equipment, this radio can operate in AM voice, or AM
secure voice.
AN/PRC-117
The AN/PRC-117 Full-Band Frequency-Hopping
VHF-FM Manpack Transceiver with integrated
COMSEC, shown in figure 2-25, operates in the 30-to
89.975-MHz frequency range and contains a built-in
COMSEC capability that is compatible with VINSON
KY-57/58 equipment.
Frequency-hopping is an advanced method of
ECCM (Electronic Counter-Counter-Measure). You
should remember that a standard FM transmission is
centered on a specific carrier frequency, which means
it can be easily detected, monitored, or jammed. In
Figure 2-25—Transceiver AN/PRC-117.
2-27
