[TenTec] Orion II NR Performance Measurements

[Lin Davis]

Hi Ron,

What you described is the way I have been using the v2.xxx NR since day one 
(rcv'd OII 12/29/05). Changing the NR value seems to adjust the amount of 
expansion, and with the rf gain, the user can set the threshold. And I find it 
helps a lot. Also with SSB, but not as much for obvious reasons. Is this also 
your impression?


73,
Lin
WB1AIW


Ron Castro wrote:

> You are right about that Lin.  From what I can hear using the NR (2.032) 
> Downward Expansion is an effective feature that makes CW easier to copy if 
> the threshold is set just below the desired signal.  The way to test it 
> would be to measure the difference between the noise levels with the tone 
> turned off, as it would be between dits and dahs.
> 
> Ron N6AHA
>