Date: Fri, 26 Nov 93 04:30:26 PST
From: Ham-Equip Mailing List and Newsgroup <ham-equip@ucsd.edu>
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Subject: Ham-Equip Digest V93 #113
To: Ham-Equip
Ham-Equip Digest Fri, 26 Nov 93 Volume 93 : Issue 113
Today's Topics:
Alkaline vs Nicad operating time
Ameritron 811
APT interface for PC
CMOS Super Keyer II (2 msgs)
icoms on construction job
Indestructable HTs? (3 msgs)
Type Accepted ham HT'
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policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: Tue, 23 Nov 1993 18:29:48 GMT
From: telesoft!garym@uunet.uu.net
Subject: Alkaline vs Nicad operating time
To: ham-equip@ucsd.edu
In a recent thread there was some discussion about the usefulness of AA packs
with Alkaline batterys for use in HT's. Especially for backup/disaster work,
since Alkalines have a longer shelf life than a charged nicad pack and
operate longer before it has to be replaced/recharged. I can't find the
thread now but I found some interesting info in my FT-470 user manual (a
Yaesu 2M/440 HT) to add tho this.
The book gives a chart of battery charge life under a specified set of
conditions. The interesting thing is the relative life of the Nicad packs,
and AA packs with Alkaline or Manganese batteries. From the chart you can
estimate the milliamp-hour rating of Alkaline and Manganese batteries.
Battery Model Charge Life
------------------ -----------
AA Pack: 6 AA Alkalines 17 hrs (about 2000 mAh)
6 AA Manganese 5.8 hrs (about 700 mAh)
7.2v Ni-Cd Pack (200 mAh) 1.6 hrs
7.2v Ni-Cd Pack (600 mAh) 5 hrs
7.2v Ni-Cd Pack (1000 mAh) 11 hrs
Using their ratings for the various packs (excluding the 1000 mAh pack) we
can estimate that the Manganese batteries have a rating of around 700 mAh
and that the Alkaline batteries have a rating of around 2000 mAh. The
life of their 1000 mAh pack seems too long compared to the other packs.
I would expect these ratings to vary with various brands of Alkaline
batteries. Has anyone done any tests to measure mAh rating of various AA
batteries?
--GaryM
--
Gary Morris KK6YB Internet: garym@alsys.com
San Diego, CA USA Phone: +1 619-457-2700 x128 (work)
------------------------------
Date: 25 Nov 1993 14:46:35 GMT
From: library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!pipex!sunic!ugle.unit.no!stud.unit.no!kenneth@network.ucsd.edu
Subject: Ameritron 811
To: ham-equip@ucsd.edu
Anyone out there having comments on the Ameritron 811 PA,compared to other types ?
thanks in advance.
Kenneth.
------------------------------
Date: Sun, 21 Nov 93 20:53:22 GMT
From: nntp.ucsb.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!pipex!uknet!EU.net!sun4nl!bsoatr!bsdihi!dihi@network.ucsd.edu
Subject: APT interface for PC
To: ham-equip@ucsd.edu
Try using the beautifull JVFAX software (shareware). It is capable of
receiving all kinds of FAX and SSTV modes. I build my interface around
an 741 chip for less than $1 !!!.
I am able to receive all kind of nice WX pictures, and even send and
receive color SSTV!!
The JVFAX software is written by DK7JV, and is downloadable from a
lot of BBS'es.
Have fun!
Dick Hissink PA3DSP
Email:dihi@bsdihi.atr.bso.nl
------------------------------
Date: Thu, 18 Nov 1993 19:59:45 GMT
From: hearst.acc.Virginia.EDU!murdoch!hopper!porter@uunet.uu.net
Subject: CMOS Super Keyer II
To: ham-equip@ucsd.edu
>A friend of mine let me borrow his "CMOS Super Keyer II",
>and I like it very much. Where can I buy one of these?
>
>The feature list sounds identical to the Logikey unit (that
>HRO sells for about $120). Are these the same design? Any
>comments about either of these units?
After I RTFM, I found that the unit I was using was the kit version,
and it *is* identical to Logikey's model K-1.
-------------------------------------------------------------------
Alan Porter work: (804) 978-5764 alan.porter@cho.ge.com
KD4DNU/AA home: (804) 973-ALAN big@catt.ncsu.edu
-------------------------------------------------------------------
------------------------------
Date: Fri, 19 Nov 1993 18:39:14 GMT
From: hearst.acc.Virginia.EDU!murdoch!hopper!porter@uunet.uu.net
Subject: CMOS Super Keyer II
To: ham-equip@ucsd.edu
> After I RTFM, I found that the unit I was using was the kit version,
> and it *is* identical to Logikey's model K-1.
I called Jeffrey Russell (KC0Q), one of the makers of the keyer kit.
He told me that the CMOS Super Keyer II is a kit. The Logikey K-1
is an assembled unit. The Super Keyer can be ordered from Idiom
Press, Box 583, Deerfield IL 60015 for $48 (postage pre-paid).
Why do I feel like I am having a conversation with myself? :-)
-------------------------------------------------------------------
Alan Porter work: (804) 978-5764 alan.porter@cho.ge.com
KD4DNU/AA home: (804) 973-ALAN big@catt.ncsu.edu
-------------------------------------------------------------------
------------------------------
Date: Thu, 25 Nov 93 20:25:56 GMT
From: mnemosyne.cs.du.edu!nyx10!rchalk@uunet.uu.net
Subject: icoms on construction job
To: ham-equip@ucsd.edu
brian.oakley@pubcon.fort-worth.tx.us (BRIAN OAKLEY) writes:
>did you check out which band the icoms were transmitting in? icom makes
>radios that are type accepted for business use, marine use, avation,
>etc. not just ham. fyi 73. wb5kxw
I've seen RS handhelds used by Chaperones at a High-school Band Competition.
I asked about licenses, and they said "What licenses?" I have also heard of
Race Car drivers using them. RS makes no real effort to control this.
------------------------------
Date: Wed, 24 Nov 93 20:12:40 GMT
From: mnemosyne.cs.du.edu!nyx10!dsharp@uunet.uu.net
Subject: Indestructable HTs?
To: ham-equip@ucsd.edu
kharker@bnr.ca (Kenneth E. Harker) writes:
> I am wondering about something... what's the most "indestructable"
>HT available? Is there one that could withstand not just being dropped,
>but being dropped and rolling down a steep, rocky trail? Or being in
>the vest pocket of a ski jacket when you crash and burn and land on top
>of it? Something as rugged as most camping flashlights for example? Are
>there any HTs that are really waterproof? Like if you dropped them in a
>stream or in a bank of wet snow, they would still work? How about an
I have an Icom IC-24AT Dualband HT, I don't know just how indestructable
it might be if I dropped it, but one my cats did knock it into a cooler
of water while it was powered up and monitoring a local repeater. It
did die from the immersion, but I opened it up, dried it out under a fan
for a couple days, reset the CPU, it it worked like new! Says a lot for
the short-protection circuitry Icom puts in there.
ZZ
--
______________________________________________________________________
Dave Sharp, NU8H | "Eagles may soar, but weasels
Dayton, Ohio | don't get sucked into jet engines"
Email: dsharp@nyx.cs.du.edu | -Unknown
------------------------------
Date: 23 Nov 1993 15:40:55 -0600
From: concert!corpgate!crchh327.bnr.ca!kharker@decwrl.dec.com
Subject: Indestructable HTs?
To: ham-equip@ucsd.edu
I am wondering about something... what's the most "indestructable"
HT available? Is there one that could withstand not just being dropped,
but being dropped and rolling down a steep, rocky trail? Or being in
the vest pocket of a ski jacket when you crash and burn and land on top
of it? Something as rugged as most camping flashlights for example? Are
there any HTs that are really waterproof? Like if you dropped them in a
stream or in a bank of wet snow, they would still work? How about an
HT that would operate in temperatures from -10c to 40c?
If this "dream" HT doesn't exist, what's the closest to it? Are
there things that can be done to "ruggedize" existing units?
I'm not a terribly active outdoors type, but I would like to be able
to take an HT along with me on camping or skiing trips and not have to
worry about anything except how much battery life I have...
--
======================================================================
Kenneth E. Harker BNR "Any opinions expressed
kharker@bnr.ca Richardson, Texas, USA are solely mine and do
N1PVB (214) 684-5115 not represent BNR"
======================================================================
------------------------------
Date: Wed, 24 Nov 1993 00:14:02 GMT
From: world!dts@uunet.uu.net
Subject: Indestructable HTs?
To: ham-equip@ucsd.edu
In article <2cu017$f5o@crchh941.bnr.ca> kharker@bnr.ca (Kenneth E. Harker) writes:
>
> I am wondering about something... what's the most "indestructable"
>HT available? Is there one that could withstand not just being dropped,
>but being dropped and rolling down a steep, rocky trail? Or being in
>the vest pocket of a ski jacket when you crash and burn and land on top
>of it? Something as rugged as most camping flashlights for example? Are
>there any HTs that are really waterproof? Like if you dropped them in a
>stream or in a bank of wet snow, they would still work? How about an
>HT that would operate in temperatures from -10c to 40c?
> If this "dream" HT doesn't exist, what's the closest to it? Are
>there things that can be done to "ruggedize" existing units?
> I'm not a terribly active outdoors type, but I would like to be able
>to take an HT along with me on camping or skiing trips and not have to
>worry about anything except how much battery life I have...
The Icom 2GAT is the toughest radio targetted at the ham market that I know
of. Some of the Motorola stuff is likely tougher, but are not directly
settable like a ham HT (i.e. you need a computer to program the commercial
gear).
--
---------------------------------------------------------------
Daniel Senie Internet: dts@world.std.com
Daniel Senie Consulting n1jeb@world.std.com
508-365-5352 Compuserve: 74176,1347
------------------------------
Date: 25 Nov 93 01:42:37 GMT
From: ogicse!cs.uoregon.edu!sgiblab!spool.mu.edu!agate!iat.holonet.net!pubcon.fort-worth.tx@network.ucsd.edu
Subject: Type Accepted ham HT'
To: ham-equip@ucsd.edu
i hesitate to agree with your answer without further qualifications.
the fcc type accepts a radio by testing the radio and what it can and
cannot do. if the radio can cover frequencies including a ham band, and
they give it type acceptance, it is type accepted for its intent. just
because one uses ham frequencies in the radio does not make it non-type
accepted. it is still type accepted for the commercial frequencies it
uses because it meets the criteria the fcc set down for type
acceptance. please enlighten me of you opinion. b. wb5kxw
------------------------------
Date: Mon, 22 Nov 1993 22:41:31 GMT
From: munnari.oz.au!spool.mu.edu!howland.reston.ans.net!cs.utexas.edu!swrinde!dptspd!TAMUTS.TAMU.EDU!TAYLOR.TAMU.EDU!gtaylor@network.ucsd.edu
To: ham-equip@ucsd.edu
References <1993Nov21.110946.330@sfpp.com>, <1993Nov22.163942.23514@ke4zv.atl.ga.us>, <2cr82m$etu@oak.oakland.edu>S
Subject : Re: Best 2m handheld?
Didn't QST do a comparison of 2m handhelds awhile back?
Greg
Greg Taylor, KD4HZ // g-taylor4@tamu.edu // 409-845-4445 // Fax-847-8744
------------------------------
Date: Fri, 19 Nov 1993 16:42:48 GMT
From: dog.ee.lbl.gov!agate!howland.reston.ans.net!vixen.cso.uiuc.edu!newsrelay.iastate.edu!news.iastate.edu!sknapp@network.ucsd.edu
To: ham-equip@ucsd.edu
References <CFoJ0J.973@alsys.com>, <CGpqKs.Gwr@alsys.com>, <CGqnLn.Gpv@news.iastate.edu>s.ias
Subject : Re: Problems with Kenwood TM-742A
In article <CGqnLn.Gpv@news.iastate.edu> jdwhite@iastate.edu (Jason White) writes:
>My advice: ditch the 742A, and if you must buy Kenwood get a 741. If not,
>check out the Yaesu 5100 and 5200. I know of several people who have them and
>I don't hear them bitchin'. :)
You forgot to mention how much better the mounting hardware with the
Yaesu was! :) More flexable, allowed mounting in more strange places.
Both the head unit, and trunk unit are easily removable without tools.
The unit did not require a duplexer, and was smaller. The instructions
for mounting were much better.
If I had the $$$ it would be my mobile rig of choice!
________________________________________________________________________
Steven M. Knapp Computer Engineering Senior
sknapp@iastate.edu Vice President Cyclone Amateur Radio Club
Iowa State University; Ames, IA; USA Durham Center Operations Staff
------------------------------
End of Ham-Equip Digest V93 #113
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