCP-Group@UCSD.Edu
Jack,
You must have missed Huntsville... ;^) Lots of good information was
presented there, the best source(s) for info would be the G.R.A.P.E.S.
or ALANET groups, but I will try based on what I heard and as memory
permits...
1. Only 56k modem mentioned was the WA4DSY.
2. Output power... Never heard it mentioned.
3. They mentioned an availability problem on transverters and were looking
for another source.
4. Equipment, not sure, but a service monitor would probably be handy, a
scope and deviation meter might suffice.
5. Ottawa PI card (about $120) or specially-modified "56K" TNC. PI card
needed to take advantage of full-speed operation.
6. The figure $1900 was tossed around, but that included the computer,
386 or better preferred.
7. A G3RUH modem installed in 10 MHz TNC should be around $250, 19.2k
operation on 440 should be possible.
Many THANKS to all the presenters at the show, they made the 1600 mile
trip from FL worthwhile! (Don't ask my wife for her opinion!)
And don't forget the Networking Conference in Tampa on September 11!
******************************************************
* 73 de Mike, N4CNW@W4DPH.#TPA.FL.USA.NA *
* Amprnet: n4cnw@n4cnw.ampr.org [44.98.0.151] *
* Internet: mike.murphree@stpete.honeywell.com *
* -------------------------------------------------- *
* "I'd rather have a bottle in front of me, *
* than a frontal labotomy!" *
******************************************************
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Date: Tue, 17 Aug 93 14:55:14 PDT
From: rosenaue@mprgate.mpr.ca (Dennis Rosenauer)
Subject: 56kb links
To: tcp-group@ucsd.edu
My comments based on personal experience withe the GRAPES 56K modem.
(I personally think it is not a bad modem)
Mike Murphree said:
>
> 1. Only 56k modem mentioned was the WA4DSY.
>
> 2. Output power... Never heard it mentioned.
-Output power at 28 MHz is about 0 dBm (1 milliwatt into 50 ohms)
>
> 3. They mentioned an availability problem on transverters and were looking
> for another source.
-I used some Hamtronics 220 and 440 converters, they need a little help
to get working right but I did get on the air. The 440 upconverter is
far better than the 220 upconverter. A better quality up/down converter
would make life somewhat easier.
>
> 4. Equipment, not sure, but a service monitor would probably be handy, a
> scope and deviation meter might suffice.
-The modem can be tuned up with a 30 - 50 MHz scope and a DVM or a lower
bandwidth scope if you have an RF probe to measure some local oscillator
levels. The Hamtronics upconverter really needs to be on a spectrum
analyzer to be sure you are not doing anything nasty on the air.
>
> 5. Ottawa PI card (about $120) or specially-modified "56K" TNC. PI card
> needed to take advantage of full-speed operation.
-The PI card works. It is the only thing I have any experience with.
>
> 6. The figure $1900 was tossed around, but that included the computer,
> 386 or better preferred.
-I think you can get away with less than a 386 for the computer. I used
a 4.77 MHz XT clone for a while and it worked pretty well. A fast
computer is nice if you want to compile NOS from sources tho'.
>
> 7. A G3RUH modem installed in 10 MHz TNC should be around $250, 19.2k
> operation on 440 should be possible.
>
-I no experience with this unit.
--
Dennis Rosenauer VE7BPE rosenaue@mprgate.mpr.ca
MPR Teltech Ltd.
Radio & Satellite Network Development "For every vision there is an
Burnaby, B. C. equal and opposite revision"
------------------------------
Date: Tue, 17 Aug 1993 22:32:17 -0400
From: "Brandon S. Allbery" <bsa@kf8nh.wariat.org>
Subject: JNOS under Linux
To: csklf@knuth.mtsu.edu (Kelly L. Fulks)
In your message of Tue, 17 Aug 1993 21:15:57 EDT, you write:
+---------------
| Brandon here it is as you requested (no good compile stuff)
| I have SLS 1.03 stock with gcc 2.4.5 and libc.4.4.1.
+---------------
I just posted a note on this to nos-bbs. Remove hardware.h before compiling
the first time --- as distributed it comes from pc.h in the DOS JNOS
distribution, and on my system the timestamps were correct for it to be
replaced with linux.h but it doesn't appear to be reliable. If you remove
hardware.h the makefile will automatically copy linux.h over and all will be
well. (You should undo the cursortype patches you made, linux.h contains the
necessary #defines.)
++Brandon
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End of TCP-Group Digest V93 #212
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