Stefan
''OP32 is really slow''
Yes but twice as fast as OP64 , for this you can watch a DVD !
and OP4H, can go out for the night hihi
But OP32 has 6 dB more sensitivity , showing down to -40 dB , in say
Mikes case , that's from 800 watts to 3200 ! quite a saving , but as the
system is one-shot , the dcode is representing the Tx period ,
interesting the decodes start at -28 / stop at -23 , the signal must
rise and fall quickly ?
Pity nothing decoded in the US last night , but signal 's in 1500 /2000
mile range where quite substantial ...
from this , it seems that propagation on 136 is really linked to the
seasons ? as Gary , was using a small 35 ft top loaded vertical and
300 or so watts , for the first TA decode by Joe, using the original
OP8 mode
Was /is the second HOP propagation available , if the signal was
round -20dB at 2000 miles range , in winter time would the second
hop loose 20 dB reducing to -40dB ?..surely not as Gary's decode's
where 10 dB over the lower limit of OP8..... is anyone watching the dfc39
signal ?
One point from previous trials , If Spec-lab is used with Opera ,
then SL must be set to 48Khz sample rate , or OP can loose low level
decode sensitivity.
Monitors ,
Yes many Op stations may not normally use the 136 band , but as
you notice , with some warning , then stations will tune in,
and the web/linked beacon , shows activity , so stations can switch
over , during the tx !
73 -G..
And thanks to Chris for monitoring !
--------------------------------------------------
From: "Stefan Schäfer" <[email protected]>
Sent: Wednesday, July 25, 2012 2:11 PM
To: <[email protected]>
Subject: Re: LF: 4X OP32 report
Thanks Chris.
OP32 is really slow, so the entertaining factor is just 1/4. In OP8 it is
nice to do something else on the PC and watch the reports each few
minutes.
Another effect seems to be that one day is needed until a number of
listensing stations appear on the map. Yesterday there was not so much
going on (relative) while there were many stations on the band over the
weekend and on monday. I expect tonite the activity will be higher again.
So i'll give it another try in 32...
73, Stefan
Am 25.07.2012 12:03, schrieb Chris 4X1RF:
Stefan, LF,
OP32 last night report in Haifa:
02:15 136 DK7FC Op32 -23 dB
01:38 136 DK7FC Op32 -23 dB
01:05 136 DK7FC Op32 -26 dB
00:22 136 DK7FC Op32 -24 dB
*********** 25/07/2012 ***********
23:50 136 DK7FC Op32 -24 dB
23:08 136 DK7FC Op32 -26 dB
22:34 136 DK7FC Op32 -28 dB
*********** 24/07/2012 ***********
I've temporarily lost control of my Bucharest grabber so no reports from
that end this time, should be fixed soon.
Thanks for the test,
73s
Chris 4X1RF
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