[Amps] Rice Box Exciter to Collins 30S-1 & 30L-1

[R.Measures]

=F0  To obtain quality AM from a modern radio and a linear amplifier,=20
first tune the amplifier up at 100% of max pep.  I prefer to do this=20
with a CW keyer sending 50wpm dits or with a tuning pulser.  Next,=20
switch to AM mode and adjust the carrier control for 25% of max pep. =20
Speak into the mic and adjust the mic gain to the point that 100% of=20
max pep is obtained.  Mo' mic gain is not mo' betta.  Also, there=20
should be virtually no change in the linear amp's anode current during=20=

modulation.
--  Additional comments -- To reduce Rx noise, I listen to AM with the=20=

SSB product detector, back off the RF gain, and select the sideband=20
with the least interference.   By doing this, it allows one to operate=20=

comfortably in an AM-VOX situation. =20
cheers, Roger

On Jul 6, 2004, at 3:13 PM, Roger Agnew wrote:

> I would like to get on an AM Net tomorrow with my Icom 756 Pro driving=20=

> my Collins 30S-1 or 30L-1. Does anyone know or could guide me to a=20
> source of information to properly drive these amps with the Icom 756=20=

> Pro.
>
>
> Roger Agnew
> K1KQ - Austin, TX
> 888-536-5500
>
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>
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org