Ah yes, and like majestic sailing ships on the high seas..
Two or three KW's resounded.
Heterdyne free,
No background hiss..
just a few tiny garbles and whistles faintly in the background.
Somewhere in the middle of about any band, Radio Moscow "IF'd" into the general bedlam.... +/- 455kc into infinity.
-Ture Radio.
And all this with your SX-xx, five tuber of choice....
There were R-390's back then, but only the gubment could afford to own one.