JAXAshby wrote:
Hal Roth reportedly used a Radio Shack transistor AM radio and commercial radio
stations to navigate, and Hal Roth is just over 80 now.

Not sure how his present age relates, but certainly people have used
commercial radio stations (done it myself.....all else had failed) but
it is not recommended as a normal practice.

but yes, by the 1960's RDF through commercial AM radio stations was less
accurate that purpose-build, accurately placed AM nav radio stations.

As it was before that time.

I believe Loran-A dates from the late 1940's.

I believe you'll find that LORAN was actually a WWII thingy, initially
employed to guide bombers in the European theater.
As used,(in the Marine environment) it was an excellent tool, although
it had problems in the Gulf of Mexico, until the advent of Loran C. It
used a set of functions which required readings from an oscilloscope
type screen to come up with the TD's.
LOL Sheesh, talk about dating oneself.

otn