[Amps] T networks and harmonics

[Ian White GM3SEK]

carl s. wrote:
> How , and /or where does Our
>  Wonderful FCC , expect the "average" Ham to "buy and or borrow" the 
>the required "expertise and/or equipment to check all this output 
>stuff.????

If most of us can't measure our harmonic output levels, that is a strong 
argument for amateurs to design their transmitters to minimize them.

A Pi-L network will have better harmonic suppression than a straight 
Pi... but multi-wafer progressive shorting bandswitches are hard to 
find. On the other hand, you can get even better harmonic suppression by 
leaving the existing Pi-network amp alone and adding band-switched coax 
stubs, as used for multi-tx contesting.


-- 
73 from Ian GM3SEK