The Desert One monitoring site. Site is located three miles north of Quartzsite, AZ. It is sandwiched between two parallel ranges of mountains which run north and south. These ranges are approximately 11 miles apart, with the receiving location located in the middle. Range heights are roughly 1000 feet higher than the desert floor.
A 150 ft. longwire extends to the northwest on the ground. The Eton E1 is generally fed through the RF Systems magnetic balun, shown just to the rear of the E1 in the photo. Grounding the balun to the truck frame results in a 1-2.5 S-unit increase in signal strength on stations at extreme distance. Negligible strength improvement was found on closer stations within 100 miles or so. Curious indeed.