The 10 cm and 5 cm amateur bands have received miniscule interest during the past, primarily due to the lack of effective gear capable of operation in this range. The recent escalation of interest in satellite-TV terminals capable of operating in the 3.7- to 4.2-GHz range, however, shows great promise in ratifying that situation. Since many telephone companies utilize frequencies between 5 and 10 em for broadband relays of multiple voice links, evolutions may also provide a surplus of modifiable gear for radio amateurs.
