What band is 400 MHz?
What band is 400 MHz?
The 70-centimeter or 440 MHz band is a portion of the UHF radio spectrum internationally allocated to amateur radio and amateur satellite use.
What band is 450 470 MHz?
450-470 MHz – Land-Mobile Radio band. Allocated for use by Police, Fire, Government, business, and other 2-way radio services. The term separation is used to describe the offset between a channel pair’s transmit and receive frequencies in a full duplex mode.
What is the range of ultra high frequency?
300-3000 MHz
Ultra High Frequency (UHF): 300-3000 MHz This is currently the most commonly used frequency band.
What frequency is a CB radio?
1.1 Citizens’ Band (‘CB’) radio operates in the 27 MHz band. It is a short-range radio service for both hobby and business use. It is designed to be used without the need for technical qualifications.
How far can 400 MHz reach?
~30 kilometers
Thus the typical ranges with around 400 MHz frequency range with 1 W transmitter power are up to ~30 kilometers and up to ~80 kilometers with 10 W transmitter power.
What band is 480 MHz?
Frequency Details
Unit | Frequency Lower | Frequency Upper |
---|---|---|
Gigahertz | 0.45 GHz | 0.48 GHz |
Megahertz | 450 MHz | 480 MHz |
Kilohertz | 450000 kHz | 480000 kHz |
Hertz | 450000000 Hz | 480000000 Hz |
What frequencies do military aircraft use?
Spectrum Engineering & Policy – Radio Frequency Bands Supporting Aviation
Frequency | Band Name |
---|---|
118 – 137 MHz | VHF Air / Ground Communications |
138 – 150.8 & 162 – 174 MHz | Fixed, Mobil |
225 – 328.6 & 335.4 – 400 MHz | UHF Air / Ground Communications (U.S. Military) |
328.6 – 335.4 MHz | ILS Glide Slope |
Is CB channel 9 still monitored?
Channel 9 is the universal CB emergency channel. In most areas, it is monitored by local law enforcement at all times, so please keep random chatter off this channel. Channels 17 and 19 are commonly used channels by truck drivers. 19 is often used by drivers going east or west; 17 by drivers going north or south.