Editing Automatic picture transmission (section)

=== Radio receiver ===
The bandwidth required to receive APT transmissions is approximately 34&nbsp;kHz. Most older scanners (police and fire type receivers) are the standard 15&nbsp;kHz bandwidth which were designed to support voice transmissions. Newer VHF general coverage receivers are equipped with multiple IF bandpasses; some are, but not limited to: 6&nbsp;kHz, 15&nbsp;kHz 50&nbsp;kHz & 230&nbsp;kHz(broadcast FM). Use of a receiver with too narrow a bandwidth will produce pictures that are saturated in the blacks and whites, as well as possible inversion. Too wide, and the noise floor of the receiver will be too high to acquire a good picture. For the amateur enthusiast, a computer controller receiver is the best option to allow the software to automatically tune and set the required modes for proper reception. There are also dedicated APT receivers made specifically for computer control and APT reception. Specifically, [[Icom Incorporated|ICOM]] PCR1000, PCR1500 & PCR2500 will produce excellent results. Searching on the web for "NOAA APT (RECEPTION or RECEIVER)" will produce a wealth of information on receivers, software, and antennas.