[NLRS] Aircraft Scatter

[Andrew Flowers]

Bill,

If there is both a reflected and a direct ray, this would be what you would expect.  If you have two rays of equal amplitude, they will sometimes perfectly cancel giving you a null.  On the up side you only can get 3dB of improvement when they are in phase.  Thus "picket fencing" is usually described as lots of nulls in the signal rather than lots of peaks.

Such is the nature of our logarithmic perceptual qualities....

Andy K0SM/2

> On Dec 14, 2013, at 11:43 AM, Bill Davis <cqbilld at yahoo.com> wrote:
> 
>    On Gary's skeds it is VERY UNUSUAL to NOT see aircraft "effects" on his signals. It seems to be more common on 1296 and then 902. I wouldn't characterize the effects be enhancement, for often there is as much "nulling" of the signal as anything