A transmitter has an output power of 100W. It is connected to its antenna by a feedline that is 25m long and properly matched.  The loss in the feedline is 2.5 dB / 100m. The antenna has a gain of 5.5 dBi. How much power reaches the antenna?

An isotropic radiates 150W of power in free space calculate the electric field intensity at a distance of 12km from the source.

A transmitter has an output power of 50W. It is connected to its antenna by a feedline that is 25m long and properly matched.  The loss in the feedline is 5 dB / 100m. The antenna has a gain of 8.5 dBi.  How much power reaches the antenna?

What would be the effect on the receiver signal level of making the transmitter power 100 times stronger, express your answer in dB.

Describe how the signal level at the receiver would be altered if the distance from the transmitter were to be decreased by 20%. Express this theoretical change in terms of decibels (dB)

A certain antenna has a gain of 7 dB with respect to an isotropic radiator operates at 200MHz. How much power would it absorb from a signal with a field strength of 50uV/m

Calculate the radio horizon for 50 ft transmitting antenna and receiving antenna of 30ft. Calculate the required height increase for the receiving antenna if a 10% increase in radio horizon were required.

A cellular radio transmitter has a power output of 3W at 1800MHz. It uses an antenna with a gain of 3dBi. The receiver is 3km away, with an antenna gain of 12 dBi. Calculate the received signal strength in dBm, ignoring any losses in transmission lines.

What power density is required to produce an electric strength of 180 V/m in air

A satellite transmitter, which is functioning at a frequency of 9 GHz and boasts an antenna gain of 30 dBi, is in operation. Situated at a distance of 25,000 kilometers from the transmitter, there is a receiver equipped with an antenna gain of 28 dBi. Given that the transmitter’s output power is 500 watts, one needs to determine the Effective Isotropic Radiated Power (EIRP) expressed in dBW.