In satellite communication,the uplink frequency band used is

$A$ carrier wave of peak voltage $14\,V$ is used for transmitting a message signal. The peak voltage of the modulating signal required to achieve a modulation index of $80\%$ will be.......$V$

In the process of modulation,........

If the maximum and minimum voltage of an amplitude modulated wave are $V_{max}$ and $V_{min}$ respectively,then the modulation factor is:

The transmission of $UHF$ range frequencies is done by.........

The maximum distance up to which $TV$ transmission from a $TV$ tower of height $h$ can be received is proportional to