2016-10-21, 08:21
Thanks Andrew,
I have found the schematics. It looks like a problem with one of the multiplexers or signal lines when the filter is selected on the E channel. I will have to trace through with a scope probe.
Hartmut
This morning I made a note of the gain settings whilst running under 'automatic' and then adjusted the gains using manual mode on the channels I have LP filters fitted. I am now running much higher gain on the two channels with LP filters, the noise has come back up a bit, but signal to noise has gone up a lot.
There is quite a lot of activity around North Africa and southern Greece just now and my two H-field antennas with LP filters are much more sensitive and picking up these strokes much better since making the change.
I am going to see how well it runs today and then look at thresholds. After which I will document my findings.
Robin
I have found the schematics. It looks like a problem with one of the multiplexers or signal lines when the filter is selected on the E channel. I will have to trace through with a scope probe.
Hartmut
This morning I made a note of the gain settings whilst running under 'automatic' and then adjusted the gains using manual mode on the channels I have LP filters fitted. I am now running much higher gain on the two channels with LP filters, the noise has come back up a bit, but signal to noise has gone up a lot.
There is quite a lot of activity around North Africa and southern Greece just now and my two H-field antennas with LP filters are much more sensitive and picking up these strokes much better since making the change.
I am going to see how well it runs today and then look at thresholds. After which I will document my findings.
Robin