The current satellite picture transmissions are frequency modulated with a deviation of approximately 30 KHz at a base frequency of approximately 137 MHz. Specific frequencies can be found in the FREQUENCY LISTS.

Thus you will need an FM radio, scanner or other receiver with a frequency range covering 137 MHz. This radio will need to have a fairly broad IF bandwidth of at least 30 KHZ.

Most common scanners do not have this broad of IF bandwidth since they usually receive utility type transmissions with a bandwidth of 12 KHz. Some receivers set up to receive the FM broadcast band have bandwidths of 150 KHz which is too wide.

If you use a receiver with the wrong bandwidth you will not receive the proper signal and the picture will not be acceptable.

You can modify some narrow bandwidth scanners or receivers to the above bandwidth. You can also buy receivers with these capabilities from many manufactures who specialize in this type of equipment. See the BIBLOGRAPHY.

The signals from these satellites are very weak and a preamplifier is usually required to boost the signal to the receiver. The same manufacturers listed in the BIBLOGRAPHY can supply preamplifiers.

In addition an antenna is required, the type of antenna can consist of a simple turnstile type which is not moved and is sutiable for local passes near the reception point. A tracking antenna, which allows tracking and reception of signals very low on the horizon, can enable capture of pictures at the line of sight maximum to be taken, in some cases that would allow a person to see passes covering the entire continental USA from their location. See the BIBLOGRAPHY for antennas also.