What type of signals does the MultiFAX system work with?
There are three major sources of WEFAX signals that the MultiFAX card can capture: • HF fax ground transmissions • Polar orbiting weather satellites (NOAA, Meteor, Feng Yun) transmitting APT (Automatic Picture Transmission) signals in the VHF band (137 to 138 MHz), • Geostationary weather satellites (GOES) transmitting at 1.691 GHz. The majority of MultiFAX users primarily receive the polar orbiting satellite signals for two important reasons: • The equipment is relatively inexpensive to purchase, make, or modify, and • The images acquired from the polar orbiters have the highest resolution (2-3 miles) of the three signal sources. More details on the various receiving systems are given below. 5) Where can I get a receiver for the polar orbiting satellites? There are two common methods for obtaining an APT receiver: • Purchase a receiver made specifically for receiving the polar orbiting satellites. This option will supply the highest quality images. MultiFAX sells the MF-R1–an excelle
