"Noel" wrote in message
...
On Thu, 08 Jul 2004 11:25:32 GMT, "Frank Dresser"
wrote:
With a single IF, what you say is true. But with a dual conversion
surely part of the design is that the image is almost inevitably out
of the coverage range of the receiver?
Many dual conversion radios used a first IF between something like 1.6 to 10
Mc. They could still get images from other SW frequencies.
The later ones, with the IFs above 30 Mhz would only get images at VHF
frequenies, which are very simple to supress.
Frank Dresser
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