Thanks Stefan,
Gary sent a copy of his cct , Im wondering what one of the usb
dongles would make of it , pre-amp and band pass filters ...
73-G,
--------------------------------------------------
From: "DK7FC" <[email protected]>
Sent: Saturday, August 15, 2015 9:50 PM
To: <[email protected]>
Subject: Re: LF: Some LF again
Hi G,
No, i've made to many modifications from time to time. There is no up to
date schematic.
But, it is a typical design. A suitable band pass filter, impedance
converter matching to a SBL-3 mixer. The LO is 125 kHz, down-divided by a
CMOS 4060 and a 4 MHz xtal. Then an IF-LPF. That's all. You may need an
additional amp stage, depending on the incoming signal level...
73, Stefan
Am 15.08.2015 21:16, schrieb Graham:
Hi Stefan
Do you have a link to the CCT for the soundcard Rx ?
Tnx-G
http://myweb.tiscali.co.uk/wgtaylor/136SCRX.jpg
--------------------------------------------------
From: "DK7FC" <[email protected]>
Sent: Saturday, August 15, 2015 6:18 PM
To: <[email protected]>
Subject: LF: Some LF again
Hi LF,
I'm back there is WSPR-15 for some time. The power is reduced by 4 dB,
unfortunately.
Maybe someone can catch a trace anyway :-)
73, Stefan/DK7FC
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