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1994-11-14
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Date: Fri, 22 Jul 94 04:30:25 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 #246
To: Ham-Equip
Ham-Equip Digest Fri, 22 Jul 94 Volume 94 : Issue 246
Today's Topics:
[Re] Alinco 180T, F1T ?comments, ?mod
Diff. bet. Amateur and Prof. receivers?
Getting rid of 27MHZ clock interference
Mail Order Radio Outlet
Mobile/Packet VHF rigs: Ongoing Summary...
Roses, Getting Started
Ten-Tec 1208 transverter
Ten Tec Century 21 - What's it worth?
What's a TS-820 Worth?
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: 21 Jul 1994 11:13:10 -0500
From: ihnp4.ucsd.edu!library.ucla.edu!agate!howland.reston.ans.net!cs.utexas.edu!not-for-mail@network.ucsd.edu
Subject: [Re] Alinco 180T, F1T ?comments, ?mod
To: ham-equip@ucsd.edu
I know your frustration in looking for Alinco DJ180T mods. I have
not been able to find any FTP sites either. What I can tell you is
this. A member of our radio club has one and HAS done the mod. I
am not sure where he found out about it though. It seems as though
the proceedure is the same as the one posted for DJ160 Alinco
radios. This involves removing battery, then removing four screws
that hold on the plate the battery attaches to. Now you will see a
loop of colored wire near the button that releases the battery.
(On my DJ180T, the wire is sort of orange colored). You would cut
this wire and tape both ends. Reassemble the radio and reset the
processor. (Turn on while holding function and lamp keys I think)
This allows out of band transmit. I have no idea how far out of band,
but I have heard they will at least work up into the 153 range or so.
As you already know, the DJ180T will receive 130-174 right out of the
box, so maybe it will also transmit in that range? I have no idea if
the mod does anything to extend the receive range beyond 130-174.
If anyone out there knows any mods for the Alinco DJ180T, please post
them! We 180 owners would love to know! (Also, does anyone know of
mods for late model Azden 2m rigs such as the 5000, 6000, or 7000?)
Remember to try these mods at your own risk! I have seen a modified
DJ180T that seems to still work fine, but I haven't had the need or
the courage to cut anything on mine!
73
James Scudder
------------------------------------------------------------------
| |
| James Scudder "What's a HAM anyway?" |
| WB0RPS |
| ae85%nemomus.bitnet@academic.nemostate.edu |
| |
------------------------------------------------------------------
------------------------------
Date: 21 Jul 1994 19:38:21 GMT
From: tymix.Tymnet.COM!sagehen!drawson@uunet.uu.net
Subject: Diff. bet. Amateur and Prof. receivers?
To: ham-equip@ucsd.edu
Geoffrey S. Mendelson (gsmlrn@gsm001.mendelson.com) commented,
> The biggest difference I can see is that ham transceivers have
> filtering to prevent out of band transmission (while transmitting in
> band) and that lowers sensitivity out of ham bands.
Not all good ham transceivers do. Some, perhaps many, ham transceivers
transmit properly outside of the ham bands if their controllers are
configured ("modified") to transmit there. I use a Kenwood TS 940
for USAF MARS. It has switched low-pass output filter networks,
not band-pass networks, to reduce spurious harmonics.
Dick Rawson n6cmj afa6de
------------------------------
Date: 21 Jul 1994 15:48:14 GMT
From: pacbell.com!unet.net.com!mac_dan_cra.net.com!user@ames.arpa
Subject: Getting rid of 27MHZ clock interference
To: ham-equip@ucsd.edu
In article <30f5o7$42p@news.iastate.edu>, porayath@iastate.edu (Rajiv
Porayath) wrote:
! I have a 27MHZ clock signal connected to a PC card. The problem is that
! the ground plane of the PC card shows a 20millivolt signal which wrecks
! other amplifier circuits on the board. I am using a coaxial cable. Any
! clue as to how I can keep the ground plane clean.
Rajiv,
To help you I would need more information. But at a minimum, you need to
have good decoupling caps installed on the PCB. The most common problem
with ground noise is "ground loops" or the total ground return path.
Thinkl of the decoupling caps as your local power supply, and keep your
current path short. Also, are you using a groundplane? Is the xtal flush
mounted or in a socket, ( if in a socket, try removing the socket.) There
are a few good books out there that will help you, one that you might get
is from the ARRL, "Radio Frequency Interference: How to Find It and Fix
It".
"73" Dana Craig, Senior EMC Engineer
------------------------------
Date: Wed, 20 Jul 1994 17:56:00 GMT
From: paperboy.ids.net!chowda!ronald.bouthillier@uunet.uu.net
Subject: Mail Order Radio Outlet
To: ham-equip@ucsd.edu
AD>I'm looking for a mail order house that carries handheld transceivers
AD>for business/security use, especially for coverage of a wide area. If
AD>anyone has a phone number and/or address, I would greatly appreciate
AD>it. THanks.
AD>BTW: As I currently do not have access to e-mail, please post all
AD>responses to this newsgroup. Thanks.
AD> --Adam
New England Mobile in Bellingham, Ma. is the largest one here and carrys
over 17 brands of radios from HF to 900Mhz Mobiles, Portables, Repeater,
anything you want, and they also make systems for you. They work with
many Police Depts. here.
508 966 4155 Ask for Ron
* SLMR 2.1a * Unable to locate Coffee -- Operator Halted!
------------------------------
Date: 21 Jul 1994 14:46:31 GMT
From: newsgate.watson.ibm.com!watnews.watson.ibm.com!vinod@uunet.uu.net
Subject: Mobile/Packet VHF rigs: Ongoing Summary...
To: ham-equip@ucsd.edu
In article <Ct9EIv.5vL@serval.net.wsu.edu>, kjones@eecs.wsu.edu (Kent Jones) writes:
|>
|> o Micor
|> o GE Exec II
|>
This, and the previous post by about deciphering motorola units
wants me to add my vote for more info about the above radios. I
do see at least couple of vendors at every hamfest with a ton of
motoral gear, but I don't go near because I don't know what to
look for. I would like to get a cheap VHF radio for home use,
for packet and the local repeaters. This needs only few channels
-- two for packet, and atmost another four for the repeaters I
around the area. Actually, I could even get a separate radios for
packet and the repeaters, and maybe even one for UHF, before I hit
the price of a dual band mobile, in this price range, if only
I knew what to look for. So, could someone knowledgable about the above
radios post some details? It will be much appreciated..
--vinod
email: vinod@watson.ibm.com
------------------------------
Date: Thu, 21 Jul 94 08:08:39 EDT
From: dockmaster.phantom.com!rickie@uunet.uu.net
Subject: Roses, Getting Started
To: ham-equip@ucsd.edu
Hi, Please reply via email as my system doesn't offer this Newsgroup.
I will like to start a Rose Bed but don't know what I need or where
to find the seeds or buds to get started. Please help me out.
Rickie.
thanks in advance
------------------------------
Date: Thu, 21 Jul 1994 13:57:33 GMT
From: ihnp4.ucsd.edu!agate!spool.mu.edu!cass.ma02.bull.com!claude!zds-oem!news@network.ucsd.edu (Reid Simmons - r.simmons@zds.com)
Subject: Ten-Tec 1208 transverter
To: ham-equip@ucsd.edu
In article <hO4wi-l.brunelli_pc@delphi.com> brunelli_pc@delphi.com writes:
>Paul (Cliffy) Palmer <palmer@Trade-Zone.msfc.nasa.gov> writes:
>
>>>Modern Japanese radio equipment, with the possible exception of Kenwood,
>>>is of high quality construction and sophisticated design. Most TenTec
>>>equipment is by comparison crude, though with workmanlike performance.
>>>One reason people brag about TenTec service is because they *need*
>>>TenTec service. Most Japanese equipment doesn't break during the life
>>>of the product. This is mostly due to more automated assembly/testing,
>>>and better internal cabling systems.
>
>This is a frantic attempt to regain conifidence in
>a hasty decision to by a japanese rig! The TT rigs
>that i have experience with hear better, sound better
>and work better that an equivalent ken or yaesu, and
>when i call TT for some info, i get info! not a
>request to SHIP my rig!
>
>I would love to see a validation of this comment about
>japanese equipment never failing.
>
>MHO, n1qdq
I HAPPILY purged my station of all "JAP JUNQUE" about
two and a half years ago when I ordered my TEN-TEC
OMNI VI. I have had a LOT of JAP stuff over the last
20 of my 33 years as a ham. (Actually I still have an
ICOM 211 - not working of course - that I am still trying
to unload).
I describe my JAP stuff using the "F.O.R.D." terminology
(Fix Or Repair Daily). I had the least troubles with Kenwood,
and the most with Icom. Yahoos were somewhere in between.
The TEN-TEC has been trouble free and a REAL GOOD performer.
I have also ordered the 1208 six meter transverter kit.
NZ8K
------------------------------
Date: Thu, 21 Jul 1994 11:59:07 GMT
From: ihnp4.ucsd.edu!sdd.hp.com!spool.mu.edu!darwin.sura.net!gatekeeper.es.dupont.com!esds01.es.dupont.com!GRIB%esvx17.es.dupont.com@network.ucsd.edu
Subject: Ten Tec Century 21 - What's it worth?
To: ham-equip@ucsd.edu
In article <30jp7i$ceg@nic.smsu.edu>, rgb865f@cnas.smsu.edu (Richard Belshoff) writes:
>I have a Ten Tec Century 21 CW transceiver that I want to sell
>at a Hamfest in Springfield Missouri in early August.
>How much should I ask for it? (stuff deleted)
> Richard Belshoff rgb865f@cnas.smsu.edu
Richard,
I just bought one with the calibrator and keyer for $195. Figuring that the
keyer and calibrator are worth about $25 ea, you can figure about $125-150 for
the rig. Since you're at a hamfest, I'd start at $175-200 and come down if you
find someone really interested.
73,
Joe
------------------------------
Date: 21 Jul 1994 16:47:51 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!torn!news.unb.ca!jupiter.sun.csd.unb.ca!lewcobb@network.ucsd.edu
Subject: What's a TS-820 Worth?
To: ham-equip@ucsd.edu
Hello and thanks for reading this post. My father and I have been out of
the amateur radio hobby for years but we have a kenwood TS-820 at home
with the antenna tuner accessory that could be better used by someone else
and the money better used by me as I am constructing a new house :)
Doe anyone know what such a piece of equipment would be worth as a
used item for sale?
Thanks very much for any help people can provide.
Lewis
lewcobb@unb.ca
------------------------------
End of Ham-Equip Digest V94 #246
******************************