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INFO-HAMS Digest Fri, 27 Oct 89 Volume 89 : Issue 813
Today's Topics:
Aircraft headsets
Info on KENWOOD TR-2600 A needed!!!
Interesting Snippets
Neutralizing Heathkit Finals (6146/A/B woes)
Thanks, Goodyear! (And how to monitor the blimp)
Wondering about 455 kHz
----------------------------------------------------------------------
Date: 25 Oct 89 19:21:00 GMT
From: gem.mps.ohio-state.edu!wuarchive!uwm.edu!mailrus!jarvis.csri.toronto.edu!torsqnt!tmsoft!masnet!canremote!bruce.chapman@tut.cis.ohio-state.edu (BRUCE CHAPMAN)
Subject: Aircraft headsets
Icom makes an adapter to use David Clark headsets with their VHF and
UHF handheld radios, that works very well.
---
~ EZ-Reader 1.13 ~ I know that I should have read the DOC'S
* RNet 1.01: CanConfMail: Sasquatch PCBoard, Terrace, B.C.
------------------------------
Date: 27 Oct 89 15:02:56 GMT
From: tank!eecae!cps3xx!usenet@handies.ucar.edu (Usenet file owner)
Subject: Info on KENWOOD TR-2600 A needed!!!
In article <6866@viscous.sco.COM> stevebe@sco.COM (Steve Beecher) writes:
> I have a Kenwood TR-2600 A that I have a couple of questions about.
>First of all, I was wondering how to use the Telephone Autopatch system
>for business and/or personal use, i.e. extra licences needed, who I need
<Flame thrower on>
You are probably not a licensed amateur radio operator, asking a
question like that. Business use of any amateur radio frequency is
absolutely forbidden. You need an AMATEUR radio license to transmit in
the amateur frequency bands. No other license is good enough.
<Flame thrower off>
>to contact, how to operate it on my unit, where to find out the frequencies,
>etc. Is the TU-35B tone unit needed for this? Do I need to buy one, or is
>it something different entirely. Secondly, I would like to know if there
>are any mod.s available to increase the scan speed of the TR-2600 A. It
>is very slow as is stands. Anyone with answers to either of these questions
>I would appreciate email to me. Thanks!!!!
> E-mail: ...!uunet!sco!stevebe stevebe@sco.COM
Get an amateur radio license first. For now, just listen. You aren't
allowed to transmit. If you need to use radio for your business, get a
GMRS license, or a license for some other business band, or a cellular
phone.
In the rare case that original ideas Kenneth J. Hendrickson N8DGN
are found here, I am responsible. Owen W328, E. Lansing, MI 48825
Internet: hendrick@frith.egr.msu.edu UUCP: ...!uunet!frith!hendrick
------------------------------
Date: Fri, 27 Oct 89 08:15:57 EDT
From: pescatore_jt%ncsd%gte.com@RELAY.CS.NET
Subject: Interesting Snippets
From: NCSD::PESCATORE_JT 27-OCT-1989 08:04
HILL INTEREST REVS
TO FREE SPECTRUM
STATUS: House subcommittee chairman Ed Markey has reiterated his
commitment to legislation to free 200 MHz of spectrum held for the
government so that the FCC can use it to promote innovative
radio-transmitted communications.
The first in a series of hearings on the bill, known as the Emerging
Telecommunications Technologies Act, is scheduled for Nov. 1.
Government witnesses will be asked to testify on the feasibility of
the legislation. Anticipated witnesses include the present head of
the National Telecommunications and Information Administration (NTIA)
Janice Obuchowski, FCC Chairman Al Sikes and several former agency
heads, such as Bernie Wunder, Henry Geller and David Markey.
Al Sikes, formerly head of NTIA, referred to H.R. 2965 in an industry
address touting innovation in common carrier technologies as a way of
expanding spectrum for commercial services. Although Sikes has not
formally endorsed the legislation, he did note his attempts when
heading NTIA to discover ways government spectrum could be converted
to commercial use.
THE WALL STREET JOURNAL, 10/25.
MIND WHAT YOU SAY; THEY'RE LISTENING, p.B1.
"...Eavesdropping -- both corporate and private -- is on the rise, thanks to
the proliferation of surveillance technologies. And while sellers of the
equipment and companies 'monitoring' employees have few qualms,
right-to-privacy advocates and some lawmakers are alarmed. 'New technologies
are changing the way we deal with each other and the way we work,' says
Janlori Goldman, a staff attorney at the American Civil Liberties Union. 'Our
expectation of confidentiality is being eroded.'"
AT&T INTRODUCES OPTICAL SYSTEMS FOR SENDING DATA, p.B5.
"New York-American Telephone & Telegraph Co. unveiled new optical transmission
systems for data, video and voice communications. Two products in what the
telecommunications giant called a new generation of such equipment are
available now, AT&T said, and three others will be introduced in 1990 and
1991."
USA TODAY, 10/26.
SOVIET PHONE SERVICE IS A HANGUP, p.2B.
One of the more frustrating obstacles to smooth business dealings between U.S.
and Soviet managers may turn out to be the telephone. The San Francisco
earthquake showed just how bad communications can be between the two
countries. At the USA-89 trade show in Moscow on Oct. 18, word of the Oct. 17
earthquake rumbled through the 140 booths set up by U.S. companies. No other
news was available, so at 2 p.m. General Electric's booth hooked up a live
satellite link to the GE-owned NBC-TV network and put Today on two television
sets. Exhibitors crowded around the TVs, talking of friends or relatives in
San Francisco and groaning that Soviet operators said they couldn't get a line
out to the USA until 3 a.m."
------------------------------
Date: Fri, 27 Oct 89 08:42:35 EST
From: bill gunshannon <702WFG%SCRVMSYS.BITNET@CORNELLC.cit.cornell.edu>
Subject: Neutralizing Heathkit Finals (6146/A/B woes)
What's wrong with doing it the way the instruction book says???
I have used mine with 6146/A/B/W and never had a problem.
The W's were so I could run RTTY with real long keydown. I was a MARS
operator in a remote part of Northern Germany and at Christmas time our
nets ran from about 5PM til about 3AM. I usually spent the last hour
or two sending all the accumulated traffic to the gateway station in
Pirmasens. Keydown periods longer than an hour were not uncommon.
And the only mod I ever had to make was to mount a muffin fan on top
of the radio to blow air over the finals.
Hearing about 101's again is kinda nostalgic. Maybe I should dig it
out and give it to my daughter when she finishes here NOVICE course.
KB3YV
bill gunshannon
702WFG@SCRVMSYS.BITNET
------------------------------
Date: 26 Oct 89 18:13:21 GMT
From: hpda!hpcupt1!bmp@ucbvax.Berkeley.EDU (Brian M. Perkin)
Subject: Thanks, Goodyear! (And how to monitor the blimp)
Try Oakland Airport North Field.
------------------------------
Date: 27 Oct 89 14:55:57 GMT
From: pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!gem.mps.ohio-state.edu!uwm.edu!ux1.cso.uiuc.edu!tank!eecae!cps3xx!usenet@tut.cis.ohio-state.edu (Usenet file owner)
Subject: Wondering about 455 kHz
Jim.Grubs@f1.n234.z1.fidonet.org (Jim Grubs) writes:
> > From: jpb@ATHENA.MIT.EDU
> > Does anyone out there know how 455 kHz got to be such a popular IF ?
> > Why 455, (as opposed to 450 or 500, e.g.)?
>So broadcast band images would not fall inside the band.
Lets see now. If the LO is above the frequency to be received, and we
are listing to 540 kHz, the LO must be at 540 + 455 = 995 kHz.
Therefore the image to be worried about is 995 + 455 = 1450 kHz. That's
in the BC band. If the LO is below the frequency to be received, and we
are listing to 1600 kHz, the LO must be at 1600 - 455 = 1145 kHz.
Therefore the image to be worried about is 1145 - 455 = 690 kHz.
It seems to me that for quite a significant range of frequencies, the
image _will_ fall inside the AM BC band. I doubt that's the reason that
455 was chosen.
In the rare case that original ideas Kenneth J. Hendrickson N8DGN
are found here, I am responsible. Owen W328, E. Lansing, MI 48825
Internet: hendrick@frith.egr.msu.edu UUCP: ...!uunet!frith!hendrick
------------------------------
End of INFO-HAMS Digest V89 Issue #813
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