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| To: | [email protected] |
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| Subject: | LF: opera 137 beacon going |
| From: | Andy Talbot <[email protected]> |
| Date: | Tue, 10 Jan 2012 16:06:57 +0000 |
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Having had to modify a 137kHz source to be able to generate on-off keying, I'm transmitting a signal using 2.048s symbol mode on 137420Hz 33% duty cycle (for now) This is based around my PIC generator for the mode Details at http://www.g4jnt.com/PIC_Opera_Source.pdf and http://www.g4jnt.com/OperaBeacon.zip As its an independent source, with no PC in the Tx chain - no IP packets will be sent to t'web showing the details and its definitely gettign out.... 15:46 136 G8IMR de F6CNI Op8 391 km -28 dB in 136 kHz dial nr Paris Andy G4JNT |
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