A baseband signal of 3.5, MHz frequency is mo | vedclass

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(C) The carrier frequency is $f_{c} = 3.5\, GHz = 3.5 	imes 10^{9}\, Hz$.The wavelength $\lambda$ of the carrier signal is given by $\lambda = \frac{

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$21.4\, mm$

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(C) The carrier frequency is $f_{c} = 3.5\, GHz = 3.5 	imes 10^{9}\, Hz$.The wavelength $\lambda$ of the carrier signal is given by $\lambda = \frac{c}{f_{c}}$,where $c = 3 	imes 10^{8}\, m/s$ is the speed of light.$\lambda = \frac{3 	imes 10^{8}}{3.5 	imes 10^{9}} = \frac{3}{35}\, m \approx 0.0857\, m = 85.7\, mm$.The minimum length of the antenna required for efficient transmission is $\frac{\lambda}{4}$.Minimum length $= \frac{85.7\, mm}{4} = 21.425\, mm \approx 21.4\, mm$.

List-$I$	List-$II$
$A$. $AM$ Broadcast	$I$. $88-108\,MHz$
$B$. $FM$ Broadcast	$II$. $540-1600\,kHz$
$C$. Television	$III$. $3.7-4.2\,GHz$
$D$. Satellite Communication	$IV$. $54-890\,MHz$

$A$ baseband signal of $3.5\, MHz$ frequency is modulated with a carrier signal of $3.5\, GHz$ frequency using amplitude modulation. What should be the minimum size of antenna required to transmit the modulated signal?

Similar Questions

Match List-$I$ with List-$II$:

List-$I$ List-$II$

$A$. $AM$ Broadcast $I$. $88-108\,MHz$

$B$. $FM$ Broadcast $II$. $540-1600\,kHz$

$C$. Television $III$. $3.7-4.2\,GHz$

$D$. Satellite Communication $IV$. $54-890\,MHz$

Choose the correct answer from the options given below:

Broadcasting antennas are generally

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If the height of transmitting and receiving antennas are $80\,m$ each,the maximum line of sight distance will be $..............\,km$. Given: Earth's radius $= 6.4 \times 10^6\,m$.

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