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W6PJJ

Joined: Sat, Sep 22nd 2012, 18:55 Roles: N/A Moderates: N/A

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FLDIGI PRODUCES RX IMAGES Dec 23rd 2014, 21:39 1 1,698 on 23/12/14

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FLDIGI PRODUCES RX IMAGES W6PJJ on 23/12/14

I have noticed that my version of FlDIDI for Mac (3.22.02) is capable of producing echo images of a strong station. It appears that when a signal of sufficient magnitude arrives in the Passband of the Decoder, multiple images of this signal appear upward in the passband of the Waterfall display.

I reduced the RF gain on the receiver and even applied a 3 db pad, the echo images continued to appear. You can move the tracks to the 2nd or 3rd signal and copy the same information as the fundamental frequency. I expect that this is occurring in the Computer Decode section but without further tests I cannot reach a final decision.

Anyone else experiencing this problem?

73's

Don
W6PJJ

w6pjj@arrl.net

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