Vibroplex Bug Question - new to this

Discussion in 'Straight Keys - CW Enthusiasts' started by KN4CQB, Mar 22, 2020.

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  1. KN4CQB

    KN4CQB XML Subscriber QRZ Page

    OK - just received a nice Champion bug. I can't seem to figure out how to make it work with my 7300. I think I have it wired orrectly - dit to red, dah to white. When I have it wired like this there is no sound at all from the radio. If I put the shield on either wiring post it does send a signal, but it is dits on both sides of the paddle.

    I have the 7300 set for paddle but no other changes. What am I missing?

    Thanks, KN4CQB
  2. AD5HR

    AD5HR Ham Member QRZ Page

    Set the rig up as a straight key.
    W9RAC and WB5YUZ like this.
  3. WA3LKN

    WA3LKN Ham Member QRZ Page

    Your Champion bug is nothing more than a straight key on steroids.

    Set everything to 'key' and it should work fine.

    Polarity doesn't matter.
    K5VZD likes this.
  4. KN4CQB

    KN4CQB XML Subscriber QRZ Page

    Thanks all - changed to straight key - now I get a tone as long as I hold the paddle - it either direction...
  5. N2EY

    N2EY Premium Subscriber QRZ Page

    You have to adjust it properly.

    Also, the grounded wire to the rig should go to the bug terminal that is not insulated.
    K5VZD and WB5YUZ like this.
  6. N0NC

    N0NC Ham Member QRZ Page

    See Page 12 in your manual. connect the dot and the com. (upper picutre).
    73, Chuck
    N2EY likes this.
  7. AE1N

    AE1N Ham Member QRZ Page

    There are some very good videos on YouTube addressing this.
    Layne AE1N
    N2EY likes this.
  8. KD4ZFS

    KD4ZFS Ham Member QRZ Page

    K5VZD and WB5YUZ like this.
  9. WB5YUZ

    WB5YUZ Ham Member QRZ Page

    OP: please read this before going any further with your bug. Your bug must be properly adjusted or your CW is likely to be very hard to read!

    I know it's a bit of a read. But once you've used a bug that is set up correctly, you will be able to quickly and easily make adjustments by ear.

    And anyway, most bugs will send good CW in a range of speeds, so adjustment is usually only necessary if a large change of speed is undertaken.
    Last edited: Mar 22, 2020
    KA2CZU likes this.
  10. WN1MB

    WN1MB XML Subscriber QRZ Page

    I've have sustained a serious injury by restraining myself from posting what I'd like to on this thread. I suspect I'm not alone...
    W9RAC, W5ESE, WA0YDE and 5 others like this.

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