Well, we do have a 9cm band and there are at least six of us using it here in the USA. I don't think your suggestion would bother the other 300,000 or so hf/vhf operators though. 73, Gerald K5GW In a
Chuck, can you quantify the R +j at the feedpoint with a noise bridge or MFJ analyzer? With that information a matching solution can be determined. 74, Gerald K5GW In a message dated 2/15/2010 7:36:4
Some time back there was an article in QST about Fractal Antennas and I believe they used one on 10 meters. So far, searches find listings, but the pages have been blank. They'd be a limited space an
You will find information about Fractal Antennas in back issues of Ham Radio Magazine. CQ Magazine offers CD ROM copies I believe. 73, Gerald K5GW s In a message dated 2/20/2010 5:03:32 A.M. Central
Ron, the clamping ring for N connectors is nickel plated. You will turn the coax to charcoal before successfully soldering the shield to it. One of the major failure modes with N connectors is having
Hi Ron, the heat shrink alone is not water tight. Your plan to use the fusing tape is the very best way to seal the connectors. The fusing tape of coarse needs uv protection and even cheap vinyl tape
Steve, your info is very timely as I encountered that very problem today while building a 70cm 2 way power divider with RG213/u. Do you have a solution for the loose fitting nut? 73, Gerald K5GW In a
Hi Dale, if you take the extra step to add AC and Heating along with walls and roof,, you are assured of success! You can decorate the inside with pictures of beautiful naked Red Hawks for even more
Gene, the current draw at startup is a bunch higher than the running current. Sorry, don't know how much higher. You are probably ok with the 3 #12 wires but you might want to test it on the ground b
One of the fellows here mentioned a speed of 20 or 30 seconds for one rev. An unmodified prop pitch motor takes almost 2 minutes per rev. There was a mod published in CQ Magazine back in the 50;s sho
hi Ted, you can find it at _www.texastowers.com_ (http://www.texastowers.com) . Click on the on line catalog button and select steel masts. 73, Gerald K5GW In a message dated 3/17/2010 5:38:50 P.M. C
Also available at Texas Towers with a hot dipped galvanized finish. 73, Gerald K5GW In a message dated 3/17/2010 5:41:39 P.M. Central Daylight Time, ezrhino@fastmovers.biz writes: You need tubing not
Guy, did you use some oil to reduce friction/heating? Did you slow the drill speed way down to reduce heating? 73, Gerald K5GW In a message dated 3/23/2010 11:12:03 P.M. Central Daylight Time, guy_mo
After breaking too many 6-32 and 8-32 taps in vhf/uhf cavity amplifier aluminum parts, I discovered a product named "Tap Magic for Aluminum". I have to say that it is indeed ":magic" and smells good
Joe, UPS will ship 7.5 ft lengths but the carton is subject to their double oversize charges. That basically means you pay as if the carton weighs 70 pounds. You are correct in that the shipping char
Chris, the attenuation of these stubs is limited only by the loss in the coax used to make the stub. If you think about it, you are trying to create a dead short at the frequency of the trap. A dead
Jim, to further put the numbers in perspective, using the 10 to 1 example, the impedance could be between 5 ohms and 500 ohms (50/10 - 50 X 10). The nominal 30 dB notch with .05 ohm short would have
Yes, I have cut many through the years with a hacksaw. Since the cut goes into the concrete, it doesn't have to be "pretty". 73, Gerald K5GW In a message dated 4/1/2010 4:37:16 P.M. Central Daylight
This ain't hard guys. If you have a Sawsall , you use it. If you have a grinder, you use it. If you have a hacksaw, you use it. If you have nothing, then you go to Home Depot and decide which option
You would probably see their backs if they thought you were serious. That tower sounds like a disaster in waiting! I hope no one gets hurt when it falls. 73, Gerald K5GW In a message dated 4/8/2010 1