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Re: Fw: LF: 475kHz crystal

To: "[email protected]" <[email protected]>
Subject: Re: Fw: LF: 475kHz crystal
From: M0FMT <[email protected]>
Date: Tue, 8 Jan 2013 10:04:51 +0000 (GMT)
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Hi Klaus and group
 
He doesn't seem to have taken MF on board as far as I can see. May one of his rigs can be modified I have not checked my self.
 
He does mention the use of Si570 programable xtal. I have one on a board with set frequencies from a PIC and selected by binary from a dil switch. They will not operate as low as 500kc/s so they have to be divided with either a CD4040 or CD4060 or any other logic divider. However it gives stable selectable xtal frequencies. In this case it is probably worth going the extra mile and make up a DSS as the master oscillator which will give VFO coverage. I think your pays your money and takes you choice as they say....... hee.
 
Cheers Klaus.

73 es GL Pete M0FMT IO91UX
From: Klaus Hirschelmann <[email protected]>
To: [email protected]
Sent: Tuesday, 8 January 2013, 8:53
Subject: Re: Fw: LF: 475kHz crystal

Hello
maybe we can bring http://www.hanssummers.com/ for also offering 630m-Band versions of his QRSS and WSPR kits.
.
Klaus, DJ7OO
 
 


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