A satellite transponder switch (STS) maintains a table that maps set-top
boxes (STBs) to carrier frequencies. The STS receives a first request
from a first STB for a first transponder band and a second request from a
second STB for a second transponder band. The STS accesses a first
satellite feed and polarity based on the first request, and a second
satellite feed and polarity based on the second request. The STS
band-pass filters the first and second transponder bands from the first
and second satellite feed and polarity, respectively. The STS frequency
shifts the first transponder band to a first carrier frequency assigned
to the first STB and the second transponder band to a second carrier
frequency assigned to the second STB. The STS outputs a signal that
comprises the frequency-shifted first and second transponder bands to the
first STB and the second STB.