Phil Clements wrote:
>
> ATT-2 is switched in @ 20 meters and up. ATT-1 is hard wired in all the time.
> Don't
> forget to count that one also.
Mine has the 2 db attenuator (AT1) in all of the time and the 3 db one (AT2) is
switched in on 160, 80, and 40 meters.
>Your figures were very interesting, Vic. Did you
> log the
> collector current also?
Not on this test, though I did on the previous test on all bands with 100
watts. I can do it, though.
> Thanks for the dope on the ATT-2 filter. I had no idea what its value
> was.
> I have no idea what the value of ATT-1 is either, nor its wattage rating.
I don't know about the wattage, but the attenuation is as given above. I just
unscrewed the relay mounting plate and looked at the attenuators. I don't think
this is an attenuation issue because of the way the gain drops off as the power
increases. If there were too much attenuation, I would expect the gain to be
the same at 10 and 100w output.
73,
Vic, K2VCO
Fresno CA
--
FAQ on WWW: http://www.contesting.com/ampsfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|