Elecraft

K3 PSK no output

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K5HM

K3 PSK no output

Using Tigertronics sound card. Followed the set up instructions for PSK in
the Fred Cady, KE7X book. Installed the K3 jumper block from DX Engineering,
and the K3 interface cable. Using Digipan, I try to call CQ. Rig goes into
transmit mode, the macro runs but no power out. Adjusting the TX pot on the
Signalink does not make a difference. I can receive Ok. But either the
soundcard is not outputting anything or I missed a step in the setup.
Config.Lineout is 10 as recommended VOX/No VOX does not seem to matter. Rig
is in Data A mode. I must be missing a step in set up.

Suggestions welcome.

73,
Ron, K5HM
[hidden email]
www.qrz.com/db/k5hm

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Don Wilhelm-4

Re: K3 PSK no output

Ron,

Try in TX TEST mode - everything goes into transmit except there is no
RF output.
Adjust the audio level (both SignaLink and the "mic' gain on the K3) to
obtain 4 bars solid on the ALC meter with the 5th bar flickering.
If you are not able to obtain that level, check the SignaLink
documentation to determine how to plug it for Line level audio output -
I believe it is a jumper, but the default position is for low level
output (mic level).

Once you are able to obtain the proper deflection on the ALC meter, get
out of TX Test and try it. You should have RF output.

73,
Don W3FPR

On 3/4/2013 4:42 PM, K5HM wrote:

> Using Tigertronics sound card. Followed the set up instructions for PSK in
> the Fred Cady, KE7X book. Installed the K3 jumper block from DX Engineering,
> and the K3 interface cable. Using Digipan, I try to call CQ. Rig goes into
> transmit mode, the macro runs but no power out. Adjusting the TX pot on the
> Signalink does not make a difference. I can receive Ok. But either the
> soundcard is not outputting anything or I missed a step in the setup.
> Config.Lineout is 10 as recommended VOX/No VOX does not seem to matter. Rig
> is in Data A mode. I must be missing a step in set up.
>
> Suggestions welcome.
>
> 73,
> Ron, K5HM
> [hidden email]
> www.qrz.com/db/k5hm
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Jay Kobelin

Re: K3 PSK no output

Don

As a K3 newbie here, would the mic impedance (H or L) be a possible issue? I
could not get any ALC movement until I went to H impedance for the Heil
headset I have. I was then able to get all the ALC needed with the mic gain.

Jay

...just a thought
----- Original Message -----
From: "Don Wilhelm" <[hidden email]>
To: "K5HM" <[hidden email]>
Cc: <[hidden email]>
Sent: Monday, March 04, 2013 2:01 PM
Subject: Re: [Elecraft] K3 PSK no output

> Ron,
>
> Try in TX TEST mode - everything goes into transmit except there is no RF
> output.
> Adjust the audio level (both SignaLink and the "mic' gain on the K3) to
> obtain 4 bars solid on the ALC meter with the 5th bar flickering.
> If you are not able to obtain that level, check the SignaLink
> documentation to determine how to plug it for Line level audio output - I
> believe it is a jumper, but the default position is for low level output
> (mic level).
>
> Once you are able to obtain the proper deflection on the ALC meter, get
> out of TX Test and try it. You should have RF output.
>
> 73,
> Don W3FPR
>
> On 3/4/2013 4:42 PM, K5HM wrote:
>> Using Tigertronics sound card. Followed the set up instructions for PSK
>> in
>> the Fred Cady, KE7X book. Installed the K3 jumper block from DX
>> Engineering,
>> and the K3 interface cable. Using Digipan, I try to call CQ. Rig goes
>> into
>> transmit mode, the macro runs but no power out. Adjusting the TX pot on
>> the
>> Signalink does not make a difference. I can receive Ok. But either the
>> soundcard is not outputting anything or I missed a step in the setup.
>> Config.Lineout is 10 as recommended VOX/No VOX does not seem to matter.
>> Rig
>> is in Data A mode. I must be missing a step in set up.
>>
>> Suggestions welcome.
>>
>> 73,
>> Ron, K5HM
>> [hidden email]
>> www.qrz.com/db/k5hm
>>
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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K5HM

Re: K3 PSK no output

In reply to this post by Don Wilhelm-4

Don,

Ok, that worked, Tried a couple of Q's and all ok but notice that with 5
bars on ALC I get 100 watts out. If I Adjust the TX pot on the Signalink to
reduce power, The ALC drops off.

On ICOM gear I'm used to controlling power out with theTX pot on the
Signalink. Is it different for K3?

73,
Ron, K5HM
[hidden email]
www.qrz.com/db/k5hm

-----Original Message-----
From: Don Wilhelm [mailto:[hidden email]]
Sent: Monday, March 04, 2013 4:02 PM
To: K5HM
Cc: [hidden email]
Subject: Re: [Elecraft] K3 PSK no output

Ron,

Try in TX TEST mode - everything goes into transmit except there is no
RF output.
Adjust the audio level (both SignaLink and the "mic' gain on the K3) to
obtain 4 bars solid on the ALC meter with the 5th bar flickering.
If you are not able to obtain that level, check the SignaLink
documentation to determine how to plug it for Line level audio output -
I believe it is a jumper, but the default position is for low level
output (mic level).

Once you are able to obtain the proper deflection on the ALC meter, get
out of TX Test and try it. You should have RF output.

73,
Don W3FPR

On 3/4/2013 4:42 PM, K5HM wrote:
> Using Tigertronics sound card. Followed the set up instructions for PSK in
> the Fred Cady, KE7X book. Installed the K3 jumper block from DX
Engineering,
> and the K3 interface cable. Using Digipan, I try to call CQ. Rig goes into
> transmit mode, the macro runs but no power out. Adjusting the TX pot on
the
> Signalink does not make a difference. I can receive Ok. But either the
> soundcard is not outputting anything or I missed a step in the setup.
> Config.Lineout is 10 as recommended VOX/No VOX does not seem to matter.
Rig

> is in Data A mode. I must be missing a step in set up.
>
> Suggestions welcome.
>
> 73,
> Ron, K5HM
> [hidden email]
> www.qrz.com/db/k5hm
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

MontyS

Re: K3 PSK no output

In reply to this post by Jay Kobelin

Be sure you are in DATA mode, not SSB mode. You will get no output in SSB
mode.
Monty K2DLJ

Don

As a K3 newbie here, would the mic impedance (H or L) be a possible issue? I
could not get any ALC movement until I went to H impedance for the Heil
headset I have. I was then able to get all the ALC needed with the mic gain.

Jay

...just a thought
----- Original Message -----
From: "Don Wilhelm" <[hidden email]>
To: "K5HM" <[hidden email]>
Cc: <[hidden email]>
Sent: Monday, March 04, 2013 2:01 PM
Subject: Re: [Elecraft] K3 PSK no output

K5HM

Re: K3 PSK no output

In reply to this post by Jay Kobelin

Jay,

I had to dial up the Mic gain to about 45 to get 5 bars od ALC but it is
working now.

73,
Ron, K5HM
[hidden email]
www.qrz.com/db/k5hm

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Jay
Sent: Monday, March 04, 2013 4:12 PM
To: [hidden email]
Subject: Re: [Elecraft] K3 PSK no output

Don

As a K3 newbie here, would the mic impedance (H or L) be a possible issue? I

could not get any ALC movement until I went to H impedance for the Heil
headset I have. I was then able to get all the ALC needed with the mic gain.

Jay

...just a thought
----- Original Message -----
From: "Don Wilhelm" <[hidden email]>
To: "K5HM" <[hidden email]>
Cc: <[hidden email]>
Sent: Monday, March 04, 2013 2:01 PM
Subject: Re: [Elecraft] K3 PSK no output

>> Rig
>> is in Data A mode. I must be missing a step in set up.
>>
>> Suggestions welcome.
>>
>> 73,
>> Ron, K5HM
>> [hidden email]
>> www.qrz.com/db/k5hm
>>
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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Don Wilhelm-4

Re: K3 PSK no output

In reply to this post by K5HM

Ron,

I suspect you set the powe5r to maximum and are attempting to control
the RF output with the audio level. That is typical advice given on the
internet and other data mode instructions. That advice is not for the
K3 - it will not work right.

With the K3, ignore that common advice for other transceivers which tell
you to set the transceiver to full drive and adjust the RF level by
changing the audio level.

The way the K3 controls power is different than most rigs - it measures
the actual power output and then adjusts the RF drive to produce the
power requested by the power knob.

So with the K3, adjust the audio for 4 ALC bars with the 5th bar
flickering, and use the power knob to set your desired power output.

Failure to do it that way will result in "power hunting" by the K3 and
you will not have consistent power output.

73,
Don W3FPR

On 3/4/2013 5:38 PM, K5HM wrote:

> Don,
>
> Ok, that worked, Tried a couple of Q's and all ok but notice that with 5
> bars on ALC I get 100 watts out. If I Adjust the TX pot on the Signalink to
> reduce power, The ALC drops off.
>
> On ICOM gear I'm used to controlling power out with theTX pot on the
> Signalink. Is it different for K3?
>
>

Don Wilhelm-4

Re: K3 PSK no output

In reply to this post by Jay Kobelin

Jay,

The K3 "H" or "L" in the mic select do *not* refer to microphone
impedance, but to the range of the K3 microphone gain. The Heil HC4 and
HC5 elements (and other low level output microphones) will need the "H"
setting. Most other microphones can use the "L" setting.

If your microphone has an H and L switch, that *does* refer to the mic
impedance, and it should be set to "L" for use with modern transceivers
which use a low impedance microphone.

You said "headset" which tells me you are referring to SSB rather than
the Data mode setting question of the original post. For SSB use,
adjust the Mic Gain control to give you 5 to 7 bars on the ALC meter.

The K3 "ALC" meter is a combination of a 'VU' meter and an ALC meter.
The onset of ALC is indicated by the 5th bar. Those bars below the 5th
are an aid in setting the correct audio level (especially useful for
Data Modes).

This is all in the manual - refer to the mode you are using - Data or
SSB and set up like the manual indicates.

73,
Don W3FPR

On 3/4/2013 5:11 PM, Jay wrote:
> Don
>
> As a K3 newbie here, would the mic impedance (H or L) be a possible
> issue? I could not get any ALC movement until I went to H impedance
> for the Heil headset I have. I was then able to get all the ALC needed
> with the mic gain.
>

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WM3M

Re: K3 PSK no output

In reply to this post by MontyS

K3 does not have to be in Data mode to work with the Signalink.
I use it all the time in SSB (USB) for data modes, especially for PSK31.
Most data mode software has built in filtering/DSP so the wider bandwidth on
receive works very well, for PSK31, and other data modes.

-----Original Message-----
From: MontyS
Sent: Monday, March 04, 2013 5:43 PM
To: Jay
Cc: [hidden email]
Subject: Re: [Elecraft] K3 PSK no output

Be sure you are in DATA mode, not SSB mode. You will get no output in SSB
mode.
Monty K2DLJ

Don

As a K3 newbie here, would the mic impedance (H or L) be a possible issue? I
could not get any ALC movement until I went to H impedance for the Heil
headset I have. I was then able to get all the ALC needed with the mic gain.

Jay

...just a thought
----- Original Message -----
From: "Don Wilhelm" <[hidden email]>
To: "K5HM" <[hidden email]>
Cc: <[hidden email]>
Sent: Monday, March 04, 2013 2:01 PM
Subject: Re: [Elecraft] K3 PSK no output

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html

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Jay Kobelin

Re: K3 PSK no output

In reply to this post by Don Wilhelm-4

Don

Thanks for the info...I have set the ALC per the KE7X manual. OK on the
clarification...this radio is something I am not used to (starting out with
a DX40 and a BC342) but worked my way up to the TS950 when it first came
out.

And the TS950 still chugging along after all these years and a trip to
Clipperton in 1992. I think the salt air on the island did take its toll on
the motors in the antenna tuning unit. I never use it but they scream like
crazy if I do push the button by accident :)

There are a lot of things to be set and Appendix C in the KE7X manual is
something I have to go thru to get all 6 radios ready.

Thanks for the info
Jay
----- Original Message -----
From: "Don Wilhelm" <[hidden email]>
To: "Jay" <[hidden email]>
Cc: <[hidden email]>
Sent: Monday, March 04, 2013 3:41 PM
Subject: Re: [Elecraft] K3 PSK no output

> Jay,
>
> The K3 "H" or "L" in the mic select do *not* refer to microphone
> impedance, but to the range of the K3 microphone gain. The Heil HC4 and
> HC5 elements (and other low level output microphones) will need the "H"
> setting. Most other microphones can use the "L" setting.
>
> If your microphone has an H and L switch, that *does* refer to the mic
> impedance, and it should be set to "L" for use with modern transceivers
> which use a low impedance microphone.
>
> You said "headset" which tells me you are referring to SSB rather than the
> Data mode setting question of the original post. For SSB use, adjust the
> Mic Gain control to give you 5 to 7 bars on the ALC meter.
>
> The K3 "ALC" meter is a combination of a 'VU' meter and an ALC meter. The
> onset of ALC is indicated by the 5th bar. Those bars below the 5th are an
> aid in setting the correct audio level (especially useful for Data Modes).
>
> This is all in the manual - refer to the mode you are using - Data or SSB
> and set up like the manual indicates.
>
> 73,
> Don W3FPR
>
>
> On 3/4/2013 5:11 PM, Jay wrote:
>> Don
>>
>> As a K3 newbie here, would the mic impedance (H or L) be a possible
>> issue? I could not get any ALC movement until I went to H impedance for
>> the Heil headset I have. I was then able to get all the ALC needed with
>> the mic gain.
>>
>

Don Wilhelm-4

Re: K3 PSK no output

In reply to this post by WM3M

Yes, the K3 will work for data modes using SSB. However, the DATA A
submode is preferred over SSB. The first advantage is that compression
is turned off, and the second is that the TX Equalization is turned off
too. If you have compression set for SSB and are using TX EQ, you will
need to remove those when operating in data modes in SSB. Data A
submode will do that for you, but yes, the default filter width is for
about 400 Hz. If you want a full bandwidth waterfall, it is as easy as
turning the WIDTH knob. A single knob adjustment is certainly easier
than going into the menu to set TX EQ flat on all ranges and then
adjusting the COMP knob.

But to each his own - I do not begrudge those who want to use data in
SSB mode, but since I operate both SSB and Data modes, it is easier for
me to use the K3 Data mode for data and SSB mode for SSB - I don't have
to change the settings once I set things up.

73,
Don W3FPR
On 3/4/2013 6:47 PM, WM3M wrote:
> K3 does not have to be in Data mode to work with the Signalink.
> I use it all the time in SSB (USB) for data modes, especially for PSK31.
> Most data mode software has built in filtering/DSP so the wider
> bandwidth on receive works very well, for PSK31, and other data modes.
>
>

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Joe Subich, W4TV-4

Re: K3 PSK no output

In reply to this post by WM3M

You are far better served to use DATA A with the Signalink (or
any other interface).

DATA A has several beneficial features:
1) it (typically) selects audio from the line in jack and mutes
the microphone - meaning that one does not have background
noise and hum from the mic interfering with the modulation or
causing broadband interference to others
2) it disables TX Equalization so audio levels are not up/down
depending on where in the transmit passband one is operating
3) it disables the compressor so one does not get distortion or
generate IMD to others operating nearby
4) it changes the "scale" of the ALC meter (expanding the range
around the "4 bar" position) so it s much easier to set the
correct modulation level for optimum audio input level.

In short, connecting any audio interface to "Line In", using DATA A,
and setting Mic+Line = off is the proper way to use the K3 for data
modes - for both the best performance and as a "good neighbor" on
the air.

73,

... Joe, W4TV

On 3/4/2013 6:47 PM, WM3M wrote:

> K3 does not have to be in Data mode to work with the Signalink.
> I use it all the time in SSB (USB) for data modes, especially for PSK31.
> Most data mode software has built in filtering/DSP so the wider
> bandwidth on receive works very well, for PSK31, and other data modes.
>
>
>
> -----Original Message----- From: MontyS
> Sent: Monday, March 04, 2013 5:43 PM
> To: Jay
> Cc: [hidden email]
> Subject: Re: [Elecraft] K3 PSK no output
>
> Be sure you are in DATA mode, not SSB mode. You will get no output in SSB
> mode.
> Monty K2DLJ
>
>
> Don
>
> As a K3 newbie here, would the mic impedance (H or L) be a possible
> issue? I
> could not get any ALC movement until I went to H impedance for the Heil
> headset I have. I was then able to get all the ALC needed with the mic
> gain.
>
> Jay
>
>
> ...just a thought
> ----- Original Message ----- From: "Don Wilhelm" <[hidden email]>
> To: "K5HM" <[hidden email]>
> Cc: <[hidden email]>
> Sent: Monday, March 04, 2013 2:01 PM
> Subject: Re: [Elecraft] K3 PSK no output
>
>
>> Ron,
>>
>> Try in TX TEST mode - everything goes into transmit except there is no
>> RF output.
>> Adjust the audio level (both SignaLink and the "mic' gain on the K3)
>> to obtain 4 bars solid on the ALC meter with the 5th bar flickering.
>> If you are not able to obtain that level, check the SignaLink
>> documentation to determine how to plug it for Line level audio output
>> - I believe it is a jumper, but the default position is for low level
>> output (mic level).
>>
>> Once you are able to obtain the proper deflection on the ALC meter,
>> get out of TX Test and try it. You should have RF output.
>>
>> 73,
>> Don W3FPR
>>
>> On 3/4/2013 4:42 PM, K5HM wrote:
>>> Using Tigertronics sound card. Followed the set up instructions for
>>> PSK in
>>> the Fred Cady, KE7X book. Installed the K3 jumper block from DX
>>> Engineering,
>>> and the K3 interface cable. Using Digipan, I try to call CQ. Rig goes
>>> into
>>> transmit mode, the macro runs but no power out. Adjusting the TX pot
>>> on the
>>> Signalink does not make a difference. I can receive Ok. But either the
>>> soundcard is not outputting anything or I missed a step in the setup.
>>> Config.Lineout is 10 as recommended VOX/No VOX does not seem to
>>> matter. Rig
>>> is in Data A mode. I must be missing a step in set up.
>>>
>>> Suggestions welcome.
>>>
>>> 73,
>>> Ron, K5HM
>>> [hidden email]
>>> www.qrz.com/db/k5hm
>>>
>>>
>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> Elecraft mailing list
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>
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>
> ______________________________________________________________
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Bill Frantz

Re: K3 PSK no output

In reply to this post by WM3M

My computer software has a choice of waterfall bandwidth, 2K
(from 400Hz to 2400Hz) or 4K (400Hz to 4400Hz). In both Data A
and SSB I can adjust the DSP bandwidth up to 4200Hz on the high
end which gives me most of the bandwidth of the 4K setting. Note
that you will need a wider crystal filter than the 2.7KHz
default to get the wider DSP bandwidths.

Most of the time I narrow the DSP bandwidth down to 100 to 250Hz
for QSOs. It keeps strong stations from overloading my computer
software input.

Don and Joe have described the advantages of Data A over SSB for data.

Cheers - Bill, AE6JV

On 3/4/13 at 3:47 PM, [hidden email] (WM3M) wrote:

>K3 does not have to be in Data mode to work with the Signalink.
>I use it all the time in SSB (USB) for data modes, especially for PSK31.
>Most data mode software has built in filtering/DSP so the wider
>bandwidth on receive works very well, for PSK31, and other data modes.

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www.pwpconsult.com | - Vaclav Havel | Los Gatos,
CA 95032

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K5HM

Re: K3 PSK no output

Yup, I love the fact that I can look over all 4 Khz and narrow it down as
needed.

73,
Ron, K5HM
[hidden email]
www.qrz.com/db/k5hm

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Bill Frantz
Sent: Monday, March 04, 2013 8:16 PM
To: [hidden email]
Subject: Re: [Elecraft] K3 PSK no output

My computer software has a choice of waterfall bandwidth, 2K
(from 400Hz to 2400Hz) or 4K (400Hz to 4400Hz). In both Data A
and SSB I can adjust the DSP bandwidth up to 4200Hz on the high
end which gives me most of the bandwidth of the 4K setting. Note
that you will need a wider crystal filter than the 2.7KHz
default to get the wider DSP bandwidths.

Most of the time I narrow the DSP bandwidth down to 100 to 250Hz
for QSOs. It keeps strong stations from overloading my computer
software input.

Don and Joe have described the advantages of Data A over SSB for data.

Cheers - Bill, AE6JV

On 3/4/13 at 3:47 PM, [hidden email] (WM3M) wrote:

>K3 does not have to be in Data mode to work with the Signalink.
>I use it all the time in SSB (USB) for data modes, especially for PSK31.
>Most data mode software has built in filtering/DSP so the wider
>bandwidth on receive works very well, for PSK31, and other data modes.

-----------------------------------------------------------------------
Bill Frantz | Truth and love must prevail | Periwinkle
(408)356-8506 | over lies and hate. | 16345
Englewood Ave
www.pwpconsult.com | - Vaclav Havel | Los Gatos,
CA 95032

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K5HM

Re: K3 PSK no output

In reply to this post by Don Wilhelm-4

Don,

That is exactly what happened when I tried to adjust the output with the
Audio gain! I'd set it once to be ok. Then on the next transmission it was
different.

So I now have it set with the ALC configured per the manual and the power
setting in the K3 controls output power.

73,
Ron, K5HM
[hidden email]
www.qrz.com/db/k5hm

-----Original Message-----
From: Don Wilhelm [mailto:[hidden email]]
Sent: Monday, March 04, 2013 5:26 PM
To: K5HM
Cc: [hidden email]
Subject: Re: [Elecraft] K3 PSK no output

Ron,

I suspect you set the powe5r to maximum and are attempting to control
the RF output with the audio level. That is typical advice given on the
internet and other data mode instructions. That advice is not for the
K3 - it will not work right.

With the K3, ignore that common advice for other transceivers which tell
you to set the transceiver to full drive and adjust the RF level by
changing the audio level.

The way the K3 controls power is different than most rigs - it measures
the actual power output and then adjusts the RF drive to produce the
power requested by the power knob.

So with the K3, adjust the audio for 4 ALC bars with the 5th bar
flickering, and use the power knob to set your desired power output.

Failure to do it that way will result in "power hunting" by the K3 and
you will not have consistent power output.

73,
Don W3FPR

On 3/4/2013 5:38 PM, K5HM wrote:
> Don,
>
> Ok, that worked, Tried a couple of Q's and all ok but notice that with 5
> bars on ALC I get 100 watts out. If I Adjust the TX pot on the Signalink
to
> reduce power, The ALC drops off.
>
> On ICOM gear I'm used to controlling power out with theTX pot on the
> Signalink. Is it different for K3?
>
>

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Don Wilhelm-4

Re: K3 PSK no output

Ron,

It is great to hear that you have found success.

73,
Don W3FPR

On 3/4/2013 9:30 PM, K5HM wrote:

> Don,
>
> That is exactly what happened when I tried to adjust the output with the
> Audio gain! I'd set it once to be ok. Then on the next transmission it was
> different.
>
> So I now have it set with the ALC configured per the manual and the power
> setting in the K3 controls output power.
>
> 73,
> Ron, K5HM
> [hidden email]
> www.qrz.com/db/k5hm
>
> -----Original Message-----
> From: Don Wilhelm [mailto:[hidden email]]
> Sent: Monday, March 04, 2013 5:26 PM
> To: K5HM
> Cc: [hidden email]
> Subject: Re: [Elecraft] K3 PSK no output
>
> Ron,
>
> I suspect you set the powe5r to maximum and are attempting to control
> the RF output with the audio level. That is typical advice given on the
> internet and other data mode instructions. That advice is not for the
> K3 - it will not work right.
>
> With the K3, ignore that common advice for other transceivers which tell
> you to set the transceiver to full drive and adjust the RF level by
> changing the audio level.
>
> The way the K3 controls power is different than most rigs - it measures
> the actual power output and then adjusts the RF drive to produce the
> power requested by the power knob.
>
> So with the K3, adjust the audio for 4 ALC bars with the 5th bar
> flickering, and use the power knob to set your desired power output.
>
> Failure to do it that way will result in "power hunting" by the K3 and
> you will not have consistent power output.
>
> 73,
> Don W3FPR
>
>

Bill Frantz

Re: K3 PSK no output

In reply to this post by Bill Frantz

It occurs to me that you might not be able to transmit on
frequencies much higher than 3KHz or so because of the limits in
the transmit bandwidth with the 2.7KHz filter.

Cheers - Bill, AE6JV

On 3/4/13 at 6:16 PM, [hidden email] (Bill Frantz) wrote:

>My computer software has a choice of waterfall bandwidth, 2K
>(from 400Hz to 2400Hz) or 4K (400Hz to 4400Hz). In both Data A
>and SSB I can adjust the DSP bandwidth up to 4200Hz on the high
>end which gives me most of the bandwidth of the 4K setting.
>Note that you will need a wider crystal filter than the 2.7KHz
>default to get the wider DSP bandwidths.

-----------------------------------------------------------------------
Bill Frantz |Security, like correctness, is| Periwinkle
(408)356-8506 |not an add-on feature. - Attr-| 16345
Englewood Ave
www.pwpconsult.com |ibuted to Andrew Tanenbaum | Los Gatos,
CA 95032

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Joe Subich, W4TV-4

Re: K3 PSK no output

In fact, one can not transmit above 2800 Hz (with the 2.8 KHz filter)
as the filter roll off (and perhaps DSP limitations) result in little
or no output.

73,

... Joe, W4TV

On 3/5/2013 11:33 PM, Bill Frantz wrote:

> It occurs to me that you might not be able to transmit on frequencies
> much higher than 3KHz or so because of the limits in the transmit
> bandwidth with the 2.7KHz filter.
>
> Cheers - Bill, AE6JV
>
> On 3/4/13 at 6:16 PM, [hidden email] (Bill Frantz) wrote:
>
>> My computer software has a choice of waterfall bandwidth, 2K (from
>> 400Hz to 2400Hz) or 4K (400Hz to 4400Hz). In both Data A and SSB I can
>> adjust the DSP bandwidth up to 4200Hz on the high end which gives me
>> most of the bandwidth of the 4K setting. Note that you will need a
>> wider crystal filter than the 2.7KHz default to get the wider DSP
>> bandwidths.
>
> -----------------------------------------------------------------------
> Bill Frantz |Security, like correctness, is| Periwinkle
> (408)356-8506 |not an add-on feature. - Attr-| 16345 Englewood Ave
> www.pwpconsult.com |ibuted to Andrew Tanenbaum | Los Gatos, CA 95032
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>