Q$1/$Put $($TRUE$)$ or $($FALSE$)$ and Correct the false Answer $40$ marks

$1.$ The gain of an antenna is the ratio of the power radiated $($or received$)$ per unit solid angle.

$2.$ The radiation pattern indicates the variations of gain with direction

$3.$ The inclination that is the ratio of the major and minor axes of the ellipse.

$4.$ A satellite link has same carrier to noise ratio in uplink as well as in down link. The overall Carrier to noise ratio of the link will be always less than that of individual

$5.$ If $500$ watt of RF power fed to an earth station antemna saturates a transponder having SFD of $\backslash (-86\backslash$mathrm$\{$dBw$\}/\backslash$mathrm$\{$sq$\}\backslash )-$meter at a distance of $40000$ Km $,$ then the earth station transmit antenna gain is $50$ dB

$6.$ A geostationary satellite has an elevation angle of $350$ with respect to a particular earth station at mean sea level. The earth station is operating at $4$ GHz downlink frequency. The specific attenuation due to stratiform rainfail in the downlink is $\backslash (1\mathrm{.}4\backslash$mathrm$\{$~dB$\}/\backslash$mathrm$\{$Km$\}\backslash ),$ the signal attenuation will be $5\mathrm{.}4$ dB in the downlink assuming rain height of $3$ Km $.$

$7.$ A standard earth station with G$/$T of $\backslash (30\backslash$mathrm$\{$~dB$\}/\backslash$mathrm$\{$K$\}\backslash )$ receives a stgnat measures the $\backslash (\backslash$mathrm$\{$C$\}/\backslash$mathrm$\{$N$0\}\backslash )$ of a satellite beacon as $90$ dBHz $,$ whereas the $\backslash (\backslash$mathrm$\{$C$\}/\backslash$mathrm$\{$N$0\}\backslash )$ of the same beacon is measured at the same location by a VSAT receiver is $70$ dBHz $,$ the G$/$T of the VSAT station receiver will be $\backslash (10\backslash$mathrm$\{$~dB$\}/\backslash$mathrm$\{$K$\}\backslash )$

$8.$ saturation flux density is the flux density required at the receiving antenna to produce saturation of TWTA is termed the saturation flux density.

$9.$ A single mode of operation is a transponder channel aboard a satelite may be fully loaded by a full duplex transmission channel from an earth$-$station. This is referred to as a single access mode of operation

$10.\backslash (\backslash$mathrm$\{$S$\}/\backslash$mathrm$\{$N$\}\backslash )$ introduced in the preceding section, is used to refer to the ratio of signal power to noise power at the receiver output. This ratio is sometimes referred to as the post detector