[Milsurplus] DFing receiver LOs and truck ignition radiation

[boeing377 at aol.com]

"There was a VHF radio direction finder used in SEA to locate trucks by 
homing in on the ignition noise.

John  WA4WDL"




"Four Lockheed SP-2H Neptune ASW airframes were modified for Trail Interdiction ... and Black-Crow vehicle ignition detectors"

I think they were just vehicle proximity detectors not DFs. 

http://home.att.net/~c.jeppeson/igloo_white.html

73
AF6IM