AN/PRC-153

The AN/PRC-153 is the Joint Electronics Type Designation System designation for the US military version of the Motorola XTS-2500i secure handheld 2-way radio, known as the Integrated, Intra-Squad Radio (IISR) within the US Marine Corps. Its intended purpose is squad-level communications during urban warfare. The USMC ordered 60,000 radios to be used until replaced by the more complex Joint Tactical Radio System (JTRS) cluster 5 spiral 2 radio in 2013. However, JTRS was cancelled in October 2011, and thus the PRC-153 continues to serve. The IISR is a Motorola XTS 2500i with embedded encryption module to provide secure voice communications. The embedded encryption module is identical to that of the commercially available XTS 2500 modules, and supports DES and AES encryption algorithms. As such, it is not classified as a Controlled Cryptographic Item (CCI).

Specifications
Sources:

Frequency range: 380–470 MHz (UHF R1)

Power output: 2.5–5 watts

Antenna: omnidirectional, flexible monopole antenna mounted to radio body with SMA connector. 50Ω characteristic impedance.

Transmission Range: up to 5 miles on flat terrain, 1 mile with obstacles

Channels: 240 channels total, 12.5 or 25 kHz channel bandwidth

Operating modes: Analog voice (unencrypted only), IMBE digital voice (encrypted and unencrypted), digital text messaging

Programming: Windows PC-based Customer Programming Software via RS-232 or USB cable (all models), Front Panel Programming (FPP) (Model III only)

Encryption: Internal Type II COMSEC supporting AES, DES, DVP, ADP algorithms

Encryption key fill: CPS for software-based 40-bit ADP encryption, Key Variable Loader (KVL) for hardware-based algorithms such as AES, DES, etc.

Weight: 11 oz (transceiver only), 19.85 oz with NiCD (Nickel-Cadmium) battery

Dimensions: 6.00" x 2.30" x 1.50" (w/o battery or antenna)

Environmental exposure certifications: MIL-STD-810 C, D, E, F and IP67 ratings.