LNB Saturation

Transponder EIRP	dBW
Number of Transponders (Worst case about 60 on one polarisation)
Satellite total EIRP	dBW
Satellite Position
Satellite Position	equals West
Site Position
Latitude	Degminsec
Longitude	Degminsec
Azimuth	Degrees
Elevation	Degrees
Slant Range	Km
Atmospheric Loss	dB (use 0.2dB)
Downlink Frequency	Mhz
Free Space Path Loss	dB
Power reaching Antenna	dBW
Power flux density at earthstation	dBW/M^2
Antenna Diameter	m
Antenna Efficiency	%
Antenna Gain	dBi
Feed Loss	dB
LNB Input VSWR	1: (Probably not needed 1:1 =0 dB loss)
LNB input power	dBm
LNB Gain	dB
LNB output power	dBm
LNB 1dB Compression point	dBm

This calculator calculates total LNB power for all carrieres on one polarisation.
On a single polarisation it can be "worst case" 60 transponders.30 in lowband and 30 i highband.
For standard Universal LNB's both highband and lowband must be taken in to consideration. For LNB's with only one local oscillator
frequency only highband or lowband needs to be taken into consideration.

To avoid intermodulation noise in the LNB as result of saturation it is recommended that the LNB Output power is 7dB lower than the LNB's 1dB
compression point. A good LNB has a compression point higher than +5dB.
To find the compression point see the datasheet for your LNB.

LNB's should be designed to work with a total satelite EIRP of 70dBW without being saturated. This is extremly important to avoid LNB saturation
when new satellites( more power) is added on a orbital position.