Hi,

I purchased a new 9CHF from Servo City earlier this year. I am using this tx on 3 models currently, a Sig Fazer, which I have had since 1998 with the same receiver (antennae out of the left wing), a new GP PT-19 with a known good Futaba receiver (antennae out and below the fuselage), and a new Sig Mayhem 3D with a known good Futaba receiver (antennae out of turtledeck and rubber-banded to fin). The Fazer range checks ok with antennae collapsed to 100 ft., however, both the PT-19 and Mayhem begin jittering @ approximately 60 ft. with antennae collapsed. I have replaced the receiver, battery and servos, as well as relocated them in the Mayhem, to no avail. I have also checked the range with a Hitec receiver, also with severe jittering @ 60 ft. I do not know anyone who has a tx on my channel, so I am at a dead end.

Should I send the tx to Hobby Services for service? I called both Hobby Services and Servo City this afternoon, but they are closed.

Thank you for your help.