double check the fan wires that run between the fan casing and the
back panel - it might not be possible to see those from the top and
you would need to remove the fans from the back panel.
But you might be able to tell by slowly rotating the fan manually, if
it was a wire, you might be able
Hi All,
The fan noise does not get louder than my tinitus until on speed 4, and then I
can only hear air noise.
73
Tim
gm4lmh # 1245
- Original Message -
From: Barry Simpson
To: elecraft@mailman.qth.net
Sent: Wednesday, December 10, 2008 9:33 AM
Subject: [Elecraft] K3:
Take the top cover off the radio Charlie and check for nearby connecting
wires contacting the fans - when they do you get an alarming buzz but if the
degree of contact is very slight I presume it may just sound like a 'normal'
noisy fan. The K3 fans are completely noiseless.
BTW you don't have
The fans are whisper quiet on the K3, if yours aren’t there is
something wrong - possibly as suggested by Stewart below, a wire
touching the hub or the blades, or possibly a missing washer causing
distortion to the fan casing.
Mine just don't come on and I have to use the CONFIG menu entry
Charlie,
Yes, I have battled the fan noise, too. I got replacement fans which
seemed a little quieter, but I still had no doubt when they were
running. I noticed that if I removed the fan panel from the rig and
held it in my hand while the fans were running, they were very quiet.
So I
That's how my K3 is set up too, in a corner where walls can reflect
any noise.
I still think there is something else wrong.
73 de M0XDF, K3 #174
--
They know enough who know how to learn. -Henry Adams (1838-1918)
On 9 Dec 2008, at 14:55, Joe Planisky wrote:
I've also found that where I place
I think you got lucky and have extra quiet fans :-)
73
--
Joe KB8AP
On Dec 9, 2008, at 7:20 AM, David Ferrington, M0XDF wrote:
That's how my K3 is set up too, in a corner where walls can reflect
any noise.
I still think there is something else wrong.
73 de M0XDF, K3 #174
--
They know enough
I can't hear my fans at all. I periodically turn them on from the menu to make
sure they are working. The back of the K3 is just a few inches from the wall
so I would expect any sound to be reflected right back to me. On the other
hand the fan on my 746Pro (sitting right next to it) is very
My fans make no audible sound.
Monty K2DLJ a/n 699
I think you got lucky and have extra quiet fans :-)
73
--
Joe KB8AP
On Dec 9, 2008, at 7:20 AM, David Ferrington, M0XDF wrote:
That's how my K3 is set up too, in a corner where walls can reflect
any noise.
I still think there is
No fan noise here. Actually had to look closely. Yep! They are running.
73 de KE4WY Jim
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rob May
Sent: Tuesday, December 09, 2008 10:58 AM
To: elecraft@mailman.qth.net
Subject: RE: [Elecraft] K3 Noisy fans
: elecraft@mailman.qth.net
Sent: Tuesday, December 09, 2008 4:56 PM
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky and have extra quiet fans :-)
73
--
Joe KB8AP
On Dec 9, 2008, at 7:20 AM, David Ferrington, M0XDF wrote:
That's how my K3 is set up too, in a corner where walls can
PROTECTED] On Behalf Of Joe Planisky
Sent: Tuesday, December 09, 2008 7:56 AM
To: David Ferrington, M0XDF
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky and have extra quiet fans :-)
73
--
Joe KB8AP
On Dec 9, 2008, at 7:20 AM, David Ferrington, M0XDF wrote
-Original Message-
From: [EMAIL PROTECTED] [mailto:elecraft-
[EMAIL PROTECTED] On Behalf Of Joe Planisky
Sent: Tuesday, December 09, 2008 7:56 AM
To: David Ferrington, M0XDF
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky and have extra
Though my K3 is still in utero and I have no personal experence with
the fan noise on it yet, I might suggest getting some foam baffling
like you see on some speaker grills and mount that behind the radio
and if possible, angle the batting to deflect the fans sound waves
above or below, so
Sent: Tuesday, December 09, 2008 9:56 AM
To: David Ferrington, M0XDF
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky and have extra quiet fans :-)
73
--
Joe KB8AP
___
Elecraft mailing list
Post to: Elecraft
I think you got lucky and have extra quiet fans :-)
I had to look, or feel, to see that mine were running during the build
test
of the fans. Very quite even at the forth setting.
Adam - KA7ARK
They have fans on them? Guess I better take a look and make sure there are
some installed on
When I received my factory built K3 last spring (#1001) I thought
the fans were louder than I expected after reading about folks
who had to physically check to see if there fans were on. I could
hear the fans start up through my headphones when PA temp hit 37C.
I sent the rig back and the good
Has anyone tried to quiet them down with vibration
isolators, etc?
Wow, I have never heard my fans, not a peep. I have seen them run and felt
the air flow out the back but sound, no.
Something sounds wrong with your fans.
Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1 #1311
I have certainly been surprised by folks who say they cannot hear their
fans. I can (although they rarely come on) and I even had Gary send some
replacement units, but when I changed them over the improvement was not
great. I've checked all likely reasons, it's not the sound of a fan
touching
it.
Ron AC7AC
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Joe Planisky
Sent: Tuesday, December 09, 2008 7:56 AM
To: David Ferrington, M0XDF
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky and have extra quiet
Joe
My fans are Utec too, same part numbers too. I wonder why the part numbers
are different?
73 Stephen G4SJP
On 09/12/2008 18:43, Joe Planisky [EMAIL PROTECTED] wrote:
I stand corrected. There are apparently a lot of quiet K3s out there.
I wonder if the quiet fans are from a
The fan noise depends on the fan setting, which in turn depends not only on
the duty cycle but also on the ambient temperature.
On mine (#1595), FAN1 is almost inaudible (almost completely drowned out by
the noise of my computer's fan), FAN2 is audible but not obtrusive, and FAN3
and FAN4 get
Serial No. 21 . . . absolutely zero fan noise.
Kent K9ZTV
Ron D'Eau Claire wrote:
There were a number of comments among the first customers that the fans were
so quiet they couldn't tell if they were running without turning the rig
around and looking at them.
That's how mine are too
-Original Message-
From: [EMAIL PROTECTED] [mailto:elecraft-
[EMAIL PROTECTED] On Behalf Of Stephen Prior
Sent: Tuesday, December 09, 2008 10:52 AM
To: elecraft
Subject: Re: [Elecraft] K3 Noisy fans?
Joe
I wonder why the part
numbers
are different?
Maybe because the power
No noise here. I often run barefoot with no amp, no headphones, no computer,
and the rig is in a corner!
Jack AE6GC K3-100 Kit #1433
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber
I find that at an ambient temp. of about 17C, 75 W into a dummy load,
it takes about a minute and a half of CW at 18 WPM to raise the PA
temp from 23C to 37C, the temp at which the fans come on at the
slowest speed.
73
--
Joe KB8AP
On Dec 9, 2008, at 10:55 AM, Richard Ferch wrote:
The
Adam Koczarski wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:elecraft-
[EMAIL PROTECTED] On Behalf Of Joe Planisky
Sent: Tuesday, December 09, 2008 7:56 AM
To: David Ferrington, M0XDF
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky
Wow, I have never heard my fans, not a peep. I have seen them run and felt
the air flow out the back but sound, no.
I regularly run around to the backside of the table to check that
haven't been stolen or dropped off or... ;-)
I can confirm that my K3's blowers are barely audible, as others
Thanks Tom (and several others too!), I'll contact Elecraft.
Screws tight, but not over-tightened. Finger
guards centered. Fans move air in the right
direction. Also, nothing touching the blades.
I did notice that the instructions said to install some bushings at the
corners of the fans.
I'm glad someone brought this up.
My question is: What is the safe temp range for the KPA3? I can get the PA
temp up to 56C at full power (100W). Fans are of course on full-bore at this
point and I still can barely hear them.
At what PA Temp do I need to be concerned?
I'm using the
] On Behalf Of Joe Planisky
Sent: Tuesday, December 09, 2008 7:56 AM
To: David Ferrington, M0XDF
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky and have extra quiet fans :-)
73
--
Joe KB8AP
On Dec 9, 2008, at 7:20 AM, David Ferrington, M0XDF wrote:
That's
and nothing
was touching the blades.
Ron AC7AC
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Missouri Guy
Sent: Tuesday, December 09, 2008 12:37 PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
Thanks Tom (and several others too!), I'll contact
PROTECTED] On Behalf Of Joe Planisky
Sent: Tuesday, December 09, 2008 7:56 AM
To: David Ferrington, M0XDF
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Noisy fans?
I think you got lucky and have extra quiet fans :-)
73
--
Joe KB8AP
On Dec 9, 2008, at 7:20 AM, David Ferrington, M0XDF wrote
We're good to at least 85C (which is still below the max temp for the
transistors) where the firmware will automatically drop the 100W amp out
of line to protect it.
You can run all day below that level.
73, Eric WA6HHQ
Jeff Wandling W7BRS via K3List wrote:
I'm glad someone brought this
I ran my K3 hard enough over the weekend to think about monitoring the PA
temp. As I was CQing on Saturday when condx were el-stinko from where I am
and responses were few and far between I watched the temp slowly rise until
it got to 50C and then stabilize. Curious to see what the fans sounded
I was trying to ferret out some weak signals on 160m when the
cooling fans switched on, making it very hard to hear over
the whine of the fans (or fan) even through the padding on
my headphones.
Has anyone tried to quiet them down with vibration isolators, etc?
This is not normal.
.
Maybe some of us have got fans which is not within Elecrafts specs ?
73,
Trond LA8NHA
K1 # 1995
K2 # 6594
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Sendt: 09 December, 2008 7:24 AM
Til: Elecraft@mailman.qth.net
Emne: RE: [Elecraft] K3 Noisy fans
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