Why don't you go and have a look on Google, I stuck in "SDR For the Masses" and got loads of hits. Very interesting info on how and why things fit together the way they do.
Having read these I was wondering why these folks use the "divide/4" approach when there are now DDS chips available very cheaply, that provide I/Q outputs like the AD9851. I am building the Elektor SDR http://www.elektor.com/magazines/2007/may/software-defined-radio.91527.lynkx which uses the Cypress cy27ee16 and then a divide/4, and as an amateur getting one of those was a complete pain. Wouldn't the AD9851 have been a better choice, and as an amateur I can get samples of those free of charge? Dave G4UGM Illegitimi Non Carborundum ----- Original Message ----- From: Adnan Yusuf To: soft_radio@yahoogroups.com Sent: Saturday, February 09, 2008 6:26 AM Subject: [soft_radio] Oscillator, what kind? Hi, What kind of oscillator is used in the designs like SDR for the Masses project? Do we use a clock oscillator or just any sine wave oscillator? yours truly, adnan yusuf
