Jose': You obviously have two choices: 1. Spend time and effort improving your Ls performance and never hear 8Q7 again or 2. Enjoy your wide bandwidth. You have apparently done everything right, from
TT: I just received in the mail five (5) transmitting variable caps that I <won> on that www thing. They all have plate spacing of 7/32 inch rotor-to-stator and seem to be about the same physical siz
TT: I measured the caps' range this evening. I used an MFJ259 analyzer and a two-inch piece of RG-8X coax with PL259 at one end and 'gator clips at the other. Lowest freq for which I could obtain a m
Bob: Another way of saying this is your model needs another wire between the shack end of your LW and ground. Then you put a source in this wire. Make the vertical wire 6.1M long and put the source a
TT: On my Bencher tribander all the elements are insulated from the boom with PVC sleeves tightly held to the boom. Therefore, to short the parasitics to the boom I was not able to snake a hose clamp
Mark et al: I like the 100% tie-off shock-absorbing lanyard: http://store.pksafety.net/fi10tirela.html . Apparently they don't stretch the way Mark's lanyards do while moving around on the tower, but
Peter: If that alleged null towards Europe is the only thing keeping you from installing the L for the upcoming contest - fuggedaboudid. The null is really only a 1-2 dB drop in gain in the direction
Tom: You didn't say how much property you have or whether you have trees. Nevertheless, here are some ideas for antennas for 80/40M: 1. Inverted L type of wire antenna. Requires a tree or similar to
Rich: Right up my alley! I have a shunt-fed Trylon T-500-64 that works very well (IMHO.) I posted a few times here on TT once I had the tower up and shunt wires hung off it. Check out http://lists.co
Phil: If it weren't for the open space all around your tower, I would have sworn that your pix were of my installation. (I have lots of trees in my back yard.) I even use the same kind of plastic con
Kelly: Too late to help me at the time, but after I had installed my trbander with telescoping elements, I found a couple of brass brushes that I'll use the next time I need to telescope aluminum tub
Ferico: I have a small yard for my 64-foot tall tower. The tower supports a triband Yagi (Bencher Skyhawk) and a rotatable 40M dipole (Cushcraft D40) on a 15 foot mast above the tower top. I use a sh
Gents: I intended my last posting regarding my shunt-fed tower to go to Federico exclusively. I didn't mean to bore you once again with the details of my tower loading. Sorry for the BW. Federico: An
Butch: For the same application at my QTH and tower I used Hoffman type 3R enclosures ( http://www.hoffmanonline.com/iHelps/Product.cfm?ID=7028A ). These things are commercial grade and made to withs
TT: FYI. Others have suggested addressing any QSL/Get Well Wishes to Randal and his family. My card is in the mail this morning. 73 de Gene Smar AD3F _______________________________________________ _
TT: The ARRL's web site has a reference to a page on the FCC's site to calculate HAAT (Height Above Average Terrain): http://www.arrl.org/news/features/2006/01/06/1/?nc=1 For those of you not familia
Bill: In general, yes, a passive, sacrificial anode material can be used to protect against electrolytic corrosion. But you have to know a lot more about the material to be protected and its environm
Gary: There are several tools that will let you wrap tie wires around rebar snuggly enough to prevent the cage from falling apart as it is dropped into place (usually with the hlep of the excavator m
TT: To hold my tower's cage in place (it was a bit wobbly in the hole) prior to the concrete pour, I wire tied the top horizontal rebar pieces to the wooden form above ground. I drove few 16d duplex
Howard: http://www.groundhawgs.com/ and http://www.demrk.com/Ground.htm and http://www.condux.com/products/aerial/dddrvr.htm . All are from TT archives under impact hammer. I'm sure there are other i