Sidetone

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Sidetone

N2PD
I am hesitant to put this question up here because I have seen so many
posts about it but here goes anyway.  I love my K2 sn 05834 except for
one thing...the sidetone.  There seems to be excessive thumps (clicks?)
on both make and break, especially when using the internal speaker.  I
know there were alot of comments about the sine wave improvements, but
has anyone been able to eleiminate or reduce significantly the thumps?
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Paul, N2PD
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RE: Sidetone

Ron D'Eau Claire-2
Sounds like you have t-r in the MENU set to 0.00, Paul. That makes the t/r
delay zero so you hear the actual switching going on.

Try 0.01 or greater for smooth t/r switching.

Ron AC7AC

-----Original Message-----
I am hesitant to put this question up here because I have seen so many
posts about it but here goes anyway.  I love my K2 sn 05834 except for
one thing...the sidetone.  There seems to be excessive thumps (clicks?)
on both make and break, especially when using the internal speaker.  I
know there were alot of comments about the sine wave improvements, but
has anyone been able to eleiminate or reduce significantly the thumps?

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Re: Sidetone

N2PD
Ron D'Eau Claire wrote:

>Sounds like you have t-r in the MENU set to 0.00, Paul. That makes the t/r
>delay zero so you hear the actual switching going on.
>
>Try 0.01 or greater for smooth t/r switching.
>
>Ron AC7AC
>
>-----Original Message-----
>I am hesitant to put this question up here because I have seen so many
>posts about it but here goes anyway.  I love my K2 sn 05834 except for
>one thing...the sidetone.  There seems to be excessive thumps (clicks?)
>on both make and break, especially when using the internal speaker.  I
>know there were alot of comments about the sine wave improvements, but
>has anyone been able to eleiminate or reduce significantly the thumps?
>
>
>
>  
>
Thanks for the response, but changing the T/R timing was the first thing
I did.
73
Paul
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Paul, N2PD
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RE: Sidetone

Ron D'Eau Claire-2
Wups! Okay, that exhausts my tiny knowledge of the switching issue! Perhaps
Don or one of the other guys here will have some more ideas. Never hesitate
to ask - believe it or not, that's what this reflector is for (although at
times we wander so far afield one might not realize it, Hi!)

Ron AC7AC
 

-----Original Message-----

Ron D'Eau Claire wrote:

>Sounds like you have t-r in the MENU set to 0.00, Paul. That makes the
>t/r delay zero so you hear the actual switching going on.
>
>Try 0.01 or greater for smooth t/r switching.
>
>Ron AC7AC
>
>-----Original Message-----
>I am hesitant to put this question up here because I have seen so many
>posts about it but here goes anyway.  I love my K2 sn 05834 except for
>one thing...the sidetone.  There seems to be excessive thumps (clicks?)
>on both make and break, especially when using the internal speaker.  I
>know there were alot of comments about the sine wave improvements, but
>has anyone been able to eleiminate or reduce significantly the thumps?
>
>
>
>  
>
Thanks for the response, but changing the T/R timing was the first thing
I did.
73
Paul
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RE: Sidetone

Marteinn Sverrisson
In reply to this post by N2PD
Regaring the clicks.

-----Original Message-----
I am hesitant to put this question up here because I have seen so many
posts about it but here goes anyway.  I love my K2 sn 05834 except for
one thing...the sidetone.  There seems to be excessive thumps (clicks?)
on both make and break, especially when using the internal speaker.  I
know there were alot of comments about the sine wave improvements, but
has anyone been able to eleiminate or reduce significantly the thumps?

Do the clicks disappear when the RF-gain is turned down?

If so the clicks have nothing to do with the sidetone, but rather
the muting circuit. This is my experience after the (tf3ma) sidetone mod.

The muting circuit is cutting of the audio noise/signal abruptly creating
the clicks, solution would be to "smoothing" the turn off/on of
the muting fets (RC filter in the gate circuit).

just my $0.02

73 and happy new year
Matti

--
   Marteinn Sverrisson    TF3MA
          Langitangi 2    Internet: tf3ma [at] raunvis [dot] hi [dot] is
        270 Mosfellsbær   http://www.raunvis.hi.is/~tf3ma
               Iceland
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RE: Sidetone

Don Wilhelm-3
In reply to this post by Ron D'Eau Claire-2
Paul,

First check to be certain you have 8R HOLD set on - accessible from the T-R
menu, edit the parameter (move the cursor to the right) and tap the DISPLAY
button to toggle 8R HOLD or 8R NOR.

Then check carefully to determine when the click occurs 1) at the beginning
of the transmit cycle or 2) at the end of the cycle (hint, set the speed
slow and send a few dashes).

Lastly, turn the AF GAIN to zero (not the RF gain as someone else posted)
and see if the clicks remain.  If you have clicks with the AF Gain at zero,
they are coming from the sidetone generating circuit, but if they are only
prsent with the AF Gain advanced, they are coming from the muting circuit.

Before making any suggestions here, try the above items and then tell us if
you have both the KDSP2 and the KPA100 - if you have both, has your KPA100
been upgraded with the latest changes (KPA100UPKT) - if not, that is your
first step.

73,
Don W3FPR

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]]On Behalf Of Ron D'Eau Claire
> Sent: Tuesday, January 02, 2007 1:48 PM
> To: [hidden email]
> Subject: RE: [Elecraft] Sidetone
>
>
> Wups! Okay, that exhausts my tiny knowledge of the switching
> issue! Perhaps
> Don or one of the other guys here will have some more ideas.
> Never hesitate
> to ask - believe it or not, that's what this reflector is for (although at
> times we wander so far afield one might not realize it, Hi!)
>
> Ron AC7AC
>
>
> -----Original Message-----
>
> Ron D'Eau Claire wrote:
>
> >Sounds like you have t-r in the MENU set to 0.00, Paul. That makes the
> >t/r delay zero so you hear the actual switching going on.
> >
> >Try 0.01 or greater for smooth t/r switching.
> >
> >Ron AC7AC
> >
> >-----Original Message-----
> >I am hesitant to put this question up here because I have seen so many
> >posts about it but here goes anyway.  I love my K2 sn 05834 except for
> >one thing...the sidetone.  There seems to be excessive thumps (clicks?)
> >on both make and break, especially when using the internal speaker.  I
> >know there were alot of comments about the sine wave improvements, but
> >has anyone been able to eleiminate or reduce significantly the thumps?
> >
> >
> >
> >
> >
> Thanks for the response, but changing the T/R timing was the first thing
> I did.
> 73
> Paul
>
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.16.3/614 - Release Date: 1/2/2007
2:58 PM

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Re: Sidetone

N2PD
Don Wilhelm wrote:

>Paul,
>
>First check to be certain you have 8R HOLD set on - accessible from the T-R
>menu, edit the parameter (move the cursor to the right) and tap the DISPLAY
>button to toggle 8R HOLD or 8R NOR.
>
>Then check carefully to determine when the click occurs 1) at the beginning
>of the transmit cycle or 2) at the end of the cycle (hint, set the speed
>slow and send a few dashes).
>
>Lastly, turn the AF GAIN to zero (not the RF gain as someone else posted)
>and see if the clicks remain.  If you have clicks with the AF Gain at zero,
>they are coming from the sidetone generating circuit, but if they are only
>prsent with the AF Gain advanced, they are coming from the muting circuit.
>
>Before making any suggestions here, try the above items and then tell us if
>you have both the KDSP2 and the KPA100 - if you have both, has your KPA100
>been upgraded with the latest changes (KPA100UPKT) - if not, that is your
>first step.
>
>73,
>Don W3FPR
>
>  
>
>>-----Original Message-----
>>From: [hidden email]
>>[mailto:[hidden email]]On Behalf Of Ron D'Eau Claire
>>Sent: Tuesday, January 02, 2007 1:48 PM
>>To: [hidden email]
>>Subject: RE: [Elecraft] Sidetone
>>
>>
>>Wups! Okay, that exhausts my tiny knowledge of the switching
>>issue! Perhaps
>>Don or one of the other guys here will have some more ideas.
>>Never hesitate
>>to ask - believe it or not, that's what this reflector is for (although at
>>times we wander so far afield one might not realize it, Hi!)
>>
>>Ron AC7AC
>>
>>
>>-----Original Message-----
>>
>>Ron D'Eau Claire wrote:
>>
>>    
>>
>>>Sounds like you have t-r in the MENU set to 0.00, Paul. That makes the
>>>t/r delay zero so you hear the actual switching going on.
>>>
>>>Try 0.01 or greater for smooth t/r switching.
>>>
>>>Ron AC7AC
>>>
>>>-----Original Message-----
>>>I am hesitant to put this question up here because I have seen so many
>>>posts about it but here goes anyway.  I love my K2 sn 05834 except for
>>>one thing...the sidetone.  There seems to be excessive thumps (clicks?)
>>>on both make and break, especially when using the internal speaker.  I
>>>know there were alot of comments about the sine wave improvements, but
>>>has anyone been able to eleiminate or reduce significantly the thumps?
>>>
>>>
>>>
>>>
>>>
>>>      
>>>
>>Thanks for the response, but changing the T/R timing was the first thing
>>I did.
>>73
>>Paul
>>
>>    
>>
>--
>No virus found in this outgoing message.
>Checked by AVG Free Edition.
>Version: 7.5.432 / Virus Database: 268.16.3/614 - Release Date: 1/2/2007
>2:58 PM
>
>_______________________________________________
>Elecraft mailing list
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>
>Help: http://mailman.qth.net/subscribers.htm
>Elecraft web page: http://www.elecraft.com
>
>
>
>  
>
8R Hold is set on...t-r delay at .005....no difference with audio
gain....but I'm beginning to wonder if it isn't just the speaker
resonating in the case at certain frequencies...when I change the
sidetone freq to 500hz the pops disappear...and they aren't there in the
headphones at any frequency...I will continue to play with it and see
what else I can discover... Thanks for all the input.
73, Paul, N2PD
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Paul, N2PD
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RE: Sidetone

Don Wilhelm-3
Paul,

If it is not present with the headphones, then yes, it is in the speaker
itself - nothing you can do the the K2 circuits will have any effect.
You might try an external speaker as a test.

73,
Don W3FPR

> -----Original Message-----
> >
> 8R Hold is set on...t-r delay at .005....no difference with audio
> gain....but I'm beginning to wonder if it isn't just the speaker
> resonating in the case at certain frequencies...when I change the
> sidetone freq to 500hz the pops disappear...and they aren't there in the
> headphones at any frequency...I will continue to play with it and see
> what else I can discover... Thanks for all the input.
> 73, Paul, N2PD
>
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.16.3/614 - Release Date: 1/2/2007
2:58 PM

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