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201. Re: [TenTec] Burghardt amateur center (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sat, 22 Aug 2009 14:45:53 -0700
Yes, and this is first class gear. Someone just posted to the NCCC email list preliminary info for a new ICOM transceiver that claims decent VHF/UHF performance. Some of our members thought that it m
/archives//html/TenTec/2009-08/msg00180.html (8,971 bytes)

202. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 28 Aug 2009 08:56:39 -0700
Most output stages used to drive headphones are really small power amplifiers, and have rather low impedance. For these output stages, the lower the impedance of headphones, the more current they wil
/archives//html/TenTec/2009-08/msg00222.html (8,214 bytes)

203. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 28 Aug 2009 22:57:59 -0700
No. In terms of voltage sensitivity, it's exactly the opposite. 73, Jim K9YC _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mail
/archives//html/TenTec/2009-08/msg00245.html (7,724 bytes)

204. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sat, 29 Aug 2009 22:05:47 -0700
Thanks for the detailed analysis, Hank. That's pretty much what I expected. Consider the output stage a constant voltage source with 27 ohms in series. In general, output stages don't want to be heav
/archives//html/TenTec/2009-08/msg00267.html (9,089 bytes)

205. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 30 Aug 2009 11:19:15 -0700
This is crazy unless the user has very severe hearing loss. There is no good reason the existing output stage shouldn't work just fine with enough GAIN in the audio chain and headphones of reasonable
/archives//html/TenTec/2009-08/msg00282.html (9,182 bytes)

206. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 30 Aug 2009 12:23:58 -0700
Lemme see if I understand this. I should spend a week finding and buying parts, making a circuit board, putting it into some kind of reasonable package, designing and testing it, all because the manu
/archives//html/TenTec/2009-08/msg00285.html (10,166 bytes)

207. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 30 Aug 2009 14:44:38 -0700
That's the point. Jim _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2009-08/msg00288.html (9,288 bytes)

208. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 31 Aug 2009 22:28:49 -0700
"Give out" is a predjudical phrase. Modern headphones are full range and low distortion. That generally IMPROVES intelligibility rather than hurting it. Besides -- by their nature, modern ham rigs ha
/archives//html/TenTec/2009-08/msg00310.html (9,378 bytes)

209. Re: [TenTec] Head-Phone volume in Orion2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Wed, 02 Sep 2009 09:04:29 -0700
There's a discussion of this in my tutorial on Ham Interfacing (computers to radios, mics to radios, etc.). and in an appendix on audio in my RFI Tutorial. http://audiosystemsgroup.com/HamInterfacing
/archives//html/TenTec/2009-09/msg00014.html (9,058 bytes)

210. Re: [TenTec] Think about trading for another HF rig? ; the grass isn't (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Tue, 22 Sep 2009 10:22:54 -0700
certainly I strongly agree. I've read what G4ILO has written and corresponded a bit with him. I find his attitude and expectations completely unreasonable. The user interface varies widely from one r
/archives//html/TenTec/2009-09/msg00201.html (12,712 bytes)

211. Re: [TenTec] Think about trading for another HF rig? ; the grass isn't (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Tue, 22 Sep 2009 10:31:39 -0700
They are QUITE appropriate. W4ZV is both a very smart engineer and a skilled operator. Unlike many who post here, Bill is not a mindless cheerleading partisan for Ten Tec, but rather a well educated,
/archives//html/TenTec/2009-09/msg00202.html (7,845 bytes)

212. Re: [TenTec] It sure ain't easy (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 27 Sep 2009 11:17:58 -0700
Congratulations on having a fine XYL! My view of this is that both the Omni and Yaesu are fine rigs, but you won't get much for them if you sell them. That's mostly because so many guys have been sel
/archives//html/TenTec/2009-09/msg00264.html (7,999 bytes)

213. Re: [TenTec] Ten-Tec used/demo gear list October 9, 2009 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 09 Oct 2009 11:57:06 -0700
It is highly deceptive to call this a "Closet Kilowatt" in today's market. The Hercules II is rated for about 500W output. Back in the 70's, FCC Rules defined ham power levels on the basis of Input P
/archives//html/TenTec/2009-10/msg00086.html (8,565 bytes)

214. Re: [TenTec] Ten-Tec used/demo gear list October 9, 2009 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 09 Oct 2009 21:19:40 -0700
Huh? The difference between 1kW and 500W is 3 dB. I know folks who will go to war for only 1dB! Of course, they are folks who USE their radios, not worship them. 73, Jim Brown K9YC __________________
/archives//html/TenTec/2009-10/msg00096.html (8,141 bytes)

215. [TenTec] Customer Service (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 12 Oct 2009 15:41:42 -0700
Please don't start a thread on this, but I would like to observe that there's probably not another company on the planet whose Chief Engineer/Owner would respond directly, or as quickly to the proble
/archives//html/TenTec/2009-10/msg00133.html (8,601 bytes)

216. Re: [TenTec] Omni VII: RF in TX Audio (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Sun, 25 Oct 2009 09:31:39 -0700
The virtue of the #31 material is that when you use the right number of turns, it is effective for suppression the AM broadcast band to VHF. As noted in my tutorial (cited in an earlier post), the c
/archives//html/TenTec/2009-10/msg00216.html (8,026 bytes)

217. Re: [TenTec] Keyer Fo Omni V (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 02 Nov 2009 07:45:40 -0800
I used AEA keyers with my Omni V. Worked quite well, and they're very nice keyers. 73, Jim K9YC _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.
/archives//html/TenTec/2009-11/msg00004.html (6,981 bytes)

218. Re: [TenTec] Keyer Fo Omni V (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Mon, 02 Nov 2009 09:59:04 -0800
Since when are we "voting" on this? Ron wanted to know what keyers work. He's getting a bunch of options from guys who have solved that problem. Who knows what he's going to find used at a good price
/archives//html/TenTec/2009-11/msg00011.html (7,988 bytes)

219. Re: [TenTec] Final Firmware O2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 13 Nov 2009 10:15:50 -0800
I don't want to turn this reflector into an Elecraft reflector, but I do feel the need to correct misinformation. This may come as a shock to Orion owners, but nearly all firmware updates to the K3 p
/archives//html/TenTec/2009-11/msg00098.html (9,121 bytes)

220. Re: [TenTec] Final Firmware O2 (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 13 Nov 2009 12:16:13 -0800
I specifically said that I was posting to correct mis-information in earlier posts with this subject line. Gee, I didn't know that the purpose of this reflector was cheerleading for Ten Tec, or makin
/archives//html/TenTec/2009-11/msg00100.html (8,566 bytes)

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