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INRAD IF Improvement Installation
Problem: I had a 1000MP and
installed the Inrad IF improvement board. It worked just fine. I
then bought a new MKV. Transferred the Inrad board to the new
rig. With the board installed, the S-meter stopped operating,
i.e., no bars show on the meter. When the board is removed and
the cabling is restored, the S-meter works fine.
K6SBA David
Solution: You might
have the board in backwards. If you hook up to the wrong three
solder pad area (there are two) then the board acts like a big
attenuator. A friend of mine and I hooked it up just this way
and that's what happened. Mike
Thanks to Mike and Hans for responding to my query. I called
Inrad and they solved the problem. The MP only requires
installing the Inrad board and rerouting cables. The MKV is a
different story. With the MKV, the Inrad board requires voltage
from two solder pads on the MKV audio board. Inrad very
graciously faxed me the updated instructions to use the board on
the MKV.
So the moral to the story: If you own a MP and want to use the
Inrad board from it in your new MKV, make sure you have the
updated installation instructions from Inrad. K6SBA
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