HDTenEightyP/NetNews huggingface dataset:
From: oppedahl@panix.com (Carl Oppedahl)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Barry elctronics...
Date: 6 Oct 92 01:51:59 GMT
Organization: PANIX Public Access Unix, NYC

In <9210051956.AA25705@ucsd.edu> FDBBC@cunyvm.cuny.edu (Fred Bogin) writes:

>So where IS a good place to buy ham equipment in the NYC area????

Get a copy of QST, call up the places listed in the ads.  They all have
800 numbers, and you save the sales tax, besides being cheaper than 
retail stores.

Or go to the hamfests.

Carl Oppedahl  AA2KW
From: HWells.El_Segundo@xerox.COM
Newsgroups: rec.radio.amateur.misc
Subject: Using computer power supplies to power rigs?
Date: 6 Oct 1992 16:37:32 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

These are my thoughts in the matter:

As I see it, the switching supply was designed to be inexpensive and physically
light weight for the amount of power and voltage regulation needed for a
consumer product.

From a load point of view, a computer switching power supply would function
well for ham use or another application where the load remains fairly stable.
Switching power supplies for computer use were designed to accommodate a
constant load.  Also, the +5 volt line must be loaded before the supply will
function.

As for RF susceptibility, the switching and regulator circuits are not well
protected.  When subjected to doses of RF, the circuits will respond in a
rather chaotic manner causing the output to vary widely depending upon a
momentary RF voltage stimulus.  Perhaps a little ham intervention with RF
shielding and suppression would cure the problem.  This would be an interesting
project to work on.

Therefore, using a stock supply on an SSB radio where the load varies over a
wide range and the supply is subjected to large doses of RF, I would expect the
switching power supply to be most unsatisfactory.

Hugh Wells,   W6WTU
From: paul@n3eop.pgh.pa.us (paul)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Problems in tuning the Larsen KG-2/70 on glass antenna?
Date: 6 Oct 92 02:52:50 GMT
Organization: CrossRoads in Elizabeth, PA

rambler@pnet51.orb.mn.org (Dan Meyer) writes:

> jdw@wucs1.wustl.edu (j d wilson) writes:
> >	I am trying to find out if anyone else has had the same experience
> >good or bad I'd like to hear about it.  This is just about the only antenna
> >that I could put on this car.  Also note:  Per Larsen the coax on this anten
> >must be an odd number of 1/4 wave-lengths (2m).  So DO NOT cut the coax to
> >length (at least without measuring it!)... And NO I did not make this mistak
> >
> 
> 
> Why does the length of the transmission line make any difference 
> in the SWR? It might make a difference in apparent SWR, but actual 
> SWR (measured near the antenna) will not vary with the length of 
> transmission line.

When the length of the coax makes a difference in the SWR, then the coax 
is being used as an impedence matching device.  Nothing inherently wrong 
with that; it's just that it may be radiating some signal in the car... 
which doesn't do any good.
From: BOBPRIEZ@selu.EDU
Newsgroups: rec.radio.amateur.misc
Subject: Repeater Timers
Date: 2 Oct 92 20:44:56 GMT
Organization: Southeastern Louisiana University
NNTP-Posting-Host: ucsd.edu


  Can any repeater trustees or control operators advise what the 
  legal  (as in FCC)  requirements are for watchdog timers on VHF
  & UHF repeaters?  Not just user or autopatch time-outs, but also
  the lock-up or squelch-tail timer requirements.

  TNX & 73,
   WB5FBS  
  (Bitnet: BOBPRIEZ@SLU      Internet: BOBPRIEZ@SELU.EDU)
Newsgroups: rec.radio.amateur.misc
From: jdw@wucs1.wustl.edu (j d wilson)
Subject: Problems in tuning the Larsen KG-2/70 on glass antenna?
Organization: Washington University, St. Louis MO
Distribution: na
Date: Tue, 29 Sep 1992 03:18:39 GMT

	I have purchased a Larsen KG-2/70 on glass antenna with my 
Kenwood TM-732A (Dual Band rig).  I was wanting to find out if anyone else
has used the Larsen antenna, and if they experienced any tuning or intallation
problems, particularly over defroster wires, per the directions.

I ran a set of VSWR tests on both bands.  They advertise 1.5:1 across both
bands.  The VHF was centered at 1.5:1 on 145.500 MHz, going up or down from here
only made matters worse.   The UHF was much better, but still not within the
1.5:1 rating.  At 442.000 MHz the VSWR was 1.6:1 and at 448.000 it was
a very respecible 1.1:1.  This was tollerable, but per Larsen, I was NOT
to cut the antenna!  Cutting the antenna, top or bottom could possibly
make matters worse.

	The technician I spoke with at Larsen was very helpfull, and basically
this is one that is not tuned correctly, so they are exchanging it.

I have the antenna installed on a Mazda Rx-7 on the back hatch.  To make matters
worse, the glass is not very flat, and I have the Mazda (ABS platic) louvers
on the car.  I eliminated the louver as being the cause (removed it), and ran
a male to male UHF connector to the back of the SWR meter (Diamond).  The 
couplers were also mounted per the directions, centered over one of the 
defroster elements.  

	I am trying to find out if anyone else has had the same experience
good or bad I'd like to hear about it.  This is just about the only antenna
that I could put on this car.  Also note:  Per Larsen the coax on this antenna
must be an odd number of 1/4 wave-lengths (2m).  So DO NOT cut the coax to
length (at least without measuring it!)... And NO I did not make this mistake!

Postings and direct email welcome.

Thanks!

j d wilson
N0TYZ 
Internet: jdw@wucs1.wustl.edu
From: rfinch@water.ca.gov (Ralph Finch)
Newsgroups: rec.radio.amateur.misc
Subject: Re: ICOM-2SRA: 2m and Scanner: How is it?
Date: 3 Oct 92 04:18:12 GMT
Organization: Calif. Dept. of Water Resources
In-reply-to: jclarke@teal.csn.org's message of 1 Oct 92 01:57:40 GMT

I've had one for several months; I think it's great.  One great thing
about the scanner side, which many dedicated scanners don't have (esp.
those from the Shack), is that it's completely linear from 25 MHz to
the top, 950 MHz, no cutouts!  Many scanners deliberately drop freqs
so you can't receive, for instance, cellular phone calls.  I prefer to
decide for myself what to listen to, rather than some burearocrat or
company official.

The only real disappointment for me is that the memories can't be
grouped.  This makes it inconvenient to scan only certain freqs, say,
those of local airports, while turning off all the others.  Also the
scanner sensitivity is a bit poor for aircraft, compared to a
dedicated aircraft band scanner; but probably quite good for such a
small unit with a wide receive range.  I myself have never had any
problems with the scanner antenna, though others have found it flimsy.
Anyway, I would certainly recommend it.
--
Ralph Finch			916-653-8268
rfinch@water.ca.gov		...ucbvax!ucdavis!caldwr!rfinch
Any opinions expressed are my own; they do not represent the DWR
Newsgroups: rec.radio.amateur.misc
From: feustel@netcom.com (David Feustel)
Subject: Comments on AOR 3000 Scanner???
Organization: DAFCO: OS/2 Software Support & Consulting
Date: Fri, 2 Oct 1992 00:25:02 GMT

I just got info on the AOR 3000 and a demo disk containing a program
that controls the AOR 3000 via a serial port. Does anyone have
experience with this radio that they can share? Thanks.
-- 
Dave Feustel N9MYI <feustel@netcom.com>
 
[.sig on vacation]
From: jmccombi@bbn.com (Jon McCombie)
Newsgroups: rec.radio.amateur.misc
Subject: Alinco DR-590T user question
Date: 28 Sep 92 17:57:56 GMT
Reply-To: jmccombi@bbn.com. (Jon McCombie)
Distribution: usa
Organization: Bolt Beranek and Newman Inc., Cambridge MA
NNTP-Posting-Host: bbn.com

The Alinco DR-590T has 4 tuning methods:  VFO, memory, CALL channel and
Automatic Repeater Memory (ARM).  The first three I can figure out, but
what is ARM and how is it different from straight memory?  [Note: yes, I
*have* RTFM--many times--but the English translation is very poor and the
"explanation" for this particular feature is especially unclear.] Any
DR-590 owners out there who can shed some light?

Please e-mail direct.  I will summarize to those interested.

Thanks in advance and 73 de
Jon   N1ILZ
Newsgroups: rec.radio.amateur.misc
From: mju@mudos.ann-arbor.mi.us (Marc Unangst)
Subject: Re: Weak BNC's ??
Date: Wed, 30 Sep 1992 02:41:11 GMT
Organization: The Programmer's Pit Stop, Ann Arbor MI

In article <9209291618.AA0691@catipult.anatcp.rockwell.com> cookav@catipult.anatcp.rockwell.COM writes:
>connector.  No soldering, and in my "hang tests (270 pounds of N7CEU
>dangling from the cable) it is always the cable that fails.  No soldering,

Glad to see that you found a good connector.

Unfortunately, my experience has been the exact opposite.  Crimp-on
connectors especially, and twist-on connectors to a lesser extent,
have been the cause of at least 90% of the problems with our 10Base2
Ethernet.  (No, it's not a feedline, but it's RG-58/U with BNC
connectors on the ends...)  Somebody moves their workstation, they tug
on the cable, and the connector falls off.  And the entire segment
goes down.

-- 
Marc Unangst, N8VRH         | "There are two ways to solve this problem:
mju@mudos.ann-arbor.mi.us   | the hard way, and the easy way.  Let's start
                            | with the hard way."
                            |   - W. Scheider, from a Physics lecture
From: billg@hpspdla.spd.HP.COM (Bill Gingras)
Date: Tue, 29 Sep 1992 18:09:10 GMT
Subject: Floor-to-Ceiling Dipole (73 project) ??s
Organization: HP Stanford Park - Palo Alto, CA
Newsgroups: rec.radio.amateur.misc


I am about to start building an indoor antenna project that was describe
a few months back in 73 magazine (I believe it was the July issue).
This antenna is a ceiling-to-floor mounted vertical dipole with an
air-wound loading col at one end and capacity hats at both ends.

The article isn't very descriptive, but I have been able to figure just
about everything out from the pictures, etc.  The one thing that doesn't
make sense is this:

Apparently, the capacity hats are isolated from the rest of the dipole
via PVC pipe couplers, however, in the photo, it looks like a small
jumper wire connects the hat (on the end of the dipole opposite from the
coil) to the element.  (If you have the magazine, look at the bottom of
the antenna to see the jumper I'm talking about).  So my question is, if
you expend the effort to isolate the hat from the rest of the element
via a pipe coupler, why connect it back together again with a jumper?
Are capacity hats supposed to be isolated from the element (I don't have
a copy of "the Handbook").  By the way, the antenna is supposed to work
10 through 20 meters by moving a tap on the coil.

I'd prefer responses to this post be sent via e-mail since I have not
been able to keep up with the net lately.

Thanks,

- Bill G
From: stevej@pillock.moron.vware.mn.org (Steven Jarosh, KA0VYB)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Safety of auto battery for power?
Date: 4 Oct 92 07:22:27 GMT
Organization: 11th Hour Contest Group (North American Chapter)

turner@safety.ICS.UCI.EDU (Clark Savage Turner WA3JPG) writes:

> I have just purchased a good quality auto 12V battery to power my
> station in an emergency.  (The "big one" may hit at any time, and I
> don't want to give up the good 40 meter DX that may appear at that
> time :-) )
> 
Clark,

Hopefully you bought a deep cycle battery and not an auto battery.  The
typical auto battery is not designed for repeated deep discharges, this tends
to destroy it in a short period of time.  A deep cycle battery is designed
for this kind of long term cyclic operation.  They are rated in amp-hrs 
instead of CCA's and the common large battery is 115 amp-hrs.  

Steve KA0VYB

p.s. Don't forget to put it on a piece of wood.  :-)  (A dig from another 
thread.)
From: rhughes@UCSD (Richard J. Hughes)
Newsgroups: rec.radio.amateur.misc
Subject: Re: callsign
Date: 6 Oct 1992 05:43:57 GMT
Organization: ucsd.edu
NNTP-Posting-Host: dial-slip22.ucsd.edu

In article <1992Oct5.075116.6197@netcom.com> bart@netcom.com (Harry Bartholomew) writes:

>telnet to electra.cs.buffalo.edu 2000

This is a strange one.  If I telnet to that address at work, over an 
etherenet connection, it works fine.  From home, using a SLIP connection, 
the 2000 apparently gets stripped off and I am prompted for a login name and 
password.  I start telbin using a batch file which should pass suffixed 
arguments, %1 %2 %3, etc.

Any ideas?

Richard Hughes
KM6ED
From: tech@aupair.cs.athabascau.ca (Richard Loken)
Newsgroups: rec.radio.amateur.misc
Subject: Re: SWR meters, news from an ex-service manager.
Date: 28 Sep 92 22:06:31 GMT

jangus@skyld.UUCP (Jeff Angus) writes:

>  I had the Bird, and I sold it. (Along with the nice leather case, six pairs
>  of quick change connectors and 8 slugs) No, I don't want to think about how
>  much money it took to accumulate that. For measuremnts here in the shack, I
>  have an old Monarch CB VSWR bridge. (They were sold under various names in
>  the 60-70's) It works great at low powers up through 500 MHz. And for pure
>  glitz, (it spends most of it's time in it's box) the new Diawa LCD digital
>  power meter. (yup, being the service manager had its perqs.)

I will keep my Bird and its half dozen slugs thankee kindly.  I bought the
bird for reliabiliy which it has given me for 20 years.  I tune for maximum
out and minimum in.  If the meter doesn't move on reverse then there probably
isn't much there to move.  As for the leather case, the meter is the left
between the HF rig and the transmatch unless I take it out to tweak some VHF 
widget or some such.

Why should I or anybody else care what the VSWR is?  What is this VSWR stuff
anyway?  What I would kind of like to do is put a couple of RF ammeters in
the two leads of my #14  open wire feeders.  Might as well see what goes up
to the roof.

Please, no kindly letters explaining what VSWR is, I knew that stuff before
most of you reached puberty.


--
  Richard Loken VE6BSV                             : "ISDN (acronym)
  Athabasca University, Athabasca, Alberta Canada  : Innovations 
  tech@cs.AthabascaU.CA                            : Subscribers Don't Need."
  {atha|aunro}!cs.athabascau.ca!tech               : - some sorehead or other
Newsgroups: rec.radio.amateur.misc,rec.radio.amateur.packet
From: sam@wa4phy.ampr.org (Sam Drinkard)
Subject: Wyse model 50 pinouts
Keywords: Terminal Wyse Help 
Reply-To: wa4phy!sam@galois.nscf.org 
Organization: None
Distribution: usa
Date: Sat, 3 Oct 1992 20:58:07 GMT


Can someone please send me the modem and auxillary port pinouts for a
Wyse mod 50 terminal.  I've acquired 4 of the beasts, but no docs for
them.

Thanks...

-- 
     Sam Drinkard		internet: wa4phy!sam@galois.nscf.org
     WA4PHY			amprnet:  wa4phy@wa4phy.ampr.org
Newsgroups: rec.radio.amateur.misc

Ken:

I hate to post this, but the email address in your .sig didn't work.
(gets as far as pilchuck.data-io and loops).  I'd like to find
out more about your internet-packet gateway.  Especially since it seems to
be local.  Can you give me a better internet address?

Thanks.
---

C Panek KX7L			Hewlett Packard Company
charlier@lsid.hp.com            Lake Stevens Instrument Division
                                Everett, Washington
Newsgroups: rec.radio.amateur.misc
From: mju@mudos.ann-arbor.mi.us (Marc Unangst)
Subject: Re: Info on 2m glass/disguise antenna wanted
Date: Mon, 28 Sep 1992 15:56:01 GMT
Distribution: usa,local
Organization: The Programmer's Pit Stop, Ann Arbor MI

In article <1992Sep28.074208.3768@arizona.edu> petrisko@evax2.engr.arizona.edu writes:
>Anyway, the question remains... how can I mount some useful antennas?

I like my 2m 5/8-wave magmount.  To get the coax inside the car, try a
technique that I learned from another ham: take a DIP chip tube, and
cut it to the appropriate length so that it fits over the top edge of
the glass and goes all the way across the window.  Then, cut a notch
in it that's just wide enough for the coax to go through.  When you
roll up the window, the coax goes through the notch, and the rest of
the tube makes a rather good compression fit against the
weatherstripping.  No more problems with wind noise, or rain leaking
in the car.  That door can't be used much, but you might be able to
bring it in through the back window in your truck.

-- 
Marc Unangst                | "There are two ways to solve this problem:
mju@mudos.ann-arbor.mi.us   | the hard way, and the easy way.  Let's start
                            | with the hard way."
                            |   - W. Scheider, from a Physics lecture
Newsgroups: rec.radio.amateur.misc
From: alan@bambam.es.com (Alan Brubaker)
Subject: Re: DX Windows
Organization: Design Systems Division, Evans & Sutherland, SLC, UT
Date: Mon, 5 Oct 92 14:27:38 GMT

In article <9210050923.aa10478@COR5.PICA.ARMY.MIL> jkeller@pica.army.mil (Jerome Keller, PPD) writes:
>Some(that I cannot recall ever seeing here) would be a list of the
>DX "windows" for each band, for CW and also for SSB. I could use it, and
>I'll bet there's others too. In anticipation, THANKS !!
>
>73 de K1MER

Nothing "official" here, but over the years I have noticed a 
pattern of DX activity as follows:

160:  1820-1830 - DX window.
      1907-1912 - JA CW window.

80:   3503-3510
      3525, 3795  DXpeditions
      3790-3800

40:   7003-7010
      7025, 7095  DXpeditions
      7090-7097

20:  14003-14010
     14025, 14195  DXpeditions
     14153-14200

15:  21003-21010
     21025, 21295  DXpeditions
     21250-21275

10:  28003-28010
     28025, 28495  DXpeditions
     28490-28500

Good DXing.

-- 
Alan Brubaker, K6XO      |~~|_  "Pumps have handles, Hams have names;
<IYF disclaimer>         | *  |mine's Lee, what's yours?" - Lee Wical,
Internet: alan@dsd.es.com|____|KH6BZF, the Bloomin' Zipper Flipper.
From: darrin@mit.edu <Darrin Robinson>
Newsgroups: rec.radio.amateur.misc
Subject: LOCATION: Location of Amateur Radio Store -- NYC, NY
Date: 28 Sep 1992 20:48:08 GMT
Organization: Massachussets Institute Of Technology
Distribution: usa
NNTP-Posting-Host: pds.geo.brown.edu


Anyone who could E-Mail me the locations of Amateur Radio Stores in
the Manhattan (Mid-Town) area of NYC, please let me know!  I'm going
there this weekend, and need to buy some "candy."

Regards,

Darrin, N1LLV
#include <std_disclaimer.h>
=============================================================================
=  Darrin E. Robinson (DER31) =    Hamnet     N1LLV  146.700-, 146.880- MHz =
=  MIT/IS DCNS Sys. Support   =    Internet   darrin@mit.edu                =
=  1 Amherst St - Rm E40-338  =               n1llv@porter.geo.brown.edu    =
=  Cambridge, MA 02139        =    ICBMnet    41 29' 24" N   71 18' 48" W   =
=  AT&Tnet: (617) 253-0131    =    Nasamail   derobinson@nasamail.nasa.gov  =
=============================================================================
From: ron@topaz.bds.com (Ron Natalie)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Original License or is Copy OK ?
Date: 30 Sep 1992 19:44:54 GMT
Organization: BDS Systems
Distribution: world
NNTP-Posting-Host: topaz.bds.com

> OK! The license finally arrived. What is normal practice amoung amateur radio
> operators? Should I put the original in the safety deposit box and use
> photocopies or do I need the original in my wallet and on my station wall?

I just stuck it in my wallet.  Nobody ever wants to see it (unless I upgrade
which I'm done doing) and it's not difficult to replace if it gets lost or
damage (as a matter of fact, it's much less tramatic than losing the other
stuff in my wallet like my drivers license and credit cards).

-Ron
Newsgroups: rec.radio.amateur.misc
From: johng@ecs.comm.mot.com (John Gilbert)
Subject: Re: Pager Question
Organization: Motorola, Inc. Land Mobile Products Sector
Distribution: na
Date: Mon, 5 Oct 1992 22:35:05 GMT

>Typically the pager will not lose ANY sensitivity on a frequency change
>of less than a couple of MHz.  All you would have to do is change the
>crystal and tweak it on channel.
>
>However, there is a separate question: you need to ensure that the pager
>you have is compatable with the encoding system (POCSAG, GOLAY, etc) used
>on the new system, and that it doesn't duplicate an existing code.
>Those items may need to be changed too.
>	- Brian

Brian is correct. POCSAG is available in 512, 1200 and 2400 bps.
You need to make sure that the speed matches as well.

-- 
John Gilbert                          johng@ecs.comm.mot.com
From: jangus@skyld.UUCP (Jeff Angus)
Newsgroups: rec.radio.amateur.misc
Subject: Callsigns
Date: 28 Sep 92 23:51:07 GMT
Organization: Grendel's Lair

New callsigns? I see QSL cards with the entire history file of the guys (oops)
"operators" previous callsigns. I finally had my cards printed up with:

        WA6FWI, ex WN6FWI

I felt left out of the history file crowd.

xenon!skyld!jangus   < This space left blank intentionally. >
J Angus, PO Box 4425, Carson CA 90749-4425 voice (310) 324-6080
From: jkearman@arrl.org (Jim Kearman)
Newsgroups: rec.radio.amateur.misc
Subject: Re: VersaLoop Antenna
Date: 5 Oct 92 12:36:21 EDT
Organization: American Radio Relay League

Kevin Sanders, KD6FKJ inquired about the VersaLoop
antenna.

A friend and I each used one for a year or so after
the article appeared in QST.

Mine was two 30-meter loops, suspended from a tree
branch. I fed it with about 100 feet of 450-ohm
parallel line. My original tuner was a Johnson KW
"Matchbox." 

I configured mine as a delta loop, and the bottom 
of the loops was about 6 feet off the ground. Per
the article, I used relays to select the loops, and
also to short them at the top. On 30 and 10 meters,
they worked better shorted; other bands were usually
better open. Performance was quite good. I oriented
the loops to favor 45-225 and 0-180 degree headings,
with no noticeable ill effects.

My Johnson Matchbox won't tune to 30 meters, so I
bought a used B&W "KW" tuner with balun. I rue the
day ever I laid eyes on that tuner! 'Nuff said.

Everything went fine with my VL, until the day I
dumped the output of my SB-220 into it, with the
relay at the top open. It _WAS_ a pretty hefty, 
ceramic-framed relay, with silver-plated contacts.
I guess the open-circuit voltage was pretty high!

My friend built his VL pretty much like the article:
20-meter loops, suspended from pipe masting. He was
using a TS-820 with no second VFO, trying to work
DX on SSB. Myself, I find banging my head on a battery
sitting on a cold, concrete floor more appealing. 
Still, he had pretty good success, especially 
considering the cost and simplicity of the antenna.

I have an MFJ "300-watt" tuner. I have melted the
insulation on the balun with the output of an IC-751A.
It's safe to say there's some loss in that balun!
On the other hand, you have the tuner in hand, so
try it. If you melt the balun, I'll tell you how to
fix it. If you blow the relay at the top of the loops,
well, I warned you. Since those days, I've taken the
QRP pledge. (And yes, I mostly use CW!!!)

****************************************************************
JIM KEARMAN, KR1S                    Voice: 203-666-1541 ext 279
ARRL Assistant Technical Editor	     FAX:   203-665-7531
Author of `The DXCC Companion'	     ARRL Headquarters
Editor of `Now You're Talking!,'     225 Main Street
License Manuals/Instructor's Guides  Newington, CT 06111
Author of `Wally and Mike'           e-mail: jkearman@arrl.org
*****************************************************************
Newsgroups: rec.radio.amateur.misc