uhf tacsat /dama multi-service tactics, techniques ... - UHF-Satcom.com

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Figure I-5. Over-the-Horizon (150 to 10,000 kilometers) System/Mode Decision Matrix
5. Description of UHF TACSAT Capabilities
The following are commonly used definitions.
a. Bandwidth.
(1) Narrowband. Narrowband describes a low-capacity voicedata
communications circuit, path, or channel. This usually implies that the channel is
capable of carrying a signal bearing data at a rate of 2.4 kilobits per second (kbps) or
less.
(2) Wideband. Wideband describes a medium-capacity voice/data
communications circuit, path, or channel. This usually implies that the channel is
capable of carrying a signal bearing data at a rate greater than 2.4 kbps and up to 64
kbps.
b. When speaking within the context of communications through 5-kHz and 25-kHz
channels of the UHF satellites (per the terminology of MIL-STD 188-181B for singlechannel
non-DAMA UHF SATCOM), communications up to 9.6-kbps in 5-kHz channels
are called narrowband channels; communications up to 64-kbps in 25-kHz channels are
called wideband channels.