DK7FC and DF5QG in CW both with 599 here until 00.05.
(DK7FC sometimes with 59~) :-)
QSB max. 6dB.
http://no.nonsense.ee/qthmap/?qth=JN68KJ79WJ
73
Clemens
DL4RAJ
>-----Original Message-----
>From: [email protected]
>[mailto:[email protected]] On Behalf Of wolf_dl4yhf
>Sent: Friday, December 27, 2013 12:17 PM
>To: [email protected]
>Subject: Re: LF: Sending Opera with SpecLab
>
>Greetings all,
>(and apologies to Markus for juming in so quickly..)
>
>The principle described by Markus is only for transmission.
>To take place of the DS option, i.e. for RECEPTION, spectrum
>lab would have to modified to some extend, last not least it
>would need an 'automated' method to build the correlation
>patterns for the DS mode itself.
>Since Markus has already provided his opera generator (thanks
>for that!), it could be modified into a command-line driven
>tool (exe or dll) which SL could invoke to create the 239-bit
>message pattern for the correlators. I cannot promise too much
>yet (being busy from too many other projects) but maybe when
>the new 'super-linear', moderate-power, switching mode
>amplifier is finished I'll have a look at it again.
>
>All the best,
> Wolf DL4YHF .
>
>Am 27.12.2013 02:00, schrieb Bob Raide:
>
>
> Markus;
> Can this take the place of DS option used with OPERA?
>
>
>________________________________
>
> From: [email protected]
> To: [email protected];
>[email protected]
> Date: Fri, 27 Dec 2013 01:45:14 +0100
> Subject: LF: Sending Opera with SpecLab
>
>
> Today I finally found a simple solution to send Opera
>sequences from SpecLab's digimode terminal. The nice thing
>about this is that you can use all of SpecLab's powerful
>functions, like samplerate correction, adjustable pulse
>shaping, or high audio frequencies. This seems very useful,
>especially in the context of possible future VLF Opera transmissions.
>
> First you will need to create a text file consisting of
>the 239 bit 1101... sequence for your callsign. This can be
>generated from the PIC menu in the original Opera software. Or
>you can use my little code generator tool at
>http://df6nm.bplaced.net/opera/opera_generator.zip - simply
>copy opgen.exe from the zip and type
> opgen mycallsign >opera.txt
> into a command window.
>
> In SpecLab, open the digimode terminal and configure it
>for ASK with no encoding, as shown in the attached "_settings"
>screenshot. The symbol rate has to be set to the inverse
>dotlength for the desired Opera speed:
>
> mode dotlength rate
> (seconds) (sym/s)
>
> Op-8 1.024s 0.9766
> Op-32 8.192s 0.12207
>
> Op-4H 65.536s 0.01526
>
> Shaping time can be selected from hard (0%) to soft
>(50%) keying. Then enter your desired audio frequency and use
>"Load TX text" from the file menue to load your opera.txt
>file. The sequence will appear in the TX window, and the
>transmission can started by hitting the RX / TX button.
>
> Best 73,
> Markus (DF6NM)
>
>
>
>
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