hecilopter
Well Known Member
I have the Van's manifold pressure gauge in my panel. Installed per instructions, grounded the sheild wire at the guage and left the other end open per installation instructions. I have an Apollo sl-40 radio mounted about an inch under the gauge.
When I press the transmit button for the radio, the manifold pressure guage maxes out. The weird thing is, sometimes it does, sometimes it doesn't. Sometimes if I transmit on a different frequency it doesn't move at all. Then if I switch frequencies, it maxes out again.
I have moved wires, grounded the shield at both ends, 1 end or the other and not at all. I can't seem to figure this out.
I have a friend that has an -8 that does the exact same thing. Any ideas?
My manifold pressure guage is just above the Apollo sl-40 as seen below.
Thanks!
Rusty
When I press the transmit button for the radio, the manifold pressure guage maxes out. The weird thing is, sometimes it does, sometimes it doesn't. Sometimes if I transmit on a different frequency it doesn't move at all. Then if I switch frequencies, it maxes out again.
I have moved wires, grounded the shield at both ends, 1 end or the other and not at all. I can't seem to figure this out.
I have a friend that has an -8 that does the exact same thing. Any ideas?
My manifold pressure guage is just above the Apollo sl-40 as seen below.
Thanks!
Rusty
![dsc001426jd.jpg](/community/proxy.php?image=http%3A%2F%2Fimg62.echo.cx%2Fimg62%2F18%2Fdsc001426jd.jpg&hash=a2b4d525c09ca082d6e596216c0fe48d)