I expect results would be frequency dependent since the skin effect is frequency related AFAIK. I have some war surplus rotary inductors made with solid silver wire. You can add that to your list als
I had a bit of a laugh some years back. Someone had cut the ground wire on the power poles...but it was Copperweld! As for the entire cell site including tower being stolen in India, I hope it was no
Well the neutral line isn't really required on the high voltage feedlines. Our power line used to come directly from the ridge across the road, an 800' span 200' above the road.. Several times we fou
I think one reason for the variations is that standards (calculations) have changed over time (thank the lawyers?) In 1971, I put up a Heights 72' aluminum tower. It required a 4'x4'x4' concrete base
I have seen used towers on Craig's list and Facebook Marketplace. Ken WA8JXM _______________________________________________ _______________________________________________ TowerTalk mailing list Tow
96 consecutive hours (so far this week) basically unattended. It would appear that the operator intends to work DXCC on 20m without even being in the room with the radio. Be careful of what you ask
I can say this: back when I started (1963) we had 300 kc/s for CW only on 80m and many nights it was difficult to find an open spot to call CQ. 75m phone had 200 kc/s and was crowded even worse. Now
IDK, is "return loss" measurement necessary? I checked some old coax a few years ago, connected a dummy load to the far end and used the power meter on my Palstasr tuner to measure the input power, t
I am no expert but... Pulling on one guy and cutting the other guys will let it go sideways. If you cut two legs, I think it will probably go sideways. I would cut the back half of the legs you want
Maybe one of the tower leg bolts was still installed? Trying to pull that apart would definitely overload a marginally rated crane. Ken WA8JXM _______________________________________________ ________
Which seems to me that the sections did not separate as expected and the crane tried to lift the entire tower, including the lower anchored and guyed sections, and failed. Whether they missed removin
Don, I think most remote cameras are labeled "security" because that is where the market is. Other than recording movement, I don't know what makes them "security" cameras. We have a a half dozen her
YMMV but I have been going to mostly POE (Power Over Ethernet) myself. You don't have to run a separate power line to the camera (usually 12v) or locate it near an outlet. If you are using a wired c