[Elecraft] Nulling QRM

[Lu Romero]

Lyle speaks the truth!

Also, dont forget that handy little knob labled "RF GAIN"!  

I find that, in combination with the HI setting in the AF
output, the sdjustable AGC attack and decay settings and the
new DSP parameters since the release of V3r25, amazing
things can be dug out from 200hz above and below a 30 over
S9 CQ'er on 40 meters (using the 500hz filter).

It also works well when 1.3-1.5kHz above or below the same
on SSB (using the 1.8kHz filter).

Reducing the RF Gain also reduces the inherent atmospheric
noise, which the DSP is now quite adept at masking.

It always amazes me how many people never touch the RF gain
control on their receivers, leaving them wide open all the
time.  On 40 and below, most all rigs have way too much
sensitivity, which is actually a hinderance in many
instances, in my opinion.

Note the Kenwood "AIP" button that effectively "deafens" a
TS 450/850/950 rig by shutting off the first IF amplifier. 
They should have labeled that button "Contest Receiver
Optimizer".  

-lu-W4LT-
K3 S# 3182