[BC] Inovonics AM 222 and DEQ2496 h elp to setup

[Cowboy]

On Thursday 22 December 2005 10:54 pm, Jerry Mathis wrote:
>If I'm following you correctly,

 I somehow got lost in the description of the processing, too...

>your problem is that the positive peaks are  
>no longer higher than the negative ones? Or the positive peaks are lower 
>than the negative ones?

>What kind of transmitter do you have: Tube or Solid State? If tubes, if this 
>problem has been developing over time, it sounds like your RF PA tubes are 
>getting weak, and/or you have lost some grid drive to the RF PA tubes.
>
>If your transmitter is Solid State, then I have no idea.

 And I concur.
 What I would do....
 During the experimental period....
 Crank up the audio drive to the transmitter, to 150% or so.
 Level isn't critical, but crank it up a LOT ! ( temporarily, maybe 10 seconds
 or so, 'cause if it's working right, it WILL splatter ! )
 The negative peaks should be clearly clipped at -100, or at
 whatever level your last hard limiter is set at if in the transmitter,
 such as the Harris MW series had with their "enhancer."
 The positive peaks should either go to +150, or flat-top somewhere
 above 125%.
 If they do, it's not a transmitter problem, and if they don't, then it
 is a transmitter problem.

 Next, set the final audio box to "normal."
 Crank the audio input to it up, a LOT ! Again, 150% or more.
 A very relevant question, and happens more often than I care to believe,
 are the negatives actually higher than the positives, or do you see the
 positives stop and the negative keep going ?

-- 
Cowboy

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