Satellite TTC Uplink Margin Calculator

Designed by Dinesh

Uplink Frequency in MHz:

Ground Station Transmitter Power in dBm:

Cable Loss from Tx to antenna in dB :

Ground Station Antenna Gain in dB:

EIRP in dBm =
Orbit Height in Km:

Worst Elevation Angle in degree:

Slant Range in Km =

Path Loss in dB =
Satellite Antenna gain in dBi:

Cable Loss between Satellite Antenna & Receiver in dB:

Received Signal Power in dBm =
Telecommand Thershold in dBm:

Link Margin for Telecommand in dB =
Modulation Loss in dB for modulation index 0.7 radain:

Power Available in Modulated Signal in dB =
Boltzman constant in dBW - K=1.38x10-23:

Onboard Antenna Temperature (T) (1200K) in dBW:

Receiver Filter Bandwidth (B) (300 KHz) for demodulated signal:

noise Power in Modulated Signal in dBW =
SNR required:

Link Margin for Modulated Signal =