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1994-11-13
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Date: Wed, 18 May 94 04:30:18 PDT
From: Ham-Digital Mailing List and Newsgroup <ham-digital@ucsd.edu>
Errors-To: Ham-Digital-Errors@UCSD.Edu
Reply-To: Ham-Digital@UCSD.Edu
Precedence: Bulk
Subject: Ham-Digital Digest V94 #153
To: Ham-Digital
Ham-Digital Digest Wed, 18 May 94 Volume 94 : Issue 153
Today's Topics:
??Type of cable from Mac to TNC?? (2 msgs)
AA4RE BBS Software?
Mac-Ham BBS
PacComm Micropower-2 -> Realistic HTX-202?
Packet<->Internet gateways
PacTOR FEC timing/format issue
Ramsey FX440 and PacComm NB96 at 9600?
TCP/IP freqs in Bay Area
Send Replies or notes for publication to: <Ham-Digital@UCSD.Edu>
Send subscription requests to: <Ham-Digital-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Digital Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-digital".
We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: Tue, 17 May 1994 17:17:46 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!news.ucdavis.edu!natasha.ucdavis.edu!szhall@network.ucsd.edu
Subject: ??Type of cable from Mac to TNC??
To: ham-digital@ucsd.edu
I would like to use my Mac Classic for VHF packet and I have a
question regarding the cable from the Mac to the TNC.."Can I use the
same type of cable I use for the telephone modem or do I need a special
type just for this purpose'?" I am using a KPC-3 with a Mac with
Hostmaster Sofeware...Thanks for taking time to read this..Jeff
------------------------------
Date: 17 May 94 18:50:28 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!vixen.cso.uiuc.edu!newsrelay.iastate.edu!news.iastate.edu!jvp@network.ucsd.edu
Subject: ??Type of cable from Mac to TNC??
To: ham-digital@ucsd.edu
In <CpyIpM.A6G@ucdavis.edu> szhall@natasha.ucdavis.edu () writes:
> I would like to use my Mac Classic for VHF packet and I have a
>question regarding the cable from the Mac to the TNC.."Can I use the
>same type of cable I use for the telephone modem or do I need a special
>type just for this purpose'?" I am using a KPC-3 with a Mac with
>Hostmaster Sofeware...Thanks for taking time to read this..Jeff
Your modem cable should work fine. The only issue would be whether
Hostmaster needs hardware handshaking or not. I think it does. If so
you would be best to use a "High speed" modem cable, which just means
it has the hardware handshaking lines in it.
+---------------------------------------------------------------+
| Jim Van Peursem - Ph.D. Candidate (Ham Radio -> KE0PH) |
| Department of Electrical Engineering and Computer Engineering |
| Iowa State University - Ames, IA 50011 : (515) 294-8339 |
| internet - jvp@iastate.edu -or- jvp@cpre1.ee.iastate.edu |
+---------------------------------------------------------------+
------------------------------
Date: Tue, 17 May 1994 11:31:07 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!convex!news.duke.edu!godot.cc.duq.edu!toads.pgh.pa.us!newsfeed.pitt.edu!gvls1!ean@network.ucsd.edu
Subject: AA4RE BBS Software?
To: ham-digital@ucsd.edu
What is the latest version of AA4RE BBS software and
where can it be obtained? (FTP or other)
--
Ed Naratil (All standard disclaimers apply)
ean@VFL.Paramax.COM Amateur Packet: w3bnr@wb3joe.#epa.PA.USA
------------------------------
Date: Tue, 17 May 1994 12:52:38 +0500
From: sun.cais.com!peterd.cais.com!user@uunet.uu.net
Subject: Mac-Ham BBS
To: ham-digital@ucsd.edu
Gallery's BBS is now available to the general public.Specializing in
Amateur Radio shareware for the Macintosh computer.The board is open
24hours a day,7 days a week at 202-298-6009.Supports up to 9600 bd
connections.Give it a call today!
e-mail queries to:paulot@cais.com
or
N3MGA@WA3TAI.MD.NOAM
73'S
------------------------------
Date: 17 May 1994 17:08:08 GMT
From: ihnp4.ucsd.edu!usc!math.ohio-state.edu!hobbes.physics.uiowa.edu!news.uiowa.edu!icaen!drenze@network.ucsd.edu
Subject: PacComm Micropower-2 -> Realistic HTX-202?
To: ham-digital@ucsd.edu
Does anybody happen to know the cable configuration to hook the
PacComm Micropower-2 (it's basically the Tiny-2 TNC) to the
Realistic HTX-202? I picked one up cheap, but it was without
any docs (the TNC). I've ordered them, but would sorta like to
get on the air ASAP--dunno when everything'll be coming in. Also,
if you have an online version of the command set, I'd be obliged.
------------------------------
Date: 17 May 1994 14:22:17 +0100
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!pipex!doc.ic.ac.uk!bright.ecs.soton.ac.uk!titian.ecs.soton.ac.uk!not-for-mail@network.ucsd.edu
Subject: Packet<->Internet gateways
To: ham-digital@ucsd.edu
Hello, I was wondering if anyone has tried (or preferably has a list)
of the packet to Internet gateways that seem to exist.
On the Internet, telnetting to
af2j.ece.psu.edu
ke9yq.imsa.edu
hpcsos.col.hp.com
and several others, some go up and down!
will give a login. The ke9yq one allows anonymous login and appears to
let to AX.25 and NET/ROM out on amateur packet! (You need to register
to do this.)
Access to far off BBS's and chat nodes would become far easier if more
gates like these were known of. The current method for me is four or five
node hops across the UK to the LONNY wormhole, so I can then connect out
to the USA, but this is so SLLLOOOWWW and unrealiable. It is the same sor
sort of route for the International Chat node, and I would like to be able
to chat to amateurs wordwide without all of that hassle!
Does anyone have any more info?
Thanks, de Lee Volante, G0MTN
Packet: G0MTN@GB7XJZ.#48.GBR.EU Email: ljv@soton.ac.uk
PS This is my first ever post - so apologies if I've broken an
unwritten UseNet rule :-)
------------------------------
Date: Tue, 17 May 1994 16:15:40 GMT
From: ihnp4.ucsd.edu!swrinde!gatech!howland.reston.ans.net!vixen.cso.uiuc.edu!uchinews!kimbark!khopper@network.ucsd.edu
Subject: PacTOR FEC timing/format issue
To: ham-digital@ucsd.edu
I recently completed testing a TI-DSK DSP module running
the exciting new HB9JNX software, "TERM".
When transmitting a CQ in FEC mode the actual signal had
ARQ timing and sounded like a QSO instead of the more fam-
iliar higher speed stream of AMTOR and PacTOR FEC sigs. A
contact in FEC mode QSO on 20M confirmed that it looked
and sounded very strange to K7RD.
I inquired with the author, Tom Sailer, and he responded
that the DSP based code was operating AS IT SHOULD - i.e.
per the SCS specification. He further asserted that the
ARQ timing (chirp...chirp...chirp..) enabled the listening
station to actually SYNCHRONIZE with the CQ instead of
just hoping to catch a strong enough sig and see what was
being xmitted.
This is the first time I encountered this issue. All other
PacTOR stations that I have worked used the stream FEC
mode. I have not worked an SCS equipped station and can't
verify that they operate in this same manner. Would anyone
care to comment on this. If SYNCHRONIZATION is the proper
method, then why haven't other TNC mfgrs used that tech-
nique ?
I think that because I have been trained to listen for the
stream FEC I simply bypass those stations that sound like
ARQ mode xmissions. This means that if I heard the ARQ
rythm I would assume that due to propagation I couldn't
hear the other station and move on. As an xmitting station
I wonder if I would ever get an answer to my CQ :?)
TNX **disconnected**
___________
Ken Hopper, | ___ |
November 9 Vivid Video |o o \_/ o o|
HF - CW,PacTOR,RTTY,SSTV |o o @ o o|
khopper@midway.uchicago.edu |___________|
------------------------------
Date: 17 May 94 07:27:00 GMT
From: ihnp4.ucsd.edu!swrinde!emory!cherry.atlanta.com!nanovx!wa4mei!totrbbs!steve.diggs@network.ucsd.edu
Subject: Ramsey FX440 and PacComm NB96 at 9600?
To: ham-digital@ucsd.edu
-> Subject: Ramsey FX440 and PacComm NB96 at 9600?
-> Message-ID: <1994May17.004830.19468@tigger.jvnc.net>
-> Date: Tue, 17 May 1994 00:48:30 GMT
->
-> Has anyone had any luck using this radio and TNC? I seem to have
-> trouble with the 440's discriminator (marked FSK on board) output
-> driving the NB96's receive audio.
->
-> Any sage advice/observations appreciated to brownell@tigger.jvnc.net.
-> Thanks.
Having recently done several diff. IF interfaces, my guess is you have
an impedance mismatch between your discriminator and the front end of
the 9600 modem. You should be connecting on the side of the
discriminator that leads to the AF section. Try a 5 MFD non-polarized
capacitor in series with the modem and the IF.
This particular problem has driven me nuts several times. While the
modem mfg. will claim that his modem has a very high impedance IC (like
a TL082) as the frontend, you will notice that they often use a 5-10K
resistor as a pull up curcuit on the input side of the TL082. This
completely drives the discriminator curcuit to zero. You need to
eliminate that DC component.
Regards,
Steve Diggs, KB4ZTN
----
Top Of The Rock BBS - Lilburn, GA SYSOP: Steve Diggs
UUCP: totrbbs.atl.ga.us Snailmail: 4181 Wash Lee Ct.
Phone: +1 404 921 8687 Lilburn, GA 30247-7407
------------------------------
Date: 18 May 94 01:06:22 GMT
From: dog.ee.lbl.gov!ihnp4.ucsd.edu!news.cerf.net!ccnet.com!ccnet.com!not-for-mail@ucbvax.berkeley.edu
Subject: TCP/IP freqs in Bay Area
To: ham-digital@ucsd.edu
Scott Statton (n1gak@netcom.com) wrote:
: After a lengthy hiatus (brought about by moving my computer from the
: room near the radio) I'm back on the air.
: In a word: 1200 bps == stupidest-idea-ever-conceived.
Don't knock it ... 2400 bps takes the cake!
: I have three questions:
: 1) Is there a 9600 bps channel in the bay area?
on 2meters try 145.710 generic tcp/ip is on 433.xxx
: 2) What do I need; this is actually a more generic question, perhaps
: a FAQ; what are the various 9600 bps formats used on the air, and what
: are their [in]compatibilities?
: 3) Is there a mailing list for bay area TCP/IP enthusiasts?
At the present time the nos-folk mailing list is distributed only on the
tcp/ip network using 145.750 in Central California. The gateway to
Internet e-mail seems to have broken. :(
Bob n6fri
--
Bob Wilkins work bwilkins@cave.org
Berkeley, California home rwilkins@ccnet.com
94701-0710 play n6fri@n6eeg.#nocal.ca.usa.noam
------------------------------
Date: (null)
From: (null)
Tnx es 73 de Doug N0YVW
--
__ /| | Doug Renze, N0YVW |
\'o.O' | +1 319 339 7814 | Amateur Radio:
=(___)= | drenze@icaen.uiowa.edu | Bringing the World Together
U | |
------------------------------
End of Ham-Digital Digest V94 #153
******************************