Just as a side note, I'd be amazed if you ever got a compass to work
in that plane with the separate + & Gnd wires on opposite sides of
plane. You have made a very large electromagnet around the fuselage.
Tracy
----- Original Message -----
Subject: [FlyRotary] Radio noise
saga
Just came back from the hangar. My hangar neighbor is a
electrical
engineer and was helping me. Tried few things:
Checked
all the pinouts on the RST AP and everything was fine
Powered the AP and
radio with a separate battery independent from the
planes + and- :
No change
Installed the 20A Radio Shack filter Bob Nuckols
recommended: No change
BTW Radio Shack has discontinued all the noise
suppressors that we
can use. I found one left over.
Than I
checked with my handheld and my headset inside the cockpit. No
connections of any kind to the plane. With squelch on high gain, I
can hear all the noises. Than it hit me: there is an antenna
radiating all the noises. Bob Nuckols warned against use of wire
conduits in both side of the plane.
When I moved the batteries to
the nose from the spar a month ago, I
run two #2 wires the whole
length of the fuselage to the firewall.
Being nervous having
positive and neg. in the same conduit, I run one
in each
side.
So, I think I created a very good antenna.
I have a long HD
battery jumper cable ready to test instead of both
cables in place
now, but I got hungry and tired and left it for
tomorrow.
Buly
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