humming when Keyed up

[WRYF300]

I have a low humming sound when i key up. It seems to lower or increase with the internal fan speed. I have checked connections, mic volume, and for any power source near the coax but all is ok. Any ideas??

radio - KG-1000g newish

SWR 1.4

[OffRoaderX]

The fan maybe?

[WRYZ926]

It could be the internal fan or it could be a number of things that are causing interference. First check for any wall wart power supplies, they are notorious for being noisy. Also check other power cables and even computer cables. Keep all of them from touching your coax cable if possible.

[WRWE456]

Is this a new noise or has the radio always done this? I use the 1000G as a base and the fan comes on whenever I key up and the speed varies. Is it just the fan noise that you are worried about or does the sound seem to come through the speaker? Probably just the sound of the motor.

[WRYZ926]

The fan is noisy on the KG1000G.

[WRYF300]

Thank you for the reply's, shout out to off roader X  btw.  So this is a new noise. I know the fan is very loud on this radio but even covering the mic it still happens so definitely not being picked up by the mic. I can hear it listening through Midwest hub and confirmed by others hearing the hum in the back ground. The sound is also consistent with the power outage high or low. Rechecked all connections and power cords around it. Also started shutting electronics off around the radio and unplugging to try to isolate the issue no change.  

[WRWE456]

What are you using for a power supply? Is everything grounded properly? Maybe try powering it with a 12v battery as a test.