AC condenser fan motor replacement creates terrible noise on 20 meters

Discussion in 'On the Road' started by KM4IY, Jul 9, 2017.

ad: L-HROutlet
ad: l-rl
ad: Subscribe
ad: L-rfparts
ad: K3QNTad-1
ad: l-gcopper
  1. KM4IY

    KM4IY Premium Subscriber QRZ Page

    the AC condensor fan motor on my honda element went south last week. i was proud that i was able to diagnose the problem and replace the motor. my elation was short lived when i turned my ft100 onto 20 meters... it sounds like a dentist drill is inside the rig. prior to the swap, i had very little noise anywhere.

    i know where the problem's coming from, and i kinda have an idea that the solution is going to include some ferrite material and maybe capacitors, but how and where?

    other solution is only use 20 meters when i don't have to use AC... i could, but don't want to.

  2. KM4IY

    KM4IY Premium Subscriber QRZ Page

    20 meters seems to be the only band doing this...
  3. KA9JLM

    KA9JLM Ham Member QRZ Page

    A L-C filter on the DC line may be the best bet. Can you hear it on your AM radio ?

    Good Luck.
    AF4RK likes this.
  4. NE2I

    NE2I XML Subscriber QRZ Page

    Extra ground or 2 cant hurt...

Share This Page