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LF = 30 - 300 kHz.
MF = 300 - 3000 kHz. / 3 MHz. HF = 3 - 30 MHz. VHF = 30 - 300 MHz. UHF = 300 - 3000 MHz / 3 GHz. and so on. Most everything from 30 MHz. on down will bounce off somewhere in the sky at some point in time, not always perfectly predictable when and where. Jim - This is true for the VHF frequencies used for conventional aircraft com - communications (118-136 MHz). HF frequencies (below around 5 MHz) -bounce Jim Weir (A&P/IA, CFI, & other good alphabet soup) VP Eng RST Pres. Cyberchapter EAA Tech. Counselor http://www.rst-engr.com |
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