Art, Usually the term 'quadrature detector' is used in reference to a certain type of FM demodulator chip. Don't confuse it with the term 'quadrature sampling detector' which is used in reference to a certain type of I-Q mixer used as a front-end for DSP-based radios.
Joe W3JDR ----- Original Message ----- From: "KY1K" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, May 03, 2005 11:33 AM Subject: [soft_radio] Sony quadrature detector receiver > Hi all, > > I know this is OT for the group, but possibly of interest. > > I was wondering if anyone here has used the Sony ICF-SW7600 receiver. It is > selling on ebay for less that $100 and features 150 Khz to 30 Mhz, USB and > LSB reception and claims to use a quadrature detector. > > It has a PLL vfo though, probably to minimize power consumption, DSS chips > use alot of power. > > I was unaware of any consumer class receiver that used quadrature > detection, and happened to run across it accidently in a google search. > > I downloaded the Service Manual, it looks interesting, but not much info is > given on the quadrature detector aspect of the receiver. > > It appears to have the entire quadrature detector in a single chip, which > appears to be an ASIC. The chip has a Sony part number, and you can order > it. But, no other information is given on the chip. > > The chip might be of interest to the group, hopefully this message is not > too far off-topic. > > Art > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
