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by RF_Savage 1222 days ago
Interesting that they are using such a high frequency, I hope it serves them well. Should be reasonably free of long range interference.

But surprised that there are no 3.5MHz/7MHz/14MHz band frequencies in use for regional communications. Or they have not been declared yet for emcom use like with Nepal and Puerto Rico.

1 comments

They will use separate bands for regional "nets", the net controllers will forward any necessary information to whoever is the regional emcom person, and that person will get the message out over the 28.540 (or whatever winlink frequencies.)

28.540 has the benefit that you can push it rather far on a modest antenna -at any hour - much like CB, and with digital modes you don't need to be able to "hear" it to copy and send copyable text. Most regional nets will be on VHF, UHF, or NVIS HF (the 3.5, 7, etc) depending on the conditions and time of day.