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[AMPS] RE:Grid driven triodes

To: <amps@contesting.com>
Subject: [AMPS] RE:Grid driven triodes
From: measures@vc.net (Rich Measures)
Date: Thu, 1 Apr 1999 00:33:04 -0800


>
>    
>   Too bad FCC cant stretch their actions to cover Europe.
>   Over here the splatter situation is worse then ever.
>
?  The FCC can not do anything about in-band splatter in the United 
States thanks to their own rules, Jan.  
>------------------------------------------------------------------------
>---------------------
>
>
>At 09:33 AM 3/31/99 -0800, Rich Measures wrote:
>
>>?  Bridge-neutralization and an unbalanced Pi tank could provide  
>>general coverage Class AB1 operation for a (low-Mu) triode - as it does with 
 
>>tetrodes and pentodes.   .  See Figure 5 on my Web site.  The only change  
>>needed for a triode is to decrease the ratio of the bridge  capacitances.  
>>-   A problem with grid-driven  Class AB2 and Class B operation is c.  
>>minus 20db ssb-voice IMD.  Even though this is perfectly FCC-legal as  
>>long as the feculence stays within the amateur service band in use,  
>>anyone who runs high power with high distortion is quite likely to be  
>>viewed as an anathema.   
>
>
>Hi Rich
>
Bob:

>While it may be FCC-legal the FCC is taking interest in nearby  
>distortion
>products. It was reported on the ARRL's web page that among the FCC's
>recent enforcement actions on the high end of 20 was notices of general
>inquiry to several operators for wide signals. It was stated that these
>were not official citations for rules violations but the FCC did express
>it's interest in what it believed was improper operation and wanted
>information regarding the equipment being used.

?  The way the rules are written, paragraph D allows any level of IMD, 
provided that the splatter does not extend beyond the amateur service 
band.  



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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