[time-nuts] GPS down converter question

Charles Steinmetz csteinmetz at yandex.com
Wed Dec 2 23:44:03 EST 2015

Alex wrote:

>actually the 34MHz filter [Meinberg scheme] could be made at home, 
>by using old 10,7MHz FM-IF filters magnetic material, once upon the 
>time I made some 27MHz filters that way, for 70MHz is bit risky, 
>since there is no salvageable out there

Mix 67 toroid cores are what you need.  Then it's easy.

Best regards,


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