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Audio-Technica MCB4 Antenna Combiner allows the signals of up to four M3 Wireless In-Ear Monitor stereo transmitters to be combined onto a single transmitting antenna, reducing rack clutter. A wide-band unit that operates over the 440-865 MHz range, the MCB4 is designed to complement Audio-Technica M3 wireless in-ear monitor systems. It is also suitable for many other in-ear wireless systems (with external BNC antenna connections) operating within the 440 to 865 MHz range. The MCB4 provides one output and four isolated transmitter inputs. All RF connectors are BNC-type. Four jacks on the rear panel (controlled by the unit's power switch) provide 12V DC (center positive) to power as many as four transmitters operating on 12 volts at up to 600 mA each. Included with the unit are four DC cables appropriate for use with M3T (or like-powered) transmitters. The 12-volt supplies for powering transmitters are short-circuit protected. The unit features all-metal construction for extreme durability and protection from radio frequency interference.
Specifications: • Bandwidth: 440 – 865 MHz • VSWR: < 1.7:1 (within specified bandwidth) • System gain (per channel): 0 dB typical (within specified bandwidth) • Impedance: 50 ohms typical (within specified bandwidth) • Termination type: BNC Female (5 total) • Maximum RF input power: +20 dBm or 100 mW • Third order intercept point: Greater than 25 dBm • Power supply: Desktop switching power supply rated at 5A @ 12V DC or 60 watts. Input Voltage 100-240V AC via detachable IEC 320/C14 cable. Output is provided on an overmolded 3-pin Molex-style termination • Dimensions (Base unit only): 8.27" W x 1.80" H x 6.93" D (one rack space) (210.0 x 46 x 176.0 mm) • Accessories included: IEC 320/C14 power cable (for power supply), 5 – 22" RF (BNC to BNC) cables, 4-DC power cables, and a rack kit for frontmounting antennas and adaptation to a 19" rack.
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