STL Calculator

This Calculation Sheet Calculates the expected received Power for a given Transmitter power and Transmit and Receive antenna system including cable losses fro an STL link.

Studio (STL Transmit) Equipment
Studio (STL Tx) Antenna Type:
Frequency: MHz
STL Tx Cable Type:
Studio STL Tx Cable Length: metres
STL Transmitter Power: watts
STL Distance
STL Path Length: Kilometres
Studio (STL Receive) Equipment
Studio (STL Rx) Antenna Type:
STL Rx Cable Type:
Receive Site Rx Cable Length: metres
STL Receiver Required Signal Power at Input: – dBm
Transmit system gain: dB
Receive system gain: dB
Path Loss: dB
Total System Gain: dB
Transmitter Power in dBm: dBm
Received Power in dBm: dBm
Received Power in dBuV: dBuV
Signal Margin in dB: dB


Maximum Power rating for RG213 cable is 250 watts taking into account environmental de-rating.
The limit of transmitter power for cable power dividers is 250 watts.
RF Works is unable to take liability for your calculations.
Please contact RF Works for any further detailed advice.