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Total 183 documents matching your query.

141. Re: [TenTec] OT 75 Ohm twin feeder (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 18 Jun 2008 14:07:31 -0700 (PDT)
RG400 is like RG58 on steroids. Too small OD for my suggestion. For 200 ohms you would need RG8, RG213, 9913 and the sort. Keep The Faith, Jim K9TF/WA9YSD
/archives//html/TenTec/2008-06/msg00372.html (8,111 bytes)

142. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Sun, 22 Jun 2008 08:22:55 -0700 (PDT)
Ahhhhhhhh! I think I found it. Swapped cables on either side of the Bird watt meter running between the Hercules II Amp and TT 253 Tuner going to the dummy load with the Bird watt meter between the a
/archives//html/TenTec/2008-06/msg00390.html (10,465 bytes)

143. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Tue, 24 Jun 2008 03:24:26 -0700 (PDT)
Ok, 0.3 watts of insertion loss, right? Now ANSI specs for pressure gauges are rated Class A,B,C,D. Class D being the least accurate, and commonly found on Air pressure tanks and compressors to put u
/archives//html/TenTec/2008-06/msg00409.html (9,532 bytes)

144. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 25 Jun 2008 17:53:24 -0700 (PDT)
I had to bring up the tolerance of the meter itself. Could not resist cause it brings into focus real accuracy and the misnomers that tolerances play on it.. It is more accurate than 5% full scale an
/archives//html/TenTec/2008-06/msg00445.html (9,126 bytes)

145. Re: [TenTec] OmniVI Plus Over Drive Amp (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Thu, 26 Jun 2008 15:35:58 -0700 (PDT)
So with the 250 watt element, +-5% Full scale so at 150 to 250watts full scale +-12.5 watts, 50 to 150watts so at that spot it would be +-7.5 watts and 0-50watts it would be +-2.5 watts all with the
/archives//html/TenTec/2008-06/msg00463.html (8,385 bytes)

146. Re: [TenTec] Orion II A9 Board Failure...Again! (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Thu, 26 Jun 2008 16:18:13 -0700 (PDT)
The R.L.Drake L7 amp power supply had the same issues. The same for their other amps. My L-7 amp was no different. What I did was buying some computer grade caps put them in series with equalizing re
/archives//html/TenTec/2008-06/msg00464.html (10,074 bytes)

147. Re: [TenTec] 555 Scout HELP (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Fri, 27 Jun 2008 13:50:05 -0700 (PDT)
Going into self oscillation is signs of some sort of feed back. I agree, not familiar with this radio Jerry is no doubt right. Just as a side note check Microphone solder joint at the connectors to s
/archives//html/TenTec/2008-06/msg00477.html (7,104 bytes)

148. Re: [TenTec] Orion II A9 Board Failure...Again! (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Fri, 27 Jun 2008 14:07:37 -0700 (PDT)
Jerry your right, but after thinking more about it and whats going on it is a function of both drying out and the chemical action because of the past getting eather more acidic or alkaline. I only go
/archives//html/TenTec/2008-06/msg00478.html (8,502 bytes)

149. [TenTec] Baluns (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Mon, 5 May 2008 06:02:38 -0700 (PDT)
Voltage balun or Current balun. With out any fancy clamp on RF current meters and the sort, what are some simple things can the average ham can do to determine if a Current balun or a Voltage balun i
/archives//html/TenTec/2008-05/msg00097.html (7,600 bytes)

150. [TenTec] Lowest loss matching an antenna for my Argonaut 509 (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 7 May 2008 03:21:15 -0700 (PDT)
If I read every thing and understood what I have read and what Gerald just stated, it would be a CURRENT BALUN. What is your impedance at the feed point at the antenna? Keep The Faith, Jim K9TF/WA9YS
/archives//html/TenTec/2008-05/msg00126.html (9,538 bytes)

151. [TenTec] Balun (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 7 May 2008 04:17:37 -0700 (PDT)
Thanks Doc Gerald. That solved a few mysteries for me. Now I know why my vertical worked well on the roof of the house because I put a voltage balun at the feed point. It was luck because thats all w
/archives//html/TenTec/2008-05/msg00127.html (8,646 bytes)

152. [TenTec] Balun Isolator (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 7 May 2008 04:25:08 -0700 (PDT)
Hi alll Another confusion. An isolator or to obtain isolation or high inductance on the out side of the coax feed line is to wrap 6 to 8 turns around a plastic 5 lbs coffee can. Some people call this
/archives//html/TenTec/2008-05/msg00128.html (8,290 bytes)

153. [TenTec] Lowest loss matching an antenna for my Argonaut 509 (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 7 May 2008 19:04:53 -0700 (PDT)
150 ohms at resonance you say thats 3:1 Thats a tuff one to find unless Palomar Engineering or Amidon still making made to order specialty baluns. A 4:1 would be about 25% less effecient or power los
/archives//html/TenTec/2008-05/msg00155.html (10,926 bytes)

154. [TenTec] Balun (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 7 May 2008 19:34:12 -0700 (PDT)
If the antenna is an inverted vee then the current balun would not be effective to remove the currents on the coax cable but would be effective evenly distrbute the current on then antenna. Right? Th
/archives//html/TenTec/2008-05/msg00158.html (8,432 bytes)

155. [TenTec] Balun Isolator (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Wed, 7 May 2008 20:01:17 -0700 (PDT)
Ok, some of what you said I have seen before. Makes sense. You know the term balun is just too loose of a term and covers a lot of ground and leaves it open for miss interpretation. Choke is a good d
/archives//html/TenTec/2008-05/msg00162.html (9,703 bytes)

156. Re: [TenTec] Lowest loss matching an antenna for my Argonaut 509 (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Thu, 8 May 2008 15:20:36 -0700 (PDT)
Lowest loss matching an antenna has to be the antenna that does not need a metal composite balun or a tuner and use only Type "N" connectors through out. With that said, and saw some one say use sing
/archives//html/TenTec/2008-05/msg00181.html (10,469 bytes)

157. Re: [TenTec] Balun Isolator (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Thu, 8 May 2008 16:34:08 -0700 (PDT)
Current flowing on the in-side of the coax? I all ways thought RF flowed on the surface. If this whole thing is out of balance this is what causes every one problems. Back to the beginning again. A c
/archives//html/TenTec/2008-05/msg00183.html (9,578 bytes)

158. Re: [TenTec] Lowest loss matching an antenna for my Argonaut (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Thu, 8 May 2008 20:58:44 -0700 (PDT)
I did not say dipole, I said INVERTED VEE. Type N connector from what I can remember from a friends test at Zenith on the HF freqs had for all practical purposes a flat line impedance across the conn
/archives//html/TenTec/2008-05/msg00194.html (8,718 bytes)

159. Re: [TenTec] Lowest loss matching an antenna for my Argonaut (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Sat, 10 May 2008 15:41:13 -0700 (PDT)
Thank you Doc Jerry. 50 pairs of them, go figure. Who would have thought. How long after HP bought the company was the Q meter still being used as a standard test instrument ? Keep The Faith, Jim K9T
/archives//html/TenTec/2008-05/msg00219.html (8,085 bytes)

160. [TenTec] 95% Shield (score: 1)
Author: Jim WA9YSD <wa9ysd@yahoo.com>
Date: Thu, 15 May 2008 03:52:47 -0700 (PDT)
How much power in watts or milliwatts does it take to interfere with the TV with an outside antenna when operating HF? How much with cable TV? Lets say that the outside antenna and cable TV is in an
/archives//html/TenTec/2008-05/msg00280.html (7,892 bytes)

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