Looks like Laurence is testing again around 185.2976 kHz. Also noticed the VLF enhancement mentioned by Todd. Don't see VTX4 here often but it was in there tonight even well after local sunset. The signal on 22.7 kHz varied bandwidth often and showed up nicely on the KL7UK VLF grabber (http://kl7uk.com/VLFAlaska.html). 73, Garry, K3SIW, EN52ta, Elgin, IL