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1. Topband: Inductors vs. NORD and UG top loaded antennas (score: 1): Author: R.J. Mattson" <rjmattson@hvi.net (R.J. Mattson); Date: Wed, 4 Dec 2002 21:21:37 -0500; Tom, Have you found any ratio of diameter to length for a loading inductor that optimizes the Q? I use a 68' wire vertical, feed at the 8' level with open wire for 160/80/40m. My homemade tuner gives; /archives//html/Topband/2002-12/msg00069.html (8,092 bytes)
2. Topband: MATCHING COIL QUESTION (score: 1): Author: rjmattson@hvi.net (R.J. Mattson); Date: Sat, 14 Dec 2002 17:01:06 -0500; I use RF Ammeters at the base coil to optimize both radiator and ground currents. I have extra rf ammeters if anyone is in the market. Bob...W2AMI http://www.qrz.com/callsign/w2ami; /archives//html/Topband/2002-12/msg00205.html (6,473 bytes)
3. Topband: stripping enameled wire (score: 1): Author: rjmattson@hvi.net (R.J. Mattson); Date: Tue, 17 Dec 2002 15:19:06 -0500; I heard nail polish remover works. 73 Bob Mattson...W2AMI http://www.qrz.com/callsign/w2ami; /archives//html/Topband/2002-12/msg00222.html (7,755 bytes)
4. Topband: Inverted L Directivity (score: 1): Author: rjmattson@hvi.net (R.J. Mattson); Date: Mon, 11 Nov 2002 06:00:19 -0500; The only space I have for a Inv.L. is for the far end to go over the house. The last 25% of the horizontal portion would be over the house. I know this would change directivity but how would it effec; /archives//html/Topband/2002-11/msg00044.html (7,096 bytes)
5. Traps Re: Topband: 40/80/160 Meter Antenna (score: 1): Author: rjmattson@hvi.net (R.J. Mattson); Date: Fri, 15 Nov 2002 21:37:22 -0500; Hi Tom, Where does a 1/4 wave xmn line (#10 wire, 4" spacing, air dielectric) shunted at the far end come in on the Q list as a trap? Bob Mattson...W2AMI WN2AMI 1962 Highland NY; /archives//html/Topband/2002-11/msg00094.html (6,395 bytes)
6. Topband: Top Band Antenna Ideas (score: 1): Author: R.J. Mattson" <rjmattson@hvi.net (R.J. Mattson); Date: Tue, 3 Sep 2002 22:14:06 -0400; Thanks Bill, Got some good ideas from the photos. Any sign of the ground system? 73, Bob Mattson...W2AMI Over the weekend I took pictures of some longwave antennas used by local aeronautical beacon s; /archives//html/Topband/2002-09/msg00026.html (7,412 bytes)
7. Topband: One wavelength Beverage (score: 1): Author: "RJ Mattson" <rjmattson@hvi.net>; Date: Tue, 14 Oct 2003 10:46:28 -0400; I have found numerous construction sources on google to erect a 160m Beverage but I am confused as to the correct length for one wavelength. Freq.= 1830 kHz. Height = 8 feet. Wire = One Insulated #16; /archives//html/Topband/2003-10/msg00078.html (7,046 bytes)

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