Stuart:
What you describe is exactly the first thing that occurred to me. The
same remedy occurred to me. I put 6 (each one only gives you about 3
dB attenuation)) MFJ-701 chokes on the line between the RigRunner and
the K2. It made absolutely no difference.
As I said in a prior post, the West Mountain guy says this phenomenon
of the LED going brighter on key down is a quirk of the logic circuit
that they use to drive the LED.
73,
Steve
AA4AK
At 05:39 PM 11/6/2006, Stuart Rohre wrote:
The LED is simply a diode that glows. It is entirely possible this LED has
enough response at RF frequencies, that it is responding to your RF keying
waveform, as well as glowing with the steady DC of the supply. You might
try a clamp on ferrite choke between the Rig Runner and the rig. You may
have to slide it along the cable to find the point of optimum suppression.
At that point, use cable ties to position the permanent installation of the
clamp on choke.
Stuart
K5KVH
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