See Feb 1990 QST pages 28-32 for a balanced tuner that can be remotely tuned and is very efficient. Ron W8RJL _______________________________________________ _________________________________________
If you take a direct lightning hit on your tower the size wire between the tower legs and the ground rods does matter. In the book "Compehesive Grounding and Protection of Communications Sites they s
Ask the power company to use an infrared camera some cool wet night to see if they can find it. Arcing will produce heat and it will show up as a hot spot. If power company will not do it see if some
I would do the following if you have not already done so: 1. Replace the AC cap in the rotor box with the proper size if the control box has any age on it. It may have lost some capacitance. Have you
Why not use two stainless washers between the coax feed thru nuts and the lug. That should solve the dissimilar metal problem you mention. 73 Ron W8RJL _______________________________________________
All you need is a teflon like O-ring (spacer) to keep the barrel in the center of the hole and use stainless flat washers. Ron W8RJL _______________________________________________ __________________
Rick, When I worked in Landmobile Radio, we had problems with trunk lid grounding. An old GE Radio Tech taught me to use tinned braid on the aft two corners of the trunk lid to get a good ground. One
Tom If you put a director in front of a dipole you have constructed a two element Yagi antenna. Assuming you use the proper spacing (0.1 to 0.15 wavelengths) between the dipole (now called the driven
Tom, your original post said a dipole E and W but now you say it is a VERTICAL dipole ??????? Please verify what you are attempting to do. Ron W8RJL _______________________________________________ __
Find the zip code for Franklin County, VT. Go to the FCC web page http://wireless2.fcc.gov/UlsApp/UlsSearch/searchLicense.jsp and do an advance search for hams with that zip code. The search will fin
Does anyone hold drawings for a concrete base for a 54 foot crank-up that has been approved for 100 MPH winds? I have the drawings by Tri-Ex for the Reinforced Concrete Base RCB-54LT and the LM Serie
Rick, I hear what you are saying but why not just use your S meter. Get a ham that is a mile or two from your QTH and have him (on a dead band) key up a reduced power carried. With your beam pointed
A solution for your rotor loop is to buy a traffic cone, slit vertically, wrap around mast so the wide end covers the thrust bearing bolts, secure cone to mast with a hose clamp. Regarding setting th
This posting only impacts anyone using Tashjian Tower drawing RBC-54 LT Base Weldment drawing to construct their own rebar base. In early 2010 I purchased from Tashjian Tower the four pieces of steel
Regarding why drive the end of the ground rod 6" below ground, it is so it won't be a trip hazard. The solution is just go to the hardware store and buy the round fiberglass/plastic device with lid t
Why not use two Dow Key type relays each SPST. They come in several DC voltages and 115 VAC. They will handle the 1500 watts, have low SWR, all you need is power source and a SPDT toggle switch. Dow
How are you going to connect the acc jack wires from one rig to two amplifiers without switching? Can you just use a Y connection? Are you using key line interface units between rig and amp? BTW, I f
I've been water proofing coax connectors for years the old school way (with no problems). I'm ready to try the new shrink tube with adhesive which seems like a good way to go. I just measured a PL-25
My cousin was approached about a cell tower on his farm in Ohio quite a few years ago. A hell of a deal but he coud not make a decision because he was worried the radiation might hurt his kids (farme