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1994-11-13
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Date: Sun, 6 Mar 94 04:30:22 PST
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 #60
To: Ham-Digital
Ham-Digital Digest Sun, 6 Mar 94 Volume 94 : Issue 60
Today's Topics:
aprs400.zip - Hams: Automatic Packet Reporting System (APRS)
APRS operations on 145.79???
Baycom modem
Hamblaster Mailing List
Help w/MFJ-1278 probx?
MSK receiver?
Packet Bulletins via Anonymous FTP
Problem using Tcp/ip mailboxes from internet
Tandy Model 100 and Baycom/PMP
TPK 1.84.
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: 28 Feb 94 17:33:40 GMT
From: agate!howland.reston.ans.net!europa.eng.gtefsd.com!NewsWatcher!user@ucbvax.berkeley.edu
Subject: aprs400.zip - Hams: Automatic Packet Reporting System (APRS)
To: ham-digital@ucsd.edu
In article <9402211823.kp249@SimTel.Coast.NET>, TPDugan@DOCKMASTER.NCSC.MIL
(Tim Dugan) wrote:
> I have uploaded to the SimTel Software Repository (available by anonymous
> ftp from the primary mirror site OAK.Oakland.Edu and its mirrors):
>
> pub/msdos/hamradio/
> aprs400.zip Hams: Automatic Packet Reporting System (APRS)
>
> APRS avoids the complexity and limitations of trying to maintain a
> connected packet radio network. It accomplishes the real-time display
> of operational traffic via UI frame broadcasts and map displays. A
> station with information to contribute transmits it, and all stations
> receive it.
>
> APRS automatically tracks mobile packet stations interfaced to GPS
> or LORAN, and works just as well with manual tracking. Specific
> applications include weather nets, direction finding, plotting
> satellite contacts, and so forth.
>
> Where is the Army-Navy game football, the event leader, the fire?
> What's the weather like at various points in the county? Where are the
> power lines down? Where is the flood, the hurricane, the earthquake?
>
> Uploaded for the author, Bob Bruninga, WB4APR @ WB3V.MD.USA
>
> Tim Dugan, KA3YYP
> TPDugan@dockmaster.ncsc.mil
Is there a version of APRS software for the macintosh yet ...? If so,
could you tell me what site I can get it from ....
Thanx Keith ....
--... ...--
*********************************************
Keith J Leite KA1AQB
AX25 - KA1AQB @ WA1PHY.#EMA.MA.USA.NA
AMPR - ka1aqb@switch.sema.ampr.org
Internet - kleite@sentry.ndhm.gtegsc.com
**********************************************
------------------------------
Date: 1 Mar 94 05:52:41 GMT
From: sdd.hp.com!think.com!spdcc!russell@hplabs.hp.com
Subject: APRS operations on 145.79???
To: ham-digital@ucsd.edu
Hello all,
Recently, amateurs in the Omaha area where I live have been looking into
getting an APRS network set up, and one thing that's been a concern of
several people (myself included) is the fact that the "standard" frequency
that is being used for APRS is 145.79 mHz.
This seems to us to be much too close to the 145.80-146.00 satellite
band, especially given the fact that APRS is designed for wide-area operation
and people will probably be running some high-powered digipeaters, at least
on a temporary basis for special events and probably on a permanent basis.
It has also been mentioned that this frequency falls in a subband that
has been suggested for experimental uses, and a permanent packet network
based on established AX.25 protocols hardly seems experimental.
What do you think? Are we being paranoid, or is it just that APRS
isn't popular enough for people to have noticed? I'd like to see this
discussed before people sart putting up fixed-frequency remote digis, etc
that will be VERY hard to get moved. APRS looks like a great system, and
I think it does need a coordinated frequency, but I don't think 145.79
should be that frequency.
--
Tim Russell n0zhy@wd0har.#ene.ne.us.na russell@spdcc.com
Most people would rather have comfort than freedom. The paradox is that you
can't really have the former, in the long term, unless you have the latter.
-- Amanda Walker
------------------------------
Date: Fri, 4 Mar 1994 15:10:12 GMT
From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!news.msfc.nasa.gov!europa.eng.gtefsd.com!howland.reston.ans.net!pipex!sunic!psinntp!psinntp!gdstech!gdstech!bat@network.ucsd.edu
Subject: Baycom modem
To: ham-digital@ucsd.edu
Serdar, a digicom modem WON'T work on a phone line. It is
only for sending and receiving packets from a radio. It has
no onboard processor to execute any commands. It will
not work with the usual communicatios software on a PC, like
Procomm, Telix, etc. It needs special software to operate.
--
*-----------------------------------------------------------*
* Pat Masterson D12-25 | KE2LJ@KC2FD *
* Grumman Data Systems | 516-346-6316. *
* Bethpage, NY 11746 | bat@gdstech.grumman.com *
------------------------------
Date: Fri, 4 Mar 1994 14:00:15 GMT
From: ihnp4.ucsd.edu!news.cerf.net!pravda.sdsc.edu!nic-nac.CSU.net!newshub.sdsu.edu!ucsnews!sol.ctr.columbia.edu!howland.reston.ans.net!pipex!sunic!psinntp!psinntp!laidbak!tellab5!jwa@network.
Subject: Hamblaster Mailing List
To: ham-digital@ucsd.edu
I'm trying to compile an e-mail list for
those who wan't Hamblaster Updates. I'll
include your address in the list and auto-
matically send the updates.
So if you want to be on the list e-mail your reply.
---
Jack Albert WA9FVP Fellow Radio Hacker
Tele (708) 378-6201
Tellabs Operations, Inc. FAX (708) 378-6721
1000 Remington Blvd. jwa@tellabs.com
Bolingbrook, IL 60440
The daffinition of stupid
"The guy reading this book. If he doesn't
know the definition of stupid he is!"
------------------------------
Date: 4 Mar 1994 14:54:19 -0500
From: usc!elroy.jpl.nasa.gov!news.msfc.nasa.gov!europa.eng.gtefsd.com!howland.reston.ans.net!vixen.cso.uiuc.edu!sdd.hp.com!news.cs.indiana.edu!babbage.ece.uc.edu!ucunix.san@ihnp4.ucsd.edu
Subject: Help w/MFJ-1278 probx?
To: ham-digital@ucsd.edu
I have picked up a 1278 which has problems--I can talk to it but it
doesn't seem to want to communicate out the far end. I can talk to its
monitor program to change settings, using an IBM clone and ProComm, and
I can even tell it to type out morse code, so the communication between
the unit and the micro is okay, it seems.
However, it I tell it to connect to itself, as per the manual's checkout
instructions, it gives up after a few tries and says it can't find
itself (that is, MYCALL is WB8VNV and "CONNECT WB8VNV" ends with "Too
Many Retries"). Since it's used, I -think- but can't be -sure- I have
all of the jumpers, etc., correct (note that the checkout procedure is
done -without any connection to the radio-; it's an internal
"connection").
The ham I got if from is hard to get hold of (-: (no, he's in and out of
town on business, that's all), so can anyone give me pointers of what
jumpers/settings I ought to recheck as critical? I've been through the
manual so many times my eyes are glazed over.
How is MFJ about servicing these--as good as TenTec?
Many thanks for any help.
Theodore Allan (Ted) Morris, University of Cincinnati Medical Center,
513-558-0177V, -2682F, MORRIS@UCUNIX.SAN.UC.EDU, MORRISTA@UC.EDU, WB8VNV
Previous politically-incorrect tag-line removed.
------------------------------
Date: 1 Mar 94 16:21:08 GMT
From: nprdc!ihnp4.ucsd.edu!mvb.saic.com!netnews.wku.edu!wkuvx2.wku.edu!scottcr@network.ucsd.edu
Subject: MSK receiver?
To: ham-digital@ucsd.edu
In article <TM.94Feb23143402@koppelo.cs.tut.fi>, tm@koppelo.cs.tut.fi (M{nnist| Tatu) writes:
>
> Does anyone know where to find or how to build a radio receiver that
> picks up MSK (minimium shift keying) modulated 100 bits/sec data
> transmitted on aprox 300 kHz carrier signal?
>
> This would be used to receive differential GPS-corrections from a
> reference station.
>
> Any pointers?
> --
> ---------------------------------------------------------------------------
> Tatu Mannisto Tampere Univ. of TeXnology
> +358 31 434 456 home Internet: tm@cs.tut.fi
> +358 31 162 951 work (HB230)
> ---------------------------------------------------------------------------
Normally you would mix a LO with the ~ 300 khz to get say, a 50 khz IF,
then use something like a EXAR 2211 FSK demod to recover the data.
Or, use a phillips 615 (NE or SA) to do the mix, lo, and demod, all
on one chip.
--
SCOTTCR@WKUVX1.WKU.EDU aka Chris Scott- C/E Public Radio- Western KY U
Telco: (502) 745-3834 Hm & Fax: (502) 781-1232
...just another insignificant VAX user. \\\//
(o o)
--------------------------------------------ooO-(_)-Ooo-----------------------
------------------------------
Date: 4 Mar 1994 21:27:31 GMT
From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!news.msfc.nasa.gov!europa.eng.gtefsd.com!gatech!usenet.ufl.edu!travis.csd.harris.com!travis!bob@network.ucsd.edu
Subject: Packet Bulletins via Anonymous FTP
To: ham-digital@ucsd.edu
I am looking for anonymous ftp sites that keep recent packet bulletins.
I already know about hamgate2.w5-f6cnb.ampr.org which has a fair number
each day. Any suggestions appreciated.
Bob / KA4SRT
bgray@csd.harris.com
------------------------------
Date: Sat, 5 Mar 1994 02:15:46 GMT
From: ihnp4.ucsd.edu!mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!gatech!udel!news.sprintlink.net!direct!news.direct.net!nu7i@network.ucsd.edu
Subject: Problem using Tcp/ip mailboxes from internet
To: ham-digital@ucsd.edu
Hello. I am on a 386 Bsdi 1.0 unix box using vt100 terminal emulation.
The system I am using used to be under System V and there were no
problems with telnet to places like wa7slg.ampr.org.
Now, under Bsdi, however, when I hit enter I see the ^m. Also, when
sending commands to packet nodes like the r command for routes I get an
invalid command. I have a feeling that my enter and other commands are
no longer processed right. Any suggestions? Thanks. 73
--
Darrell Shandrow at Arizona State University
Member: National Federation of the Blind
"Proud, Angry, and Strong" -- quoted from Jennifer Restle
(The complete information access agenda - You print it you braille it too!)
------------------------------
Date: 4 Mar 94 14:39:50 GMT
From: nprdc!ihnp4.ucsd.edu!pacbell.com!att-out!cbfsb!cbnewsg.cb.att.com!mam@network.ucsd.edu
Subject: Tandy Model 100 and Baycom/PMP
To: ham-digital@ucsd.edu
Has anyone figured out how to connect a Baycom/Poor Mans Packet circuit
to a Tandy Model 100?
I just finished building a Baycom modem for packet, and I'd just love
to be able to use my portable, non-MSDOS compatible Model 100 as a terminal
to at least receive those packets.
Actually, we've been trying to get the Model 100 to decode the signals directly
through the cassette port. All we've been able to do is CW so far. RTTY
is next, unless someone has cracked that nut already ...
Thanks,
Mark KB2els
mccuistion@attmail.att.com
------------------------------
Date: 4 Mar 1994 18:27:09 GMT
From: news.cerf.net!pravda.sdsc.edu!nic-nac.CSU.net!news.Cerritos.edu!news.Arizona.EDU!math.arizona.edu!noao!ncar!gatech!howland.reston.ans.net!EU.net!sunic!isgate!news.rhi.hi@ihnp4.ucsd.edu
Subject: TPK 1.84.
To: ham-digital@ucsd.edu
Hello, does anyone know where I can ftp. the newes version
of TPK, witch would be version 1.84. I already have
versio 1.81. I am told that the support for BPQ is
mutch better and the mail interface with the FBB BBS in the
new version.
So please e-mail or post if you know where to find TPK 1.84.
73 CUL de TF3BNT
Benedikt Sveinsson
Hateigsvegur 2
105 Reykjavik
Iceland
e-mail : bnt@rhi.hi.is
packet : TF3BNT.ISL.EU
------------------------------
End of Ham-Digital Digest V94 #60
******************************