The MX-300 NAV/COMM is designed to directly replace the RT328T and similar units

• Frequency Range: Comm - 760 Channels 118,000 to 136.975
• Nav - 200 channels 108.00 to 117.95 MHz Preselect channel storage capacity - 100
• Noise adaptive squelch with manual override

• Frequency Stability: +/- .003% -20C to 50C
• Transmitter Power: 12 +/- 4 watts min.
• Modulation: 85% minimum with limiting at 90%
• Sidetone: Adjustable to 40mw into 500ohms
• Receiver Sensitivity: 1.uV (soft) for 6db s+n/n or 1/2 flag Nav
• COMM Selectivity: 3db @ +/- 7.5 KHz; 50db @ 17.5Khz; 65db @ +/i 25 Khz
• NAV Selectivity: 3db @ +/- 15 KHz; 50db @ +/- 35Khz; 65db @ +/- 50KHz
• Audio Output: 5 watts into a 4 ohm speaker; 40mw into 500ohm headphones
• DEMOD Output: VOR adjustable from .25 to .75vrms