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The 800 MHz frequency band is a portion of the electromagnetic spectrum, or frequency band, that encompasses 790–862 MHz.. Being a part of the spectrum known as "UHF Bands IV and V" (i.e. 470 MHz to 862 MHz) it was allocated by the ITU to Broadcasting as the primary user in Region 1 and was used for analogue television broadcasting before changing to digital terrestrial television in many ...
700 Lower SMH 85 699 – 716 729 – 746 30 1.4, 3, 5, 10 13 FDD 700 Upper SMH 777 – 787 746 – 756 −31 5, 10 14 FDD 700 Upper SMH 788 – 798 758 – 768 −30 5, 10 17 FDD 700 Lower SMH 12, 85: 704 – 716 734 – 746 30 5, 10 18 FDD 850 Lower 800 26 815 – 830 860 – 875 45 5, 10, 15 Japan 19 FDD 850 Upper 800 5, 26 830 – 845 875 ...
Professional wireless microphones used the 700 MHz band until 2010 when they were made illegal, but equipment still exists in use that may interfere with 3G and 4G technologies. [10] Due to immediate adjacency to channel 51 lower 700 MHz A block license holders were prohibited to use it within channel 51 station service areas.
Specialized Mobile Radio (SMR) may be an analog or digital trunked two-way radio system, operated by a service in the VHF, 220, UHF, 700, 800 or 900 MHz bands. Some systems with advanced features are referred to as an Enhanced Specialized Mobile Radio ( ESMR ). [ 4 ]
20 kHz channel steps, some low-power frequencies 35.020–35.980 MHz 20 kHz channel steps, some low-power frequencies 37.440–37.880 MHz 20 kHz channel steps, often used for power and water company communications 42.960–44.600 MHz 20 kHz channel steps, some low-power or itinerant frequencies 47.440–49.580 MHz 20 kHz channel steps
The Michigan State Police already operate on the 800 MHz band and the Hillsdale County Sheriff’s Office received funding from the state to make the transition already.
Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four bands (850/900/1,800/1,900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a phone one can travel internationally and use the same handset. This portability is not as extensive with IS-95 phones, however, as IS ...
“We have been discussing adopting 800-MHz radios since at least 2008, so that makes 16 years at a minimum.” ... Hillsdale County voters to decide on 800-MHz radio needs Aug. 6. Show comments ...