Search String: Display: Description: Sort:

Results:

References: [ +from:k9yc@audiosystemsgroup.com: 1173 ]

Total 1173 documents matching your query.

101. Re: [TenTec] OT 75 Ohm twin feeder (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Tue, 17 Jun 2008 22:17:52 -0700
There is an EXCELLENT piece of well documented research in one of the ARRL Antenna Compendiums (Vol 4 or 5 -- I'm on the road in a motel, so can't check) showing that the losses in typical window lin
/archives//html/TenTec/2008-06/msg00364.html (9,086 bytes)

102. Re: [TenTec] Looking for a rig upgrade... (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Wed, 02 Jul 2008 10:15:25 -0700
Used Omni V, Omni VI, and Omni VI+ are great choices in your budget range. The Elecraft K3 is also a great radio for what you want to do, and would fit your budget if you didn't load it up with too m
/archives//html/TenTec/2008-07/msg00019.html (9,291 bytes)

103. Re: [TenTec] Orion 2 / Hercules 444 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Thu, 03 Jul 2008 10:07:48 -0700
You need to find a "pre-delay" keying output from the Orion. This corresponds to the keying line in the older Ten Tec rigs with which the 444 was designed to work. I don't know if the Orion has this,
/archives//html/TenTec/2008-07/msg00040.html (7,648 bytes)

104. Re: [TenTec] Looking for a rig upgrade... (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Thu, 03 Jul 2008 10:55:17 -0700
Although I've never used one or seen a manual, I strongly suspect you are mistaken about this. Several of the major logging/control programs I own list it as a rig that they work with. There are inde
/archives//html/TenTec/2008-07/msg00042.html (10,287 bytes)

105. Re: [TenTec] SWR VS Power Loss (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 04 Jul 2008 10:07:41 -0700
The definitive graphs are in the ARRL Handbook and ARRL Antenna Book. The ARRL Antenna Book comes with an excellent program that computes SWR for any load, then computes loss for that degree of misma
/archives//html/TenTec/2008-07/msg00057.html (7,890 bytes)

106. Re: [TenTec] SWR VS Power Loss (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sat, 05 Jul 2008 14:50:08 -0700
I agree. I've recommended it to many colleagues working on the technical side of pro audio, and to many who want to get started in any kind of radio or electronics. I've often said that I thought mor
/archives//html/TenTec/2008-07/msg00078.html (8,964 bytes)

107. Re: [TenTec] OT SWR VS Power Loss (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 06 Jul 2008 20:04:02 -0700
Yes and no. Radiation from coax is NOT related to VSWR. Radiation from ANY feedline, including coax, is DIRECTLY related to IMBALANCE in the antenna with respect to the reference plane (ground for ea
/archives//html/TenTec/2008-07/msg00097.html (8,124 bytes)

108. Re: [TenTec] OT SWR VS Power Loss (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 06 Jul 2008 21:28:27 -0700
Al, You're right on target about antennas being unbalanced by their surroundings, but you're in the dark ages with respect to solutions to this problem. See http://audiosystemsgroup.com/RFI-Ham.pdf a
/archives//html/TenTec/2008-07/msg00101.html (9,067 bytes)

109. Re: [TenTec] OT: SWR & Coax (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 07 Jul 2008 07:55:37 -0700
Either you were stupid or he was drunk. The concept is quite simple and easy to explain and understand. Ham radio is about learning how radio works, how electronics works, how propagation works. If t
/archives//html/TenTec/2008-07/msg00114.html (7,838 bytes)

110. Re: [TenTec] OT: SWR & Coax (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 07 Jul 2008 09:48:22 -0700
My first ham radio mentors made sure that I owned and studied that book when I was starting out in 1955. Many foolish statements have been made on this and other lists because the poster obviously ha
/archives//html/TenTec/2008-07/msg00121.html (9,734 bytes)

111. Re: [TenTec] OT: SWR & Coax (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 07 Jul 2008 12:44:04 -0700
http://audiosystemsgroup.com/publish 73, Jim _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2008-07/msg00143.html (9,051 bytes)

112. Re: [TenTec] OT: SWR & Coax (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 07 Jul 2008 13:03:35 -0700
What name calling? Don't put words in my mouth. I haven't responded negatively to questions. Rather, I have chided those who play dumb (Mr. Harpole, who derided the fundamentals of electronics as to
/archives//html/TenTec/2008-07/msg00144.html (10,021 bytes)

113. Re: [TenTec] OT SWR VS Power Loss (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 07 Jul 2008 15:12:33 -0700
The text is fine -- you missed an important part of the sentence -- "in the time of one RF cycle." That establishes the length of the antenna as long enough to be resonant. It will only be "very shor
/archives//html/TenTec/2008-07/msg00149.html (10,427 bytes)

114. Re: [TenTec] Logging Software (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Tue, 08 Jul 2008 09:50:59 -0700
I've used the DXKeeper logger that is part of the FREEWARE DXLab suite for five years. I am VERY happy with it. It coexists with Ham Radio Deluxe, an excellent FREE radio control program. About 3 yrs
/archives//html/TenTec/2008-07/msg00178.html (7,988 bytes)

115. Re: [TenTec] Omni 6+ great CW rig (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 11 Jul 2008 09:36:00 -0700
If you do serious contesting (or even DX chasing in big pileups), you really want that roofing filter. I ran several contests with my V.9, and quickly came to that conclusion. I bought the 2.8 kHz In
/archives//html/TenTec/2008-07/msg00251.html (8,706 bytes)

116. Re: [TenTec] OT Antenna Tuners (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sat, 19 Jul 2008 08:50:09 -0700
http://www.somis.org/bbat.html He's in the dark ages with respect to understanding baluns and common mode chokes. W2DU, W7EL, and W1JR moved well beyond him more about 25 years ago, and my work is a
/archives//html/TenTec/2008-07/msg00324.html (8,285 bytes)

117. Re: [TenTec] OT Antenna Tuners (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Wed, 23 Jul 2008 08:14:02 -0700
Gerry's analysis is correct -- it's a TRANSFORMER. Depending on the core material (and to some extent, the winding details), it becomes increasingly lossy with increasing frequency. For Fair-Rite #61
/archives//html/TenTec/2008-07/msg00348.html (9,114 bytes)

118. Re: [TenTec] ESD - Static Discharge revisited OMNI VII (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Wed, 23 Jul 2008 18:53:33 -0700
I don't know anything specific about this particular radio, but you're right, it is EXTREMELY BAD DESIGN for a cable shield to not be connected directly to the chassis. What you describe is known in
/archives//html/TenTec/2008-07/msg00352.html (8,968 bytes)

119. Re: [TenTec] pilot light bulbs (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 03 Aug 2008 21:53:06 -0700
Yes. I own five 229/238 tuners. I put LED's in the first one I bought. Didn't even consider doing it to the others. Instead, buy 14 volt, long life incandescent bulbs from a good industrial electroni
/archives//html/TenTec/2008-08/msg00036.html (7,487 bytes)

120. Re: [TenTec] pilot light bulbs (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 04 Aug 2008 09:05:11 -0700
The lights are wired in parallel and run on whatever power supply is plugged into the RCA connector on the back. For most of us, that's 12-14 volts. 73, Jim K9YC ____________________________________
/archives//html/TenTec/2008-08/msg00042.html (7,906 bytes)

Current List: 101 - 120
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
This search system is powered by Namazu