[Elecraft] Spectrogram

[Fred Jensen]

Mike wrote:

> I am going to start setting up my K2 and will be using Spectrogram for 
> some of the steps. I downloaded ver 5.17 onto my laptop. Setup the scan 
> input page according to N0SS website. With no input the scan input 
> screen has the normal rise up to -20 then it dropes to -60. Where it is 
> suppose to stay but I have some ripples up around -40. Is there an 
> adjustment in the sound card I need to do? Or does one of the scan input 
> values need to be changed?

I first used Spectrogram on a cheap, POJ Gateway laptop I bought when I 
retired and turned in the company's laptop.  I had noise in the display 
sufficient to mask the audio being fed in from my K2.  I tried bonding 
the K2 and laptop grounds together, grounding and ungrounding, and was 
about give up when I unplugged the laptop power.  Noise totally went 
away.  If you're on a laptop, it would be worth a try.

I no longer have the Gateway.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2009 Cal QSO Party  3-4 Oct 2009
- www.cqp.org