I remember Graham saying you can lose 1/3 of OPERA Data and still get
copy but he was not sure which 1/3.
I have tried dropping 1/3 of the data bit spread throughout the message
in a random fashion, this looks very cruel and it is, I have had just on
copy and local at that.
Only 2 stations to punish with tests this afternoon this are normal
results :-
14:21 500 G3ZJO de G8HUH Op4 181 km -26 dB in Somerset.
14:21 500 G3ZJO de M0BMU Op4 -15 dB in nr Hatfield
14:21 500 G3ZJO de G3ZJO Op4 0 km +6 dB in Northampton
1/3 random bits dropped throughout entire message:-
13:35 500 8N3CSZ de G3ZJO Op4 -30 dB in Northampton
Two more tests can give surprising results. 1/3 of all data dropped in
the middle of the transmission :-
14:47 500 G3ZJO de M0BMU Op4 76 km -17 dB in nr Hatfield
14:47 500 G3ZJO de G3ZJO Op4 0 km +3 dB in Northampton
1/3 of all data dropped in random blocks :-
14:53 500 G3ZJO de G8HUH Op4 181 km -28 dB in Somerset. test4
14:53 500 G3ZJO de M0BMU Op4 76 km -17 dB in nr Hatfield
14:52 500 G3ZJO de G3ZJO Op4 +0 dB in Northampton
Naturally propagation comes into play here G8HUH does not copy every time.
73 Eddie G3ZJO
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