Bob,

I downloaded 1.6.3 svn 560 and the pop is gone with  the dma buffer set 
to 2048, the audio buffer to 1024, and the dsp buffer to 2048 with the 
sampling rate at 96000.  When I set the dsp buffer to anything smaller 
than 2048, the audio motorboats.  However, if I set the audio buffer to 
2048, the dsp buffer can be set all the way to 256 without 
motorboating.  I just do not understand the relatioship between these 
buffers well enough to know if this is really a malfunction or not.

On the X2 delay issue, I thought the delay was to enable one to key an 
external amplifier before the SDR put out any RF and then to turn the 
SDR off before the external amplifier was switched  from the antenna, 
and the delay was in milliseconds.  It appears that that is exactly what 
is happening when the SDR is keyed.  When the SDR is unkeyed, the RF and 
X2 relay keying drop off together, but the tone during tune remains for 
the delay time.  I set the X2 delay to one second so I could better tell 
what is happening.  Under normal operating conditions this is not a 
problem.  The only reason I mention it is maybe that is not the way you 
intended it to be.

Thank you for all the effort on this.

73,   Tom   W0IVJ


Robert McGwier wrote:

> Please let me know if the code I checked in fixed the problem.  Thanks 
> for the hint Frank.
>
> Bob
>
>
>
> Tom Thompson wrote:
>
>> The X2 delay is certainly the key.  My svn 537 that was working had 
>> the X2 delay set to zero.  When I set it to a larger number the tone 
>> can be heard when switching from tune back to receive.  I appologize 
>> for the misleading with svn 537.
>>
>> Tom,   W0IVJ
>>
>>
>> [EMAIL PROTECTED] wrote:
>>
>>  
>>
>>> Frank,
>>>
>>> I think you are on the right track here.  A working example of the 
>>> problems
>>> can be seen by setting X2 Delay to (say for example ) 200ms and then
>>> pressing the TUNE button. You will notice that when you toggle OFF 
>>> the tune
>>> button you hear the CW side tone for whatever that delay amount is 
>>> set to.
>>> Also, when in SSB,  you can notice the last "sylable" of spoken 
>>> words into
>>> the mic, if you keep talking past exact point when you toggle off 
>>> the PTT..
>>> So something isn't quite right there..
>>>
>>> -Dan
>>>
>>> ----- Original Message -----
>>> From: "Frank Brickle" <[EMAIL PROTECTED]>
>>> To: <flexradio@flex-radio.biz>
>>> Sent: Tuesday, June 27, 2006 2:05 PM
>>> Subject: Re: [Flexradio] audio pop
>>>
>>>
>>>  
>>>
>>>    
>>>
>>>> Where is the value of top.swch.fade -- that's essentially the TRX
>>>> crossfade time, in samples -- being set? In the PowerSDR code I
>>>> can trace it back through setup_switching() to setup() but haven't
>>>> been able to find the call to setup() :-)
>>>>
>>>> 73
>>>> Frank
>>>> AB2KT
>>>>
>>>> Tom Thompson wrote:
>>>>   
>>>>       
>>>
>
>


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