![]() ![]() A Bank consists of a group of Channels and you can program a frequency into a Channel. The Scanner's memory is used to store your frequencies which are usually arranged into Banks and Channels. The scanner may also have NFM (Narrow FM) and WFM (Wide FM) but for listening to aircraft transmissions you should only use the AM mode. When using a scanner you can either use the 'Search' mode where it searches through a range of frequencies until it stops when it finds a transmission for you to listen to, or use the 'Scan' mode where you store specific frequencies into the scanner and it will just scan through these frequencies until it finds a transmission.Ī scanner usually lets you set either AM (Amplitude Modulation) or FM (Frequency Modulation). Military aircraft band (UHF) - 225-400MHz AM.Civilian aircraft band (VHF) - 108-137MHz AM.You should also set the scanner to the AM mode (Amplitude Modulation). If you want to listen to military aircraft transmissions then you will need a scanner that has a frequency range of 225-400MHz. ![]() To receive civilian aircraft transmissions you will need a scanner that has a frequency range of 108-137Mhz.
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