Dave: A couple of points: o Your 180-foot plus long ground wire won't even be "seen" by the SPG (assuming the SPG is at the house/shack entrance.) Polyphaser suggests that a buried ground wire 70 fee
Tom: If your objectives include operating on Topband, then I suggest you cozy up to your farmer neighbors and seek their permission to install temporary Beverage antennas after each harvest. Another
TT: I've had a plastic shoebox made by Tucker out at my tower since Feb of 2002 to hold the gamma cap for my shunt feed. It's still in good shape, although the plastic lid is a bit faded. Occasionall
Don: I'm not sure what advantage mounting the box upside down would offer. In fact, the upfacing lid edge would funnel water into the upturned lid, ensuring that the drain holes would be needed. Plus
TT: My YF has a set of these that she uses for food storage (imagine that!) They are made of substantial thickness plastic and appear to seal well because of the gasket. I can't vouch for their durab
Steve: I've had a Skyhawk up on my tower since 2001 and like it a lot. It was the first Yagi I've had in 40 years as a Ham so I have nothing to compare it to, but it does break pileups with 100 W. (A
TT: Same with me - Mozilla w/McAfee gave no malware warning. 73 de Gene Smar AD3F _______________________________________________ _______________________________________________ TowerTalk mailing lis
TT: It is for this same reason (high field intensity surrounding a small energized conductor) that power transmission lines operating at 500 kV and up use two conductors per phase. You can see the pa
Mat: FWIW - when I was designing mission-critical power systems for gummint clients' computer systems, we always spec'd Transtector or equivalent for the TVSS. 73 de Gene Smar AD3F __________________
Chris: I clip my fall-arrest lanyard to the front of my full body harness rather than in the back. I, too, dislike the possibility of doing a face-slammer into the tower. 73 de Gene Smar AD3F _______
Serge: If after you inspect the D3W you determine that the Y-split in the coax is the culprit, I described a method of sealing this split at http://lists.contesting.com/archives//html/Towertalk/2002-
TT: I just checked my can of liquid electrical tape in the garage to help out another TT'ian and found that it's become rather thick. I checked the archives but found nothing on thinning this stuff.
Roger: Thanks for your suggestion, but I'll stay away from MEKP. We used that stuff years ago when I was with the electric utility company and we were experimenting with polymer concrete (Google it o
TT: Thanks for your suggestions to use solvents such as MEK, MEKP, acetone, mineral spirits. However, it might be better for simply to buy another can of the stuff when I need it, as Craig suggested
TT: Didn't someone here post a few years back that there was an error in Frank's spreadsheet calcs? Anyone know what they are? 73 de Gene Smar AD3F _______________________________________________ ___
Roy: I bought mine in 2001, refurbished, for about $350. FWIW. 73 de Gene Smar AD3F _______________________________________________ _______________________________________________ TowerTalk mailing l
Scott: I have a Cushcraft D40 (compact) rotatable dipole at the top of my tower's mast at 78 feet. I find that it is pretty much non-directional, that is, I can't seem to find a null or even a measur
Pete: If the gland is on the side of the enclosure, I would include a drip-loop in the coax and wire before they enter the gland. All bets are off, though, if the gland is on top. Also, the spongines
Tom: I agree with Gene (a sturdy name, BTW) in that you ought to use Penetrox or similar material when joining the various taper sections. However, let me add a bit to it: o Use Scotchbrite pads and
Frank: I installed a Trylon self-supporter here in 2001. I've said before, I'd buy another one if I needed it. It's not a heavy-duty design that would support a Yagi for 80M or stacks of FS 20's, but