Interesting - looking closely I can see what might be very short
burst at 77Hz at around 0400 UTC and what might be a similar short
burst at 75Hz around 0645 UTC. I can't see anything else except for
the 4 minute burst at 82 Hz around 0530utc. This burst is usually
the precursor to the main transmission 90 minutes or 150 minutes
later - perhaps checking the transmitter. This morning, however,
there has been no 0800 utc transmission.
73 Chris G3WCD
On 25/05/2011 08:00, mal hamilton wrote:
ELF
Around 82 - 83 Hz area there seems to be
other activity as well as zevs. Observed what looks like short
bursts periodically, maybe not related but strange these short
bursts are around this frequency area and not visible
elswhere. I did see a short burst also on 77 Hz
at 0407 utc this morning.
No interest in this activity other than
checking RX sensitivity and Antenna.
Using S/Lab and computer sound card and
150 metre inv L antenna
G3KEV
