An+prc158+manual May 2026
If you have just unboxed an AN/PRC-158, follow this sequence derived directly from the an+prc158+manual.
This manual is intended for unit-level mechanics. It covers: an+prc158+manual
Keyword Focus: an+prc158+manual
| LED Color | Pattern | Meaning | Action |
| :--- | :--- | :--- | :--- |
| Green | Solid | Radio ON, RX idle | Normal |
| Red | Solid | Transmitting | Check antenna SWR via DIAG menu. |
| Amber | Slow Blink | Crypto not loaded | Load TEKs. |
| White | Rapid Blink | Overheating | Reduce power to 5W or move to shade. | If you have just unboxed an AN/PRC-158, follow
The manual dedicates an entire appendix to power logistics. The AN/PRC-158 is power-hungry, especially on MUOS. ERR-12 (Time Slot Skew): Your internal clock is
Sleep Mode protocol: Instead of turning the radio off, press FNC > PWR > SLEEP. The radio consumes 50mA and wakes up via a timer or external PTT pulse. This is the only procedure to retain hop-sync while saving battery.
The defining feature of the PRC-158 is its integrated MUOS capability. MUOS utilizes a constellation of geosynchronous satellites. Unlike legacy SATCOM which requires the user to point an antenna at a satellite (often requiring them to remain stationary), MUOS provides "on-the-move" (OTM) communication.