[time-nuts] OT- RMC sentence and magnetic variation/compensation in GPS module

[Mike S]

At 12:47 PM 2/5/2011, Chris Albertson wrote...
>But "magnetic variation" can be can be gotten from a map... 
>Compensation would always need to be entered by hand.

Compensation? Please don't tell me they've changed things, and a great 
mnemonic is no more. I learned it as 
True-Variation-Magnetic-Deviation-Compass - TVMDC - "Two Virgins Make 
Dull Company."