PSEB-COMMUNICATIONS SYSTEMS-EXERCISE
- Which of the following frequencies will be suitable for beyond-the-hor...
01:39
|
- Frequencies in the UHF range normally propagate by means of:
01:43
|
- Digital signals (i) do not provide a continuous set of values, (ii) re...
02:36
|
- Is it necessary for a transmitting antenna to be at the same height as...
03:42
|
- A carrier wave of peak voltage 12V is used to transmit a message signa...
01:17
|
- A modulating signal is a square wave, as shown in Fig. 15.14. The carr...
02:57
|
- A modulating signal is a square wave, as shown in Fig. 15.14. The carr...
01:53
|
- For an amplitude modulated wave, the maximum amplitude is found to be1...
01:50
|
- Due to economic reasons, only the upper sideband of an AM wave is tran...
03:11
|