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Total 159 documents matching your query.

61. Re: [TenTec] The ORION II sure makes me happy (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Sat, 01 Apr 2006 07:10:57 -0600
==end snip== Well, I think you have phrased a "whine" there! (maybe without realizing it, but maybe you have your poker face April 1st tounge in cheek on there with the little ";-)" symbol..) In any
/archives//html/TenTec/2006-04/msg00022.html (11,325 bytes)

62. Re: [TenTec] eBay auction (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Mon, 20 Mar 2006 06:31:41 -0600
I believe it was an error on the part of the sender. It was meant for his son and he mistakenly sent it to the list. Why would he mention that he took some literay liberties in the description which
/archives//html/TenTec/2006-03/msg00969.html (8,417 bytes)

63. Re: [TenTec] Orion Question (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 30 Mar 2006 11:27:39 -0600
If you decide to go with the relay, remember to compensate for the inductive kick when relay coil circuit is opened. Use a diode across the relay coil with the cathode side towards the +12 source. Ji
/archives//html/TenTec/2006-03/msg01332.html (10,654 bytes)

64. Re: [TenTec] S-meter and RF Gain (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 09 Feb 2006 21:23:59 -0600
snip It seems to me if you decrease rf gain so should signal levels decrease hence lower s-meter readings. I liked that way in the OmniVI and as I remember in the other Omnis and Corsairs. snip Varyi
/archives//html/TenTec/2006-02/msg00342.html (9,315 bytes)

65. Re: [TenTec] Orion II and other $$$ deliveries (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Fri, 10 Feb 2006 22:20:08 -0600
Its pretty simple here at this QTH. UPS delivers to a pallet mill that is on the opposite side of the highway any packages that are addressed to me. Fed Ex puts packages in a waterproof bag and hangs
/archives//html/TenTec/2006-02/msg00390.html (11,408 bytes)

66. Re: [TenTec] Hi Fi SSB (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Fri, 17 Feb 2006 06:29:38 -0600
Listening to "HI-FI SSB" sounds good, provided the content is good, such as fine music that benefits from the additional frequency spectrum . But I agree with you that the additional bandwidth used i
/archives//html/TenTec/2006-02/msg00796.html (8,562 bytes)

67. Re: [TenTec] Hi Fi SSB (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Fri, 17 Feb 2006 07:11:40 -0600
Why not? If someone wants to run a wide-fi signal on an otherwise unoccupied frequency segment, why not? Clearly, at some point rules about interference and good practice, etc. come into play. But w
/archives//html/TenTec/2006-02/msg00797.html (8,624 bytes)

68. Re: [TenTec] Hi Fi SSB (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Fri, 17 Feb 2006 14:14:07 -0600
snip I'm confused, isn't it also a natural tendency for those in the Ham Radio "hobby" to enjoy putting out a stronger signal. It sure sounds a lot better on the air. Where should we stop at maximizi
/archives//html/TenTec/2006-02/msg00799.html (9,233 bytes)

69. Re: [TenTec] Triton IV Digital (544) Problem (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Mon, 20 Feb 2006 14:25:07 -0600
I used to own a TT Model 544, bought it new in the late sixties. Kept until last year. The digital display does cause birdies at some points. Solution: avoided those spots. It will be interesting to
/archives//html/TenTec/2006-02/msg00965.html (8,882 bytes)

70. Re: [TenTec] Radio Science + QSK = Radar (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 03 Jan 2006 17:54:50 -0600
The Soviets were not the only ones using OTHR that utilized HF (some in ham bands). GE did testing that encroached on the ham bands (at times). I am saying that as I saw documentation that indicated
/archives//html/TenTec/2006-01/msg00120.html (10,839 bytes)

71. Re: [TenTec] Radio Science + QSK = Radar (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 05 Jan 2006 06:56:16 -0600
Some FAA Technicians were trained on the "FPS" series of long range radars which the FAA maintained at the time (at some "joint use" sites and FPS's acquired at a few FAA Only sites) at Keesler AFB.
/archives//html/TenTec/2006-01/msg00208.html (12,205 bytes)

72. Re: [TenTec] openwire feed OT (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 31 Jan 2006 12:55:16 -0600
snip The impeadance of a dipole in free space is about 72 ohms at the center feed point which is why you can feed it directly with coax. Of course site conditions usually drop the dipoles impeadance
/archives//html/TenTec/2006-01/msg01019.html (9,354 bytes)

73. Re: [TenTec] Fw: Your semi-annual Astron tip... (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 29 Nov 2005 17:51:55 -0600
snip I dare say other models of power supply might benefit from the same modification. Does anyone know of a case where a particular brand of power supply should NOT have the negative strapped to gro
/archives//html/TenTec/2005-11/msg00604.html (9,262 bytes)

74. Re: [TenTec] ARRL Review of FT9000 (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 06 Jul 2005 06:02:37 -0500
snip When I was a youngster of about 13, deciding what receiver I wanted to put with my DX-40 when I graduated up from the BC-455 I started out with, I used to go through the Allied catalog and count
/archives//html/TenTec/2005-07/msg00171.html (9,870 bytes)

75. Re: [TenTec] One More Time (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Sat, 23 Jul 2005 07:03:49 -0500
snip Now it seems that we keep forgetting, ham radio is only a hobby. Expensive one to some, not so expensive to others. It relative. It's no different and not much more expensive in many cases than
/archives//html/TenTec/2005-07/msg00892.html (8,616 bytes)

76. Re: [TenTec] RFI question for Orion and other TT rigs (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Tue, 28 Jun 2005 08:58:52 -0500
Aluminium provides more than adequate shielding against both magnetic and electric fields at shortwave frequencies. I am not sure about the effectiveness of aluminium in shielding "magnetic" fields.
/archives//html/TenTec/2005-06/msg00727.html (10,745 bytes)

77. Re: [TenTec] RFI question for Orion and other TT rigs (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 29 Jun 2005 20:23:32 -0500
Thanks for the info. I guess the shielding using ferrous (hi mu) was for low frequencies. 73, Jim wd4air "magnetic" interference. At 60 Hz or audio frequencies aluminium is not effective in shielding
/archives//html/TenTec/2005-06/msg00754.html (10,441 bytes)

78. [TenTec] Identification of filters in my Corsair (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 05 May 2005 17:04:49 -0500
I am wanting the Ten-Tec idntification of the crystal filters in my Corsair. On the PBT 80979 Rev A board the .25 position. I have a 6 pole filter with two banks of three each crystals. On one crysta
/archives//html/TenTec/2005-05/msg00077.html (8,858 bytes)

79. Re: [TenTec] Identification of filters in my Corsair (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Thu, 05 May 2005 21:55:57 -0500
Very enlightening, thanks, that component date code is also very helpful. I got more than I asked for and I appreciate it. 73, Jim wd4air 282 285 I'm not aware of the 2.4 kHz filter ever being offere
/archives//html/TenTec/2005-05/msg00081.html (11,109 bytes)

80. [TenTec] Burned (score: 1)
Author: "James Duffer" <dufferjames@hotmail.com>
Date: Wed, 11 May 2005 13:13:42 -0500
Just because someone is a ham, doesn't necessarily make them immune to tempatations, greed and deceit etc. I used to think otherwise until I dealt with a "ham" on a reflector. It only cost me a TS-53
/archives//html/TenTec/2005-05/msg00180.html (8,065 bytes)

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