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381. Re: [TenTec] Trading radios (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 01 Jun 2014 11:21:12 -0700
No, the first choke should be at the antenna feedpoint. W2AJI is exactly right. A choke at the radio would only matter if the shield of coax connector was not bonded to the chassis. So far, I've not
/archives//html/TenTec/2014-06/msg00008.html (10,539 bytes)

382. Re: [TenTec] Trading radios (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 01 Jun 2014 11:34:03 -0700
Ain't no such thing as a ground loop. The new to me Omni VI+ with 962 power supply has an odd quirk, in that the power supply quits as I increase power, but only on 40M, with either of my two antenna
/archives//html/TenTec/2014-06/msg00009.html (12,059 bytes)

383. Re: [TenTec] Trading radios (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 01 Jun 2014 19:06:17 -0700
I've spent thousands of hours writing extensively about all of this stuff on my website. I refuse to do it again for someone who is too lazy to go there and read it. BTW -- I've read about "ground lo
/archives//html/TenTec/2014-06/msg00018.html (9,328 bytes)

384. Re: [TenTec] Trading radios (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 01 Jun 2014 19:08:10 -0700
WRONG. A good choke at the feedpoint of a balanced, reasonably well matched antenna is ALWAYS a good thing. 73, Jim K9YC
/archives//html/TenTec/2014-06/msg00019.html (9,681 bytes)

385. Re: [TenTec] Trading radios (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 01 Jun 2014 21:28:15 -0700
As you hinted at in early post on the topic, the leakage from coax is generally quantified by the Transfer Impedance of the shield, which is the ratio of the voltage on the shield to the differential
/archives//html/TenTec/2014-06/msg00022.html (10,237 bytes)

386. Re: [TenTec] Trading radios (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Mon, 02 Jun 2014 01:21:51 -0700
W7EL's published work on this is at least 25 years old. Both of us have learned a lot in 25 years. 73, Jim K9YC
/archives//html/TenTec/2014-06/msg00024.html (9,533 bytes)

387. [TenTec] Power Poles (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Wed, 04 Jun 2014 12:57:22 -0700
Not in my universe. Now, it's certainly possible to mount them backwards, and yes, they will mate in reverse. But that's a cockpit problem. :) Another mistake you can make with a PowerPole pair is to
/archives//html/TenTec/2014-06/msg00064.html (10,321 bytes)

388. Re: [TenTec] Estate Sale - Ten Tec Titan 425 For Sale (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Fri, 13 Jun 2014 12:03:28 -0700
Having helped a widow dispose of her husband's gear, I strongly suggest that you do some homework to establish the current market value of everything before you list it. Poke around eBay, eham, qrz,
/archives//html/TenTec/2014-06/msg00103.html (9,369 bytes)

389. Re: [TenTec] Estate Sale - Ten Tec Titan 425 For Sale (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Mon, 30 Jun 2014 10:37:55 -0700
Will, Two very important things. The value of the amp depends a lot on the condition of the tubes. If you have not done so already, you should have that checked out by someone familiar with amps of t
/archives//html/TenTec/2014-06/msg00268.html (12,353 bytes)

390. Re: [TenTec] Wide roofing filter for the RX-366? (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Fri, 02 May 2014 09:43:49 -0700
Roofing filters serve the function of protecting the IF from very strong IN-BAND signals, like between CW and SSB signals on the same band. On most rigs, out of band signals, like between stations on
/archives//html/TenTec/2014-05/msg00017.html (10,129 bytes)

391. Re: [TenTec] (no subject) (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 06 May 2014 19:48:10 -0700
What sort of operating do you do? Have you lived with both? The Elecraft P3 has some very slick features, including the fact that it can be calibrated to voltage at the RX input. Also quick recall of
/archives//html/TenTec/2014-05/msg00034.html (9,865 bytes)

392. Re: [TenTec] (no subject) (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 06 May 2014 21:05:08 -0700
Hi James, Sorry if I misinterpreted. The SVGA is FAR more than a big screen. It has its own FFT, with more bins, and can show MUCH longer waterfall times. This is VERY useful in a contest when you're
/archives//html/TenTec/2014-05/msg00036.html (10,739 bytes)

393. Re: [TenTec] (ham station computer choice) (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Wed, 07 May 2014 23:41:54 -0700
I tried to run my small consulting practice on OS/2 for several years in the80s, and spent more time getting applications I needed for my practice to run in OS/2. Since I was in the consulting biz, n
/archives//html/TenTec/2014-05/msg00099.html (10,856 bytes)

394. Re: [TenTec] (ham station computer choice) (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 08 May 2014 06:54:22 -0700
I would not. As Rick observes, I'm interested in ham radio, not computers. The best contest loggers are written for Windoze. End of conversation. 73, Jim K9YC
/archives//html/TenTec/2014-05/msg00104.html (10,661 bytes)

395. Re: [TenTec] (ham station computer choice) (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 08 May 2014 09:49:27 -0700
The question I've tried to answer is about contest logging, not general logging. The demands can be different, depending on what you are asking the computer to do. For contest logging, the logging so
/archives//html/TenTec/2014-05/msg00115.html (10,325 bytes)

396. Re: [TenTec] Eagle problem? (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 08 May 2014 22:53:55 -0700
No -- it is almost certainly a Pin One Problem. I don't know how they are building them now, but my Omni V had Pin One Problems at all the connectors on the back panel. Didn't check the mic connector
/archives//html/TenTec/2014-05/msg00141.html (9,135 bytes)

397. Re: [TenTec] FS: TEN-TEC 238 Antenna Tuner (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 08 May 2014 23:21:40 -0700
This is a very nice tuner, and I've owned seven of them (some 229, some 238s). BUT -- to call this a 2kW tuner you've got to be either a used car salesman or smoking some really good weed. The caps i
/archives//html/TenTec/2014-05/msg00142.html (7,629 bytes)

398. Re: [TenTec] Eagle problem? (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 08 May 2014 23:43:31 -0700
BRAVO, Jim. It's guys like you that make a difference. FWIW, I owned a 1999 S80 that I loved, and I ran 100W HF in it using hamsticks on a license plate mount. I had to bond from the coax to the trun
/archives//html/TenTec/2014-05/msg00143.html (9,534 bytes)

399. Re: [TenTec] Alpha Amplifiers and TEN-TEC Merge (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Mon, 12 May 2014 20:04:04 -0700
It sounds to me as if the recent retirement of the founding, and presumably only, shareholders is behind this. Let's not forget the guy I consider more important in making Ten Tec the great company t
/archives//html/TenTec/2014-05/msg00233.html (10,461 bytes)

400. Re: [TenTec] Alpha Amplifiers and TEN-TEC Merge (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Mon, 12 May 2014 20:07:43 -0700
Ten Tec had been building solid state rigs (the first?) for 5-10 years before I bought an Omni A series D in 1980. 73, Jim K9YC
/archives//html/TenTec/2014-05/msg00234.html (10,282 bytes)

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