19 Sep
2008
19 Sep
'08
1:02 p.m.
On Fri, September 19, 2008 16:58, Ryan Butler wrote:
Tim Tapio wrote:
Hi Tim,
How much signal reduction is there as the result of having the wrong circular polarization?
The difference between RHCP and LHCP is 20 dB
The difference between Horizontal and Vertical Linear is 20 dB
The difference between (RHCP or LHCP) and (Horizontal or Vertical) is 3 dB
If I understand right, you only get 3db extra when using CW/CCW but I have also read somewhere that you also lose 3db when running CW/CCW so why use Circulair polarisation and not just Horizontal or Vertical pol.
Ryan, NF0T
73's Jan / PE0SAT