If it is to the East of your own location the signals return 500 to 1,000 hz below the original transmitted frequency.
"The Dawn of Amateur Radio in the U.K. and Greece A Personal View"
Norman F. Joly
With a transmitter supplied with unrectified A.C. at 400 hz.
"The Dawn of Amateur Radio in the U.K. and Greece A Personal View"
Norman F. Joly
The frequency response is 20 to 16,000 hz.
"The Dawn of Amateur Radio in the U.K. and Greece A Personal View"
Norman F. Joly