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« on: March 13, 2019, 0332 UTC »
Station 2HF (Two Hotel Foxtrot) sending series of EAM type encrypted messages 0315 03132019 USB. Very strong in Oklahoma. Calls ZMCUGW and ZMCUZO sends message of 36 characters to first and 30 characters to second. Repeats second message. No one answers the broadcasts except a Spanish freebander who comes up on frequency and says "Hello" in English a couple of times.
I have seen speculation that this is MARS. Might be, but big signal for typical MARS station.
At 0334, same message to ZMCUGW being transmitted on 6807 USB by station Y4S. This transmitter is weaker, fading quite a bit.
0340, Station 7RF on 6807 sends traffic to ZMCUZA. YL operator with male operator voice heard occasionally behind her.
0353 on 6988 C4K sends to ZMCUZO. Different YL operator, strong signal.