Update!

After reading the Ford Service Bulletin, I checked to see if it could be the
fuel pump. They said to have radio on and then turn key to on position.
The fuel pump runs for about 1 second and then stops. If the noise appears
for 1 second and disappears, the pump is most likely the source of noise. I
did not get any noise until the engine was started. Therefore, it would
appear it is something else such as injectors, alternator, etc.

Dang! So much for any easy discovery and possible fix. Still searching...

Scott
N0EDV

"Scott" wrote in message
...
Anybody have any ideas to lower noise in my FT-857 mounted in my F-150
pickup? S7-S9 noise (engine running, with NB ON) on 17M (Only band I've
tried on HF yet). Antenna is an Outbacker mounted on a mount I welded up
for my receiver hitch and puts the base of the antenna at about roof
level.
Quiet as a mouse when truck is shut off. Go figure...hard to be "mobile"
with the engine off

--
Scott N0EDV
Gotta Fly or Gonna Die
http://corbenflyer.tripod.com
Building RV-4