|[AMRadio] AM Linear Operation|
kenw2dtc at comcast.net
Fri Mar 17 23:40:23 EST 2006
I have two Ameritron AL-1200's and one AL-1500. I like the AL-1200's better
as they provide a good match for the 22-25 watt level driver. With 22 watts
of carrier, the AL-1200 will put out 375 watts of carrier with 1500 watts
PEP with a real nice scope pattern.
The Al-1500 needs only about 10 watts of carrier to do the same job, but if
during the course of a long transmission, should you overmodulate on some
rare voice peak, the 1500 will kick off its overload circuit. Some may say
this is a good thing. Since my amps are in the garage attached to the
shack, I don't find it convienent to run out and reset the beast.
The DX-60 will have too much drive for these amplifiers. I remember putting
a dummy load on a T connector with one of my driver transmitters, but I
don't remember how much lower the power was with this setup.
Hope to hear you on AM in the future Mike.
> Because I enjoy operating, and would like to do so with enough signal to
> heard reasonably well on 80 and 40 meters, I too have been considering
> linear to run on AM.
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