[Elecraft] Sidetone

[Paul Del Negro]

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: elecraft-bounces at mailman.qth.net
>>[mailto:elecraft-bounces at mailman.qth.net]On Behalf Of Ron D'Eau Claire
>>Sent: Tuesday, January 02, 2007 1:48 PM
>>To: elecraft at mailman.qth.net
>>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
>>
>>    
>>
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>
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