In analog frequency-division multiplexing, a supergroup is a block of 60 voice channels formed by combining five 12-channel basic groups. It occupies a bandwidth of 240 kHz, typically between 312 and 552 kHz. Telecom engineers used supergroups as the standard building block to assemble even larger mastergroups for long-haul microwave and coaxial transmission.
Heard on the job
The tech is patching supergroup 3 over to the new microwave link.
Related terms
T-carrier
A North American standard for digitally multiplexing voice and data signals.
Baseband
The original frequency range of a transmission signal before it is modulated onto a higher-frequency carrier wave.
Time division
The multiplexing of multiple signals over a single channel by assigning each a distinct time slot.