I am trying to shunt feed a tower for 160 meters. I have a 135' Rohn 55 tower with several good sized antennas on it. Guys are insulated. I have run an old piece of coax up 35' about 2' off the tower
I tried Bud, W2RU's suggestion of switching the shunt capacitor, but it made the receive level lower. I moved the gamma tap to 70 feet. I connected the center conductor at the top and the shield at t
With the higher attachment point, more series capacitance and zero capacitance to ground I now have 2.5 to 1 SWR. It also was able to make several contacts: C6, P40 and W8. I guess it is just a matte
I have been trying to repair my 4 beverage antennas. Wires and terminations are good. 2 of the beverages work well, 2 are "dead" I have checked the coax and connectors are ok. Other than broken wires
As a follow up to my emails about the troubles with 2 of my Beverage antennas: I found that one of them had an old connection between the beverage box and the antenna that had been covered with liqui
As an added note: On the Beverage with the bad transformer also had a blown termination. Chuck W5PR _______________________________________________ _______________________________________________ Tow
Thanks to whoever started this. I put in my lat/long and found I was near a grass field I did not know about and my tower project will be about 24 feet too high without registration. The tower was al
It depends on what you want to do and where you are. I have contested with varying height towers through several sunspot cycles. The most contacts, by far were made on a 70-75 foot high antenna. I wo
I don't think it would work. Why would you want to take down the antennas every year to polish the elements and then put grease on them? Chuck W5PR _______________________________________________ ___
I am looking at antenna analyzers. I would like a portable device that will graph. Would like to be able to adjust yagis. Build stack boxes to match, for example, 25 ohm to 50 or 75 ohm lines. etc. W
I am mainly interested in HF & 6m. The AA-230 has the TDR for cable faults and it connects via a USB rather than the serial of the AEA. I had an AEA CIA-HF and really liked it. I may not be sophistic
Anyone have experience with one of these? Likes? Dislikes? Thanks, Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list To
You are lucky to have observed this. Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://
I hate adjusting gamma matches through trial and error. I am hoping my new antenna analyzer will help. I computer designed a 10 meter Yagi which designed at a feed impedance of 31.2 + j18.3. This is
I do have a series capacitor. I was giving you the design impedance without the gamma match and the measured impedance. I used one wavelength of feed line so I could get the antenna off the ground. I
Ok, I understand all this. The capacitor in the gamma is to cancel the inductance so there is a resistive load. Shorter/longer DE will also vary the capacitive/inductive component without much effect
Sometimes it helps to use BOP when the station you want to work is off the back and there is a strong signal in the front of the stack. Not worth the effort though imho. Chuck W5PR __________________
How about high strength, clear mono-filament fishing line? Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@
Ummm Are you sure that is accurate? Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://l
If you read all the way to the bottom it says the cause of death was "blunt force trauma." Sounds like a murder! Chuck W5PR _______________________________________________ ___________________________