Turning AGC Off Helps Kenwood TS-2000 CW

A ham on the local Sunday Night Tech Net reported a technique that improved the reception of CW measurably.

He has a Kenwood TS-2000 transceiver. As time went by he used various adjustments while listening to CW. He was never quite satisfied with the noise levels that came in along with the desire CW signals. Variables adjusted include the RF Gain and AGC response time.

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43 Foot Vertical and Coax Switches

Furthering the discussion of the 43 foot vertical antenna I wanted to report a concern I have with this antenna and the use of any relay based coax switch.

If you install a 43 foot vertical in your back yard, route the coax through a switch and handle the tuning inside your ham shack, you need to ensure you do not exceed the voltage or current limits of the relays in the switch.

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Heil BM-10 Headset Review


Headsets are an excellent accessory for your amateur radio station. There are so many to choose from it might seem overwhelming to pick one. They come in large sizes to small and work with some radios while not with others. This is a description of the process I used to select my headset in the hopes it will help others decide if, when and which headsets they should consider.

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Low Profile Vertical HF Antenna

With the upcoming solar cycle pushing operations on the HF bands towards success on 20 meters to 10 meters you might be wondering if a vertical antenna may be the right choice for making the most of this time.

Well, to be honest you may well have just as much success with a simple horizontal dipole strung up.

Dipoles are pretty easy to build and don’t cost too much if you would rather purchase one from Alpha-Delta or the Wireman.

However, if you…

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Lightning Protection using Relays

The topic of lightning protection of our radio equipment and everything else in our homes wisely comes up often in the various ham related email lists on the Internet.

A particular thread on one of these lists spoke of ways to disconnect coax, rotator control lines, etc. at or near where they come into the building. One implementation described by some fellow used relays to disconnect things so he could through one switch and instantly isolate his radios from the antennas.

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Young Attracted to PSK31

During Field Day 2008 we carefully observed what operating modes the young teens did and did not enjoy while they operated. Without a doubt the digital modes, especially PSK31, got their attention.

Teenager and a younger boy sharing PSK31 contacts on an HF station.
Teenager and a younger boy sharing PSK31 contacts on an HF station.

The older of the two, KJ4FAJ, in the picture above said this when he made his first PSK31 contact just after midnight during Field Day…

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