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Re: Hairpin mixers with sub-LO Drive
David Jones <david.g6feo@...>
Andy,toggle quoted messageShow quoted text
The DMC ASK 'brick' 23GHz radios used this type of circuit for their 2nd
IF on the receive side.
Assume a transmit frequency of 23GHz, then the receive could be 23GHz +
or - 1232MHz, then to get from 1232MHz to 72MHz a hairpin mixer was
used, with a cheap pc style 580MHz can oscillator which was doubled to
1160MHz in the mixer.
Do you want one to play with? I can put one in the post to you.
I used one of these boards to make a crude 23cms receiver, it worked
On Thu, 2013-01-10 at 19:03 +0000, Andy Talbot wrote:
Double balanced mixers have a quite respectable performance if used