Yeah, that band is for non-directional beacons (NDBs) for aircraft
navigation. My list is old, but I show an "SWU" in Idaho Falls, Idaho on
350 kHz

KR2T

Matthew and Wendy Plante wrote:

I'm new to this, so this may be a simple question. I found a transmitter at
350 kHz at 1:45 Zulu that was transmitting "SW" in Morse. The mode was AM.
Any ideas? Is it a beacon? Thanks in Advance.
Mattew

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