General Dynamics R2600 Series Operator's Manual page 302

IMBE vocoding
Excitation technique used in Project 25 radios
and test equipment to code digitized analog voice
signals before transmission and the reconstruct
analog voice signals on the receiving end.
decryption - process of converting cipher text to
plain text
– Improved Multi-Band encryption - process of converting plain text to
cipher text
key - a sequence of bits stored electronically in
the encryption and decryption modules.
key loader (KVL)- a device used to load an
electronic encryption key into a radio or other
device.
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