dukeshifi at comcast.net
Sat Dec 30 14:19:01 EST 2017
Perhaps I was a bit too optimistic about THAT aspect of the C21 design. Your question prompted me to rethink that.
While the 5.0 to 5.5 MHz IF in the C21 does offer the three advantages of added selectivity of a 500 KHz wide IF, hum reduction and freedom from the presence of an on-frequency local oscillator, the method of using the PTO as a BFO does still allow the ambiguous sideband tuning issue.
Sorry for the error. I do make them from time to time, especially late at night.
> On Dec 30, 2017, at 12:56 PM, w0ep <w0ep at w0ep.us> wrote:
> I must be misunderstanding..
> My C21 hears both sidebands all the time.
> On 12/29/2017 10:47 PM, Dukes HiFi wrote:
>> Its advantage over direct conversion is freedom from hum and images (wrong sideband).
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