When stacking antennas, IDENTICAL is the operative word, for the antennas, feedlines, and baluns. The time delay through the system will affect the stack phasing. You should convert the lower antenna
Barry, Your post implies that the two Beverages will terminate nearby each other if you can switch the hiZ side of them. That also implies that a relay-box may be required. Both of these situations o
Yikes....I thought I'd better add a "*" to Larry's posting. Be sure you DO NOT USE foam dialectric coax for this purpose. A property known as "cold flow" may (and probably will) occur whereby the foa
I use HiGain BN-4000 Baluns on my stacked pair of 40-2CDs. Easy to attach, polarity easily matched, works with high power, works fine. I also use the BN-4000 on most, but not all, of my HiGain monoba
Mike and TT's: The ARRL Handbook has a table of this info. No, research on the way to wind these coils has shown that it's better to wind them randomly, not side-by-side. That provides trhe max Q. Th
A Slinky Beverage (Beverage is capitalized since it's a person's last name) is nothing more than a few (eight works ok) metal Slinky's soldered together, supported by a non-conducting rope inside the
Tom, You don't tell us your location (City, State), which could help determine the nature of the problem. For example, you may know that the UHF channels have now been allocated to Digital TV and are
I can't help with ques #1, but for question #2> Throwaway the aluminum mast. Don't use it. The only aluminum on a tower should be the antennas and associated mounting plates but, no masts. Especially
Mike, it sounds like, from your posting, what you are about to do is not conducive to good PacketCluster (tm) operating procedure and may cause you and others lots of trouble. You mention "local pack
The size of the 118,000 psi yield strength chromolly mast I posted is: 2 inch O.D. x 3/16 inch tk wall. I use an 18 foot length for my mast. It weighs about 80 - 90 pounds (I don't know exactly, but
Thanks for the calculations. Sounds like my guess from memory was pretty close, considering I bought that mast in 1991 and installed it in November, 1994!! No, it's not galvanized. Bought it at the D
I described such a procedure about 1 week ago on this reflector. I use the AEA RF Analyst and cut the lengths using the Return Loss measurement feature. Works fine. If you can't find it in the archiv
See comments embedded: Humm, not familiar with that mode. Does the AEA RF-1 have such a mode? Not sure what a "package deal" is. But I am pruning in parallel with a perfect load (a Weinchel 50 Ohm lo
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--828E295E51F69B3C70329B11 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Well, I wasn't going to coment on this thread, until this message. Be careful with the advise bel
YES THEY DO!! Barry, I just bought a Ford Expedition and it does have a trunk lip/lid mounting location. The rear door of the Expedition allows for raising it vertically, like a trunk, or opening jus
Waste of time! What would you be protecting the concrete from? Concrete floor paint makes the concrete look pretty, makes it easy to wipe up spills and ensures that the porus concrete doesn't stain w
Bruce, Seems we're talking about apples and oranges. There is a typo in my post. Should be: "In addition, you shouldn't bury the base [not "legs"] anyway." I meant of course, the concrete base. You q
You can easily model this situation. These distances are VERY close. And if your SWR is affected by adding another antenna, you can bet that your pattern is distorted to beat the band. I've done lots
Many mobile radio shops have an instrument that will tell you if the tinted glass is conductive and whether it will effect an on-the-glass installation. As far as vehicle height, THAT's AN ADVANTAGE