[Elecraft] Tuners and spurious responses

[Victor Rosenthal 4X6GP]

I just replaced my single-ended T-network tuner plus balun with a 
massive old Johnson Matchbox. It is very selective, unlike the T 
network. It is as if there is a sharp bandpass filter between the 
antenna and the rig.

This may be totally imaginary, and there's no easy way to A/B test it, 
but it seems as though the K3 sounds "cleaner" in some sense.
Could it be that since the mixer sees a much narrower spectrum, there 
are fewer spurious responses?

Do those of you who use bandpass filters for SO2R or multi-transmitter 
contesting notice such an effect?

It also seems that the better balance (my antenna system is a dipole fed 
with balanced line) has reduced RF in the shack and possibly local noise 
pickup.

-- 
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/