Honestly havent tried a dummy load. RF could be the issue, it messes with the FZM1 tablet when i use this antenna frequently. Unfortunately im trying to operate with the AX1 loading coil antenna that connects directly to the radio. I do have some faraday sheet i may try to cover tthe rig it when i Tx, see if that helps.
Jacob Lindsey ( KN4YAV ) and Kayla Lindsey ( KO4DEG )