• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

Yaesu FT 840 Fan Noise Reduction

AudioShockwav

Extraterrestrial
Staff member
Apr 6, 2005
7,498
5,230
593
Sierras Near Yosemite National Park
This circuit allows the entrance of the fan to 50% of its speed thus slowing the time Yaesu FT-840 triggers the circuit to its thermal entry at top speed. This effect reduces the noise This circuit allows the entrance of the fan to 50% of its speed thus slowing the time Yaesu FT-840 triggers the circuit to its thermal entry at top speed. This effect reduces the noise of the device since its performance at high speed is not to be so ordered.
 

Attachments

  • 4736_Fan_Noise_FT-840.gif
    4736_Fan_Noise_FT-840.gif
    34.8 KB · Views: 284

dxChat
Help Users
  • No one is chatting at the moment.
  • @ BJ radionut:
    LIVE 10:00 AM EDST (y)
  • @ ButtFuzz:
    Of course the 1st day it is nice outside and I go plop the true Rod Of God for 20m on the mobile, All I hear is a couple of yokels talking about bowel movements. What's the 6m calling freq? 50.125?
  • @ ButtFuzz:
    The true Rod of God.
  • @ BJ radionut:
    6m calling freq? 50.125? (y) (y) (y) :cool: