Steve, thanks much for the the good info that you have just given to me.  In 
the past I have always used the radio drive power but I have wondered about 
the ALC and how to adjust it.  I have an old Alpha 78 that I run in the no 
tune position so all I have to do is make sure my standing wave is OK and 
set my radio drive power.  I usually run barefooted anymore but sometimes I 
use the amplifier.  Seventythree,
----- Original Message ----- 
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, April 12, 2008 8:48 AM
Subject: Re: [BLIND-HAMS] Using automatic load control


> Fred,
>
> I'm new to the amp game.  As Steve and John both said, ALC will prevent 
> overdriving but  may not be needed if the input is set properly.  My amp's 
> manual bears this out as it says that ALC may not be needed if drive 
> power and mic gain are set properly  at the transceiver.
>
> You asked how ALC adjustments are made.  Again, according to  the THP 
> manual:  With the proper ALC connections made between rig and amp, and the 
> rig set properly, transmit full output power from the amp into a dummy 
> load. Slowly turn the ALC adjustment knob on the amp until output power 
> just starts to drop off.  Stop at that point or continue turning the knob 
> to further limit output power.
>
> 73, Steve KW3A
>
>
>
> ----- Original Message ----- 
> From: "Fred Adams" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, April 11, 2008 5:04 PM
> Subject: Using automatic load control
>
>
>>  Do any of you guys that run amplifiers use the ALC and if so how do you
>> make ALC adjustments? I have never used the ALC as I didn't know how to 
>> make
>> the adjustments. I would appreciate any info. on this.
>>
>> Best wishes,
>>
>>
>> FRED ADAMS W4HC
>> FIGHT TRUTH DECAY
>>
>>
>>
>