* Size: 6.25"W x 2.05"H x 10.16"L
    * TSO Compliance: RTCA DO-160 Ebv. Cat. A1D1/A/KPS/XXXXXXZBAAA
    * Altitude: -15,000 to 50,000 feet
    * Applicable Documents (COMM): RTCA DO-156, DO-157, DO-160
    * Frequency Tolerance (COMM): 0.0015% to meet DO-156 Class C & D
    * Modulation (COMM): 85% modulation capability with 90% limiting, less than 15% distortion at 85% modulation. Audio leveling circuit used.
    * Harmonic Content: Greater than 60dB down from carrier
    * Receiver Selectivity (COMM): (25Khz SEL) 6dB bandwidth +- 8.1kHz, 60dB bandwidth +- 20.0kHz; (50KHz SEL) 6dB bandwidth +- 14.5kHz, 60dB bandwidth +- 43kHz;
    * Spurious Response (COMM): at least 80dB down
    * Applicable Documents (NAV): RTCA DO-131, RTCA DO-153, RTCA DO-160, RTCA DO-195 and RTCA DO-196
    * VOR/LOC Sensitivity: 1/2 flag sensitivity 2uV (hard) or less (typically 1uV) on all channels
    * Spurious Responses (NAV): at least 80dB down
    * Audio Output (NAV): With a 1 kHz tone 30% modulation at least 100mW output into 500 ohm loads
    * LOC Centering: Two sigma limit +-7 uA as specified in RTCA DO-131
    * Applicable Documents (GS): RTCA DO-132, DO-160
    * Sensitivity (GS): 20uV or less for 60% of standard deflection
    * TSO Compliance (Converter): C40a (DO-153, Class I and II); C36c (DO-131, Class D)
    * Course Width (LOC): 90uA +-5uA for ddm of 0.993 ddm or 4dB
    * Weight: 4.75-5.50 lbs. depending on version
    * Temperature Range: -20 to +55C
    * TSO Compliance (COMM): Transmit C37b (DO-157, Class 4); Receive C38b (DO-156, Class C & D) / C38b (DO-156, Class A) 50 kHz selectivity
    * Duty Cycle (COMM): 10%, 4.5 minutes receive, 0.5 minutes transmit
    * Power Output (COMM): 10 watts minimum
    * Sidetone Output (COMM): Adjustable up to 100mW into 500 ohm headphones
    * Receiver Sensitivity (COMM): 2uV (hard) or less (typically 1 uV) for 6 dB S+N/N with 1000 Hz tone modulated 30%
    * Squelch: Automatic squelch with manual disable and carrier override
    * TSO Compliance (NAV): C36c (DO-131, Class D); C40a (DO-153, CAT A and B)
    * Frequency Tolerance (NAV): 0.0015% to meet DO-153, CAT A and B
    * Receiver Selectivity (NAV): 6dB bandwidth shall not be less than 16.0 kHz on each side. 60dB bandwidth shall not be less than 31.5 kHz on each side
    * VOR Course Accuracy: Two sigma limit 3 deg. as specified in RTCA DO-153
    * Audio Response (NAV): Less than 6dB variation from 350Hz to 2500Hz
    * TSO Compliance (GS): C34c (DO-132, Category II, Class D)
    * Stability (GS): 0.0015%
    * Inputs (Audio Amp): 2-500 ohm Auxiliary Inputs
    * Course Width (VOR): 10 deg. +-1 deg. externally adjustable
    * Input Impedence (Converter): 60 kohm for 0.5Vrms input (VOR