• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

Yaesu FT840 transmit issue.


Supporting Member
Jun 24, 2009
The receive in this unit works excellent. when I key the microphone and watch the needle on the meter the needle goes from the middle of the meter to zero. When I unkey the needle goes back to the middle of the meter where it was originally. Any thoughts?

What mode of operation are you in as LSB & USB will show no carrier until you talk into the mic the needle should remain on zero. On am depening on the RF power setting will determine how much the needle moves. Also what frequency are you trying to tx on and is the radio capable of transmitting on that frequency? There may be more but these are some of the simple ones. Check your rf power

Help Users
  • No one is chatting at the moment.
  • @ ShadowDelaware:
    AKA- UDX122
  • @ ShadowDelaware:
    West indies and Australia coming in to South Jersey
  • dxBot:
    c316buckeye has left the room.
  • @ nfsus:
    Arkansas skip has been heavy at nights here lately. Australians all over the place
  • dxBot:
    RFactive has left the room.