Question

Q5. 200 kbps random data is transmitted using Manchester encoding. The first 2 spectral nulls are at :
(a) 0 and 100 kHz
(b) 100 and 200 kHz
(c) 0 and 100 kHz
(d) 0 and 200 kHz
(e) 200 and 400 kHz
(f) none of the above.

Q6. Small dish antennas (50-60 cm) are used for TV reception from satellites. For a given frequency (e.g. 2 GHz), as the size of the antenna becomes smaller
(a) more accurate pointing becomes necessary
(b) less accurate pointing becomes acceptable
(c) pointing accuracy is not a ected by the size of the antenna
(d) none of the above

Answer 1

cannedw CSI # amscannér

a) mere accsak batn ting becmes meax CS Scanned with