engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Physics Communication Systems Bandwidth of Signals and Transmission Medium
FM प्रसारण के लिए संचार आवृत्ति बैंड सीमा क्या है?
1
540 – 1600 kHz
2
88 – 108 MHz
3
54 – 72 MHz
4
840 – 935 MHz.