Wireless Main Station VHF with 4 pacs Transmit: 183.730 Receive: 207.800, 207.425, 206.800, 206.000 Transmit: 177.800 Receive: 212.000, 212.800, 213.425, 231.800 Transmit: 177.800 Receive: 207.800, 207.425, 206.800, 206.000 Input Power: 13.0 VAC RMS/300 mA with supplied adaptor or filtered 12 to 14 VDC/300 mA source Intercom Output: 50 mV (Low) or 330 mV (Hi) RMS into 300 ohm load typical (at rated deviation) Intercom Input (Gain Minimum): 300 mV RMS typical (for rated deviation) Auxiliary Output: 430 mV RMS into 600 ohm load typical (at rated deviation) Auxiliary Input (Gain Maximum): 60 mV RMS typical (for rated deviation) Local Headset Input: 2 mV RMS input nominal1.5 mV RMS input at compression (Dynamic) Local Headset Output: 32 mV maximum output into 600 ohmst Temperature Range: -4°F to 130°F (-20°C to 55°C) Dimensions: 15.75" W x 1.75" H x 10.5" D(40 cm x 4.5 cm x 26 cm) Weight: 4.5 lbs (2 kg) RF Frequency Range: 150-216 MHz RF Frequency Stability: Crystal Controlled, 0.005% RF Power Output: 50 mW Typical Modulation: FM, 3 KHz deviation.115 micro-seconds Pre-emphasis Transmit Antenna: 5/8-wave (supplied)SO239 connector on chassis Modulation Limiter: Internal Compressor Modulation Frequency Range: 300 to 5000 Hz ±2 dB Radiated Harmonics and Spurious Emissions: -45 dBC, Exceeds FCC Specifications FCC: Type Accepted Under Parts 90 and 74