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321. [Amps] Alpha vs Henry (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 4 Apr 2011 06:41:58 -0700
Exactly how did you use this amp at these power levels? I hope you're not one of those LIDS who cheats by running higher than legal power. 73, Jim K9YC &&& Well, he`s going to need at least 1900 w pe
/archives//html/Amps/2011-04/msg00090.html (9,145 bytes)

322. [Amps] 4 wire 240VAC service? What to do now? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 5 Apr 2011 01:35:44 -0700
I looked at my Federal Pioneer sub panel and I do not see a neutral to enclosure (ground) bonding screw or any where a screw has been removed. Doug look closely at any main 100/200A panel.... you wil
/archives//html/Amps/2011-04/msg00157.html (10,809 bytes)

323. [Amps] Silver plated copper strap source anyone? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 5 Apr 2011 10:01:05 -0700
Anyone have a good source for some new 1/4", 3/8", and 1/2" silver plated copper strap suitable for use in wiring the bandswitch/tank-circuit up or creating a coil on an amp/tuner? -bob surplus scaps
/archives//html/Amps/2011-04/msg00178.html (11,498 bytes)

324. [Amps] Alpha vs Henry (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 02:32:33 -0700
Cheat? In what way? Sorry, I don't contest. Don't tell me you one of those who believes all cars should only make just enough HP to reach the speed limit as anything above that would be frivolous. My
/archives//html/Amps/2011-04/msg00211.html (9,110 bytes)

325. [Amps] Alpha vs Henry (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 02:55:35 -0700
Yup, but when I checked at Visalia it was sending a string of Dit's. Not the same key down modulated carrier. -Mike --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@contest
/archives//html/Amps/2011-04/msg00212.html (9,662 bytes)

326. [Amps] Alpha vs Henry (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 03:53:41 -0700
True, but as we've gone through on here several times, it's not a simple matter to build a 2500 to 3000 watt switching power supply with good regulation, low ripple, and no noise. It's done and the l
/archives//html/Amps/2011-04/msg00214.html (10,075 bytes)

327. [Amps] Alpha vs Henry (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 04:22:19 -0700
Gentlemen: If you are pushing for enhanced reliability in a Ham manufactured amp, run above its ratings, say a Heathkit SB 220, and focus on the heat in the transformer being a power limiting, or a l
/archives//html/Amps/2011-04/msg00216.html (11,045 bytes)

328. [Amps] Where is power measured ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 05:11:49 -0700
Someone mentioned that in the US, the power is measured at the back of the amp. Your rules don't stipulate where it's actually measured. Dave Leeson, and other's, contacted FCC officials, and the FCC
/archives//html/Amps/2011-04/msg00217.html (9,522 bytes)

329. [Amps] Alpha vs Henry (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 06:44:52 -0700
I will look quite old against a Ferrari 599GTO, Porsche 911 or Audi R8 525 hp motor...[ 5.2L 8700 rpm, normally aspirated V-8] For a little less, you can get the 430 hp version for 'only' $155,500 No
/archives//html/Amps/2011-04/msg00231.html (9,841 bytes)

330. [Amps] Where is power measured ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 07:39:46 -0700
97.3(b)(6) and 97.313(b) require that maximum allowable power occur at the transmitter output (aka, "TPO"). I prefer it that way rather than the FCC start regulating power based on ERP or EIRP. Paul,
/archives//html/Amps/2011-04/msg00236.html (9,025 bytes)

331. [Amps] what is a 4 wire 240VAC service (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 6 Apr 2011 20:53:49 -0700
Both sides agree on the reason for this: "We have a perfectly good standard. You people over there weren't listening!" 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek off, and your heads hits the v
/archives//html/Amps/2011-04/msg00271.html (9,194 bytes)

332. [Amps] Exhaust air temp VS Anode temp (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 13 Apr 2011 12:18:01 -0700
The imaging systems will show the temp variations in the rising air. OTOH as John says, the question is immaterial because (paraphrased) the tube will be hotter than the air leaving it. oranges. The
/archives//html/Amps/2011-04/msg00377.html (12,240 bytes)

333. [Amps] Bag-o-meter calcs in US units (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 14 Apr 2011 00:11:51 -0700
Now THAT is out of the bag thinking! Brilliant. 73, Jeff AC?C www.ac0c.com get to max speed., nor resistance of the bag opening up. I think the folks in the UK years ago were using those dry cleaner
/archives//html/Amps/2011-04/msg00402.html (9,834 bytes)

334. [Amps] DIN vs N (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 25 Apr 2011 18:45:02 -0700
Those 10-15W are per channel, not per connector. Cell phone sites run multiple transmitters into the same antenna. That is also the reason why IMD by connectors and cables needs to be as low as possi
/archives//html/Amps/2011-04/msg00533.html (12,151 bytes)

335. [Amps] DIN vs N (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 25 Apr 2011 19:47:37 -0700
PL 259s I've personally witness run at 2Kw carrier, 10 Kw pep. N's AND BNC's I've seen about 5-6 kw carrier, 100 percent modulated. LC I've seen go to about 55Kw, modulated. I've seen the DIN go in t
/archives//html/Amps/2011-04/msg00534.html (10,932 bytes)

336. [Amps] DIN vs N (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 25 Apr 2011 21:59:21 -0700
Maybe if you don't try to cover all of 75 or 160, but I've blown out N connectors (Amphenols no less) running no more than the legal limit on 75 a number of times. I use a tuner so I can cover all of
/archives//html/Amps/2011-04/msg00536.html (10,677 bytes)

337. [Amps] Power handling of an SMA (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 27 Apr 2011 04:57:59 -0700
I suspect a lot of issues with 259s arise from the variation in materials. I see lots with nylon and brown 'plastic' (bakelite or SRBP?) insulation which I wouldn't trust under stress or with age. Th
/archives//html/Amps/2011-04/msg00556.html (10,489 bytes)

338. [Amps] DIN vs N (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 27 Apr 2011 05:38:38 -0700
I'm much more concerned as to how they are constructed and of what materials rather than where. That said, If I can get US made of comparable quality (IE good Silver plated Brass) then I go for the U
/archives//html/Amps/2011-04/msg00557.html (12,735 bytes)

339. [Amps] Jennings UCS puller interchangeability ? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 3 May 2011 18:30:20 -0700
The end of the shaft sizes are 1/4" and 3/8" . The cap itself has 1/4-28 threads (1/4" 28 threads per inch). Most of the "nose cones" are the same size. Sometimes the 3/8" shaft end is just an adapte
/archives//html/Amps/2011-05/msg00008.html (8,724 bytes)

340. [Amps] PA efficiency (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 19 May 2011 02:36:43 -0700
It's totally pointless stating the efficiency to 3 significant figures (58.3%). Whilst if you use a DVM you can read DC voltages and currents to well under 1%, you wont be able to measure the RF powe
/archives//html/Amps/2011-05/msg00155.html (11,788 bytes)

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