Hi Gang, A Slightly related question to this reflector as all of you have antennas on towers. ;>) Several years ago I purchased some of the little plastic element insulator buttons and metal washer f
They were the same kind used in the K1FO series of antennas. Someone just mentioned M2 and DEMI as possible sources. Michael Baker K7DD k7dd@cox.net Are they the same as the ones used by M2?? WB2WIK
Hustler makes a 30 meter trap add on kit for the xBTV series of trap verticals that is reasonable. Michael Baker K7DD k7dd@cox.net Is their anyone building and selling traps these days? I would like
Hello Kelley and the group, Having owned one of these in all of their variant and currently owning a well used and rebuilt 7BTV (6BTV with 17 meter add on kit) I have a few suggestions. Make up a len
This can be a problem depending where you live because of corrosives in the air, and exposure to them. When I took mine down for service after several years to replace the trap covers and give it the
If you need to drill that many holes, get the best bit you can afford and a sharpener and keep the bit sharp. Drill about 15 to 20 holes and resharpen. Drill Doctor is ok and reasonably priced. Micha
Try SurplusCoax.com The web page is screwed up at the moment but his phone likely still works. I know of some folks who have delt with him in the past without incident and were happy with their purch
Hello Martin, One sure way to break any common connection to the other elements is to use a line isolator/ 1:1 in line with each elements feed line. There is NO common ground connection at that point
Relocation is also not always practical nor is it inexpensive. Professional Electricians don't come cheap and moving an underground service entrance is very involved and sometimes simply can't be don
I would guess it's because in the beginning our bands started below 200Meters and horizontal antennas became the norm due to their reflective gain and sheer size. Picture a 200 Meter vertical antenna
Generally, 3/4 to 2 RPM is the range. The slower speed is for BIG HEAVY antennas so you have less torque to deal with. Most commercial rotors are about 1 RPM. If you are making one with a two speed s
Hey Roger, A couple of thoughts came to mind. Look for a metals recycler in the area. If they have a separate area for steel and aluminum then they might have used steel pipe. Another source (not nec
How about using the Giant Clamp on Beads made my Fair-Rite? Clamp one or more on each leg and the descending cables. Not cheap but it should work. Michael Baker K7DD k7dd@cox.net --Original Message--
OK, well that raises another question. If a clamp on bead works with a single cable and a single turn, why doesn't it work with a Tower? Granted, on zig zag reinforcing on the tower, they would also
Hi Dick, Don't think in terms of SWR. Think Rs with no Xs. Which means the wire is too long. It is basically resonant at 1770. Not too unusual to see impedances in the 16 ohm range with shortened ant
I gather you asked about a form release. Petroleum naptha is a great release and won't attack the cement. Paste floor wax works very well especially for a one time use and is likely cheaper than the
I am looking for an assembly instruction set or some data about the RaiBeam antennas for educational purposes. Thanks... Michael Baker K7DD k7dd@cox.net ______________________________________________
Hi Guys, I concur with the disassemble, clean, lube, reassemble list and keeping the drain holes pointed down. I have used both Penetrox and Bencher's Butter-its-not between conductors and where stai
Why wouldn't 60/40 Rosin Core Solder work outside? That's news to me and I have used it forever on any electrical connection inside or outside without any problems. What did I miss? Mike Baker K7DD K
OK, I guess that makes sense. However, I live in Arizona where DRY is the norm so perhaps it isn't as much of a problem here. FWIW, I haven't had to solder anything for outside use in quite a while a