[Elecraft] Question K3 ALC w/SPE Expert 1.3K-FA amp

Jim Brown jim at audiosystemsgroup.com
Fri Apr 3 23:20:22 EDT 2015


"Joe just being Joe?  I sure hope so -- he's a professional engineering 
voice of sanity on a bunch of ham reflectors. Joe is a retired broadcast 
engineer. He is absolutely right -- everything he has said is VERY solid 
engineering. It's the way GOOD rigs are designed. It's the way Elecraft 
rigs are designed.

Yes, it's ham radio, and FCC Rules require that our rigs use the minimum 
bandwidth required for mode being transmitted. A dirty transmitter 
occupies a lot more spectrum than a clean one.  That dirty transmitter 
is using bandwidth that other hams may want to use. In contests, and DX 
pileups, signals are wall to wall. A CW signal SHOULD occupy only about 
600 Hz to be 50 dB down, but MANY rigs occupy 4-5 times that.

Ah, you say, 50 dB down is a lot. I respond, not if the signal is 40 
over S9 -- 50 dB down is still S7!

When we use more bandwidth than the minimum required, we as OPERATORS 
are in violation of FCC Rules. The only reason we get away with it is 
that the FCC has zero budget for enforcement.

73, Jim K9YC

On Fri,4/3/2015 4:56 PM, Milverton M. Swire via Elecraft wrote:
> WHY is everyone getting their panties in a wad?!!!!!!
> Joe was just being Joe.
> His reply had nothing to do with the OP original question.
>
> BTW. ....... The rule states " not to be Sold Commercially "
>
> IF! If the Amp was not bought from a local (USA) Commercial vendor, no harm was done.
> He could have obtain it from another Lic Operator. There is no Rule stating he cannot have an SPE Expert 1.3K - FA Amp in his possession.
> LIGHTEN up, this is a Hobby.



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