Reversed ADF indications

This unit was at one time installed in my plane before I owned it.
When they installed a "new" panel, they elected not to re-install it.

They took out the receiver, head, loop & sense antennas.

They left the tray, wiring from the tray, sense snub fir the sense
antenna at the top, loop antenna connector & wire at the bottom. The
three devices taken out were sent to an avionics shop to be checked
out.

I was under the assumption (stupid me), that all I had to do was slide
the receiver in the tray, reattach the loop antenna, replace the sense
antenna, and plug in the head....

Perhaps the damn thing read 180 out of phase the whole time????



dp

DP

Your needle not swinging on the ground would worry me. That should be
checkd out also. If you have good signal strength (on ground) then
needle should swing.

Big John


On Sat, 08 Nov 2003 13:48:03 GMT, DP wrote:

There "was" and adf in my plane before I bought it, and received the
adf in a box when I bought it. The tray was still installed in the
avionics stack, and I had a kr85 reveiver, KI225 head, and 42 loop
antenna in the box. I put the receiver back in, and had my mechanic
put the loop antenna back on the plane during annual.

I tested out the system last night. It hears AM Radio well...
It idented a beacon fine, but the needle wouldn't swing to it on the
ground.

I decided to fly and check it out. Sure enough, once I was airborne
the needle swung, and that's when I noticed my problem.


Isn't the needle supposed to point "toward" the NDB?
the head was acting more like a VOR head in the from position.
I know an NDB doesn't have radials, so why would my needle be pointing
toward the tail of the plane as I approach the beacon, and then swing
toward the prop as I pass over?


Thanks
dp

If a mechanic can't screw in two
screws..........

Oh, he can screw in the screws alright, but can he get the right wire in
the right hole?

Peter