On Wed, 10 Jan 2007 18:27:03 -0800, Richard \(Rick\) Karlquist wrote: That's what I would expect. Mine are pretty high (as a fraction of a wavelength) on 40, about right on 160. Jim _________________
I had the same concerns. Although my Beverages are not buried, both of them run into the side of a hill, and both cross fairly deep ravines (70 ft or so of down and up in lengths of 500 ft and 600 ft
Resistivity varies widely from one ferrite material to another. Some are such good insulators that Fair-Rite uses bare wire to wind coils through them (they call them Wound Beads), while others are h
The definitive treatment of this is by Rudy Severns, N6LF. He answers EXACTLY your question. It is now part of the ARRL Antenna Book, and this section alone is worth the price of that book plus whate
I'm near Santa Cruz on 8.5 acres with vertical, a dipole, and Beverages (one aimed at EU), and the only signal I've EVER heard from EU is DL2PY. He was there again last night around 9 pm PST, and som
One of the obligations that goes with being "a big gun" is keeping the barrel clean. I operated the first night of ARRL 160 with a new Beverage setup (finished that morning) that somehow made my sign
I have done exactly that at an old AT&T long lines site near Sacramento. It is a loaded half wave that is about 170 ft long, and it DOES work very well. Expect gain on the order of 3 dB in the direct
The advantage to that particular cable is that it stands up particularly well to the elements (and small rodents). Other than that, there's nothing special about it -- any decent coax with good mecha
Study the ARRL Antenna Book on the topic of "Ground." An EARTH connection does NOTHING for an antenna system. What you need is WIRE to return the antenna current, in the form of radials or a counterp
I would ignore that advice. He's got open fields, and you don't, so use what you have. My two reversible Beverages run through a redwood forest with rather irregular terrain (+/- 75 ft elevation chan
"running" I have two transmit antennas for 160 -- a vertical, and a dipole at 90 ft. The vertical is by far the most effective within a few hours of sunrise or sunset. My default RX is whichever of t
Your explanation is solid on all counts, and I'm sure you're right as far as that goes. BUT: What I'm talking about is different -- the propagation is there, west coast signals ARE above the noise an
Charles, Rigs like the FT857 are designed for VERY casual use, like something to have in the car and work all bands, or as a first all band rig. They are poor choices for serious hamming (like pullin
You're right -- virtually any 50 ohm or 75 ohm cable WILL work electrically, so it's simply a matter of finding coax that you can easily buy and that is sufficiently robust to withstand your environe
When you use a ferrite to wind a transformer, you want LOW loss. When you use a ferrite for suppression of RFI, you want HIGH loss. The Fair-Rite catalog is listing this as a suppression part, and 25
Not true. The loss component is of far greater use. Consider a suppressor on a wire shorter than a quarter wave. The choke and the line are a series circuit, and the line will be capacitive. An indu
Not in this case -- the +/- reactance conditions in the first half wavelength illustrates the principle. Of course it repeats, and if you read the tutorial you'll see that. But I'm not teaching trans
It all depends on your objective. If it's bragging rights, verification is important to some people. I play radio for my own enjoyment. Yes, it makes me feel good that my antennas and operating skill
Remi is often fairly loud here in Santa Cruz for more than a few minutes, but it seems that his receive conditions (perhaps QRN) are not nearly as good as his transmitting system. My QTH (5 miles dow
I disagree. Matching is trivial. My concern is the pattern. I would expect to see little change in the lobes, but significant degradation of the nulls. Maybe you don't care about the nulls, but I've