Indeed! There are millions of miles of aluminum shield CCS (copper-clad steel center conductor) RG-6 and millions of F connectors installed at VHF frequencies on CATV systems all over the USA. And th
This is precisely my observation, using those same cores on my 580' bi-directional Beverage antenna transformers. 73 material works very well indeed from 150 kHz to 30 MHz. Rarely, my Beverages even
Perfect! This is exactly what I've been looking for! It's Mouser P/N 161-9126. I looked through the catalog before, but overlooked it because the F connectors are not all in one place. And searching
Hello Herb, To me, this sounds like a termination problem. If the termination is missing (or defective), there will be standing waves on the Beverage and at certain frequencies it will act like a sho
You can't beat Barry's 'front end saver' at http://n1eu.com for a combination of simplicity and effectiveness. Two back-to-back diode strings (four 1N914 diodes per string) and a series 22 ohm resist
Jim, Null steering is usually only useful for local RFI and not signals arriving via sky wave. Most of your other questions are answered at http://www.w0btu.com/Beverage_antennas.html. 73, Mike www.w
Go to http://www.w0btu.com/Beverage_antennas.html#Beverage_Antenna_Transformers and page down a couple of times. Photos and complete information on the Beverage transformer enclosures that work great
The value of a Beverage termination resistor has nothing to do with the length of a Beverage. Its resistance should be equal to the sum of the surge impedance of the wire to ground plus the value of
There is a helpful thread discussing this very subject at http://www.eham.net/ehamforum/smf/index.php/topic,78887.msg554442.html. Are these towers your 160 transmitting antennas? You want to get the
Not to worry. Your Beverage will work fine, as long as you feed it, etc. properly. They are not critical. It has well and often been said that Beverages just "want to work". My NE-SW 580' Beverage cr
I haven't been following this thread real close, but I folded the two 10' high elevated 1/4 radials on my own 3/8 inverted-L --per Guy's suggestion to me a two or three years ago-- as follows: Radial
Nothing wrong at all with doing it like this. The way this Beverage was installed, the fairly deep null off its side was likely pointing at the vertical. However, pointing a Beverage at a TX vertical
Very true. But the 1000' rolls of Commscope RG-6 I bought cheaply off of eBay had a sufficiently thick coating of copper. CATV-type Commscope brand quad aluminum shield RG-6 is all I use here to feed
You're right. But after all, this is the Topband list, and not an upper HF/VHF/UHF list, right? :-) For 160 meters, RG-213/U has zero advantage over RG-6 either for loss or power handling. 73, Mike w
It helps to run a separate receiver. That's about the only way to be 100% certain that you're exactly on the same freq as the other CW station. That's what I often do here. 73, Mike www.w0btu.com ___
I just brought up the site here. http://www.eznec.com. The latest demo version at http://www.eznec.com/demoinfo.htm works fine in Windows 7. You can often get around the segment limit in the demo by
I was thinking of sliding a whole bunch of ferrite beads over the coax feedline right at the end. But I'll take your word for it. This is all very interesting. I'd sure like to try Guy's invention my
Herb, The MFJ-1025/1026 is a great unit, but as Tom Rauch notes on http://www.w8ji.com/mfj-1025_1026.htm, it does not cover the full 360 degree phase range as it ought to. He explains how to fix that
Hi Herb, I wouldn't worry about an S-unit of noise increase, especially on 160. That's bound to happen with any active device like the MFJ-1025; and with the normal BG noise level on 160, I don't thi
I know that some people swear by vents. But I personally have had terrible results venting my Beverage antenna control enclosures. The enclosed relay has froze up more than once from condensation, ca