Bought the circuit board for the KD9SV 160 Meter preamp from FAR and had them send me a copy of the October 1989 Ham Radio article on same. Unfortunately, the copy of page 48 of the article is extrem
I've located a source for NTE455 transistors (replacement for the 3SK88 used in the preamp) and should have a limited quantity of them in my hands shortly. I'll sell off what I don't need myself. If
I spent a lot of time last year fighting a very loud ticking noise from a nearby electric fence. The noise was a sharp pulse every second, and I could not pinpoint the direction. When I was finally a
The signal levels from EU around 0500 this morning were the strongest I've EVER heard in NC. DF2PY at 0542 was driving the S-meter on my IC-765 to 10 over S9 and sounded like an east coast station he
I run the audio from my IC-765 through a Timewave DSP-599zx and then through an Autek QF-1A audio filter. I've found the DSP noise reduction to be rarely worth the trouble, but there have been a coup
I attended the Charlotte hamfest today, and had a chance to look over the Orion prototype and twist the knobs. I really would like to buy a Ten-Tec rig (for the serviceability aspect), and I have no
I am just finishing up my first season with the K9AY loop - no other directional antennas on the low bands. I erected two loops at right angles, and use a Vactrol device to vary the termination resis
I've received several emails about a source for the Vactrol device I mentioned for the termination resistance in the K9AY loops. I used the VTL5C4 device ( as shown in all the related websites), whic
I have an MFJ1026, but not currently using it on 160. I found it to be very effective on highly localized noise sources. For example, my RCA TV has a very noisy power supply (which is ALWAYS on) and
I was able to get my new K9AY loops installed and working just before the contest this weekend. I spent quite a bit of time listening on 160, 80, 40, and the AM broadcast band. I used two loops at ri
Well, it's approaching low-band time here in eastern NC as the QRN is beginning to slack off. Now I'm left with listening to what I think is electric fence noise and need to get that resolved soon. W
Thanks to all who responded so quickly. I'm sure the fence owner will be cooperative in finding the problem(s). However, in this area, grass and weeds can grow inches a day in the summertime, so this
Guess I'm going to need a preamp for work with terminated loops this fall. Can anyone point me to a design for a stable preamp? K8AC Floyd Sense - Angier, NC
I'll address only the antenna, you'll have to come up with the ground system. For a number of years, I used a 36 foot freestanding top/bottom loaded vertical on 160 with great success. The antenna ap
A shortened vertical on 160 need not mean very narrow bandwidth. While searching my antenna books for ideas on a new 160 vertical last month, I ran across a Doug DeMaw design called the "W1FB 160 Met
I received a few inquiries on the structure of this antenna after posting some info on it last week. I've scanned the page that shows the drawing and the accompanying text and posted it at this URL:
Paul - you might want to take a look at the Elecraft K2. If you're up to constructing a kit, you might be satisfied with the K2. I'm in my second month of evaluating one in my station, and haven't fo
Here's a link to a site with the KD9SV box - http://www.radiobooks.com/products/fes.htm I use one here, and it works fine with my IC-765 and AL-800H. The Elecraft K2 can't handle the extra switching