An+prc158+manual 2021 Jun 2026

If you have just unboxed an AN/PRC-158, follow this sequence derived directly from the .

Ensure the latching mechanism clicks firmly into place to preserve environmental sealing under MIL-STD-810G requirements.

Never disconnect a fill cable while the "ACTIVE" LED is blinking red. This corrupts the internal eMMC storage and requires a depot-level reformat. an+prc158+manual

Dual-channel system capable of simultaneous voice and data transmission.

[CH 1 ANT] [GPS ANT] [CH 2 ANT] +----------------------------------------+ | [LCD DISPLAY: CH1/CH2 STATUS & MENU] | | | | [1] [2] [3] [VOL +] [CHAN +] | | [4] [5] [6] [VOL -] [CHAN -] | | [7] [8] [9] | | [*] [0] [#] [PRESET] [MENU] | +----------------------------------------+ [AUDIO 1] [DATA/FILL] [AUDIO 2] Front Panel Connectors If you have just unboxed an AN/PRC-158, follow

For vehicular or base station setups, connect an external 19–34 VDC cable source to the primary power input port. Programming and Key Fill Operations COMSEC/TRANSEC Key Loading

Connect the SKL fill cable to the data/fill port on the front panel of the radio. This corrupts the internal eMMC storage and requires

Select Acquire Network . The radio will search for the nearest geostationary MUOS satellite. Monitor the Signal to Noise Ratio (SNR) meter on the display. Once registered, the status indicator will switch from Searching to Registered . 6. Troubleshooting Common Field Issues Probable Cause Corrective Action Radio fails to power on Dead or unseated battery Swap battery; clean silver contacts on the battery box. "Crypto Fault" displayed Expired or corrupted TEK/KEK

Use the radio's keypad to enter the COMSEC/KEY menu.

The AN/PRC-158 is built to meet the highest military standards. It is certified for NSA Type 1 security for voice and data communications up to the level using Harris Sierra™ II software programmable encryption. Furthermore, the system meets all JTRS COMSEC (Communications Security) and TRANSEC (Transmission Security) requirements, ensuring that data remains protected against interception and jamming in contested environments.