Re: [Elecraft] KXAT100 "Hunting"

[Vic Rosenthal 4X6GP/K2VCO]

My guess is the same as yours -- common-mode current on the outside of 
the coax upsetting the tuner circuitry. If you have a large ferrite 
toroid (ferrite #31 should work on all bands), try winding several turns 
of the coax around it. It might work better near the rig or near the 
antenna.


Also, changing the length of the feedline might help. Odd multiples of 
1/4 wavelength are bad.


73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/

On 30 Jan 2016 19:54, Dauer, Edward wrote:

My KX-line tuner (the KXAT100 installed in the KXPA100 amp) recently
started an odd behavior.  I wonder if anyone can help explain it.  When
tuning into an indoor Buddipole set at resonance, the ATU finds a
near-perfect solution when the power applied during tuning stays below
about 40 watts.  With the ATU set in “auto” however, if the power out is
higher than 40 watts the tuner hunts without stopping.  I have watched the
SWR readings change, often going briefly to 1.0 or 1.1:1, but the tuner
just keeps hunting, endlessly, even when the frequency is unchanged.  Yet
when it is first tuned at a lower power, either in Auto or Manual-tune,
and the ATU is set to Manual, it stays at the solution perfectly well no
matter how high the power goes.  I can live with this, just by tuning at
low power and then switching to Manual, but I wonder why the Auto function
works well up to a certain point but goes berserk at any power higher than
that?  Is the higher ERP sneaking back into the control circuitry somehow?

Ted, KN1CBR

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[Elecraft] WTB: 200Hz filters

[W0FK]

Looking for a pair of matched 200Hz 5-pole filters. Please email asking price
with shipping to me at lladerman AT earthlink DOT net

73,

Lou, W0FK



-
St. Louis, MO
K3 #'s 7463 and 2513, P3 #620, KX1 #1517, KX3 #0036, KXPA100 #252

--
View this message in context: 
http://elecraft.365791.n2.nabble.com/WTB-200Hz-filters-tp7613322.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] K3: antenna dependent transmit power

[Jussi Eloranta]

Hi,

Is there any way to set the transmit power level based on the antenna 
setting on K3 (i.e., ANT1 or ANT2)?
I have two  antennas (connected to ANT1 and ANT2) that have different 
maximum power limits
and would like to make sure that I don't fry anything when switching 
antennas. I know that this
is a per band setting but it would be great to have it antenna dependent 
as well.


Jussi Eloranta (AA6KJ)
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Re: [Elecraft] MH2 vs MH3 mic question

[Don Wilhelm]

Ed,

No they are different.
Not only that the MH3 has a 3.5mm TRRS plug and a different mechanism 
for the MIC buttons(for the KX3) and the MH2 has an 8 pin Foster plug 
(for the K2, K3 and K3S).

The shape of the mic head is different too.
The mic element *may* be the same, but I am not certain of that.

73,
Don W3FPR

On 1/30/2016 11:56 AM, Eddy Avila wrote:

Does anyone know if the MH2 is the same mic as the MH3?
Tnx and 73



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[Elecraft] Digital Modes (PSK31 and JT-65) not working on 40 meters

[Larry Snyder]

PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
watts but then it immediately backs off to a fraction of a watt with no or
very little modulation on the P3 with the transmit monitor.

 

I change to 20 meters and everything works just fine.  Same computer, same
everything - only thing changing it the band switch on the K3??

 

Larry

 

--

Larry Snyder, RN.ORG, SA  - HK2LS

"Each and Every Day Thousands of Nurses Depend on www.RN.org
  for their Nursing CEUs!"

Sent via Dell Server/Retiro

 

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Re: [Elecraft] Digital Modes (PSK31 and JT-65) not working on 40 meters

[Nr4c]

Sorry. Something else changed. 

Antenna?
Mode?
To name two

Sent from my iPhone
...nr4c. bill


> On Jan 30, 2016, at 10:27 AM, Larry Snyder  wrote:
> 
> PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
> watts but then it immediately backs off to a fraction of a watt with no or
> very little modulation on the P3 with the transmit monitor.
> 
> 
> 
> I change to 20 meters and everything works just fine.  Same computer, same
> everything - only thing changing it the band switch on the K3??
> 
> 
> 
> Larry
> 
> 
> 
> --
> 
> Larry Snyder, RN.ORG, SA  - HK2LS
> 
> "Each and Every Day Thousands of Nurses Depend on www.RN.org
>   for their Nursing CEUs!"
> 
> Sent via Dell Server/Retiro
> 
> 
> 
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Re: [Elecraft] Digital Modes (PSK31 and JT-65) not working on 40 meters

[Don Wilhelm]

Larry,

Try doing the TX Gain Calibration.  It is quite easy to do from K3 
Utility.  If it fails in K3 Utility, then try doing it on a band by band 
basis as indicated in the Calibration section of the manual.


73,
Don W3FPR

On 1/30/2016 10:27 AM, Larry Snyder wrote:

PSK31 and JT-65 stopped working on 40 meters. . Initially I see the PO at 45
watts but then it immediately backs off to a fraction of a watt with no or
very little modulation on the P3 with the transmit monitor.

  


I change to 20 meters and everything works just fine.  Same computer, same
everything - only thing changing it the band switch on the K3??



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Re: [Elecraft] MH2 vs MH3 mic question

[Bob McGraw K4TAX]

The MH2 Hand Microphone is the result of a collaboration between Bob 
Heil of Heil Sound and Elecraft. The MH2 uses a high performance 
condenser element designed by Bob. It is optimally matched to the K2 and 
provides excellent SSB audio quality. MH2 Features: - - High output Heil 
microphone element - - Punchy, High Quality SSB audio in the Heil Sound 
tradition. - - Pre-wired 8 pin connector for the K2 - - Includes 
microphone mounting clip


The MH3 microphone is designed for use with the Elecraft KX3 
transceiver. It contains a high-performance condenser microphone element 
optimized for SSB, AM and FM use, a push-to-talk button and two function 
buttons to control the KX3 from the microphone



73
Bob, K4TAX


On 1/30/2016 10:56 AM, Eddy Avila wrote:

Does anyone know if the MH2 is the same mic as the MH3?
Tnx and 73
ed  
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[Elecraft] WTB KX3

[Tomy Ivan via Elecraft]

Looking to buy a nice KX3 Package.Please let me know what to have. 73! Tomy 
KF7GC
AZ STM 
NM AZ Section Net
ORS, www.atenaz.net
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[Elecraft] MH2 vs MH3 mic question

[Eddy Avila]

Does anyone know if the MH2 is the same mic as the MH3?
Tnx and 73
ed
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[Elecraft] KXAT100 "Hunting"

[Dauer, Edward]

My KX-line tuner (the KXAT100 installed in the KXPA100 amp) recently 
started an odd behavior.  I wonder if anyone can help explain it.  When 
tuning into an indoor Buddipole set at resonance, the ATU finds a 
near-perfect solution when the power applied during tuning stays below 
about 40 watts.  With the ATU set in “auto” however, if the power out is 
higher than 40 watts the tuner hunts without stopping.  I have watched the 
SWR readings change, often going briefly to 1.0 or 1.1:1, but the tuner 
just keeps hunting, endlessly, even when the frequency is unchanged.  Yet 
when it is first tuned at a lower power, either in Auto or Manual-tune, 
and the ATU is set to Manual, it stays at the solution perfectly well no 
matter how high the power goes.  I can live with this, just by tuning at 
low power and then switching to Manual, but I wonder why the Auto function 
works well up to a certain point but goes berserk at any power higher than 
that?  Is the higher ERP sneaking back into the control circuitry somehow?

Ted, KN1CBR
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Re: [Elecraft] K3 extra xmit frequency

[Richard Fjeld]

Just a passing thought.

If your friend was using an SDR pan adapter arrangement, it may have 
been an image.  


Dick, n0ce

On 1/28/2016 9:47 AM, Wayne Burdick wrote:

Bill,

This is a very unusual problem. Please contact customer support.

73,
Wayne
N6KR

On Jan 27, 2016, at 11:25 PM, Bill Stravinsky via Elecraft 
 wrote:


A friend of mine (100 miles away) recently noticed a dual signal being 
transmitted from my K3…


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[Elecraft] Quiet fans for K3

[drewko]

What are the current options for quiet fans for the K3? My original fans 
are pretty quiet but at this time of the year when the windows are 
closed and the ambient noise level is nil, the fan noise really starts 
to bug me. It's the very slight rattle they make when they start winding 
up.. (In the din of summertime, can't hear myself think, let alone fan 
noise.)


Sources? Prices?

Are the newer Elecraft fans quiet? My PA is only a couple of years old 
so the fans are pretty recent model.


73,
Drew
AF2Z
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Re: [Elecraft] Quiet fans for K3

[Guy Olinger K2AV]

This was discussed extensively in the past including alternate
brands, model numbers and sources. It's somewhere in the archives and
better than starting over from scratch.

73, Guy K2AV

On Saturday, January 30, 2016, drewko  wrote:

> What are the current options for quiet fans for the K3? My original fans
> are pretty quiet but at this time of the year when the windows are closed
> and the ambient noise level is nil, the fan noise really starts to bug me.
> It's the very slight rattle they make when they start winding up.. (In the
> din of summertime, can't hear myself think, let alone fan noise.)
>
> Sources? Prices?
>
> Are the newer Elecraft fans quiet? My PA is only a couple of years old so
> the fans are pretty recent model.
>
> 73,
> Drew
> AF2Z
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>


-- 
Sent via Gmail Mobile on my iPhone
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Re: [Elecraft] Quiet fans for K3

[Harry Yingst via Elecraft]

New Fan : Noctua NF-A6x25 FLXAirflow : 17 cfm (29.2 m3h converted to cfm)Noise 
: 19.3dbSpeed : 3000 RPM (at 12 v)Static Pressure : 2.18 mmCutent : 120 mA  
(.12 A)

Original Fan : UTEC AT6015L-12L2B-ND2Airflow : 15.4 cfmNoise : 24.8Speed : 3000 
RPM (at 12v)Static Pressure : 2.21mmCurrent : 100 mA
 

  From: drewko 
 To: elecraft@mailman.qth.net 
 Sent: Saturday, January 30, 2016 5:34 PM
 Subject: [Elecraft] Quiet fans for K3
   
What are the current options for quiet fans for the K3? My original fans 
are pretty quiet but at this time of the year when the windows are 
closed and the ambient noise level is nil, the fan noise really starts 
to bug me. It's the very slight rattle they make when they start winding 
up.. (In the din of summertime, can't hear myself think, let alone fan 
noise.)

Sources? Prices?

Are the newer Elecraft fans quiet? My PA is only a couple of years old 
so the fans are pretty recent model.

73,
Drew
AF2Z
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[Elecraft] New KX3 User

[Brian Short]

Received the KX3 today and had it on the air on 30m working SOTA and SKCC 
stations, so far.
Also, signed up for the KX3 Yahoo group (awaiting).  Any other resources I 
should check out?

Thanks.
--
http://www.qrz.com/db/k7on



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Re: [Elecraft] Quiet fans for K3

[Dave Hachadorian]

Here's a more specific link to the fans that I used:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835608032_mc=TEMC-RMA-Approvel_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-


Dave Hachadorian, K6LL
Yuma, AZ


-Original Message- 
From: drewko

Sent: Saturday, January 30, 2016 3:34 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Quiet fans for K3

What are the current options for quiet fans for the K3? My
original fans
are pretty quiet but at this time of the year when the windows
are
closed and the ambient noise level is nil, the fan noise really
starts
to bug me. It's the very slight rattle they make when they start
winding
up.. (In the din of summertime, can't hear myself think, let
alone fan
noise.)

Sources? Prices?

Are the newer Elecraft fans quiet? My PA is only a couple of
years old
so the fans are pretty recent model.

73,
Drew
AF2Z
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[Elecraft] Unpacking the K1 package contents

[Mark Petrovic]

Hi.

Would  someone please post pictures  of  the items

E72 - Thermal insulator

and


E100108  - Acylic  bezel

I am  having  trouble locating and identifying  them  as  I unpack  my
 new  K1  kit  contents.

Thanks.

-- 
Mark
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[Elecraft] KXAT100 "Hunting"

[Dauer, Edward]

Thanks, Don.  I will try adding feed line chokes (after rereading K9YC’s 
tutorials on the subject.)  Meanwhile, tuning at low power and then 
switching to manual does work, though it’s inconvenient with the Buddipole 
which in some configurations has a very sharp SWR null.  The Auto function 
is useful when prowling the entire band quickly from 7005 to 7055 or the 
like.  Tuning at low power then switching to manual with any significant 
frequency change adds a couple of steps . . . 

However, I have to confess that this is not one of life’s major issues.  I 
remember some years ago hearing someone complain that the driver’s side 
power window in his car did not have the function that allows the window 
to travel its full length with one flip of the switch, as most other cars 
do today.  His required that he actually hold the switch until the window 
was all the way up.  What an awful burden to bear, I thought.  My first 
car (a ’57 MGA) didn’t even have crank-up windows.  What MG then called 
windows were solid pieces of fabric and plastic in a steel frame that 
mounted into the doors on posts.  They could be in either of only two 
positions - on the door, or in the trunk.

Useful to remember when complaining about the limits of an auto-tune 
function.

Cheers,

Ted







On 1/30/16, 3:15 PM, "Don Wilhelm"  wrote:

>Ted,
>
>You may need additional current mode chokes on the feedline in addition 
>to the small ones provided by Buddipole.
>
>I would suggest "training" the tuner on each band segment that you want 
>to use and then put the tuner into MAN mode.
>I realize that is more difficult with the Buddipole because after 
>changing bands with its taps and element lengths, you might not end up 
>with exactly the same thing each time.
>So as an alternative, set the band on the Buddipole, then with the 
>KXPA100 in AUTO, do a TUNE at low power - when that tune completes, 
>switch to MAN mode and operate.  The KXPA100 should not automatically 
>tune in MAN mode.
>
>If you are operating SSB (and less often CW), there can be a false 
>sensing of a high SWR condition that will cause retuning if in AUTO mode.
>That is because of a combination of two things - first the syllabic 
>nature of SSB speech and secondly because the KXAT100 (and other tuners) 
>do not sample the forward and reverse voltage at the same instant.  So 
>if the forward voltage is sampled at a time when the RF output (do to 
>the variations in SSB speech) is low, and the subsequent sampling of the 
>reverse voltage happens to be at a time when the RF output is high, a 
>false computation of the SWR will result (it is all a matter of the math).
>
>In other words, once the antenna is tuned, switch to MAN mode on the 
>tuner.
>
>73,
>Don W3FPR
>
>On 1/30/2016 12:54 PM, Dauer, Edward wrote:
>> My KX-line tuner (the KXAT100 installed in the KXPA100 amp) recently
>> started an odd behavior.  I wonder if anyone can help explain it.  When
>> tuning into an indoor Buddipole set at resonance, the ATU finds a
>> near-perfect solution when the power applied during tuning stays below
>> about 40 watts.  With the ATU set in “auto” however, if the power out is
>> higher than 40 watts the tuner hunts without stopping.  I have watched 
>>the
>> SWR readings change, often going briefly to 1.0 or 1.1:1, but the tuner
>> just keeps hunting, endlessly, even when the frequency is unchanged.  
>>Yet
>> when it is first tuned at a lower power, either in Auto or Manual-tune,
>> and the ATU is set to Manual, it stays at the solution perfectly well no
>> matter how high the power goes.  I can live with this, just by tuning at
>> low power and then switching to Manual, but I wonder why the Auto 
>>function
>> works well up to a certain point but goes berserk at any power higher 
>>than
>> that?  Is the higher ERP sneaking back into the control circuitry 
>>somehow?
>>
>> Ted, KN1CBR
>> __
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>> Message delivered to w3...@embarqmail.com
>
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Re: [Elecraft] Unpacking the K1 package contents

[Mark Petrovic]

I found  the parts.  They were both in an  envelope labeled "E850040 -
 Serial Number kit,  K1".

On Sat, Jan 30, 2016 at 3:49 PM, Mark Petrovic  wrote:
> Hi.
>
> Would  someone please post pictures  of  the items
>
> E72 - Thermal insulator
>
> and
>
>
> E100108  - Acylic  bezel
>
> I am  having  trouble locating and identifying  them  as  I unpack  my
>  new  K1  kit  contents.
>
> Thanks.
>
> --
> Mark



-- 
Mark
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Re: [Elecraft] Unpacking the K1 package contents

[Byron Servies]

The K1 manual has an image of the insulator in the inventory section. The
bezel is a piece of clear plastic about 2.5cm X 7.5cm with holes in the
corners. You can see an image in any product shot at Elecraft.com showing
the front of the K1: it covers the lcd display.

 These items and the serial number will be in separate manila
envelopes. I'm sorry I cannot post pictures. I completed my kit years ago.

HTH, 73,

Byron N6NUL

On Saturday, January 30, 2016, Mark Petrovic  wrote:

> Hi.
>
> Would  someone please post pictures  of  the items
>
> E72 - Thermal insulator
>
> and
>
>
> E100108  - Acylic  bezel
>
> I am  having  trouble locating and identifying  them  as  I unpack  my
>  new  K1  kit  contents.
>
> Thanks.
>
> --
> Mark
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>


-- 
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org
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[Elecraft] K3S Raffle and St. Patrick's Day Hamfest

[Alan Sewell N5NA]

The Midland (TX) Amateur Radio Club is pleased to announce the 61st 
annual St. Patrick's Day Hamfest to be held on March 19, 2016.  In 
conjunction with the hamfest the club is raffling an Elecraft K3S with 
MH2 mic.  A maximum of 300 tickets will be sold at $20 each.


Complete details of the hamfest and raffle are available at 
 or raffle only at .


73 & GL,

Alan N5NA
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Re: [Elecraft] Quiet fans for K3

[Harry Yingst via Elecraft]

I was the one who pretty much started this whole thing way back when
here are the specs
New Fan : Noctua NF-A6x25 FLXAirflow : 17 cfm (29.2 m3h converted to cfm)Noise 
: 19.3dbSpeed : 3000 RPM (at 12 v)Static Pressure : 2.18 mmCutent : 120 mA  
(.12 A)

Original Fan : UTEC AT6015L-12L2B-ND2Airflow : 15.4 cfmNoise : 24.8Speed : 3000 
RPM (at 12v)Static Pressure : 2.21mmCurrent : 100 mA
 

  From: Guy Olinger K2AV 
 To: "drew...@verizon.net"  
Cc: "elecraft@mailman.qth.net" 
 Sent: Saturday, January 30, 2016 6:19 PM
 Subject: Re: [Elecraft] Quiet fans for K3
   
This was discussed extensively in the past including alternate
brands, model numbers and sources. It's somewhere in the archives and
better than starting over from scratch.

73, Guy K2AV

On Saturday, January 30, 2016, drewko  wrote:

> What are the current options for quiet fans for the K3? My original fans
> are pretty quiet but at this time of the year when the windows are closed
> and the ambient noise level is nil, the fan noise really starts to bug me.
> It's the very slight rattle they make when they start winding up.. (In the
> din of summertime, can't hear myself think, let alone fan noise.)
>
> Sources? Prices?
>
> Are the newer Elecraft fans quiet? My PA is only a couple of years old so
> the fans are pretty recent model.
>
> 73,
> Drew
> AF2Z
> __
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> Message delivered to k2av@gmail.com
>


-- 
Sent via Gmail Mobile on my iPhone
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Re: [Elecraft] KXAT100 "Hunting"

[Don Wilhelm]

Ted,

You may need additional current mode chokes on the feedline in addition 
to the small ones provided by Buddipole.


I would suggest "training" the tuner on each band segment that you want 
to use and then put the tuner into MAN mode.
I realize that is more difficult with the Buddipole because after 
changing bands with its taps and element lengths, you might not end up 
with exactly the same thing each time.
So as an alternative, set the band on the Buddipole, then with the 
KXPA100 in AUTO, do a TUNE at low power - when that tune completes, 
switch to MAN mode and operate.  The KXPA100 should not automatically 
tune in MAN mode.


If you are operating SSB (and less often CW), there can be a false 
sensing of a high SWR condition that will cause retuning if in AUTO mode.
That is because of a combination of two things - first the syllabic 
nature of SSB speech and secondly because the KXAT100 (and other tuners) 
do not sample the forward and reverse voltage at the same instant.  So 
if the forward voltage is sampled at a time when the RF output (do to 
the variations in SSB speech) is low, and the subsequent sampling of the 
reverse voltage happens to be at a time when the RF output is high, a 
false computation of the SWR will result (it is all a matter of the math).


In other words, once the antenna is tuned, switch to MAN mode on the tuner.

73,
Don W3FPR

On 1/30/2016 12:54 PM, Dauer, Edward wrote:

My KX-line tuner (the KXAT100 installed in the KXPA100 amp) recently
started an odd behavior.  I wonder if anyone can help explain it.  When
tuning into an indoor Buddipole set at resonance, the ATU finds a
near-perfect solution when the power applied during tuning stays below
about 40 watts.  With the ATU set in “auto” however, if the power out is
higher than 40 watts the tuner hunts without stopping.  I have watched the
SWR readings change, often going briefly to 1.0 or 1.1:1, but the tuner
just keeps hunting, endlessly, even when the frequency is unchanged.  Yet
when it is first tuned at a lower power, either in Auto or Manual-tune,
and the ATU is set to Manual, it stays at the solution perfectly well no
matter how high the power goes.  I can live with this, just by tuning at
low power and then switching to Manual, but I wonder why the Auto function
works well up to a certain point but goes berserk at any power higher than
that?  Is the higher ERP sneaking back into the control circuitry somehow?

Ted, KN1CBR
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Re: [Elecraft] Quiet fans for K3

[Gary]

Drew,

I don't think I have ever heard mine on #679.
I must admit my hearing is not perfect, however, I operate daily at 80w, I have 
no air conditioning, I operate inside my motor home in a confined area and 
still no sound.
I am wondering if you have an issue with the fans. Has it always been like it 
is now?, have you pulled them to check them?
I would suspect there may be a problem and either lubrication or a mechanical 
issue may be the culprit?
Sewing machine oil may help.
73
Gary 

-Original Message-
From: "drewko" 
Sent: ‎31/‎01/‎2016 8:35 AM
To: "elecraft@mailman.qth.net" 
Subject: [Elecraft] Quiet fans for K3

What are the current options for quiet fans for the K3? My original fans 
are pretty quiet but at this time of the year when the windows are 
closed and the ambient noise level is nil, the fan noise really starts 
to bug me. It's the very slight rattle they make when they start winding 
up.. (In the din of summertime, can't hear myself think, let alone fan 
noise.)

Sources? Prices?

Are the newer Elecraft fans quiet? My PA is only a couple of years old 
so the fans are pretty recent model.

73,
Drew
AF2Z
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[Elecraft] ERR BP3 and ERR IF2

[Johnny Siu]

 Thanks for the hints.  The problem went away after I simply swapped the KNB3 
boards between the main and KRX3.
73
Johnny VR2XMC

  寄件人︰ Klaus Koppendorfer 
 收件人︰ Johnny Siu ; Elecraft  
 傳送日期︰ 2016年01月29日 (週五) 7:33 PM
 主題︰ AW: [Elecraft] ERR BP3 and ERR IF2
   
Clean the contacts from frontpanel to mainboard


-Ursprüngliche Nachricht-
Von: Elecraft [mailto:elecraft-boun...@mailman.qth.net] Im Auftrag von Johnny 
Siu
Gesendet: Freitag, 29. Jänner 2016 11:06
An: Elecraft 
Betreff: [Elecraft] ERR BP3 and ERR IF2

Hello Elecrafters,
I have just done the KBPF3 modification in the sub receiver KRX3. However, upon 
turn on the K3, I got the error messages ERR BP3 and ERR IF2.
I tried to access the CONFIG menu. I can get KIO3 and KPA3 but not KNB3.  In 
other words, KIO3 is after by KPA3 in the CONFIG menu and no KNB3.
Any advice before I shoot an email to elecraft support.
73
Johnny VR2XMC
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Re: [Elecraft] Quiet fans for K3

[Dave Hachadorian]

Search the archives for "Noctua."

You will find numerous references to the Noctua NF-A6X25R, 
available at Newegg for $15.  Use the mounting hardware that 
comes with the Noctua, and save all the old fan stuff so you can 
restore it all to original if You ever need to.


I installed these about a year ago, and they are indeed quieter 
and blow more air.  For a 100 watt RTTY contest, I set the fans 
at minimum speed = 2, and they never speed up from that level, 
despite the heavy duty cycle.


The most irritating part about the stock fans was the whiney 
noise they would make while spooling up and down as they changed 
speed.


If you're not a contester, you may never hear the fans, so it may 
not be an issue :)


Dave Hachadorian, K6LL
Yuma, AZ



-Original Message- 
From: drewko

Sent: Saturday, January 30, 2016 3:34 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Quiet fans for K3

What are the current options for quiet fans for the K3? My 
original fans
are pretty quiet but at this time of the year when the windows 
are
closed and the ambient noise level is nil, the fan noise really 
starts
to bug me. It's the very slight rattle they make when they start 
winding
up.. (In the din of summertime, can't hear myself think, let 
alone fan

noise.)

Sources? Prices?

Are the newer Elecraft fans quiet? My PA is only a couple of 
years old

so the fans are pretty recent model.

73,
Drew
AF2Z
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Re: [Elecraft] Quiet fans for K3

[K9ZTV]

Ditto with sn 21.  Have never heard the fans. 

K9ZTV

> On Jan 30, 2016, at 4:51 PM, Ken G Kopp  wrote:
> 
> I have SN 0056 and like Gary have never heard the fans.  I -have-
> occasionally looked to make sure they're indeed running.  They're so quiet
> that if they weren't I probably wouldn't know it.  (;-)
> 
> 73
> 
> Ken - K0PP
>> On Jan 30, 2016 3:44 PM, "Gary"  wrote:
>> 
>> Drew,
>> 
>> I don't think I have ever heard mine on #679.
>> I must admit my hearing is not perfect, however, I operate daily at 80w, I
>> have no air conditioning, I operate inside my motor home in a confined area
>> and still no sound.
>> I am wondering if you have an issue with the fans. Has it always been like
>> it is now?, have you pulled them to check them?
>> I would suspect there may be a problem and either lubrication or a
>> mechanical issue may be the culprit?
>> Sewing machine oil may help.
>> 73
>> Gary
>> 
>> -Original Message-
>> From: "drewko" 
>> Sent: ‎31/‎01/‎2016 8:35 AM
>> To: "elecraft@mailman.qth.net" 
>> Subject: [Elecraft] Quiet fans for K3
>> 
>> What are the current options for quiet fans for the K3? My original fans
>> are pretty quiet but at this time of the year when the windows are
>> closed and the ambient noise level is nil, the fan noise really starts
>> to bug me. It's the very slight rattle they make when they start winding
>> up.. (In the din of summertime, can't hear myself think, let alone fan
>> noise.)
>> 
>> Sources? Prices?
>> 
>> Are the newer Elecraft fans quiet? My PA is only a couple of years old
>> so the fans are pretty recent model.
>> 
>> 73,
>> Drew
>> AF2Z
>> __
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Re: [Elecraft] Unpacking the K1 package contents

[Ron D'Eau Claire]

Hello Mark: 

The "thermal insulator" is a thin flexible rectangular bit about 1/2" by
3/4" in size that has a hole near one end and is self-stick, so it is
supplied on a bit of backing paper you peel it off of when you install it on
the power transistor. It may be in one of the little brown envelopes. There
is a photograph of it still mounted on its backing paper in the parts list. 

The Acrylic Bezel is the plastic cover over the LCD on the front panel. Look
at the drawing of the K1 on the front cover of your manual and you'll see a
rectangle depicting the cover with a screw at each corner covering the LCD
itself and the words "Elecraft" and "K1 Transceiver". It should be in one of
the brown envelopes in the kit. 

73, Ron AC7AC

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark
Petrovic
Sent: Saturday, January 30, 2016 3:50 PM
To: elecr...@qth.net
Subject: [Elecraft] Unpacking the K1 package contents

Hi.

Would  someone please post pictures  of  the items

E72 - Thermal insulator

and


E100108  - Acylic  bezel

I am  having  trouble locating and identifying  them  as  I unpack  my  new
K1  kit  contents.

Thanks.

--
Mark
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Re: [Elecraft] Quiet fans for K3

[Ken G Kopp]

I have SN 0056 and like Gary have never heard the fans.  I -have-
occasionally looked to make sure they're indeed running.  They're so quiet
that if they weren't I probably wouldn't know it.  (;-)

73

Ken - K0PP
On Jan 30, 2016 3:44 PM, "Gary"  wrote:

> Drew,
>
> I don't think I have ever heard mine on #679.
> I must admit my hearing is not perfect, however, I operate daily at 80w, I
> have no air conditioning, I operate inside my motor home in a confined area
> and still no sound.
> I am wondering if you have an issue with the fans. Has it always been like
> it is now?, have you pulled them to check them?
> I would suspect there may be a problem and either lubrication or a
> mechanical issue may be the culprit?
> Sewing machine oil may help.
> 73
> Gary
>
> -Original Message-
> From: "drewko" 
> Sent: ‎31/‎01/‎2016 8:35 AM
> To: "elecraft@mailman.qth.net" 
> Subject: [Elecraft] Quiet fans for K3
>
> What are the current options for quiet fans for the K3? My original fans
> are pretty quiet but at this time of the year when the windows are
> closed and the ambient noise level is nil, the fan noise really starts
> to bug me. It's the very slight rattle they make when they start winding
> up.. (In the din of summertime, can't hear myself think, let alone fan
> noise.)
>
> Sources? Prices?
>
> Are the newer Elecraft fans quiet? My PA is only a couple of years old
> so the fans are pretty recent model.
>
> 73,
> Drew
> AF2Z
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Re: [Elecraft] Quiet fans for K3

[Jim Finan]

I use Noctua fans for most everything. Have used them for years and haven't had 
any failures. I use them for all systems I build for clients and myself. They 
have several varieties for each size and the ones with rubber mounts are 
generally the most quiet.  Also have a choice of 3 and 4 pin plugs.

While most of their fans come with rubber mounting hardware, the ones I suggest 
have rubber inserts surrounding the bolt/screw holes‎.

Noctua is an Austrian company but fans are built in the orient. Top quality 
with 'SSO2' bearings. 

Both Amazon and Newegg have them and the prices generally run from about 
$15-18. Just make sure the specs (CFM)  match (or are better).

While I haven't measured them on mine, they look like 80mm.

Jim
AB4AC
Jim Finan
‎
Sent from my BlackBerry 10 smartphone.
  Original Message  
From: drewko
Sent: Saturday, January 30, 2016 5:35 PM
To: elecraft@mailman.qth.net
Reply To: drew...@verizon.net
Subject: [Elecraft] Quiet fans for K3

What are the current options for quiet fans for the K3? My original fans 
are pretty quiet but at this time of the year when the windows are 
closed and the ambient noise level is nil, the fan noise really starts 
to bug me. It's the very slight rattle they make when they start winding 
up.. (In the din of summertime, can't hear myself think, let alone fan 
noise.)

Sources? Prices?

Are the newer Elecraft fans quiet? My PA is only a couple of years old 
so the fans are pretty recent model.

73,
Drew
AF2Z
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Re: [Elecraft] KXAT100 "Hunting"

[Bob McGraw K4TAX]

Candidly, I would be more concerned about exceeding the RF Exposure 
limits with this arrangement.  Perhaps the "Tuner issue" is an 
indication of such.  From your description, at 100 watts you will likely 
be way outside of the FCC limits of safe RF Exposure.


Now with that said, the amount of RF at the TUNE level is not such to 
confuse the tuner.  However at 40+ watts the RF back into the system is 
more than the system can accurately handle.  A bunch of #31 beads or #73 
beads, where "bunch" = 50 pcs or more, on the feed line at the antenna 
feed point and again a bunch at the radio. This may help the radio and 
antenna problem associated with the auto tune routine.  You may find the 
same treatment required on the DC power cable at the radio.


73
Bob, K4TAX





On 1/30/2016 12:54 PM, Dauer, Edward wrote:

My KX-line tuner (the KXAT100 installed in the KXPA100 amp) recently
started an odd behavior.  I wonder if anyone can help explain it.  When
tuning into an indoor Buddipole set at resonance, the ATU finds a
near-perfect solution when the power applied during tuning stays below
about 40 watts.  With the ATU set in “auto” however, if the power out is
higher than 40 watts the tuner hunts without stopping.  I have watched
the
SWR readings change, often going briefly to 1.0 or 1.1:1, but the tuner
just keeps hunting, endlessly, even when the frequency is unchanged.
Yet
when it is first tuned at a lower power, either in Auto or Manual-tune,
and the ATU is set to Manual, it stays at the solution perfectly well no
matter how high the power goes.  I can live with this, just by tuning at
low power and then switching to Manual, but I wonder why the Auto
function
works well up to a certain point but goes berserk at any power higher
than
that?  Is the higher ERP sneaking back into the control circuitry
somehow?

Ted, KN1CBR
_



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Re: [Elecraft] Unpacking the K1 package contents

[Fred Jensen]

I believe he has found it, but this and Don's reply are right on.  So 
many times, a new ham is trying to "count the parts" and runs across a 
term that could be Swahili as far as he knows ... Who would think that a 
"thermal insulator" looks like a little rectangular tab of paper buried 
in a small envelope ... I'd have thought of "blanket" like on the water 
heater.  I think that's what this list is for.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 1/30/2016 4:50 PM, Byron Servies wrote:

The K1 manual has an image of the insulator in the inventory section. The
bezel is a piece of clear plastic about 2.5cm X 7.5cm with holes in the
corners. You can see an image in any product shot at Elecraft.com showing
the front of the K1: it covers the lcd display.

  These items and the serial number will be in separate manila
envelopes. I'm sorry I cannot post pictures. I completed my kit years ago.

HTH, 73,

Byron N6NUL


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Re: [Elecraft] Quiet fans for K3

[Edward R Cole]

I never hear the fan on my KXPA-100 - Ha!

Of course it doesn't have one but works fine for up to 110w with my 
KX3 or K3/10.  Made several 6m-SSB contacts with 80w for the ARRL VHF 
Contest this weekend.


73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] [KX3] New KX3 User

[Brian Short]

Yeah, so far so good - pretty straight forward :)  Thanks Don.

On Jan 30, 2016, at 9:20 PM, Don Wilhelm wrote:
> Brian,
> 
> I do not know of a "learning curve" other than a study of the manual which 
> will tell you how to use the buttons and the VFO to produce the effects you 
> want.
> 
> The listing of the menu functions for the KX3 (or any other transceiver) will 
> give you information about how the transceiver can be customized to fit your 
> particular needs and operating style.  Look at the menu settings chart in the 
> manual.
> 
> 73,
> Don W3FPR
> 
> On 1/30/2016 10:26 PM, Brian Short 520sh...@gmail.com [KX3] wrote:
>> KX3 arrived today (with ATU & roofing filter).
>> 
>> 
>> Have it on the air and made several contacts in the 160m CW contest, now.
>> 

--
http://www.qrz.com/db/k7on



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