I have been looking at the radiation pattern for a 160 delta loop fed for vertical polarization with the base wire 12 feet above the ground. I was wondering what the radiation pattern would be for fe
Hi Brian, I feel your pain! Top band is a tough one for noise. I also live in a California suburban neighborhood. Our power lines are not underground like a lot of the newer areas and have been prett
Tony, G3LNP has an article in October 2010 QST (page 30) describing a K9AY loop antenna that is able to steer the null elevation angle. In its standard configuration we can steer the K9AY loop in azi
I will be stringing up a delta loop off my tower and want to have the wire be as invisible as possible without being too flimsy. The smallest copperweld I can find is 20 gauge. Does anyone have exper
I see some good prices on new Russian vacuum variables on EBAY. Thinking about getting several for a vertical tuning unit I am planning. Anyone bought vac vars from the Russian EBAY vendors, good res
Charles, I also use the same choke construction as Tod, K0TO. Six turns through 5 Fair Rite No. 31, 2.4" dia ferrite cores. Works very well, essentially zero loss and no heating issues. Note, put the
I use one between my K3 and 160 meter flag antenna for receive. No attenuation at all in received signal and no worries now about too much RF getting back into the K3 from the receive ant line. I sec
I use the same approach and also paint the exterior of the plastic soda bottle with exterior latex house paint, in my case a nice sandstone color :-) left over from my house painting. The plastic bot
KD9SV offers the transformer and 900 ohm resistor for the pennant antenna, ready to go, very inexpensive. I am using his kit and works great. It is stock number SV-PEN on his website: http://www.radi
Joe, W4TV, Thanks for the info on the insulators. ! I just ordered some myself. These are great for making a fat gamma rod as you indicated. (They are a little pricey though, a whopping 35 cents apie
You guys aren't instilling confidence in my 160 L antenna I am working on. :-) Just my luck, retire and finally get to have some time to play with antennas more, putting up a 160L and the band goes b
David, I think the "divide and conquer" approach is the best. Hopefully the source(s) are in your own home, much easier to resolve. What I did was to connect a 12 volt battery to my K3 so I could lis
Eddy, GC makes Corona dope which I believe is the same thing as Glyptol. take a look : http://www.alliedelec.com/Images/Products/Datasheets/BM/GC_ELECTRONICS/796-4335.PDF Bob K6UJ ___________________
I've used Glyptal for insulating varnish many times and works well. I has great anti corrosion properties and can be used for a coating that is resistant to acid and alkali too. It can be used for a
I am panning to try out a top loaded delta loop for 80 meters strung off the side of my tower. I want to have a horizontally polarized loop. I will feed at the middle of the bottom horizontal leg. Do
The reason I am trying a horizontally polarized delta loop is because I had a vertically polarized delta strung from the tower and it was too noisy. The tower was reradiating noise to the delta. I am
thanks guys, I will experiment with the top loading and also pulling the bottom away to a wider angle and see how it goes. 73, Bob K6UJ _______________________________________________ UR RST IS ... .
Hi Guy, You are pretty close Guy ! My little lot is only 65 x 120. I have two masts for supporting the lower leg of the delta One is at the rear corner and the other is at the front corner set back a
Allan, I have the same problem here. I now order them on line directly from USPS. Here is their ordering web page for the IRC's: https://store.usps.com/store/browse/productDetailSingleSku.jsp?product
I'm with W0UCE. If we look long and hard enough we can find even more potential problems. But why ? I prefer to be optimistic and embrace their successful reentry and wish them well. Bob K6UJ _______