[Amps] FCC Denies Expert Linears' Request for Waiver of 15 dBRule

Jim Brown jim at audiosystemsgroup.com
Wed Dec 28 19:58:13 EST 2016


On Wed,12/28/2016 4:44 PM, Joe Subich, W4TV wrote:
> Of course, SPE *could* design in additional negative feedback to use
> up some of that extra gain *and* reduce the IMD created in their
> dirty boxes.  The SPE 1.3K-FA has 3rd order IMD of only -27 dB at
> *800W* per SPE's own test data filed with the FCC for type approval. 

Yes. I recently tested an SPE 1K-FA for CW bandwidth, and found it 
significantly dirtier than my KPA500 and Ten Tec Titan 425.

73, Jim K9YC




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