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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 | 