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References: [ +from:mapa50@windstream.net: 6 ]

Total 6 documents matching your query.

1. Re: Topband: Are stacked verticals feasible? (score: 1)
Author: <mapa50@windstream.net>
Date: Fri, 6 Sep 2013 23:42:48 -0500
I have the book. It is among the first antenna books I bought in 78 when I was first starting in this hobby. The book is The Amateur Radio Vertical Antenna Handbook by Capt. Paul H. Lee, USN retired
/archives//html/Topband/2013-09/msg00052.html (20,342 bytes)

2. Re: Topband: Antenna Help (score: 1)
Author: <mapa50@windstream.net>
Date: Fri, 31 Jan 2014 19:53:21 -0600
I have an antenna that I originally built for 75m. It is 72 feet tall which is .280 wavelength instead of 1/4 wavelength. This gives a resistive feed point of 52 ohms and an inductive reactance tuned
/archives//html/Topband/2014-01/msg00381.html (8,402 bytes)

3. Re: Topband: Submerging variable caps in oil assubstituteforvacuumvariables (score: 1)
Author: <mapa50@windstream.net>
Date: Tue, 4 Feb 2014 12:54:37 -0600
I contacted George A. Sanford about the oil used in the variable cap in the HP4815a and he replied that the oil was used for a shock absorber effect for frequency stability in the instrument and not
/archives//html/Topband/2014-02/msg00067.html (15,331 bytes)

4. Topband: Palomar R-X Noise Bridge (score: 1)
Author: <mapa50@windstream.net>
Date: Thu, 13 Feb 2014 23:18:07 -0600
I have a question about using the noise bridge. I have used it cut stubs to 1/4 wavelength using 52 ohm cable with no problems. I now need some stubs using 75 ohm cable which I have on hand. Will the
/archives//html/Topband/2014-02/msg00208.html (6,776 bytes)

5. Topband: Palomar R-X Noise Bridge (score: 1)
Author: <mapa50@windstream.net>
Date: Sat, 15 Feb 2014 15:32:16 -0600
I just wanted to thank everyone who answered my question about coax impedance and how it would affect 1/4 wave stub length found and cut using a noise bridge. It won't. I though that was the way it w
/archives//html/Topband/2014-02/msg00277.html (8,330 bytes)

6. Re: Topband: Outdoor rope suggestions (score: 1)
Author: <mapa50@windstream.net>
Date: Wed, 17 Sep 2014 14:52:49 -0500
I have noticed a wide range of experience that people are reporting on the life of the black braided Dacron polyester rope. I have had extremely good life and strength use on a wide range of antennas
/archives//html/Topband/2014-09/msg00092.html (9,493 bytes)

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