[AMRadio] GG 813 Linear in GE Ham News


W5OMR/Geoff w5omr at satx.rr.com
Thu Sep 29 12:33:33 EDT 2005


Gary Schafer wrote:

See?  I -knew- I was getting muddled again. (~sigh~)

Gary, let me apologize for not understanding your statements, but I'll 
stand by what I said to be wholly true.

I've been corrected, and it's a true statement.  Read below"

>Gary wrote:
>
>> It does not matter what type of signal is modulating the signal when 
>>> the linear amp is involved. Whether it is a sine wave or speech or 
>>> anything else. The PEP rule still applies for 100% modulation! You can 
>>> not exceed 100% positive peak modulation if the carrier is set at any 
>>> level greater than 1/4 the PEP output capability of the amplifier. 
>>> Unless you want to operate it in a non linear mode.
>>    
>>
>
>Geoff Wrote:
>  
>
>> <>>I Disagree with that.
>
> Gary's statement is true.
>
> He is speaking of the PEP max output capability of the AMP. If the PEP 
> maxoutput of the amp is 1000 watts then regardless of the symmetry of 
> the audio, <>250 watts is the max carrier it should run on output. If 
> asymmetrical then you would need to reduce the carrier to maybe 100 
> watts output. At 250 watts carrier output the amp would reach 
> saturation before 100% modulation in any case.


Sorry, sir.

--
73 = Best Regards,
-Geoff/W5OMR




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