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MON when MON is off?

K4ELO Member ✭✭
edited February 2020 in SmartSDR for Windows
Does anyone else with a 6000 hear a distorted version of their voice in the headphones when transmitting with the MON off? Just wondering if I am the only one. I know that I "hear things" but this is distracting! 73 Wayne K4ELO


  • George KF2T
    George KF2T Member ✭✭✭
    edited February 2019
    Sounds like a little RF getting into your headsets. Does it go away when you reduce power? Or on speakers? Have you tried a ferrite on the phones lead?
  • K4ELO
    K4ELO Member ✭✭
    edited February 2020
    Thanks George. I have rf chokes at the feedpoint of all antennas and rf beads on all leads into/out of the 6700 except the coax. Happens at all power levels but stronger with more power. Happens using either an antenna or a dummy load. Does not happen with my other rig.
  • Ed baker
    Ed baker Member ✭✭
    edited September 2016
    usually RF
  • jim
    jim Member ✭✭
    edited December 2016
    I have the same problem with my flex 3000
  • Dale KB5VE
    Dale KB5VE Member ✭✭
    edited January 2017
    What kind of antenna are you using and what are you doing for a ground. If you cure the RFI cause you will not need the Tories and chokes.
  • K4ELO
    K4ELO Member ✭✭
    edited December 2019
    One vertical and two delta loops. But the problem is there on the dummy load too. Every piece of gear is grounded with a half inch braid to a common bus bar in the station. That has both a braid and a double number 8 wire going out to an 8' ground rod about 9' from the internal ground bus. Then there are 8 more ground rods around the house until the chain connects to the power line ground. Again, this problem does not occur in my other rig, a Yaesu. If this is RFI then why doesn't it affect the Yaesu?
  • K6NOK- Bill
    K6NOK- Bill Member
    edited January 2015
    Wayne, did you ever resolve this problem???? I have exactly the same thing with my 6300. I do not have RFI issues here in the shack with any other rigs. So I don't believe it's RF feedback. Thanks Bill W6BWS
  • Jon_KF2E
    Jon_KF2E Member ✭✭
    edited July 2018

    If you reduce your power to 1 watt and the problem is still there you will know it's not RF getting where it shouldn't be. I have found all of the Flex radios I owned to me a little more susceptible to RF getting where you don't want it.


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