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1. [TenTec] Argonaut 505 (score: 1)
Author: "JAMES T HANLON" <knjhanlon@msn.com>
Date: Wed, 17 Dec 2003 09:49:10 -0700
Y'all, I just became a new owner of an Argonaut 505, the very first Argonaut and my first Ten Tec rig. It came with the model 210 power supply. I am noticing a 120 Hz hum on the transmitter note on C
/archives//html/TenTec/2003-12/msg00656.html (6,972 bytes)

2. Re: [TenTec] Argonaut 505 (score: 1)
Author: "JAMES T HANLON" <knjhanlon@msn.com>
Date: Wed, 17 Dec 2003 13:16:02 -0700
Bill, Thanks for the input. I am monitoring with another receiver in the shack and with the Argonaut driving a Heathkit Cantenna. I can hear an obvious difference when I change the power supplies, th
/archives//html/TenTec/2003-12/msg00664.html (10,257 bytes)

3. Re: [TenTec] Argonaut 505 (score: 1)
Author: "JAMES T HANLON" <knjhanlon@msn.com>
Date: Wed, 17 Dec 2003 13:16:02 -0700
Bill, Thanks for the input. I am monitoring with another receiver in the shack and with the Argonaut driving a Heathkit Cantenna. I can hear an obvious difference when I change the power supplies, th
/archives//html/TenTec/2003-12/msg00665.html (10,262 bytes)

4. Re: [TenTec] Argonaut 505 - The Answer (score: 1)
Author: "JAMES T HANLON" <knjhanlon@msn.com>
Date: Thu, 18 Dec 2003 12:13:16 -0700
I want to thank everyone who replied to my message for help with hum on my Argonaut 505. In retrospect I feel a good bit like Click and Clack, those well known NPR Auto Mechanics, with their Weekly P
/archives//html/TenTec/2003-12/msg00716.html (10,673 bytes)

5. Re: [TenTec] Argonaut 505 - The Answer (score: 1)
Author: "JAMES T HANLON" <knjhanlon@msn.com>
Date: Thu, 18 Dec 2003 13:01:01 -0700
Alan, It appears to be a magnetic field problem. When I operate the rig from a battery and bring my soldering gun near the top center, it completely annihilates the output. Besides moving the power s
/archives//html/TenTec/2003-12/msg00720.html (7,860 bytes)

6. [TenTec] Re: EMI (was Argonaut 505 - The Answer) (score: 1)
Author: "JAMES T HANLON" <knjhanlon@msn.com>
Date: Thu, 18 Dec 2003 15:20:46 -0700
Alan, For now I will take the easy way out and keep the transceiver away from AC fields. I'll bring a piece of steel down from the attic next time I'm up there and lay it on top of the transceiver be
/archives//html/TenTec/2003-12/msg00728.html (8,502 bytes)

7. Re: [TenTec] crisp handheld mic (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Wed, 10 Mar 2004 10:08:45 -0700
Modern D-104's use a "ceramic" element rather than a "crystal" element and they are not bothered by heat. Jim, W8KGI _______________________________________________ TenTec mailing list TenTec@contest
/archives//html/TenTec/2004-03/msg00234.html (8,188 bytes)

8. Re: [TenTec] 80m antenna suggestion (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Fri, 12 Mar 2004 10:34:29 -0700
Chris, For 20 years when I lived in Columbus, Ohio, I used a 67 foot, center fed "hertz" with open-wire feed line and a tuner. The feed line was long enough to reach from the center of the antenna to
/archives//html/TenTec/2004-03/msg00299.html (11,031 bytes)

9. Re: [TenTec] 80m antenna suggestion (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Sat, 13 Mar 2004 19:39:26 -0700
Rick, You got me interested, so I fired up EZNEC and tried analyzing an antenna such as you describe. I modeled it as having four sides, each 66 feet long, and 30 feet above a "medium" ground (conduc
/archives//html/TenTec/2004-03/msg00381.html (11,842 bytes)

10. Re: [TenTec] 80 meter loops (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Mon, 15 Mar 2004 11:08:19 -0700
Noel, I would suggest that you either 1) take the ARRL Antenna Modeling Course, as I am doing right now, or 2) get someone who is a competent antenna modeler to do some analysis on the antenna variat
/archives//html/TenTec/2004-03/msg00431.html (8,974 bytes)

11. Re: [TenTec] Capture area (was 80 meter loops) (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Sat, 20 Mar 2004 08:56:43 -0700
Jason, An end-fed antenna that is an integral multiple of 1/2 wavelength will present a very high impedance. An end-fed antenna that is 1/4, 3/4, 5/4 etc wavelengths long will present a low impedance
/archives//html/TenTec/2004-03/msg00634.html (8,948 bytes)

12. Fw: [TenTec] Capture area (was 80 meter loops) (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Sat, 20 Mar 2004 12:09:56 -0700
Jason, For some reason this message bounced when I sent it directly to you so I'll send it via the Ten Tec reflector. My apologies to the other guys. Jim _____________________________________________
/archives//html/TenTec/2004-03/msg00643.html (16,498 bytes)

13. Re: [TenTec] The problem with directly end fed wires (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Tue, 23 Mar 2004 12:14:31 -0700
For more than 40 of the 51 years I've been licensed, my antenna has been a "Center-Fed Zepp" ala what Bob described. For about 20 of those years I lived on a city-sized lot in Columbus, Ohio, and the
/archives//html/TenTec/2004-03/msg00682.html (11,718 bytes)

14. [TenTec] BPL, Harmful Interference (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Wed, 7 Apr 2004 10:36:29 -0600
Guys, I'd appreciate some help in finding the definition of "harmful interference" per 47 C. F. R. paragraph 15.5(b). I'm working on my letter to the FCC and my congressional representatives. Thanks,
/archives//html/TenTec/2004-04/msg00055.html (6,593 bytes)

15. Re: [TenTec] 450 ohm Feed Line (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Wed, 14 Apr 2004 23:11:07 -0600
Just remember when you are using open-wire feedline that you are not matching the feedline to the feed-point impedance of the antenna and therefore you are running a high swr on the feedline. That's
/archives//html/TenTec/2004-04/msg00182.html (9,298 bytes)

16. Re: [TenTec] 450 Ohm feedline (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Fri, 16 Apr 2004 10:15:37 -0600
I'm an old Bell Labs engineer, and I can recall being taught in our "CDT" (Communications Development Training) courses that the pairs were twisted to cut down on the cross talk from other pairs bund
/archives//html/TenTec/2004-04/msg00211.html (8,632 bytes)

17. Re: [TenTec] New Product Announcement (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Sat, 17 Apr 2004 13:19:00 -0600
Thank you Hashifisti Scratchi (Al) Jim, W8KGI _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2004-04/msg00247.html (7,500 bytes)

18. Re: [TenTec] 450 Ohm feedline tuners (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Sat, 17 Apr 2004 13:51:51 -0600
Guys, Any older ARRL Handbook will give you information on building your own "antenna tuner" for balanced transmission lines. Perhaps the most simple example would be a parallel-tuned circuit resonan
/archives//html/TenTec/2004-04/msg00248.html (11,186 bytes)

19. Re: [TenTec] Bush behind BPL... (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Wed, 28 Apr 2004 09:24:33 -0600
"If you would like to send a comment to President Bush about this technology speech, the link shown will direct you to the web site where you can file one. the category is Science and Technology. Pl
/archives//html/TenTec/2004-04/msg00563.html (8,371 bytes)

20. [TenTec] Skywave BPL? (score: 1)
Author: "JAMES HANLON" <knjhanlon@msn.com>
Date: Fri, 7 May 2004 10:22:03 -0600
Guys, Yesterday and today I fired up one of my boatanchor, general coverage receivers, a Hammarlund SP600, and I am hearing a whole string of "modulated" carriers between about 22 and 27 mHz that cou
/archives//html/TenTec/2004-05/msg00135.html (9,182 bytes)

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