[MilCom] CG Navtex

[David L. Wilson]

> Coast Guard Navtex messages down on HF 516.40KHZ tonight from Norfolk
> Va.
> Usual Navy warning exercises offshore Virginia Capes and Cherry Point.NC.
> Using Multipsk 4.31.1 tunes best for me on 516.40KHZ versus advertised
> 517.00KHZ centered just above 1500khz Unusual CG navigation message
> Juneau Alaska at tail end. Makes no sense to me but maybe you all can
> understand it.

516.40 kHz is actually technically not HF but MF.  (HF starts at 3 MHz.)   
Not clear how you tuned the signal (I assume as usb) with what receiver.
The "advertised" frequency is 518 kHz and 516.4+1.5=517.9 ... almost the
predicted 518 kHz and possibly your receiver is a little off.

--
David L. Wilson