[DSP-10] Software birdie???

Lee Scott - AA1YN aa1yn at aa1yn.com
Wed Jan 4 12:46:04 EST 2006


Another update.

In further checking, I believe this is the 5KHz birdie which I thought was 
eliminated.  Just in case I picked up an old file, I re downloaded the "DSP 
Program for DSPx and KDSP10" uhf3x_30.zip file and ran that one with the 
same results.

I have not received any comments on the last two posts. Would really like 
to hear a comment or two about this problem.

Lee - AA1YN

At 08:31 AM 1/3/2006 -0500, you wrote:
>As an update,
>
>I powered up the KDSP10x without hardware. I grounded the two audio 
>inputs.  The same birdie appears and as you move up in freq (CW mode), the 
>birdie moves up also.  This to me would indicate it is coming from the 
>KDSP10 internally.
>
>Lee - AA1YN
>
>At 03:45 PM 1/2/2006 -0500, you wrote:
>>I am in the process of building a DSP-10 for NG4C and have the 2 PLLs up 
>>and running with the KDSP10x.  I do not have the RF nor audio section 
>>done.  The KDSP is only connected via P101.  I noticed in CW mode, there 
>>is a birdie of about 3dB @1200Hz with the freq set for 144.000  It does 
>>move up in audio freq as I increase the RF Freq.
>>
>>I am running with the latest 3.5 software and the latest DSPx software.
>>


Lee Scott - AA1YN http://www.aa1yn.com
Home of the VHF & Up Register http://www.aa1yn.com/vhf
Home of the VHF Talk chatroom http://vhftalk.aa1yn.com
Hooksett, NH
FN43gc52



More information about the DSP-10 mailing list