[Boatanchors] New MF Amateur Band Approved at WRC- 472 to 479kHz

[Rob Atkinson]

500 kc was (is?) the emergency radiomarine frequency; KPH ran rigs up
to 40 KW and that frequency was used for ocean going vessels declaring
an emergency.

Lots of information at http://www.radiomarine.org

73

Rob
K5UJ

On Sat, Feb 18, 2012 at 1:15 AM, Richard Knoppow
<1oldlens1 at ix.netcom.com> wrote:
>
>     When 500khz was still being used by ships I was able to
> hear commercial stations at least 500 miles distant in the
> daytime and much further at night, but these frequencies
> were used mostly for fairly short distance communication,
> the HF bands being used when the ships were at sea.