[Elecraft] K2 3662 lives and some questions

[A. Hansen]

Hi Tom,

Here is some advice, for what it's worth:

> My wife's bedside table lamp is attached to one of those capacitance touch switches and when I key the transmitter at 10 watts,
the lamp
> goes on or off. The switching gadget is in line with the lamp and has a polarized but not third-prong ground plug. The lamp is
directly below > on end of my roof mounted 40 meter dipole. Any suggestions?

This type of lamp is a problem. One solution is to place a large value resistor or inductor or both in series with the
shell of the lamp that is used as the touch point and the circuit it connects to. I have used resistors in the range of 100k to
1 meg and chokes in the range of 10-100 uH to stop the unwanted switching.

> Second, the sound is very different when I switch from CW normal to CW reverse. CW normal has a muted sort of sound and CW
> reverse has a much higher "hiss" component. Is this normal?

Did you do a CAL FIL setup after doing the CAL PLL? Even if the values look like they don't need
to be changed, you need to adjust them a bit to force the BFO frequencies to be calculated and saved
properly.

Good luck,
Gus Hansen / KB0YH

Email: KB0YH@arrl.net