Colin,
My guess is that fans are still the simplest and most inexpensive way to get
the job done. Maybe not the most efficient, but that depends on how you
define efficiency.
Steve
----- Original Message -----
From: "colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, June 14, 2011 16:05
Subject: Re: ordered a 590
> 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.
>>>>>
>>>
>
|
