[Kenwood] Noisy fan?

[Peter Ravn]

Hi Mike

1) Installation of the NF-R8 is easy, and no alterations are needed in the 
Kenwood equipment I have. The most difficult fan to replace is the one under 
the internal loudspeaker in the TS950SDX, which has no less than three fans. 
This operation was done by a professional technician during a recent check 
at a repair shop.
2) My TS850SAT, which has a low serial number, runs almost noislessly during 
transmission and certainly much quieter than with the original fan. What you 
hear is a very gentle and clean breeze with no mechanical resonans. The fan 
is only activated during transmission, so this is another reason why you 
tend to forget there is a fan in the TS850SAT.
3) For some reason or other the NF-R8 in the PS-53 sounds a bit louder 
(possibly due to higher speed), but still it is much quiter than the 
original one. Normally you won't notice it when it starts working. If you 
use earphones, you will hear nothing.
4) Loudest of the threel is the TS950SDX, which is no wonder considering the 
fact that it has three fans installed, and the heating is considerable in 
this radio. Still it is quiter and thus more pleasant to operate than when I 
bought it last month.

73 de Peter / OZ8CTH


----- Original Message ----- 
From: "Mike" <wz5q at juno.com>
To: <Kenwood at mailman.qth.net>
Sent: Monday, April 27, 2009 1:56 AM
Subject: Re: [Kenwood] Noisy fan?


> Howdy Peter,
> Thank you for that!
> I have tried just about every other fan there is trying to find a
> suitable replacement for the old Panaflo design.
> Most often, even if the specs said the replacement fan was quieter, that
> was not so.
> I have not found a quieter fan then the Panaflo to date, thus I have
> accumulated allot of spares.
> Could you please give us a first hand, detailed report on how you like
> the NF-R8 in comparison to the Panaflo in your various equipment?
> Real Experience is most always better then reading Specifications!
> Thanks,
>
> Mike
> WZ5Q
> from Deep Down in the Dark Dismall Swamps of the Calcasieu
> http://www.wz5q.net
>
>
>
> Peter Ravn wrote:
>> I have replaced all Panaflo FBK-08A12H fans in my PS-53, TS850SAT and 
>> TS950SDX with the NF-R8 by Noctua. The original fans are difficult to 
>> find in Europe, and the NF-R8 is a much quieter fan (17 dB (A)) with a 53 
>> m3/h airflow. You will enjoy the silence in your shack. See: 
>> www.noctua.at
>>
>> 73 de OZ8CTH/Peter
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