I have been astounded at the quality of SSB transmissions that are revealed by today's SDR receivers which show both a waterfall and a band spectrum. These are as seen on Hack Green SDR WEB receiver.
When I focused in on different transmissions I find
1. GOOD MODULATION
Beautiful, clear, full audio bandwidth, excellent audio processing.
2. VERY BAD SPLATTER, PROBABLY DUE TO OVER MODULATION
Very poor and over modulated transmissions two on both sides and one on one side only. These transmissions often received reports of "good audio" which just shows that the quality of SSB transmission cannot be judged by just listening.
And it can't get worse than this
Just as he said "thanks for the report on good audio". Report "no audio artifacts", needs to use an SDR.
3. BOGGLED TRANSMISSIONS
NEW CODES NEEDED
The regular reports of 5 and 9 are not good enough. We need a better reporting system - a bit like SSTV which reports 5 & 9 plus video quality.
1 comment:
I couldnt agree more- 80m LSB on a typical day has plenty of poor SSB transmissions, wide and distorted.
And its so easy to have great audio if you take a bit of care in setting things up. And use Hack Green or similar to listen to yourself.
73 Bob G3PJT
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