Hi Bill & Group,
Although not necessarily long distance communication,
here in the US before there was Non-directional
beacons for aviation navigation, there was directional
beacons or four-course radio range. These beacons
used large loops to develop the beam(s), see
http://www.navfltsm.addr.com/ndb-nav-history.htm . I
seem to remember seeing some pix somewhere on the web
but can't seem to find them anymore. A "Google" on
pertinent terminology of the era should turn up
something.
73 de Mike KB6WFC k ..
--- "Ashlock,William"
<[email protected]> wrote:
Anyone know of any old-time loop
applications for long distance
transmission?
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