I've been listening at the low end of the bands. I'm hearing narrowband FSK on 21.1 kHz this morning at about 1400Z. The transmitter is coming on for a while then off again. Sounds like they are transmitting short FSK message traffic. 1454Z the transmission came on again sending FSK CW. Seemed like random characters for about 30 seconds, then switched off again. 73, Sky, Tucson, Az