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
