Re: [Elecraft] KX2/KX3 built-in speakers

[Barthold Lichtenbelt via Elecraft]

I find the KX3 internal speaker OK, but not great. I found this amazingly
small, powered (internal battery) speaker that is a huge upgrade, and weighs
almost nothing. Important if you go back packing.

https://www.amazon.com/gp/product/B01HB18IZ4/ref=oh_aui_search_detailpage?ie
=UTF8=1

Barthold

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Christopher Hoover
Sent: Friday, September 08, 2017 6:51 PM
To: j...@audiosystemsgroup.com
Cc: Elecraft Reflector
Subject: Re: [Elecraft] KX2/KX3 built-in speakers

On Fri, Sep 8, 2017 at 5:01 PM, Jim Brown  wrote:

> On 9/8/2017 3:00 PM, Christopher Hoover wrote:
>
>> I find the KX2 audio level to be borderline in most field situations.
>>
>
> It depends a lot on what sort of "field" you happen to be in.


+1
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Re: [Elecraft] Adjusting Audio Level for Digital Modes

[Bob McGraw K4TAX]

As an operational note for WSJT-X.  Version 1.8.0 -rc2

To adjust the audio level via the software slider marked *Pwr* on the 
right, I find it more precise to place the cursor just above or just 
below the slider bar, depending which way you wish the audio level to 
go, and click the left mouse button one time. This will move the slider 
to the next step.  I find this to be easier than placing the cursor on 
the slider and trying to move it up or down.


Also you will find on the WSJT-X  Audio tab via the F2 menu, there are 
two boxes, if checked the software will remember the settings for each 
band for both /TRANSMIT /audio level and /TUNE/ audio level functions.   
You must set your Windows SPEAKER level to the same value each time for 
this to be effective.   I use 25% {or -21 dB} in my configuration.   The 
WSJT-X *Pwr *slider operates about mid scale for correct level to the 
K3S.   Due to differences in computers, sound cards and etc.  you will 
need to experiment a bit in order to get the exact numbers nailed down 
as required by your station.  Do anticipate that Windows _will change_ 
the SPEAKER value if and when you run other applications requiring the 
sound card function.


If you are not getting good decodes, I suggest you check the Recording 
Devices level.  Right click the Speaker ICON and select Recording 
Devices.   Specifically the USB CODEC Properties and Levels to see that 
the level control  is about 50% to 55%  {-1 dB to + 1 dB}.  Via the 
CONFIG menu I did adjust the K3S Line Out from the default value of "nor 
010" to a value of "nor 005".  This will reduce the likely hood of sound 
card overdrive or saturation of the transformers in the K3S.



73
Bob, K4TAX



On 9/8/2017 5:36 PM, MaverickNH wrote:

At present, I have my PC's USB Audio Codec Playback Level set at 35%, and am
adjusting ALC with the MIC knob. With the WSTJ-X Tune ON, I'm slowly
increasing MIC until the 3rd bar shows. Further increase jumps directly to
the 5th bar, with no 4th bar appearing or flashing 5th bar.
I could swear I used to be able to get that flickering 5th bar. Must be I
have something else set incorrectly?

But either way, I must have nudged the MIC button as now things seem OK. Any
way to lock that? As such, when pressing the K3S TUNE button ON, the POWER
knob on the K3S adjusts power smoothly up on the K3S (as seen on the P3TXMON
and K3S display) with KPA500 off. With KPA500 ON, increasing K3S power knob
increases KPA500 display power, with the P3TXMON going up too.

I'll have to add "check ALC/MIC setting to my WSJT-X Cheat Sheet. Thanks for
the help guys.

BRET/N4SRN



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Re: [Elecraft] KX2/KX3 built-in speakers

[Christopher Hoover]

On Fri, Sep 8, 2017 at 5:01 PM, Jim Brown  wrote:

> On 9/8/2017 3:00 PM, Christopher Hoover wrote:
>
>> I find the KX2 audio level to be borderline in most field situations.
>>
>
> It depends a lot on what sort of "field" you happen to be in.


+1
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Re: [Elecraft] TX Mode issue

[Josh]

I had these exact symptoms. It turned out that Tx Inhibit was enabled, but the 
hardware line was left floating. 

73,
Josh W6XU

Sent from my mobile device

> 
> ...there are instances where I go to transmit and find the TX test mode is 
> enabled.  Furthermore, the front panel switch will not turn it off.  I have 
> to cycle power. Additionally, I don't have to be doing anything, it's 
> happened with me out of the shack.
> 
> 

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Re: [Elecraft] KX2/KX3 built-in speakers

[Jim Brown]

On 9/8/2017 3:00 PM, Christopher Hoover wrote:

I find the KX2 audio level to be borderline in most field situations.


It depends a lot on what sort of "field" you happen to be in. On a quiet 
mountaintop or spot in the woods, it's plenty good enough unless you 
happen to have much hearing loss. If the "field" is noisy (N6WM's 
example of surf on the beach is a good one) or if you're in a moving 
vehicle or parked along a busy road, it's probably not nearly loud enough.


The KX2 and KX3 are designed for backpacking, so minimizing current 
drain is an important design objective. You'll appreciate this when 
studying that spec in the manual -- only about 150 mA on RX!  That means 
that you can run the radio a LOT longer on batteries, which reduces the 
weight you have to drag up the trail!


73, Jim K9YC

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Re: [Elecraft] TX Mode issue

[Jim Brown]

On 9/8/2017 2:47 PM, Wes Stewart wrote:
Any ideas? 


Only a WAG, Wes. All of the Elecraft radios write their current setup to 
RAM when you turn off the radio with its own power switch, and the next 
time the radio is turned on, that setup is applied. If, however, you 
remove DC power from the radio, those settings are NOT written, and the 
last settings saved will apply.


Also, if the radio is running and power is interrupted for some reason, 
the radio can go a bit nuts. This happened to me once when I was running 
from the 12V line in my Toyota SUV without the motor running and power 
dropped for a few seconds when I started the motor. In my case, it 
locked up. Taking advice from K6XX, I removed power from the radio, let 
it sit for 20 minutes, and turned it back on. As I recall, that's all I 
had to do, and it fired up.


73, Jim K9YC

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Re: [Elecraft] [K3] USB Interface

[Ed Muns]

"RX" audio, not TX.

73,
Ed W0YK
On Sep 8, 2017 1:40 PM, Ed Muns  wrote:
>
> I think John is asking about LINE OUT of the K3 for TX audio into the PC for 
> MMTTY decode.
>
> 73,
> Ed W0YK
> On Sep 8, 2017 12:50 PM, Don Wilhelm  wrote:
> >
> > John,
> >
> > Look back to posts earlier today regarding WSJT-X.
> >
> > We have been discussing how to set the audio levels for WSJT-X, but the 
> > same thing applies to and all other soundcard digital modes, including 
> > AFSK A - which you should be using with MMTTY.  It defaults to LSB, 
> > turns off compression and TX EQ (so you don't have to disturb your SSB 
> > settings).  See the manual for the features available with AFSK A mode.
> >
> > Set the MIC SEL to LINE.
> >
> > Like all other data modes with the K3 (and other Elecraft gear), set the 
> > audio for 4 bars on the ALC meter with the 5th one flashing.  Adjust the 
> > power with the POWER knob.
> > Ignore the common internet advice (and some software instructions) which 
> > say to "set the power to maximum and use the audio level to control the 
> > power" - that does not work well with Elecraft gear because it is unique 
> > among amateur tranceiver in the way the power is controlled.
> > Some commercial transceivers control power in the same way as Elecraft 
> > gear, but no other amateur transceivers that I am aware of.
> >
> > 73,
> > Don W3FPR
> >
> > On 9/8/2017 3:02 PM, John Reilly wrote:
> > > I have the USB interface card in my K3. I use the audio out (USB 
> > > Microphone) for the MTTY program. Question is how to set the audio 
> > > levels. FWIW, I currently have the K3 Line Out set to 5, and the 
> > > computer USB Mic level set to around mid-scale. Is there a better 
> > > combination for improved dynamic range and low distortion?
> > > Thanks,
> > >    - 73, John, N0TA
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Re: [Elecraft] KX144 questions

[Jim Brown]

On 9/8/2017 12:37 PM, Rus Healy wrote:

Looking to get some real data on the 2-meter module.


There's plenty. All Elecraft manuals and many schematics are 
downloadable as pdf files on their website. I can't think of a better start.


73, Jim K9YC

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Re: [Elecraft] Adjusting Audio Level for Digital Modes

[Don Wilhelm]

Bret,

You likely have the LINE IN level in the K3/K3S set to either the high 
or low end of the range.  Set it first for midrange (about 30), and then 
set the soundcard "speaker" output slider for about 50%, and set the 
WSJT-X slider also to about 50%.  Then see what the ALC meter reads 
during a transmit.
You should be able to do that in TX TEST mode, or working into a dummy 
load so there is no need to put those "testing" signals on the air.


With the K3 LINE IN set to midrange, adjust the computer sliders so you 
get close to the 4 bars with 5th bar flashing.  Then fine tune that with 
the K3 LINE IN to get to the right level.


If you cannot obtain the 5th bar flashing, settle for 4 bars solid with 
the 5th bar not illuminated at all.


Don W3FPR


On 9/8/2017 6:36 PM, MaverickNH wrote:

At present, I have my PC's USB Audio Codec Playback Level set at 35%, and am
adjusting ALC with the MIC knob. With the WSTJ-X Tune ON, I'm slowly
increasing MIC until the 3rd bar shows. Further increase jumps directly to
the 5th bar, with no 4th bar appearing or flashing 5th bar.
I could swear I used to be able to get that flickering 5th bar. Must be I
have something else set incorrectly?

But either way, I must have nudged the MIC button as now things seem OK. Any
way to lock that? As such, when pressing the K3S TUNE button ON, the POWER
knob on the K3S adjusts power smoothly up on the K3S (as seen on the P3TXMON
and K3S display) with KPA500 off. With KPA500 ON, increasing K3S power knob
increases KPA500 display power, with the P3TXMON going up too.

I'll have to add "check ALC/MIC setting to my WSJT-X Cheat Sheet. Thanks for
the help guys.

BRET/N4SRN



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Re: [Elecraft] Adjusting Audio Level for Digital Modes

[MaverickNH]

At present, I have my PC's USB Audio Codec Playback Level set at 35%, and am
adjusting ALC with the MIC knob. With the WSTJ-X Tune ON, I'm slowly
increasing MIC until the 3rd bar shows. Further increase jumps directly to
the 5th bar, with no 4th bar appearing or flashing 5th bar.
I could swear I used to be able to get that flickering 5th bar. Must be I
have something else set incorrectly?

But either way, I must have nudged the MIC button as now things seem OK. Any
way to lock that? As such, when pressing the K3S TUNE button ON, the POWER
knob on the K3S adjusts power smoothly up on the K3S (as seen on the P3TXMON
and K3S display) with KPA500 off. With KPA500 ON, increasing K3S power knob
increases KPA500 display power, with the P3TXMON going up too.

I'll have to add "check ALC/MIC setting to my WSJT-X Cheat Sheet. Thanks for
the help guys.

BRET/N4SRN 



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Re: [Elecraft] [KPA500] K3S/KPA500/KAT500 - Adjusting TX Power

[Joe Subich, W4TV]

> So 5 to 7 bars seem to be indicated.  Where does the '4 solid, fifth
> flashing come from'?

As explained by Wayne and Lyle several years ago, in data modes the
ALC meter scale is shifted so that any display below four bars shows
*audio input level* below the nominal operating point (whatever point
below the ALC clipping level Lyle set to allow headroom) while five
bars or more represents ALC action.

In data modes (DATA A, AFSK A), the DSP algorithm will *increase* the
audio gain (effectively increase the mic/line in level) as needed to
provide sufficient audio drive for the DSP to work correctly (generate
the nominal signal level prior to the ALC/Power setting routine).

73,

   ... Joe, W4TV


On 9/8/2017 5:35 PM, Wes Stewart wrote:
I am often puzzled by some of this advice. The K3S manual on page 30 
says among other things:


"While speaking into the microphone in a
normal voice, adjust MIC for a peak ALC
meter indication of about 5-7 bars (see below)".

Then regarding audio data modes it says on page 34:

"If you’re using an audio-shift transmit mode (LSB,
USB, DATA A, or AFSK A), you’ll need to set
the MIC level while watching the ALC meter.
You can use the same procedure outlined for voice
modes (pg. 30), except that speech compression
should not be used."

So 5 to 7 bars seem to be indicated.  Where does the '4 solid, fifth 
flashing come from'?


This is particularly questionable with constant amplitude modes, where 
it doesn't matter whether there is ALC developed or not.


Maybe someone can enlighten me.

Wes  N7WS


On 9/8/2017 5:36 AM, Don Wilhelm wrote:

Bret,

This is a condition we call "Power Hunting", and it usually indicates 
that you do not have the audio level set correctly for Elecraft 
transceivers.


Are you driving the audio to illuminate 4 bars on the K3S ALC meter 
with the 5th bar flashing?  You must operate Elecraft gear differently 
than other transceivers because of the closed loop system used for 
power control is different than the simplistic "control the drive 
level" system that other transceivers use.


Ignore the internet (and WSJT-X) advice which tells you to adjust the 
power with the audio level and set the power to maximum.


With Elecraft gear, set the audio as instructed in the manual and 
adjust the power with the POWER knob.


73,
Don W3FPR


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Re: [Elecraft] [KPA500] K3S/KPA500/KAT500 - Adjusting TX Power

[Don Wilhelm]

Wes,

That information comes from the DSP designer who has on several 
occassions stated that the onset of ALC is at the 5th bar.

He has indicated that from the time of K3 Firmware Field Test.

Why that information is not in the K3 and K3S manuals is a mystery to 
me.  It is present in the KX3 manual.


73,
Don W3FPR

On 9/8/2017 5:35 PM, Wes Stewart wrote:
I am often puzzled by some of this advice. The K3S manual on page 30 
says among other things:


"While speaking into the microphone in a
normal voice, adjust MIC for a peak ALC
meter indication of about 5-7 bars (see below)".

Then regarding audio data modes it says on page 34:

"If you’re using an audio-shift transmit mode (LSB,
USB, DATA A, or AFSK A), you’ll need to set
the MIC level while watching the ALC meter.
You can use the same procedure outlined for voice
modes (pg. 30), except that speech compression
should not be used."

So 5 to 7 bars seem to be indicated.  Where does the '4 solid, fifth 
flashing come from'?



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Re: [Elecraft] KX2/KX3 built-in speakers

[Christopher Hoover]

>
> The KX2's speaker is just fine. PLENTY loud enough and quite intelligible.


I find the KX2 audio level to be borderline in most field situations.
Inside on a desk, sure; it'll do.   I almost always use headphones in the
field.


On Fri, Sep 8, 2017 at 5:04 AM, Tommy  wrote:

>   John,
>
> The KX2's speaker is just fine. PLENTY loud enough and quite
> intelligible.
>
> 73!
>
> Tom - KB2SMS
>
> KX2 #01927
>
>
>
> On 09/08/2017 07:43 AM, John Gibson wrote:
>
>> Dear KX2 or KX3 owners,
>>
>> If you own a KX2 or KX3, do you find that the built-in speakers produce
>> sound of sufficient loudness and good intelligibility?
>>
>> I do not (yet) own one of these fine radios, so I must ask others for
>> this information.
>>
>> Thank you and 73,
>>
>> John, no8v
>>
>
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[Elecraft] TX Mode issue

[Wes Stewart]

I've had to remove my K3S from the station again for repair. I've resurrected my 
old K3 to fill in. (Always have a spare)


Since the last time this happened, I've ventured into FT8 operating and I noted 
that when I used my USB to Serial converter that always worked fine in the past, 
FT8 was extremely slow to connect and communicate with the K3.  Figuring I might 
have one of the dreaded counterfeit clone adapters I dragged out the Edgeport 
serial to USB adapter.


FT8 now connected like a champ.  However, and I've noted this with MMTTY 
connected as well, there are instances where I go to transmit and find the TX 
test mode is enabled.  Furthermore, the front panel switch will not turn it 
off.  I have to cycle power. Additionally, I don't have to be doing anything, 
it's happened with me out of the shack.


If Mt. Athos comes on and I miss it because of this I'm going to be really 
POed.  Any ideas?


Wes  N7WS
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Re: [Elecraft] [KPA500] K3S/KPA500/KAT500 - Adjusting TX Power

[Wes Stewart]

I am often puzzled by some of this advice. The K3S manual on page 30 says among 
other things:


"While speaking into the microphone in a
normal voice, adjust MIC for a peak ALC
meter indication of about 5-7 bars (see below)".

Then regarding audio data modes it says on page 34:

"If you’re using an audio-shift transmit mode (LSB,
USB, DATA A, or AFSK A), you’ll need to set
the MIC level while watching the ALC meter.
You can use the same procedure outlined for voice
modes (pg. 30), except that speech compression
should not be used."

So 5 to 7 bars seem to be indicated.  Where does the '4 solid, fifth flashing 
come from'?


This is particularly questionable with constant amplitude modes, where it 
doesn't matter whether there is ALC developed or not.


Maybe someone can enlighten me.

Wes  N7WS


On 9/8/2017 5:36 AM, Don Wilhelm wrote:

Bret,

This is a condition we call "Power Hunting", and it usually indicates that you 
do not have the audio level set correctly for Elecraft transceivers.


Are you driving the audio to illuminate 4 bars on the K3S ALC meter with the 
5th bar flashing?  You must operate Elecraft gear differently than other 
transceivers because of the closed loop system used for power control is 
different than the simplistic "control the drive level" system that other 
transceivers use.


Ignore the internet (and WSJT-X) advice which tells you to adjust the power 
with the audio level and set the power to maximum.


With Elecraft gear, set the audio as instructed in the manual and adjust the 
power with the POWER knob.


73,
Don W3FPR


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[Elecraft] (no subject)

[RDStraw]

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Re: [Elecraft] [K3] USB Interface

[Ed Muns]

I think John is asking about LINE OUT of the K3 for TX audio into the PC for 
MMTTY decode.

73,
Ed W0YK
On Sep 8, 2017 12:50 PM, Don Wilhelm  wrote:
>
> John,
>
> Look back to posts earlier today regarding WSJT-X.
>
> We have been discussing how to set the audio levels for WSJT-X, but the 
> same thing applies to and all other soundcard digital modes, including 
> AFSK A - which you should be using with MMTTY.  It defaults to LSB, 
> turns off compression and TX EQ (so you don't have to disturb your SSB 
> settings).  See the manual for the features available with AFSK A mode.
>
> Set the MIC SEL to LINE.
>
> Like all other data modes with the K3 (and other Elecraft gear), set the 
> audio for 4 bars on the ALC meter with the 5th one flashing.  Adjust the 
> power with the POWER knob.
> Ignore the common internet advice (and some software instructions) which 
> say to "set the power to maximum and use the audio level to control the 
> power" - that does not work well with Elecraft gear because it is unique 
> among amateur tranceiver in the way the power is controlled.
> Some commercial transceivers control power in the same way as Elecraft 
> gear, but no other amateur transceivers that I am aware of.
>
> 73,
> Don W3FPR
>
> On 9/8/2017 3:02 PM, John Reilly wrote:
> > I have the USB interface card in my K3. I use the audio out (USB 
> > Microphone) for the MTTY program. Question is how to set the audio 
> > levels. FWIW, I currently have the K3 Line Out set to 5, and the 
> > computer USB Mic level set to around mid-scale. Is there a better 
> > combination for improved dynamic range and low distortion?
> > Thanks,
> >    - 73, John, N0TA
> > __
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Re: [Elecraft] KX2/KX3 built-in speakers

[Chris Tate - N6WM]

When I was operating portable on the beach in Hawaii, I tried using the speaker 
but found that I really had to use headphones, particularly if I ended up doing 
any cw ragchewing...  It was really hard to hold a conversation due to the 
varying noise level of crashing waves and folks having fun..

Just my experience..

Chris
N6WM

From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on 
behalf of n...@zianet.com [n...@zianet.com]
Sent: Friday, September 08, 2017 10:47 AM
To: John Gibson
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2/KX3 built-in speakers

John Gibson writes:

> Dear KX2 or KX3 owners,
>
> If you own a KX2 or KX3, do you find that the built-in speakers produce
> sound of sufficient loudness and good intelligibility?
>
> I do not (yet) own one of these fine radios, so I must ask others for this 
> information.

I have had no problems using the internal speaker on my KX2 operating in
the field.  Plenty of volume and clarity, even operating in some fairly
brisk winds.  My experience is strictly CW, but imagine SSB would be the
same.  With the internal battery pack, it is a totally self-contained rig
(except antenna) in a single box you hold in your hand.  You'll like it.

72, Paul NA5N
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Re: [Elecraft] [K3] USB Interface

[Don Wilhelm]

John,

Look back to posts earlier today regarding WSJT-X.

We have been discussing how to set the audio levels for WSJT-X, but the 
same thing applies to and all other soundcard digital modes, including 
AFSK A - which you should be using with MMTTY.  It defaults to LSB, 
turns off compression and TX EQ (so you don't have to disturb your SSB 
settings).  See the manual for the features available with AFSK A mode.


Set the MIC SEL to LINE.

Like all other data modes with the K3 (and other Elecraft gear), set the 
audio for 4 bars on the ALC meter with the 5th one flashing.  Adjust the 
power with the POWER knob.
Ignore the common internet advice (and some software instructions) which 
say to "set the power to maximum and use the audio level to control the 
power" - that does not work well with Elecraft gear because it is unique 
among amateur tranceiver in the way the power is controlled.
Some commercial transceivers control power in the same way as Elecraft 
gear, but no other amateur transceivers that I am aware of.


73,
Don W3FPR

On 9/8/2017 3:02 PM, John Reilly wrote:
I have the USB interface card in my K3. I use the audio out (USB 
Microphone) for the MTTY program. Question is how to set the audio 
levels. FWIW, I currently have the K3 Line Out set to 5, and the 
computer USB Mic level set to around mid-scale. Is there a better 
combination for improved dynamic range and low distortion?

Thanks,
   - 73, John, N0TA
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[Elecraft] KX144 questions

[Rus Healy]

Greetings. I recently acquired two K3s, and this is my first post to this
list. One of the K3s has the 2-meter module in it but I haven't had it on
the bench to test it. Looking to get some real data on the 2-meter module.

Background: I'm mainly an HF contester, but I've also been known to operate
on the higher bands. In the upcoming second weekend of the ARRL
10-GHz-and-Up Contest, I'll be operating on a few hilltops in ENY and New
England and I'd like to use the K3 with the KX144 as the IF radio for my
10-GHz transverter. So today I have two topics:

1) How far down can I dial the K3 RF output on 144 MHz? On a related note,
does the RF output spike toward full output (6-7 W) on key-down when the RF
output is dialed way down?

2) Can I disable the PA in the 2-meter module through a menu setting or
some other way that doesn't involve modifying the radio?

Looking to get down to the 20-mW level for IF drive. The transverter has a
single IF connection with PIN diode T/R switching. If needed, I could
separate the transmit IF input and the receive IF output, but it would be
better if I can keep the current configuration.

Thanks in advance.

--73, Rus, K2UA
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Re: [Elecraft] Adjusting Audio Level for Digital Modes

[Don Wilhelm]

Bob and all,

Lyle Johnson (the DSP designer) has stated several times that actual ALC 
begins at the 5th bar on the "ALC" meter.  That is the point of "Zero 
ALC" for the K3/K3S/KX3/KX2.


The K2 is different in its indication in that the ALC begins at the 1st 
bar illuminated.  The data mode setup for the K2 is the same - set the 
audio level correctly and control the power with the power knob.
So for the K2, you advance the audio until you begin the see the 1st ALC 
bar illuminated and then back off until it goes out.


73,
Don W3FPR


On 9/8/2017 2:41 PM, Bob McGraw K4TAX wrote:
Don is absolutely correct on his earlier points.   The K3S setup and 
operation does not follow the suggestions for setting the audio levels 
as other radios and as described in the WSJT-X user information.



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Re: [Elecraft] [K2] Q7/Q8 base voltage

[Don Wilhelm]

Jukka,

Measure the values of R59 (4.7k), R60 (100 ohms), R61 (120 ohms), and 
R62 (2.7k).
If this is a K2 with a serial number below 3000, R60 will be a 100 ohm 
potentiometer - set it to full counterclockwise rotation or replace it 
with a fixed 100 ohm resistor.


Even though 0.65 volts is slightly higher than I like to see it, that 
voltage will be OK.


73,
Don W3FPR

On 9/8/2017 11:31 AM, Jukka Tarvainen wrote:

Hello!

While raining and after solar flares it is time to look into my friend's K2
(#3169). It had other PA transistor blown. I am in process of replacing all
K2PAKIT components. After changing Q11 and Q13 I am checking Q7/Q8 B
voltage. On RX it is 0 volts, but on TX seems to be 0.65 V with my
multimeter (Meterman 37XR). How to lower it to recommended 0.62-0.63 volts?
Or should I check with other meter?


73 de Jukka OH4MFA, OG4T
K2/100 #4293, K2 #5267
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[Elecraft] [K3] USB Interface

[John Reilly]

I have the USB interface card in my K3. I use the audio out (USB 
Microphone) for the MTTY program. Question is how to set the audio 
levels. FWIW, I currently have the K3 Line Out set to 5, and the 
computer USB Mic level set to around mid-scale. Is there a better 
combination for improved dynamic range and low distortion?

Thanks,
  - 73, John, N0TA
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[Elecraft] KAT500 and a FTdx1200

[Mike Flowers]

Hi Gang,

 

I'm helping a relatively new Amateur who just ordered a KAT500 for use with
her Yaesu FTdx1200.

 

I've read the Elecraft paper: 'Yaesu FTdx1200 with KPA/KAT500 Power Combo'
which describes the setup for the KAT500 Basic Mode with the FTdx1200.

 

I'm wondering if there is a way to establish a more robust interface between
the FTdx1200 and the KAT500.  

 

The FTdx1200 presents BAND DATA A, B, C & D at the rear panel LINEAR 10 pin
output jack.   I'm wondering if anyone has used this data to interface with
the KAT500.

 

Thanks in advance for your assistance!

 

- 73 and good DX de Mike,   K6MKF, Past
President -   NCDXC 

 

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Re: [Elecraft] KX2/KX3 built-in speakers

[Tox]

(If you receive a dupe, my apologies)

With my KX3, for phone, I'd wear earbuds just to help me screen out
background noise, although volume/quality is decent given size. For cw,
tone generator is not as loud as I'd like for me to hear what I'm sending
(I've got to be careful how I set up when doing cw ops sessions so the
class can hear my tone); cranking up the af gain doesn't seem to bring up
the *local* tone volume as much as I'd like - it is entirely possible this
is pilot error though, so if anyone knows the magic, please feel free to
send it to me off-list.

Tox
AD6YT

On Fri, Sep 8, 2017 at 4:43 AM, John Gibson  wrote:

> Dear KX2 or KX3 owners,
>
> If you own a KX2 or KX3, do you find that the built-in speakers produce
> sound of sufficient loudness and good intelligibility?
>
> I do not (yet) own one of these fine radios, so I must ask others for this
> information.
>
> Thank you and 73,
>
> John, no8v
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>



-- 
Scott Small
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[Elecraft] Adjusting Audio Level for Digital Modes

[Bob McGraw K4TAX]

Don is absolutely correct on his earlier points.   The K3S setup and 
operation does not follow the suggestions for setting the audio levels 
as other radios and as described in the WSJT-X user information.


In DATA mode, it is my view that A L C stands for AUDIO  LEVEL CREST.  
i.e. the highest point, level or degree.     It does not, in my terms, 
stand for Automatic Level Control as understood by many and as used on 
many other radio brands.   Although, in SSB mode, the the normal 
convention of understanding with ALC does apply.


With regard to WSJT-X, there is provision, in the AUDIO tab to have the 
levels remembered by band  for Transmit and Tune.   I find with these 
boxes checked things work quite well.  Just remember that the transmit 
data level can or will be different than the tune level.  Thus some 
minor adjustment of the PWR slider in the software may be needed between 
TUNE and TRANSMIT.  Once done, all other things remaining static, the 
power from band to band and day to day remain precise as one desires.


In my measurements, in DATA A mode with a single tone applied, I find 
that any audio level where the A L C indication  {AUDIO LEVEL CREST}  is 
less than 4 bars will allow the power control circuit in the radio to 
"hunt".  The result will be observed as a slow power increase.


I'm stubborn, hard-headed and have used many other brands and models of 
radios in the past.  As I've said before, I had to learn to use the K3S 
as it is intended, thus it is not like other radios in this respect.  
Once done, you'll be much more satisfied with its outstanding performance.


73

Bob, K4TAX

K3S s/n 10163


On 9/8/2017 7:36 AM, Don Wilhelm wrote:

Bret,

This is a condition we call "Power Hunting", and it usually indicates 
that you do not have the audio level set correctly for Elecraft 
transceivers.


Are you driving the audio to illuminate 4 bars on the K3S ALC meter 
with the 5th bar flashing?  You must operate Elecraft gear differently 
than other transceivers because of the closed loop system used for 
power control is different than the simplistic "control the drive 
level" system that other transceivers use.


Ignore the internet (and WSJT-X) advice which tells you to adjust the 
power with the audio level and set the power to maximum.


With Elecraft gear, set the audio as instructed in the manual and 
adjust the power with the POWER knob.


73,
Don W3FPR




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[Elecraft] K3/0 Mini question

[Jerry]

Good afternoon,

 

I lost the audio on my K3/0 Mini last night. The unit functions as it should
in making changes to the remote K3 (actually located about 10 feet away). I
can see on the RemoteHams software the auto being received from the remote
and If I use a separate set of headphones using a different audio driver
(not the USB Codec) I can hear the audio coming from the RemoteHams server.
Any one have any ideas on how to fix this problem. Is there a master reset
for the K3/0 Mini unit? 

 

Best regards,

 

Jerry, W1IE

 

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Re: [Elecraft] KX2/KX3 built-in speakers

[na5n]

John Gibson writes:


Dear KX2 or KX3 owners,

If you own a KX2 or KX3, do you find that the built-in speakers produce  
sound of sufficient loudness and good intelligibility?


I do not (yet) own one of these fine radios, so I must ask others for this 
information.


I have had no problems using the internal speaker on my KX2 operating in  
the field.  Plenty of volume and clarity, even operating in some fairly  
brisk winds.  My experience is strictly CW, but imagine SSB would be the  
same.  With the internal battery pack, it is a totally self-contained rig  
(except antenna) in a single box you hold in your hand.  You'll like it.


72, Paul NA5N
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[Elecraft] [K2] Q7/Q8 base voltage

[Jukka Tarvainen]

Hello!

While raining and after solar flares it is time to look into my friend's K2
(#3169). It had other PA transistor blown. I am in process of replacing all
K2PAKIT components. After changing Q11 and Q13 I am checking Q7/Q8 B
voltage. On RX it is 0 volts, but on TX seems to be 0.65 V with my
multimeter (Meterman 37XR). How to lower it to recommended 0.62-0.63 volts?
Or should I check with other meter?


73 de Jukka OH4MFA, OG4T
K2/100 #4293, K2 #5267
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Re: [Elecraft] KX2/KX3 built-in speakers

[Brian Hunt]

In a quiet setting either indoors or outdoors I find the KX2 internal speaker 
adequate. If there is much background noise or careful listening is needed 
(crowded bands and/or weak signals) then I will go to Apple earbuds. If you use 
external speaker(s), powered speakers are needed because the KX2 speaker amp is 
bypassed when the headphone jack is used. I have a pair of Sony battery powered 
speakers that work perfectly. 

73,
Brian, K0DTJ

> On Sep 8, 2017, at 06:01, Michael Walker  wrote:
> 
> Amazingly well for the size.  If you need more, I would add headphones or
> external speakers.
> 
> 
> 
> On Fri, Sep 8, 2017 at 8:53 AM, Kevin der Kinderen 
> wrote:
> 
>> Hard to answer as I don't know your situation or operating conditions. I
>> have the KX3. It is sufficiently loud and ok intelligibility if I'm in a
>> quiet place with no distractions. Add some earphones and it sounds
>> wonderful. Good pseudo-stereo effect.
>> 
>> 73,
>> Kev K4VD
>> 
>>> On Fri, Sep 8, 2017 at 7:43 AM, John Gibson  wrote:
>>> 
>>> Dear KX2 or KX3 owners,
>>> 
>>> If you own a KX2 or KX3, do you find that the built-in speakers produce
>>> sound of sufficient loudness and good intelligibility?
>>> 
>>> I do not (yet) own one of these fine radios, so I must ask others for
>> this
>>> information.
>>> 
>>> Thank you and 73,
>>> 
>>> John, no8v
>>> __
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Re: [Elecraft] Elecraft] OT - SFI going crazy - 127 - 10 should be open

[Fred C. Jensen]

SFI has been as high as 140 since the big flare, close to its max at the cycle 
24 peak.

Skip K6DGW

Gary Smith  wrote:
>I worked VK4CC on 10M with FT8 mode at 
>00:04 from Connecticut, earlier this 
>evening. Definitely open.
>
>73,
>
>Gary
>KA1J
>
>> 10M was open to VK-ZL-SoPac about 0240Z and shut down an hour later. 
>> 
>> -- Mike Flowers, K6MKF, NCDXC - "It's about DX!"
>> 
>> > On Sep 7, 2017, at 8:48 PM, Jim Miller 
>> > wrote:
>> > 
>> > Take a look at the SFI at 127.  It has been going up a bit and
>> > bounced to 103 a couple of days ago but is at 127 now so 10 meters
>> > should be open and 6 meters might even work.
>> > 
>> > 
>> > 
>> > 73, Jim KG0KP
>> > 
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Re: [Elecraft] KX2/KX3 built-in speakers

[Walter Underwood]

The KX3 is OK. I have heard that the KX2 is better.

With my KX3, I use a $9 external audio amp to drive inexpensive stereo 
speakers. I wrote up the details on my blog.

https://observer.wunderwood.org/2017/03/04/speakers-for-my-elecraft-kx3/ 


wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Sep 8, 2017, at 6:01 AM, Michael Walker  wrote:
> 
> Amazingly well for the size.  If you need more, I would add headphones or
> external speakers.
> 
> 
> 
> On Fri, Sep 8, 2017 at 8:53 AM, Kevin der Kinderen 
> wrote:
> 
>> Hard to answer as I don't know your situation or operating conditions. I
>> have the KX3. It is sufficiently loud and ok intelligibility if I'm in a
>> quiet place with no distractions. Add some earphones and it sounds
>> wonderful. Good pseudo-stereo effect.
>> 
>> 73,
>> Kev K4VD
>> 
>> On Fri, Sep 8, 2017 at 7:43 AM, John Gibson  wrote:
>> 
>>> Dear KX2 or KX3 owners,
>>> 
>>> If you own a KX2 or KX3, do you find that the built-in speakers produce
>>> sound of sufficient loudness and good intelligibility?
>>> 
>>> I do not (yet) own one of these fine radios, so I must ask others for
>> this
>>> information.
>>> 
>>> Thank you and 73,
>>> 
>>> John, no8v
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[Elecraft] timewave pk232sc

[steve jobes via Elecraft]

does anyone have experience using the 232sc with the k3? I would like to use 
one and not sure about the cabling. I used use one with my Orion but that had 
the din connector and the k3 doesn't. Any info appreciated.
73, tnx,
Steve W1DXH
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Re: [Elecraft] OT: Whole House Generator

[Charlie T, K3ICH]

I'd have a fully automatic generator in a second IF we had propane or natural 
gas available.
However, the addition of suitable tanks and piping, which MUST be installed 
"professionally", would be well over the cost of the generator itself.

All of you with non-invertor conventional 3600 RPM generators should take a 
look at the actual waveform coming out of them.
My older Honda ES-6500 would run anything I connected to it, but my computer 
UPS did NOT like it.  The waveform was basically 60 Hz but there was noticeable 
distortion and glitches.

The inverters are certainly more complicated with potentially more things to 
fail, BUT the waveform out of My Honda EU-7000 is audio signal generator clean.

73, Charlie k3ICH






On 9/8/2017 8:46 AM, Chip Stratton wrote:
> I have a Kohler 8 kw unit on a whole house automatic transfer switch 
> that runs on propane, No A/C so 8 kW supplies the whole house just 
> fine. I've measured its output at 4% THD using a Fluke power quality 
> meter with or without load. Seems to fit the ticket.
>
> Chip
> AE5KA
>


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Re: [Elecraft] OT: Whole House Generator

[N4ZR]

FWIW, I have a 16 KW Generac propane generator.  It uses load-shedding 
modules with an automatic transfer switch, so that if my load exceeds 
capacity the 240-VAC loads will be shed one at a time.  I figure the 
chances of my simultaneously running the dryer, the oven, the AC and my 
amplifier are pretty low.  Haven't noticed any problems with the 
waveform, but haven't really looked.


73, Pete N4ZR
Check out the Reverse Beacon Network
at , now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 9/8/2017 8:46 AM, Chip Stratton wrote:

I have a Kohler 8 kw unit on a whole house automatic transfer switch that
runs on propane, No A/C so 8 kW supplies the whole house just fine. I've
measured its output at 4% THD using a Fluke power quality meter with or
without load. Seems to fit the ticket.

Chip
AE5KA

On Thu, Sep 7, 2017 at 5:52 PM, Jim Brown  wrote:


On 9/7/2017 1:15 PM, Doug Hensley wrote:


I am going through the process of choosing a whole house home generator


It's worth thinking about your needs first. Key questions are"

1) What loads do I need to run from it? Get hard numbers, including
starting current for motors (refrigerators, well pumps, etc.) The 120V
loads can easily be measured with a Kill-A-Watt meter. You'll need a
clamp-on current probe for your VOM or scope to measure permanently wired
loads and 240V loads.

2) How often are power outages?  How long do they last?

3) Do I really need to run A/C from a generator?  Obviously depends on
climate, but also demands a bigger generator and a lot more fuel.

I have two generators. One is a Honda 2000i, which I can easily carry, and
use for portable hamming. The second is a 6.5kVA Honda (EU6500?) that can
be set for either 120VAC or 120/240 with a neutral. I use it in the
120/240V mode. It's big enough to run my well motors.

I've rewired the breaker panel in my home to put all my "critical" loads
on one side of 120V -- lights, computers, TV, refrigerator -- and have
found that the little 2000i can run it all in econ-mode. That gives us the
option of using the smaller generator until we need to re-build the water
pressure during a long outage.

73, Jim K9YC


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Re: [Elecraft] KX2/KX3 built-in speakers

[Michael Walker]

Amazingly well for the size.  If you need more, I would add headphones or
external speakers.



On Fri, Sep 8, 2017 at 8:53 AM, Kevin der Kinderen 
wrote:

> Hard to answer as I don't know your situation or operating conditions. I
> have the KX3. It is sufficiently loud and ok intelligibility if I'm in a
> quiet place with no distractions. Add some earphones and it sounds
> wonderful. Good pseudo-stereo effect.
>
> 73,
> Kev K4VD
>
> On Fri, Sep 8, 2017 at 7:43 AM, John Gibson  wrote:
>
> > Dear KX2 or KX3 owners,
> >
> > If you own a KX2 or KX3, do you find that the built-in speakers produce
> > sound of sufficient loudness and good intelligibility?
> >
> > I do not (yet) own one of these fine radios, so I must ask others for
> this
> > information.
> >
> > Thank you and 73,
> >
> > John, no8v
> > __
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> >
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> >
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Re: [Elecraft] KX2/KX3 built-in speakers

[Kevin der Kinderen]

Hard to answer as I don't know your situation or operating conditions. I
have the KX3. It is sufficiently loud and ok intelligibility if I'm in a
quiet place with no distractions. Add some earphones and it sounds
wonderful. Good pseudo-stereo effect.

73,
Kev K4VD

On Fri, Sep 8, 2017 at 7:43 AM, John Gibson  wrote:

> Dear KX2 or KX3 owners,
>
> If you own a KX2 or KX3, do you find that the built-in speakers produce
> sound of sufficient loudness and good intelligibility?
>
> I do not (yet) own one of these fine radios, so I must ask others for this
> information.
>
> Thank you and 73,
>
> John, no8v
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Re: [Elecraft] OT: Whole House Generator

[Chip Stratton]

I have a Kohler 8 kw unit on a whole house automatic transfer switch that
runs on propane, No A/C so 8 kW supplies the whole house just fine. I've
measured its output at 4% THD using a Fluke power quality meter with or
without load. Seems to fit the ticket.

Chip
AE5KA

On Thu, Sep 7, 2017 at 5:52 PM, Jim Brown  wrote:

> On 9/7/2017 1:15 PM, Doug Hensley wrote:
>
>> I am going through the process of choosing a whole house home generator
>>
>
> It's worth thinking about your needs first. Key questions are"
>
> 1) What loads do I need to run from it? Get hard numbers, including
> starting current for motors (refrigerators, well pumps, etc.) The 120V
> loads can easily be measured with a Kill-A-Watt meter. You'll need a
> clamp-on current probe for your VOM or scope to measure permanently wired
> loads and 240V loads.
>
> 2) How often are power outages?  How long do they last?
>
> 3) Do I really need to run A/C from a generator?  Obviously depends on
> climate, but also demands a bigger generator and a lot more fuel.
>
> I have two generators. One is a Honda 2000i, which I can easily carry, and
> use for portable hamming. The second is a 6.5kVA Honda (EU6500?) that can
> be set for either 120VAC or 120/240 with a neutral. I use it in the
> 120/240V mode. It's big enough to run my well motors.
>
> I've rewired the breaker panel in my home to put all my "critical" loads
> on one side of 120V -- lights, computers, TV, refrigerator -- and have
> found that the little 2000i can run it all in econ-mode. That gives us the
> option of using the smaller generator until we need to re-build the water
> pressure during a long outage.
>
> 73, Jim K9YC
>
>
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Re: [Elecraft] [KPA500] K3S/KPA500/KAT500 - Adjusting TX Power

[Don Wilhelm]

Bret,

This is a condition we call "Power Hunting", and it usually indicates 
that you do not have the audio level set correctly for Elecraft 
transceivers.


Are you driving the audio to illuminate 4 bars on the K3S ALC meter with 
the 5th bar flashing?  You must operate Elecraft gear differently than 
other transceivers because of the closed loop system used for power 
control is different than the simplistic "control the drive level" 
system that other transceivers use.


Ignore the internet (and WSJT-X) advice which tells you to adjust the 
power with the audio level and set the power to maximum.


With Elecraft gear, set the audio as instructed in the manual and adjust 
the power with the POWER knob.


73,
Don W3FPR


On 9/8/2017 7:46 AM, MaverickNH wrote:

Adjusting power still has me stymied. Oddly, once set and TXing WSJT-X FT8
15sec cycles, it creeps up from 180-200W on the KPA500 readout towards 270W.
The P3TXMON reads lower but creeps up over 200W on successive TX cycles as
well.


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Re: [Elecraft] KX2/KX3 built-in speakers

[Tommy]

  John,

The KX2's speaker is just fine. PLENTY loud enough and quite 
intelligible.


73!

Tom - KB2SMS

KX2 #01927


On 09/08/2017 07:43 AM, John Gibson wrote:

Dear KX2 or KX3 owners,

If you own a KX2 or KX3, do you find that the built-in speakers produce sound 
of sufficient loudness and good intelligibility?

I do not (yet) own one of these fine radios, so I must ask others for this 
information.

Thank you and 73,

John, no8v


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Re: [Elecraft] [KPA500] K3S/KPA500/KAT500 - Adjusting TX Power

[MaverickNH]

Adjusting power still has me stymied. Oddly, once set and TXing WSJT-X FT8
15sec cycles, it creeps up from 180-200W on the KPA500 readout towards 270W.
The P3TXMON reads lower but creeps up over 200W on successive TX cycles as
well.

I moved my components around as suggested so the TX feed is now K3S to
KPA500 to KAT500 (on BYPASS if SWR is already low from remote ATU at antenna
base) to Common Mode Choke to P3TXMON to Bias-T (for rATU DC over coax) and
out of the house. From there it goes through a Lightning Protector GDT,
another toroid choke, a long stretch of buried RG213 to base of 43ft
Vertical Antenna, through another GDT and choke, to SG-235 rATU and finally
to antenna mast.

Bret/N4SRN



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[Elecraft] KX2/KX3 built-in speakers

[John Gibson]

Dear KX2 or KX3 owners,

If you own a KX2 or KX3, do you find that the built-in speakers produce sound 
of sufficient loudness and good intelligibility?

I do not (yet) own one of these fine radios, so I must ask others for this 
information.

Thank you and 73,

John, no8v
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