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221. [TenTec] Re: [QRPp-I] Argonaut V/516 Supply Voltage sensitivity. >=12.0Vdc (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Fri, 1 Nov 2002 17:04:00 -0600; One solution might be to get a DC to DC converter that will take in voltages even lower than 12 and produce a steady 12 output. However, I do not know the RFI specs on them. 73, Stuart K5KVH; /archives//html/TenTec/2002-11/msg00016.html (8,708 bytes)
222. [TenTec] Scout DC Supply Voltage sensitivity (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Fri, 1 Nov 2002 18:05:11 -0600; Right, right Jerry, on PA, I was not thinking of that; I am not sure what I meant. Doing two things at once here! Hi! If they already have the LDO's then, there is just a lower limit at 12! I know my; /archives//html/TenTec/2002-11/msg00018.html (9,221 bytes)
223. [TenTec] Supply Voltage sensitivity. >=12.0Vdc (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 4 Nov 2002 13:53:54 -0600; My standard is running 24 hours on battery at Field Day. Unless we are running digital mode like PSK 31 or packet, ONE deep cycle or even car battery will last 24 hours and still be 12.2 volts or bet; /archives//html/TenTec/2002-11/msg00047.html (8,665 bytes)
224. [TenTec] 20 m users' net (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 4 Nov 2002 19:29:15 -0600; Instead of calling it a net, call it a round table of Ten Tecs. 73, Stuart K5KVH; /archives//html/TenTec/2002-11/msg00072.html (7,456 bytes)
225. [TenTec] Scout DC Supply Voltage sensitivity (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 4 Nov 2002 21:12:56 -0600; Mine starts to drift at 11 volts or less. I think inside, a number of the circuits run on an 8 volt bus, which seems to jibe with your observations about voltage regulators. My Scout is fine at 12 vo; /archives//html/TenTec/2002-11/msg00078.html (8,401 bytes)
226. [TenTec] Scout DC Supply Voltage sensitivity (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Tue, 5 Nov 2002 17:45:35 -0600; Last night I set down with my Scout schematics and found they do have the low drop out LM 2940 in mine, (some 7 plus years old). Mine does not drift at 12 volts, (and I know of none that do). Down ar; /archives//html/TenTec/2002-11/msg00102.html (9,161 bytes)
227. [TenTec] A public Thank You! (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Wed, 6 Nov 2002 15:41:09 -0600; A good fix for that static build up, is never leave a radio connected to an antenna or even antenna switch, if wind and storms are possible. I use slip on Coax plugs and unplug after being on air. If; /archives//html/TenTec/2002-11/msg00127.html (6,814 bytes)
228. [TenTec] Scout DC Supply Voltage sensitivity (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Wed, 6 Nov 2002 15:49:14 -0600; Good thoughts Bob, on added loss areas for the Scout power. I usually use larger wire than any supplier uses for transceivers. Kenwood is the only one usually adequate to my preferences. 73, Stuart K; /archives//html/TenTec/2002-11/msg00128.html (8,522 bytes)
229. [TenTec] 40 meter antenna for my TT's (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Fri, 8 Nov 2002 15:14:45 -0600; If you want a gain Yagi of wire, you make a dipole for fed element, and another 5 per cent longer for reflector and one 5 per cent shorter as director. Spacing can be experimentally optimized from 0.; /archives//html/TenTec/2002-11/msg00160.html (7,101 bytes)
230. [TenTec] combo rigs was receiver so-called performance (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Fri, 8 Nov 2002 18:10:27 -0600; I think you should not leave the Omni VI off your list. Its resale will be in your range, when you decide. Its crystal mixing scheme is still a better receiver than anything else except a K2 perhaps.; /archives//html/TenTec/2002-11/msg00168.html (7,640 bytes)
231. [TenTec] Argo V Comments (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 11 Nov 2002 15:23:49 -0600; A lot of folks miss the point the ARGONAUT V is a vast step up from the SCOUT, and not intended to be a replacement for the OMNI 6 PLUS! I think the poster who wants all those bells in whistles shoul; /archives//html/TenTec/2002-11/msg00202.html (7,313 bytes)
232. [TenTec] Argo V Comments (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 11 Nov 2002 17:19:27 -0600; Well, when I had the Argonaut in my hands at Ham Com, there was a nice meter with SWR scale that should show an indication near the low end, and be obviously on transmit, when not in receive. An easy; /archives//html/TenTec/2002-11/msg00207.html (7,964 bytes)
233. [TenTec] Scout display problem (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Tue, 12 Nov 2002 15:37:02 -0600; As a can't lose first step, after looking at my Scout manual and schematics; I would reseat the connectors, and make sure the correct DC voltages are getting to the display digits. Solder joints to t; /archives//html/TenTec/2002-11/msg00218.html (7,609 bytes)
234. [TenTec] Scout display problem (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Tue, 12 Nov 2002 18:35:36 -0600; The display problem could indeed be a bad capacitor. I remember an on board bypass in the display board area of the schematic. Thanks Bill, W4NJF for saying his was this, and a fix was to put the rig; /archives//html/TenTec/2002-11/msg00219.html (7,446 bytes)
235. [TenTec] Argonaut V PSK-31 Problem (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 18 Nov 2002 15:18:22 -0600; Yes, read the manual, on how to hook up to PSK 31 computer. You should be able to use line in and out connections on both sides, and properly set the RF levels. Make sure you are set up to switch to; /archives//html/TenTec/2002-11/msg00349.html (7,094 bytes)
236. [TenTec] Herc II Power Source Redux (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Fri, 22 Nov 2002 14:20:19 -0600; I also was not familiar with any Astron model having an external sense line. Sense circuitry in lab power supplies have two extra terminals. You run small gauge wire out to the load from them, and it; /archives//html/TenTec/2002-11/msg00421.html (8,237 bytes)
237. [TenTec] Centurion fan replace? (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Tue, 26 Nov 2002 18:15:19 -0600; Hi Harry, Many times I have found that you can use a heat gun, or hair dryer, and lift the paper label to reveal the back bearing of these bans. A shot of an oil such as Triflow (teflon and oil lubri; /archives//html/TenTec/2002-11/msg00543.html (6,746 bytes)
238. [TenTec] IF gain pot (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 7 Oct 2002 14:13:53 -0500; Probably you are overloading subsequent stages by setting it arbitrarily to maximum. 73, Stuart K5KVH It should be set to give optimum sensitivity below the threshold of splatter in the following sta; /archives//html/TenTec/2002-10/msg00162.html (7,619 bytes)
239. [TenTec] Omni VI+ and Heil mics (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Tue, 8 Oct 2002 12:55:47 -0500; Rob, I think many of those who report hum problems need to look to their grounding practices, since you demonstrate none of the problems. There is no great difference in the audio circuits of the mod; /archives//html/TenTec/2002-10/msg00182.html (7,131 bytes)
240. [TenTec] TWINCOM feedline ????????????? (score: 1): Author: rohre@arlut.utexas.edu (Stuart Rohre); Date: Mon, 14 Oct 2002 17:44:29 -0500; George, Sorry there is no free lunch. Higher impedance lines are less lossy, that is true. But, the Twincom appears to be twin coax, and has an obvious dielectric around the wire in the picture. Thus; /archives//html/TenTec/2002-10/msg00265.html (8,997 bytes)

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