the air comes out the back of the rig so that's maybe why you thought the
fan was back there...that's also where most of the fan noise comes from as
the air is being ducted to the rear to flow over the finals and so on.
I think they stuck the fan up front to help reduce heat from the display and
microprocessors located all around the display and front pannel.
There is a fan mod for the ts2000 where you can put in an after market fan
that runs much much quieter, as well as adjusting the air duct a bit to
reduce noise.
Some guys have also replaced a few resisters and basic components to tell
the fan to come on only when necesary and to run slower when not as much
cooling is needed.
The TM V7A was awful for fan noise as well...seems like kenwood tends to
over design the cooling systems in their radios in the hopes that the
components/finals will last a bit longer compared to other brands that tend
to over heat and malfunction sooner.
Any electric fan will also get noisier over time as the components and
lubrication inside the bushings start to decay. So, with the ts2000, having
the fan running so much, it'll only get noisier with time...catch 22 really.
apparently installing a new fan is easy as long as you can find a drop in
replacement.
I wonder why no one in the radio industry has started using liquid cooling
systems like you find on high speed processor computers.
Seems like it would be ultra quiet and more efficient for components that go
from cold to hot and back on a regular basses like finals do.
73
Colin, V A6BKX
----- Original Message -----
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, June 14, 2011 8:42 AM
Subject: Re: ordered a 590
> My mistake. I always thought the fan was at the rear, pulling air
> through the front vents and out the back. Of course I haven't had it
> open since I put the voice board in 10 years ago. I guess my memory
> went with my hair.
>
> 73, Steve KW3A
>
> On 6/14/2011 10:13 AM, John Miller wrote:
>> I don't know about your ts-2000 but the fan's in front of mine just
>> behind
>> the front panel. that was one of the first things I noticed when I opened
>> it
>> up to put the voice synth in and the recorder was how unusual that was to
>> me.
>> ----- Original Message -----
>> From: "Steve Forst"<[log in to unmask]>
>> To:<[log in to unmask]>
>> Sent: Tuesday, June 14, 2011 7:49 AM
>> Subject: Re: ordered a 590
>>
>>
>>> Bob,
>>>
>>> You are right about the difference in the fan activity between the 2000
>>> and 590. When I got my 2000 ten years ago, the amount of fan activity
>>> and fan noise was one of the first things I noticed.
>>>
>>> According to the 590's In Depth Manual (which is on the Kenwood site),
>>> they designed the radio for better cooling. Instead of the single fan
>>> on the rear panel of the 2000, there are 2 smaller fans running at lower
>>> speed placed at the front of the 590. Supposed to cool better at lower
>>> speed/noise.
>>>
>>> I'm enjoying mine and hope I get a decade of good use out of it as I
>>> did the 2000.
>>>
>>> 73, Steve KW3A
>>>
>>>
>>>
>>> On 6/13/2011 10:54 PM, Bob Tinney wrote:
>>>> Congratulations Butch and Tom!
>>>>
>>>> The TS590 has a fantastic receiver with tremendous dynamic range. And
>>>> another thing that I like is that the finals must be really efficient
>>>> as
>>>> the
>>>> fan almost never runs unlike my TS2000.
>>>>
>>>> Regarding the TS590, almost Everything talks and other keys give a
>>>> high-on
>>>> or low-off beep. The built in digital filtering works GREAT and the
>>>> band
>>>> skirts are very sharp with no strong signal feed through that I have
>>>> ever
>>>> seen.
>>>>
>>>> Have fun!
>>>>
>>>> Bob Tinney, K8LR, [log in to unmask]
>>>> Skype, bobtinn
>>>> There's amazing intelligence in the Universe.
>>>> You can tell because none of them ever called Earth.
>>>>
>>
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