[Elecraft] KPA1500 Fan Noise

[Drew AF2Z]

There are liquid cooling systems available for CPUs and graphics cards, 
used by gamers and overclockers. Have no idea how this would compare to 
cooling a 1500 watt RF power amplifier but probably more analogous than 
an airplane engine.

73,
Drew
AF2Z


On 06/02/18 17:09, Dauer, Edward wrote:
> 
> I have been following this thread with interest because I have a KPA1500 on order, and I have very limited flexibility as to where the RF deck can go compared to where I will have to sit.
> 
> Don's video was very well done and a great help in understanding the realities.
> 
> I know zero about thermodynamics, and so wanted only to say thanks to everyone who is contributing ideas, and to make but two comments.
> 
> First, as to water cooling, I suspect it would be a huge weight penalty to get the cooling fluid everywhere it needs to be.  So far as I know there is only one reciprocating engine made for aircraft that has a water jacket.  (There might be others nowadays - I haven't owned an airplane for some years.)  The reasons others don't are reliability, safety, complexity, and - mostly - weight.  Second, isn't this largely a contest-operating issue?   I believe we are still governed by the rule that we may use only that amount of power necessary for the communication.    I contest too, so I'll face the problem on those occasions, but not for casual ragchews.  I plan to make some graphs of when in terms of time, power, mode and band the fans on mine kick up a notch, and use it as a general operating guideline if I need to.
> 
> Ted, KN1CBR
> 
>