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USB to Serial Data Cable

Discussion in 'Off-Topic Members Lounge' started by Sudden, Jun 16, 2013.

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  1. Sudden

    Sudden

    9
    0
    Apr 27, 2011
    I have a USB to Serial data cable which I should be able to use between my amateur radio and computer, so that I can enter frequencies etc into the radio.
    I am having trouble with a no connection problem.
    How can I test the cable without connecting to the radio?
    From the Prolific chip/usb plug there are 3 wires to the radio one TX, one RX and ground.
    Can a loopback test be performed if so how? Do I connect the TX to the RX and stand by with fire fighting equipment?

    All serious help would be appreciated.
    One forum I tried said buy a new cable which proves nothing.
     
  2. davenn

    davenn Moderator

    13,833
    1,950
    Sep 5, 2009
    yes connecting the TX to RX should provide a loopback use the windows terminal prog ( found in accessories) to see if text you type gets echo'ed back

    Dave
     
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