The transmitter produces a signal for search and rescue personnel to use in locating survivors of an aircraft water landing. The ultrasonically welded case is designed to protect the transmitter from the high external loads encountered during packing of the slide/raft device. The transmitter mounts securely onto a replaceable, independent battery unit.

The SRB produces a location signal on the 121.5 and 243.0 Mhz emergency frequencies.

SRB-10/11 Highlights:
• Small, Lightweight Profile
• Rugged Design
• TSO C-91(s) Approved
• Replaceable Battery Pack
• Replaceable Antenna Whips

Specifications:
Parts Numbers: SRB-10, P3-03-0029-010 - SRB-11, P3-03-0030-010
Tone Frequency: 700 Hz Sweep between 1600 and 300 Hz
Tone Sweep Rate: 2 to 4 per second
Operating Temperatures: 00 C to 400 C for 50 hours of operation
Operating Range: 100-280 miles (Subject to atmospheric conditions, receiver altitude, and receiver sensitivity)
Battery Operation Life: 50 hours
Battery Service Life: 3.5 years
Volume: 22.3 cubic inches
Weight: SRB-10 - 24 oz., SRB-11 - 27 oz.
SRB-10: Emergency Locator Transmitter Survival Type, Non- Reversible, Self-righting Raft - Slide/Raft Mounted, Single Antenna
SRB-11 Emergency Locator Transmitter Survival Type, Reversible Raft - Slide/Raft, Dual Antenna
Antenna: Flexible, Omnidirectional, Vertically Polarized, Field Replaceable, Whip-type Helix
Frequency: 121.5 Mhz and 243.0 Mhz
Modulation: Interrupted carrier at tone frequencies (A9)
Transmitter RF Output: 50 mw PERP