* Size: 1.75"W x 5.00"H x 11.77"L
    * Frequency Range: 118.000 - 135.975 MHz (optional 118 to 151.975 MHz version available)
    * Power Output: no less than 20 watts
    * TSO Compliance: C37b and C38b, RTCA DO-160 Env. cat. A2D2/A/MNO/EXXXXXZ/AB/A/AB/A
    * Design: All solid-state, electronically tuned by single-crystal digital frequency synthesizer
    * Power Requirements: 27.5 VDC; Receive-4 amp; Xmit-7 amp
    * Transmitter Modulation: NLT 85%, NMT 98%
    * Receiver Sensitivity: 2uV for no less than 6dB signal plus noise-to-noise with 1000 Hz tone modulated 30%
    * Receiver Weight: 3.5 lbs.
    * Temperature Range: -55C to +70C
    * Altitude: to 55,000 feet
    * Applicable Documents: RTCA DO-156, Class C and D; RTCA DO-157, Class A & B
    * Sidetone Output: Adjustable up to 100mW into 500 ohm load
    * Frequency Stability: +-0.0015%
    * Transmitter Microphone: Dynamic mike containing transistorized preamp or standard carbon
    * Receiver Selectivity: 60db(bandwidth) no less than 20.6 kHz with no less than 10.2 kHz each side.