... MHz 100A10 mm Line of sight; sky- waves Telecomms Medium frequency MF 300 kHzA3 MHz 1 kmA100 m Ground waves Telemetry control, telecomms Low frequency ... For instance, the Global Positioning System uses only two frequencies within the L-Band (390A1550 MHz) which is a sub-band of the UHF band. ... VLF transmissions can travel for thousands of kilometres in this way and can reach almost any part of the world. ... FIGURE 31.9 A block diagram of a radio transmitter.
Title | : | Electronics Circuits and Systems (4th Edition) by Owen Bishop |
Author | : | Owen Bishop, Digital Design |
Publisher | : | Digital Designs - 1995 |
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