[CQ-Contest] TS850 fan operation

[N1PGA at aol.com]

I need some help remembering what the cooling fan duty cycle should be on the TS-850..

I've just put my TS850 back into service and I'm noticing that the cooling fan comes on everytime the rig is keyed up in SSB mode, which doesnt seem right to me.

I don't seem to recall that the fan was always on, but that it cycled on/off, as needed.

What is it supposed to be doing?

John
n1pga