Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Two\-tone\s+audio\s+generator\s+for\s+testing\s+IMD\?\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Two\-tone\s+audio\s+generator\s+for\s+testing\s+IMD\?\s*$/: 11 ]

Total 11 documents matching your query.

1. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: jflanders2@home.com (Jerry Flanders); Date: Sun, 16 Dec 2001 17:09:24 -0500; Is software available for the PC sound card to generate two audio tones for doing some IMD tests on this 5CX3000A amp that is slowly taking shape here? Since the driving rig is already interfaced to; /archives//html/Amps/2001-12/msg00263.html (8,083 bytes)
2. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 17 Dec 2001 05:39:57 -0500; A two tone IMD test on an RF amp does _not_ use audio frequency! For your test use two RF generators. One set for 30.000.00MHz the other set to 30.001.00 MHz. Look at the output with an Spectrum anal; /archives//html/Amps/2001-12/msg00265.html (9,352 bytes)
3. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: jflanders2@home.com (Jerry Flanders); Date: Sun, 16 Dec 2001 19:05:40 -0500; When my rig gets a chance to convert those audio freqs to 14 MHz, they _become_ RF. My detected audio from the other rig (receiver) feeds an audio analyzer. I check baseline IMD from rig alone, then; /archives//html/Amps/2001-12/msg00267.html (9,753 bytes)
4. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 17 Dec 2001 07:11:22 -0500; This is not the _standard_ way for a IMD test ... Alex == If we can accept the notion that GUNS are the killers and not the people, why is it that we can not accept the idea that CARS are the speeder; /archives//html/Amps/2001-12/msg00268.html (10,668 bytes)
5. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sun, 16 Dec 2001 19:33:03 -0500; You can not, unless you have an exceptional exciter, dump two audio tones in the audio and measure the amplifier. If your exciter is 60 or more dB down for all IMD and spurious on two-tone tests, the; /archives//html/Amps/2001-12/msg00269.html (8,581 bytes)
6. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: jflanders2@home.com (Jerry Flanders); Date: Sun, 16 Dec 2001 20:00:02 -0500; If I can measure the baseline (the exciter) first, the additional IMD generated in the amp shows up as an increase from that baseline. Subtract the baseline and I have a number that represents the am; /archives//html/Amps/2001-12/msg00272.html (9,736 bytes)
7. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: 2@vc.net (2); Date: Sun, 16 Dec 2001 18:05:18 -0800; ... // And you will not know how the amplifier performs wirh voice modulation. I have heard amplifiers that were 10 - 12 db cleaner on a 2-tone test than they were with human voice modulation. - R.; /archives//html/Amps/2001-12/msg00273.html (7,375 bytes)
8. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: alex@sandlabs.com (alex); Date: Mon, 17 Dec 2001 12:14:24 -0500; For this test ( distortions), you have a Distortions Analyzer. But I guess you know this already :) RF IMD - which you said you want to measure - is the result of mixing two or more RF carriers in no; /archives//html/Amps/2001-12/msg00276.html (8,862 bytes)
9. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 17 Dec 2001 08:32:47 -0500; Distortion is phase coherent. Because of phase and level differences through a system where each stage adds distortion, distortion can add, subtract or do anything in between. Measuring white noise; /archives//html/Amps/2001-12/msg00283.html (10,860 bytes)
10. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: 2@vc.net (2); Date: Mon, 17 Dec 2001 07:40:08 -0800; // Which manufacturer invented the exciter cleaner upper? Was a patent granted? tnx, Mr. Rauch - R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.c; /archives//html/Amps/2001-12/msg00291.html (8,054 bytes)
11. [AMPS] Two-tone audio generator for testing IMD? (score: 1): Author: jstrohm@texas.net (Jim Strohm); Date: Mon, 17 Dec 2001 10:17:56 -0600; AG6K asks -- I don't think pre-distortion is a patentable technique. At microwave frequencies, pre-distortion is used by practically everybody in the business to improve amplifier efficiency AND line; /archives//html/Amps/2001-12/msg00294.html (8,094 bytes)

Current List: 1 - 11
Page: [1]