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Old 11-30-2006, 10:55 AM
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Default RE: single vs. dual conversion receivers


Thanks for the correction on the M5. I wasn't aware it was DC. I have several and they work very well.

I don't understand why the image on modern SC receivers isn't handled with dsp and an appropriate choice of the intermediate frequency. Maybe doing so is not economical? Manufacturing cost requirements for RC receivers are very restrictive I suppose.
Yes economics has a hand in the choice of the If, but so does the selectivity requirements of the the receiver. Choice of the IF determines the selectivity of the receiver.