Okay guys, I am going to make this as short as possible. Here is the situation. The evaporator coils, furnace, blower unit and associated control circuitry of my HVAC unit is located in the attic of my house. Because of the covenants of our subdivision we are not allowed to have exterior antennas. I have Double Bazooka dipole antenna mounted in an inverted V configuration in the attic. I only use the 11 meter band channels 1 thru 40 am and ssb. I am running a Galaxy DX 949 radio with a Palomar TX-150B amp (vintage 80's model transistor amp a real Palomar I have been told) Now finally to the problem I am having. I have noticed that when I am using the radio on channel 38 LSB and the amp(talking skip, using the amp on low power output on ssb of 80 to 120 watts) and the A/C is off that the A/C unit will come on even though the temperature is below what the thermostat is set for. The unit does have a programmable thermostat. I can supply more detailed info about the HVAC if it would help. I don't talk skip much on AM so I don't know if that affects the HVAC unit as well and I always run barefoot when talking locally on AM. One last thing I have moved the dipole antenna as far away from the A/C unit and the programmable thermostat as I can. I would say it is a good 15' to 20' away from the unit at this time. Any help or suggestions to resolve this problem would be greatly appreciated. Thank you in advance.