'Analog radio systems' presentation slideshows

Public Safety Radio System Radio Systems 101

Public Safety Radio System Radio Systems 101. Public Safety Radio Bands. VHF-Low Band: 25 MHz to 50 MHz VHF-High: 138 MHz to 174 MHz UHF: 408 MHz to 512 MHz 700 MHz 800 MHz 4.9 GHz. Why is this a problem?. Radios only operate in one band! Multi-band radios exist but are expensive

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