- 1. [Amps] Al80b (score: 1)
- Author: "Paul Manuel" <k4pdm@yahoo.com>
- Date: Mon, 30 Jul 2012 13:21:25 -0400
- A member of another discussion group Is claiming he can use his Ameritron AL80B Into a 12 to 1 swr at 800W output with no problems. I don't believe it. What say you experts? 73 Paul K4PDM Sent from m
- /archives//html/Amps/2012-07/msg00419.html (9,542 bytes)
- 2. Re: [Amps] Al80b (score: 1)
- Author: "Paul Christensen" <w9ac@arrl.net>
- Date: Mon, 30 Jul 2012 13:26:24 -0400
- 12:1 represents an infinte set of Z values. Perhaps he's lucky and that 12:1 SWR is a point on the Smith Chart where the AL's output network can still perform the tune and match function between the
- /archives//html/Amps/2012-07/msg00422.html (10,675 bytes)
- 3. Re: [Amps] Al80b (score: 1)
- Author: Vic K2VCO <k2vco.vic@gmail.com>
- Date: Mon, 30 Jul 2012 10:43:54 -0700
- I believe that he is getting some kind of meter to tell him that he is getting 800 watts output. I doubt that he is. I don't know of any commercially available wattmeter that is accurate when the SWR
- /archives//html/Amps/2012-07/msg00424.html (11,271 bytes)
- 4. Re: [Amps] Al80b (score: 1)
- Author: "Steve Katz" <stevek@jmr.com>
- Date: Mon, 30 Jul 2012 11:06:50 -0700
- Bingo. I'd say the same thing. 12:1 SWR is 42% reflected power and most every "wattmeter" in the world measures a combination of F+R when measuring forward power. So if it reads 800W, actual forward
- /archives//html/Amps/2012-07/msg00425.html (9,582 bytes)
- 5. Re: [Amps] Al80b (score: 1)
- Author: "Paul Christensen" <w9ac@arrl.net>
- Date: Mon, 30 Jul 2012 16:37:14 -0400
- Steve & Vic, Really good points. If he's using a meter with a simple directional coupler (e.g., Monimatch, Bruene, Bird Thruline), then I would expect the indicated forward power reading to increase
- /archives//html/Amps/2012-07/msg00427.html (11,729 bytes)
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