REALISTIC DX-160 FREQUENCY COUNTER MOD
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(1)CENTER LEAD OF COAX CABLE TO A 450PF CAP.

(2)OTHER LEAD FROM 450PF CAP TO POSITIVE SIDE OF R-12
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(1) FOR AM YOU MUST ADD OR SUBTRACT 455 FROM
   THE COUNTER FREQUENCY,FOR THE TRUE FREQUENCY.

(2) FOR SSB YOU MUST ADD OR SUBTRACT 451 FROM
   THE COUNTER FREQUENCY,FOR THE TRUE FREQUENCY.
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  UPDATE:
 SSB= COUNTER FREQ +/- 451 RADIO IF +/- 1.5  RADIO OFFSET = TRUE FREQ.
 AM = COUNTER FREQ +/- 455 RADIO IF = TRUE FREQUENCY.