Richard, I use cushion clamps from Air-Tech Inc. I use the CL2010S for my LDF4-50A coax. They provide a very snug gripping action without crushing the coax. I paid $0.30 a piece. You will have to res
All, Thought I would jump in and tell you my tale of woe about using THHN insulated wire. I bought a 1000 ft roll of #12 copper from Home Depot to make some 160 meter radials. After about 2 years, th
Alright, let's end the thread. I am removing the insulation no matter what the wire is.... Thanks to all who replied. 73 Hardy N7RT _______________________________________________ ___________________
It's pretty stupid that you have to do that. Just take the lead out of your childs toys and use it on the connector. _______________________________________________ __________________________________
Jerry & All, Silver plating Pi Network coils in amps is pure marketing because it sells!!! The efficiency is of silver plating is maybe 1% better when all is said and done. When I was in Aerospace, c
If memory serves me right, W4RNL did some modeling on this and the results were not real good. Please check his website. 73, HNY N7RT _______________________________________________ _________________
Barry, My experience has been these insulators are ok for a couple of years but they eventually go bad (I think they absorb water). My SWR started to change and then got real bad. Replaced the Budwig
I use direct coax feed but on 10 meters I put the driven element between the 10/15/20 reflector and the 15/20 driven element. That frame then has the 10 first director. This gets the impedance down t
tower limitations: Considering 40 meter 2-3 element M2--linear loaded. Hi Grant, 1) I had a linear loaded 2el 80 (M2) and was very disappointed with it. I would not put up a linear loaded anything ag
What I would be afraid of is the Rohn 25 top section failing after a period of time because of the tower section twisting that will occur each time you start the prop pitch. I have about 22 sq ft on
I have buried Heliax with no problems EXCEPT one run ran by a tree and the roots buckled the cable. Stay away from the canopy of any tree. Heliax is rated for direct burial. Hardy N7RT ______________
Another advantage to the capacitor approach is the current maximum is farther away from the ground/radial system. I think one would see a definate field strength improvement. I used this approach on
How come you did not plan this ahead of time? 30 feet is a waste of money anyway. -- Original Message -- From: "AD5VJ Bob" <rtnmi@sbcglobal.net> To: <towertalk@contesting.com> Sent: Sunday, June 08,
I would like to talk to someone who has one of these 20, 15, 10 meter antennas. Please email me direct. Thanks N7RT n7rt@cox.net _______________________________________________ ______________________
Hi All, My 2 cents. I have seen the wind suddenly die--then change direction--then change again. It's like a box of chocolates.... N7RT/4 You don't need to be concerned with equal areas. The force (l
It has been my experience that disconnecting everything and putting the plugs on the floor works. 73 Hardy N7RT About two weeks ago, we had an extremely close lightning strike that surged our AC volt
Jim, Paul, et al, The Delta Loop is a great antenna if the bottom of the triangle is ON TOP. I think Lloyd & Iris pointed that out years ago when they were in Richmond, CA. 73 N7RT Probably not, but
Dick, I converted a 7 el 6mtr beam to a G0KSC LFA, reflector on a 13 ft flberglass ladder and tuned the DE. Worked very well. His loop fed arrays are so simple and easy to adjust I will not go back t
Hi All, Yes to coax not being perfect. And it has problems too. And it's not a stupid question. The variable no one has ever brought up is "coaxial cable structural return loss" eg: How well can a ma
Hi Rick, et al, Nice science project Rick but I am all out liquid NOX. Recycle what you have, get new stuff, get on with your life. Been there...My dos centavos Hardy N7RT/4 While reading this, I tho