To: | [email protected] |
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Subject: | Re: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner |
From: | Chris Osborn <[email protected]> |
Date: | Wed, 7 Apr 2010 21:40:39 +0000 (GMT) |
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Many thanks for all the contributions and suggestions. I have been reading them and trying to understand but I am no 'boffin'. Basically I have a 'decent' PC and appear to be receiving WSPR ok. My rig is home built with a DC receiver and a simple CW type TX with VCO facility. I am not at home with PIC's or programming and was hoping someone would come up with an analogue solution. I know I need to do more 'reading up' but was trying the lazy-man's approach. My initial thoughts were that the PC is giving out a 1500 Hz tone + / - 5 Hz. This is used to generate USB signals from an SSB TX (?) I was hoping to mix these tones with a stable frequency of 1400 Hz (say) ending up with 100 Hz + / - 5 Hz - thence to an F-V converter - gain / level adjusted and thence to the TX VCO input. Ready and awaiting the brickbats. 73 Chris G3XIZ From: M0FMT <[email protected]> To: [email protected] Sent: Wed, 7 April, 2010 21:41:02 Subject: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner
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