Specifications

procedure in the PW1 manual, but is similar in concept to the method described here.
I have my PW1 set as described in this article and run my exciter at about the 25 watts level which gives me a full 1 KW
out. Keeping an eye on the PW1's ALC meter is an easy way to ensure that I have the exciter's output power set correctly.
I look for roughly a 1/4 scale deflection on voice peaks. On the air reports have been very complimentary.
RE: ALC Adjustment Procedure
by K1DA on February 11, 2005 Mail this to a friend!
What is the radio snob definition of "cheap radio" I have an FT102 I paid 500 bux for new with an rf clipper and an S line
worth who knows what new with no processing at all.
RE: ALC Adjustment Procedure
by K2WH on February 11, 2005 Mail this to a friend!
ALC Adjustment Procedure Reply
by WA1RNE on February 10, 2005 Mail this to a friend!
This adjustment procedure is good, but even if it's followed to the letter, their is a "variable" that is very dificult to account
for;
Individual transmitter ALC attack and decay time charactristics.
To my knowledge, I don't believe any OEM's are implementing a standardized ALC Attack/Decay specification.
Instead, I have read and experienced that the opposite is true - and in some cases, the Attack time difference was as
much as 10:1!
No wonder there is so much inconsistency in ALC use. You get one person telling you it's the best thing to do and they
have experienced great results. You accept this recommendation and try it out on YOUR rig and obtain totally different
results.
If you're really interested in checking the performance characteristics of ALC operation with your particular
exciter/amplifier, I would start with this procedure, then use a scope or station monitor to confirm whether or not you are
obtaining the best performance.
73, Chris
RE: ALC Adjustment Procedure
by K2WH on February 11, 2005 Mail this to a friend!
ALC Adjustment Procedure Reply
by WA1RNE on February 10, 2005 Mail this to a friend!
This adjustment procedure is good, but even if it's followed to the letter, their is a "variable" that is very dificult to account
for;
Individual transmitter ALC attack and decay time charactristics.
To my knowledge, I don't believe any OEM's are implementing a standardized ALC Attack/Decay specification.
Instead, I have read and experienced that the opposite is true - and in some cases, the Attack time difference was as
much as 10:1!
No wonder there is so much inconsistency in ALC use. You get one person telling you it's the best thing to do and they
have experienced great results. You accept this recommendation and try it out on YOUR rig and obtain totally different
results.
If you're really interested in checking the performance characteristics of ALC operation with your particular
exciter/amplifier, I would start with this procedure, then use a scope or station monitor to confirm whether or not you are
obtaining the best performance.
73, Chris
RE: ALC Adjustment Procedure