The only known BACK-UP of the GPS when it malfunctions is your ability to use a military protractor and military compass. The RM Military Protractor is the only protractor with a printed formula and a diagram to align map grid north to match the compass magnetic north. Protractors without the conversion formula will provide a reading that is off the exact grid coordinate position. The GPS will not penetrate sandstorms rainstorms snowstorms smoke structures forest canopies and thick cloud cover.
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The only known BACK-UP of the GPS when it malfunctions is your ability to use a military protractor and military compass. The RM Military Protractor is the only protractor with a printed formula and a diagram to align map grid north to match the compass magnetic north. Protractors without the conversion formula will provide a reading that is off the exact grid coordinate position. The GPS will not penetrate sandstorms rainstorms snowstorms smoke structures forest canopies and thick cloud cover.
RM Products Military Round Protractor
RM Products makes the most widely trusted protractor on the market. Their devices aid map work, land navigation, and plotting indirect fire support.
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