A communication system that transfers digital data on a fixed frequency
channel of a radio frequency band in the presence of interference from at
least one FHSS interference source includes a time diversity generation
circuit. The time diversity circuit compacts a duration of data frames
then replicate the time compressed data frames. The duplicated time
compressed frames of data are transmitted to a communication receiver
that has a time diversity data recovery circuit. The time diversity data
recovery circuit buffers the received compressed and replicated data
frames, evaluates whether each of the duplicated time compressed data
frames are received correctly. If any one of the duplicated time
compressed data frames is destroyed, the copy of the destroyed duplicated
time compressed data frame is used to recover the data frame.