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1. [AMPS] Peak reading vs True peak (score: 1): Author: k7sc@cybertrails.com (Jim Riff); Date: Wed, 23 Jun 1999 07:21:01 -0700; In tuning high power amps, a CW signal will drive the watt meter to a given level while reading the PO on the average watts scale of the meter (Autek WM-1). Then switch the watt meter to "peak", and; /archives//html/Amps/1999-06/msg00591.html (8,282 bytes)
2. [AMPS] Peak reading vs True peak (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 23 Jun 99 09:39:29 -0500; Peak and average power for a CW signal is identical. A lot depends here. First of all how good is your peak reading meter? How fast is it? SSB voice peaks are pretty short. My Daiwa has a peak hold; /archives//html/Amps/1999-06/msg00593.html (9,856 bytes)
3. [AMPS] Peak reading vs True peak (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Wed, 23 Jun 1999 15:36:05 +0100; If you have a single tone on SSB, the peak is equal to the average. If you have two equal, sinusoidal, non-harmonically related tones, then the PEP is four times the rms. The 'average' power indicate; /archives//html/Amps/1999-06/msg00594.html (8,556 bytes)
4. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 23 Jun 1999 07:43:07 -0700; ? If the anode supply were regulated, there would be no PEP difference between a dead carrier and SSB. . ? In my experiences, any advertisement that contains the word "True" should be treated with c; /archives//html/Amps/1999-06/msg00595.html (9,495 bytes)
5. [AMPS] Peak reading vs True peak (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 23 Jun 99 10:00:44 -0500; Hey Rich, Help me understand something here: What difference does it make that the anode supply is unregulated when it comes to peak power readings? The CW signal is going to pull the anode supply d; /archives//html/Amps/1999-06/msg00597.html (9,259 bytes)
6. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 23 Jun 1999 08:23:46 -0700; ? ... only if the anode-supply is regulated. For a garden-variety amplfier with an unregulated anode-supply, an oscilloscope indicates more RF peak volts at the beginning of a dash than it does at t; /archives//html/Amps/1999-06/msg00598.html (10,614 bytes)
7. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 23 Jun 1999 08:23:50 -0700; ? I saw a 115v, wet-dry shop vacuum cleaner with a "4.6 Peak Horsepower!" rating. At 746w/horsepower, even assuming 100% efficiency, that's alot of amperes for a standard 20A ac outlet. My guess is; /archives//html/Amps/1999-06/msg00599.html (9,682 bytes)
8. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 23 Jun 1999 08:49:56 -0700; ? peak power is related to anode supply volts. When the anode begins to draw heavy current, the charged filter C initially delivers a bit more volts for a mS or so.. ? HV sag depends on duty cycle.; /archives//html/Amps/1999-06/msg00600.html (10,035 bytes)
9. [AMPS] Peak reading vs True peak (score: 1): Author: gdaught6@leland.Stanford.EDU (George T. Daughters); Date: Wed, 23 Jun 1999 08:59:18 +0008; It has been written... I suspect (opinion only) that "True peak power" is a term invented by marketing, in the specsmanship game. Like "Our peak power rating is the TRUE peak power. Other manufacture; /archives//html/Amps/1999-06/msg00601.html (8,786 bytes)
10. [AMPS] Peak reading vs True peak (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 23 Jun 99 11:27:27 -0500; Two problems here: 1.) I'll agree that the peak power HANDLING capability of the tube can be related to its anode voltage. But to me the peak of a particular signal is based on the level of the inpu; /archives//html/Amps/1999-06/msg00602.html (13,185 bytes)
11. [AMPS] Peak reading vs True peak (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Wed, 23 Jun 1999 17:49:34 +0100; I wonder how 'True', the rating is, though. It maybe that they take the 1 minute rating as peak, and the 1 hour rating as average. There's a fair bit of difference in the two, and that's taken advant; /archives//html/Amps/1999-06/msg00605.html (9,347 bytes)
12. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 23 Jun 1999 11:48:17 -0700; ? depends on HV sag. ? To do this, all supply potentials to the tube must be regulated. ? no. In the real world, I would bet that given the few hundred volt sag ? With light loads, the filter C esse; /archives//html/Amps/1999-06/msg00606.html (15,017 bytes)
13. [AMPS] Peak reading vs True peak (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 23 Jun 99 14:35:52 -0500; I know. I was intentionally putting words into your mouth. :-) Again, does the gain drop enough to make any difference in output power? Of course perhaps I should have asked how much difference you; /archives//html/Amps/1999-06/msg00607.html (15,314 bytes)
14. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 23 Jun 1999 13:35:02 -0700; ? ? ? WARNING This reply is too long. ? hardly amusing ? The bottom-line is that less anode-supply volts makes less suds. ? Depends on the amplifier. Depends on the microphone gain setting. ? &iquest; /archives//html/Amps/1999-06/msg00608.html (17,028 bytes)
15. [AMPS] Peak reading vs True peak (score: 1): Author: w7iuv@axtek.com (Larry Molitor); Date: Thu, 24 Jun 1999 00:19:29 +0100; The real problem with the peak reading meter is that most of them don't. If it cost less then 300 bux, it doesn't read peak no matter what the ads say. It's real easy to buy crap these days. 73, Larr; /archives//html/Amps/1999-06/msg00613.html (9,603 bytes)
16. [AMPS] Peak reading vs True peak (score: 1): Author: n3hrt@us.hsanet.net (Martin Gary); Date: Wed, 23 Jun 1999 22:37:13 -0400; **Well that's not actually true... any wattmeter that is not op amp driven is not a true peak reading meter. The Yaesu YS-60 is op amp driven and a true peak reading meter and it sells for about 130; /archives//html/Amps/1999-06/msg00619.html (9,374 bytes)
17. [AMPS] Peak reading vs True peak (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Thu, 24 Jun 1999 11:25:21 +0100; Just to throw in my two penn'orth. On a steady carrier, the HV sags more than on speech. The tube gain doesn't generally change appreciably, but the maximum output power sags because the available pl; /archives//html/Amps/1999-06/msg00633.html (9,820 bytes)
18. [AMPS] Peak reading vs True peak (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 24 Jun 1999 10:07:02 -0400; Gain is reduced when HV sags. I've seen as much as 10% The tube also draws less current, because HV is less. So 1 amp peak plate current giving 1500 watts at 3500volts will Not so on the power. Nor; /archives//html/Amps/1999-06/msg00640.html (10,964 bytes)
19. [AMPS] Peak reading vs True peak (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Thu, 24 Jun 1999 15:30:27 +0100; No. The tube draws maximum current when the plate volts are minimum, and the grid the most positive (which may not necessarily be positive with respect to cathode). So it's swing that gets cramped -; /archives//html/Amps/1999-06/msg00641.html (9,492 bytes)
20. [AMPS] Peak reading vs True peak (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 24 Jun 1999 07:31:55 -0700; ? Indeed, indeed. . Happy New Year, Mr. Rauch. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.co; /archives//html/Amps/1999-06/msg00642.html (9,346 bytes)

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