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1994-11-14
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Date: Wed, 8 Jun 94 04:30:26 PDT
From: Ham-Equip Mailing List and Newsgroup <ham-equip@ucsd.edu>
Errors-To: Ham-Equip-Errors@UCSD.Edu
Reply-To: Ham-Equip@UCSD.Edu
Precedence: Bulk
Subject: Ham-Equip Digest V94 #179
To: Ham-Equip
Ham-Equip Digest Wed, 8 Jun 94 Volume 94 : Issue 179
Today's Topics:
Any 1 hv problems w/ Porsche 924/944 + ham radios
Crystals
DUAL BAND RADIO 4SALE
Heath HW 5400 == Your Comments
Help On Selection of 2M HT
Icom R100 Comments SOught
ICOM W21AT . . . new . . . cheap
KAM Firmware.
Motorola: Micor & Mocom70
Old Heat receiver
SWR Analyzers (2 msgs)
TS-850 transmit coverage
Wanted: Fluke 8600 DMM Diagram/Manual
Send Replies or notes for publication to: <Ham-Equip@UCSD.Edu>
Send subscription requests to: <Ham-Equip-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Equip Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-equip".
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: 7 Jun 1994 06:01:06 GMT
From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!netline-fddi.jpl.nasa.gov!nntp-server.caltech.edu!pjb@network.ucsd.edu
Subject: Any 1 hv problems w/ Porsche 924/944 + ham radios
To: ham-equip@ucsd.edu
I am considering putting VHF/UHF or maybe even a portable
HF station in a 1987 Porsche 924S. Has anyone had RFI problems to
the computerized components in this vehicle, or in the 944 ('87-88 924
has 944 engine ) ??
If you did have problems , what power level were you running?
Did moving the antenna help at all ?
Thanks
73
Paul Brewer
pjb@cco.caltech.edu
------------------------------
Date: Tue, 7 Jun 94 19:27:45 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!gatech!news-feed-1.peachnet.edu!news.duke.edu!eff!news.kei.com!ub!netfs.dnd.ca!dgbt!clark.dgim.doc.ca!news@network.ucsd.edu
Subject: Crystals
To: ham-equip@ucsd.edu
Here's a long shot, but hopefully...
Has anyone out there in the HAM radio world ever come across, or is
currently in possession of a "Kate Blevis Crystal"? My grandparents
manufactured crystals (in Canada) for radio tuners during the second world
war and I met some people who have seen them before. If you have any
information, could you please reply via email to me.
Thanks in advance,
Mark
--
Mark Blevis Communications Research Centre
mblevis@clark.dgim.doc.ca
------------------------------
Date: 7 Jun 94 15:41:56 GMT
From: dog.ee.lbl.gov!newshub.nosc.mil!cg57.esnet.com!bbs.dsnet.com!usenet@ucbvax.berkeley.edu
Subject: DUAL BAND RADIO 4SALE
To: ham-equip@ucsd.edu
*******************
*DUAL BAND HT 4SALE*
********************
Have 1 DJ-580T, ALINCO RADIO 4$ALE, w/ ACCESSORIES. This is a
nice
little HT, I have one of my own. The HT is barely 1 Month old and
like NEW.
If you buy NEW(with NO ACCESSORIES) it'll cost you just under
$420,
depending on where you live and what ur sales tax is.
Selling this radio for $335.00 + Shipping with a few accessories:
* MICROPHONE
* PLUG IN LIGHTER ADAPTER
* RADIO CASE
If intersted, let me know... ASAP...
73 - Dave!
------------------------------
Date: 7 Jun 1994 15:50:49 GMT
From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!news.aero.org!news2.aero.org!greenberg-t.aero.org!user@network.ucsd.edu
Subject: Heath HW 5400 == Your Comments
To: ham-equip@ucsd.edu
I would be interested in hearing from anyone having experience with the
Heath HW 5400 all band HF rig. I have the opportunity to pick up one of
these orphane radios in excellent working condx for 100 bucks incl. power
supply. Let me know about your troubles, likes, dislikes, mods, etc.,
through the last 10 years or so, since it came out.
Thanks & 73.
Steve Greenberg
Aerospace Corporation
------------------------------
Date: Tue, 7 Jun 1994 12:48:01 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!csulb.edu!csus.edu!netcom.com!rogjd@network.ucsd.edu
Subject: Help On Selection of 2M HT
To: ham-equip@ucsd.edu
Robin Alexander (robin@ayjen1.ayo.dec.com) wrote:
: Hi,
: I`m currently on reclocation in WA for a couple of months. I would like
: to get myself a 2M HT. Last time I bought one of these was about 10 yrs
: ago. I was wondering if anyone could give me any experience or advice
: on what to buy. On comment I can make on what I`ve seen so far is that
: ICOM seem to have a bewildering array of HT`s.
: My requirements in order of priority are loosely these : -
: 1) Small-My Wife wants to be able to carry it in her purse comfortably.
: 2) MODIFIABLE for the UK Tone Burst.
: 3) Pager Function.
: 4) Easy To use.
: 5) Good Performance.
: 6) Ease of use in the car.
:
: Any comments advice would be gratefully received.
I used my Kenwood 78A while mobiling around the state of WA a couple of
years ago, and really enjoyed it. You guys have lots of linked 2M and
440 repeaters up there. The 78A does have the pager function, and just
about every other major bell/whistle that's out there. I don't know if
it is modifieable for the UK tone burst, although I believe that the
European model (the 78E) comes with it, so maybe it is. (You could call
Kenwood).
Ease of use: the design philosophy is to program the functions to the
memory channel, at which time the radio is very easy to use. Programming
the 78A usually involves having the manual handy though.
The alphanumeric display is very nice. With the $25 ME-1 memory chip,
the radio has 125 alphanumeric memories, which is particularly nice if
you travel, since you can program big chunks of channels by geographic
area without deleting your home channel stuff.
I really like my 78a. It is a good radio.
73
--
rogjd@netcom.com
Glendale, CA
AB6WR
------------------------------
Date: 7 Jun 94 15:09:17 GMT
From: agate!overload.lbl.gov!dog.ee.lbl.gov!ihnp4.ucsd.edu!usc!howland.reston.ans.net!gatech!newsxfer.itd.umich.edu!zip.eecs.umich.edu!panix!not-for-mail@ucbvax.berkeley.edu
Subject: Icom R100 Comments SOught
To: ham-equip@ucsd.edu
I have a friend who is interested in the Icom R100. If you have
experience with this radio, he'd appreciate hearing your comments
(both pro and con) as well as alternative suggestions. Pointers to
anyplace where discussions about the R100 might be archived would also
be useful. I'll forward replies.
-Thanx
-Adam (N2DHH)
adam@panix.com
------------------------------
Date: 7 Jun 94 14:37:52 GMT
From: agate!howland.reston.ans.net!sol.ctr.columbia.edu!news.cs.columbia.edu!news.columbia.edu!manila.cc.columbia.edu!alan@ucbvax.berkeley.edu
Subject: ICOM W21AT . . . new . . . cheap
To: ham-equip@ucsd.edu
In article <1994Jun6.135054.2444@hnrc.tufts.edu>,
Jerry Dallal <jerry@hnrc.tufts.edu> wrote:
>Because there has been some interest in the ICOM W21AT in this news group, the
>following information might prove useful . . .
>
>Last Saturday I went to the ICOM Tour America demo at Rivendell in Derry, NH.
>The ICOM W21AT was on sale for $435.
> etc.
I got the W21AT for $425 mail order from HRO a few months ago. I don't
know if there's been tremendous inflation since then, but I would advocate
calling around to the mail order companies too. See any QST issue for the
ads.
73 de N2YGK
------------------------------
Date: 7 Jun 94 22:05:03 GMT
From: sdd.hp.com!col.hp.com!jms@hplabs.hpl.hp.com
Subject: KAM Firmware.
To: ham-equip@ucsd.edu
Brad Killebrew N5LJV (st3qi@elroy.uh.edu) wrote:
: What's the latest firmware for the KAM? I've had this thing for five
: years and may nead to catch up to modern times. Thanks es 73...
------------------------------
Date: 7 Jun 1994 12:27:57 -0400
From: ihnp4.ucsd.edu!sdd.hp.com!usc!howland.reston.ans.net!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!zip.eecs.umich.edu!panix!not-for-mail@network.ucsd.edu
Subject: Motorola: Micor & Mocom70
To: ham-equip@ucsd.edu
j d wilson writes:
>>James, I'm in the process of modifying a Micor for the 2 Meter band.
Dana Myers writes:
>Hmmm... if you get a "low split" receiver, you don't need to do anything but
>tune it up. Even the "mid split" receivers will usually tune down OK.
Locally, we have had the same experience with VHF and UHF micors (tx
& rx) that we put into repeater service, voting receiver service, and
packet service. If you're patient, you can find radios that are in
the right range to begin with (eg 136-148) but the more common splits
(150+ and 450+) will work also. Low band models do need to be
modified (for 10M & 6M).
My favorite Micor story is from Dayton. There was a guy pulling his
~3 year old daughter along in a little red wagon as he browsed the
flea market. A few hours later, I saw him again. The wagon was
sagging under the weight of at least 6 micors and the 3 year old was
walking. Maybe you had to be there...
-Adam
------------------------------
Date: 7 Jun 1994 11:03:57 GMT
From: newsflash.concordia.ca!canopus.cc.umanitoba.ca!eeserv.ee.umanitoba.ca!porban@uunet.uu.net
Subject: Old Heat receiver
To: ham-equip@ucsd.edu
I picked up an old receiver at a garage sale, a Heat GR 78. The unit is
not working. Anyone knows where can I find documentation (user and service)
to this receiver?
Thanks, Peter
orban@nrcamt.nrc.ca
------------------------------
Date: 7 Jun 1994 14:15:04 GMT
From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!lll-winken.llnl.gov!noc.near.net!jericho.mc.com!fugu!levine@network.ucsd.edu
Subject: SWR Analyzers
To: ham-equip@ucsd.edu
In article 5Bo@netcom.com, greg@netcom.com (Greg Bullough) writes:
-->In article <2sn83m$2ic@hopper.acm.org> smithson@ACM.ORG writes:
-->>Does anyone have any experience/opinions about available SWR analyzers,
-->>like AEA's HF Analyzer or the MFJ models?
some stuff deleted
-->I can't comment on the AEA item, but it strikes me as a bit overprice and
-->overkill.
-->
-->Greg
The AEA HF 121 is a great instument. Yes it is expensive, but
it is a device that has no rival. It can save hours and
lotsa headaches tuning a multiband antenna and making a quick
check on an existing system.
It is amazing to set the display to it's maximum bandwidth
and then hook up an R5 or a G5RV to see all the dips.
Some devices are expensive but worth having. Consider the Bird
wattmeter, ~$300 plus slugs. But it will last you forever.
---
------------------------------------------------------------
Bob Levine KD1GG 7J1AIS VK2GYN formerly KA1JFP
levine@mc.com <--Internet email Phone(508) 256-1300 x247
kd1gg@wa1phy.ma <--Packet Mail FAX(508) 256-3599
------------------------------------------------------------
------------------------------
Date: 7 Jun 94 17:34:51 GMT
From: sdd.hp.com!col.hp.com!srgenprp!bsplaine@hplabs.hpl.hp.com
Subject: SWR Analyzers
To: ham-equip@ucsd.edu
Arlan R Levitan (arl00@ccc.amdahl.com) wrote:
: I had one of the MFJ analyzers (believe it was the 249) for a couple of
: days. Worked okay, but according to my Startek frequency counter, the
: MFJs frequency generator was not particularly stable. On power up it
: would drop a few Hz every second. The drop rate slowed after warm up
: but was still definitely there.
I bought the MFJ259, the new one with the impedence meter. The price was
far better than the AEA, but I have no comparison... The MFJ is easy to
use and seems accurate but as Arlan states it has a BIG drift problem. I
just sent my new one back to MFJ because one of the LCD numbers had erratic
segments on it....... MFJ should be able to clear up the problem
with the segments/number, but what about the seemingly rapid downward drift?
Does it matter if it screams downward at a few Hz/sec? I don't know. If at
any time I take a reading when first turned on it agrees with the readout on
my TS440, it should be close enough for me.
The board inside says Optoelectronics. The board on the MFJ 249 also said
Optoelectronics..... Does anyone have one of the Optoelectronic Freq Ctrs?
Do they drift that fast or is it just with the MFJ/Opto counters??? If so,
are there drift differences between the few different models Opto produces?
Bottom line, I would like to see the drift corrected, but I can live with it
for my purposes. Knowing what I know now, would I buy another? Probably not.
I would check out the accuracy/drift of the AEA, and if acceptable, buy it.
--
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\ Bill Splaine E-MAIL > bsplaine@sr.hp.com /
/ ALL STANDARD DISCLAIMERS APPLY PACKET > N6GHG@KC6PJW \
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
------------------------------
Date: Tue, 7 Jun 1994 12:49:49 GMT
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!library.ucla.edu!csulb.edu!csus.edu!netcom.com!rogjd@network.ucsd.edu
Subject: TS-850 transmit coverage
To: ham-equip@ucsd.edu
Jeff Kilgore (kilgore@wichita.tivoli.com) wrote:
: Does anyone know how to modify the Kenwood TS-850S for general-coverage transmit? I would
: like to use it with a 6-meter transverter that uses a 20-meter IF, and I would like to be
: able to cover more than just the lower 450 kHz of the 6-meter band.
One of the ham FTP sites has a thread on the 850 which covers this. I
believe that the QRZ CDROM also does. If I can find it I'll e-mail it to
you.
You might look around using Jughead.
73
--
rogjd@netcom.com
Glendale, CA
AB6WR
------------------------------
Date: Tue, 7 Jun 1994 12:44:02 GMT
From: ihnp4.ucsd.edu!usc!cs.utexas.edu!convex!news.duke.edu!MathWorks.Com!mv!chillon!neidorff@network.ucsd.edu
Subject: Wanted: Fluke 8600 DMM Diagram/Manual
To: ham-equip@ucsd.edu
I have a 1975 vintage small bench digital multimeter made by Fluke.
It is their model 8600. The analog circuitry (A/D converter) seems
to have lost its brain. It always displays full scale.
This would be much easier to fix with a schematic diagram. Does
anyone have one to loan, copy, FAX, scan, or otherwise help me?
I'll cover nominal costs (copying, mailing, etc).
Please reply directly to me any of the ways listed below.
Thanks for your assistance.
--
Bob Neidorff; Unitrode I. C. Corp. | Internet: neidorff@uicc.com
7 Continental Blvd. | Voice : (US) 603-429-8541
Merrimack, NH 03054-0399 USA | FAX : (US) 603-424-3460
------------------------------
Date: Tue, 7 Jun 1994 14:33:41 GMT
From: ihnp4.ucsd.edu!swrinde!emory!rsiatl!ke4zv!gary@network.ucsd.edu
To: ham-equip@ucsd.edu
References <2sl5aj$oi6@nkosi.well.com>, <Cqvq82.579@vectorbd.com>, <1994Jun7.050835.22194@kd4nc.uucp>│ⁿ
Reply-To : gary@ke4zv.UUCP (Gary Coffman)
Subject : Re: Military Radios
In article <1994Jun7.050835.22194@kd4nc.uucp> n4tii@kd4nc.uucp (John Reed) writes:
>
>(Oh, I did pick up a URR-52A 30-1000 mhz allmode receiver...any advise on
>using this to get TV video???I output the video to a monitor, and I can get
>a picture, but it is 'crooked' black and white, and looked inverse too..
Well of course it does, John. NTSC video is transmitted positive sync,
IE peak amplitude is sync tip, black is 62.5% modulation, and white is
12.5% modulation. You need to invert the signal, a single common emitter
class A stage does nicely, and you need to do DC restoration via either
a sync tip or back porch clamp circuit. (If you don't want to build these,
they're in ordinary TV sets. All you have to do is put a switch at demod
out of the TV and a jack on the back so you can insert your demod video
into the TV instead of the TV's demod video. The inversion and clamping
are already there for you in the TV's initial video stages. Monitor_in
jacks on TVs use a point beyond the inversion and clamp circuit since they
expect the "in house" negative sync used by VCRs, cameras, etc rather than
the positive sync "off air" signal.)
Gary
--
Gary Coffman KE4ZV | You make it, | gatech!wa4mei!ke4zv!gary
Destructive Testing Systems | we break it. | uunet!rsiatl!ke4zv!gary
534 Shannon Way | Guaranteed! | emory!kd4nc!ke4zv!gary
Lawrenceville, GA 30244 | |
------------------------------
Date: 7 Jun 94 20:09:38 GMT
From: dog.ee.lbl.gov!ihnp4.ucsd.edu!swrinde!gatech!kd4nc!n4tii@ucbvax.berkeley.edu
To: ham-equip@ucsd.edu
References <Cqvq82.579@vectorbd.com>, <1994Jun7.050835.22194@kd4nc.uucp>, <1994Jun7.143341.27834@ke4zv.atl.ga.us>
Subject : Re: Military Radios
gary@ke4zv.atl.ga.us (Gary Coffman) writes:
>In article <1994Jun7.050835.22194@kd4nc.uucp> n4tii@kd4nc.uucp (John Reed) writes:
>>
>>(Oh, I did pick up a URR-52A 30-1000 mhz allmode receiver...any advise on
>>using this to get TV video???I output the video to a monitor, and I can get
>>a picture, but it is 'crooked' black and white, and looked inverse too..
>Well of course it does, John. NTSC video is transmitted positive sync,
>IE peak amplitude is sync tip, black is 62.5% modulation, and white is
>12.5% modulation. You need to invert the signal, a single common emitter
>class A stage does nicely, and you need to do DC restoration via either
>a sync tip or back porch clamp circuit. (If you don't want to build these,
>they're in ordinary TV sets. All you have to do is put a switch at demod
>out of the TV and a jack on the back so you can insert your demod video
>into the TV instead of the TV's demod video. The inversion and clamping
>are already there for you in the TV's initial video stages. Monitor_in
>jacks on TVs use a point beyond the inversion and clamp circuit since they
>expect the "in house" negative sync used by VCRs, cameras, etc rather than
>the positive sync "off air" signal.)
>Gary
>--
>Gary Coffman KE4ZV | You make it, | gatech!wa4mei!ke4zv!gary
>Destructive Testing Systems | we break it. | uunet!rsiatl!ke4zv!gary
>534 Shannon Way | Guaranteed! | emory!kd4nc!ke4zv!gary
>Lawrenceville, GA 30244 | |
I am confused...I don't have an EE , so talk a little 'stupid' to me!(grin)
OK..are you familiar with this military receiver? To get any kind of TV signal,
I change the IF on it to 2000khz, and put it in AM mode, tune to a signal,
(a la 497 something - channel 17 wtbs). the rig has a bnc jack labeled 'video
output' .. i run this to a composite IN on my monitor of the computer, and
I get an inverted black and white picture that is all bent ... looks like those
INDEGESTION commercials of the early '80's...
Tell me what must be done to get NTSC video out of that port on the back.
John
(you can follow up by email to the address in the sig...leave me email with
a phone number to call...it is toll free for me to call into atlanta!))
--
John Reed - Gainesville, GA | Internet: n4tii%kd4nc.uucp@gatech.edu
N4TII - AFA2FH - Redstar 204 | Packet : n4tii@n4hdw.ga.usa.noam
"That which can make you can also break you." - Mr. Rhythm's Good Advice
------------------------------
Date: (null)
From: (null)
Mike, K0TER
------------------------------
End of Ham-Equip Digest V94 #179
******************************