Remarkable results using OP8 on on 136 from Stefan,
Mike and Tom both reaching TF3HZ 1858 Km and RN3AGC /
RX3QFM , though not at the same s/n level !, but both decoding
inside the OP8 limits
While the condx, appeared not to support TA propagation ,
this would be a good opportunity to to test the OP32 mode
Could we ask, those using Opera OP8 on 136 to change
to OP32 for any overnight or other beacon activity for
comparison ?
OP32 offer's a 6 dB lower decode s/n , but with X4
longer tx 'times' may provide range extension greater than
predicted by s/n , the system working by average power along
the time line , being able to take advantage of qsb and flash
events ..
Thanks All
Graham
G0NBD
INFO :-
Follow the progress of Op8 tests and other 136 activity on Mikes
Blog,
http://g3xdv.blogspot.co.uk/
400 mW ERP >> 136kHz Op8 to Iceland and Russia
Transmitted an Opera8 beacon again overnight on the 136kHz band and got
reports
from RN3AGC, RX3QFM and TF3HZ (-32dB). The Icelandic station produced
five
decodes between 0022 and 0202. Best distance was 2681km to RX3QFM.
Highlights
were as follows:
02:02 136 G3XDV de TF3HZ Op8 1858 km -35 dB in Reykjavik
01:37 136 G3XDV de TF3HZ Op8 1858 km -31 dB in Reykjavik
01:12 136 G3XDV de TF3HZ Op8 1858 km -32 dB in Reykjavik
00:47 136 G3XDV de TF3HZ Op8 1858 km -32 dB in Reykjavik
00:47 136 G3XDV de RX3QFM Op8 2681 km -33 dB in KO91OO
00:22 136 G3XDV de TF3HZ Op8 1858 km -32 dB in Reykjavik
00:22 136 G3XDV de RN3AGC Op8 2483 km -34 dB in Moscow
23:57 136 G3XDV de RN3AGC Op8 2483 km -31 dB in Moscow
