User manual ELECTRO-VOICE 627 DATASHEET

[. . . ] 3 BODYPACK TRANSMITTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 FRONT PANEL FEATURES DISPLAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 POWER SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SQUELCH ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The line level output is adjustable with a small screwdriver (included). ANTENNA CONNECTORS The antenna inputs utilize TNC connectors that provide solid mechanical and electrical connections. POWER INPUT The MR3000 will operate from the supplied ac adapter or any other battery, filtered supply or power pack that can deliver 12 15 volts AC/DC, 300 mA. SYSTEM SET-UP AND OPERATION To prepare the 627 System for operation, you should: 1. Connect the power supply adapter to an AC outlet that will supply 105 to 125 volts AC, 60 Hz. Other power supply adapters are available for 210 240 volt, 50 60 Hz operation. Make sure that you have the correct power supply for your locality. Connect the MR3000 to your audio system using the appropriate connector on the rear panel. It is preferable to use the 3-pin XLR connector since its balanced circuitry minimizes the potential for electrical interference and can be used with long cable runs. Switch on the receiver with the front-panel power switch. Attach either the supplied ¼-wave antennas or two externally mounted antennas to the antenna connectors on the rear panel of the MR3000. To minimize the potential for dropouts, please observe good antenna placement. When the transmitter is turned on, the RF meter on the receiver should be illuminated in the green range to verify it is receiving a strong signal. When the transmitter power switch is turned on, the red battery light will flash one time if the battery is good and has adequate strength. If the red light does not flash or stays on continuously, the battery is weak and should be replaced. RACK-MOUNT INSTALLATION The MR3000 is supplied with rack mounts for single and double mounting in a standard EIA 19 equipment rack (see Figure 6). For rack mounting a single unit, a long and short ear are used. For dual side-by-side mounting, use the short ears and the mid sized brackets from two MR3000s as shown. 1. Align the mid-sized brackets (item #2) with the holes on the adjacent sides of each unit. Insert an additional screw (provided in the parts pack) into the remaining holes. Tighten all screws securely. Figure 6 3. Place the two assemblies side-by-side with the mid brackets together. [. . . ] If you remote-mount the antennas, attention should be paid to the type and quality of the antenna cable. For cable runs longer than 25-ft (7. 6 M), special low-loss cables should be used. Figure 10 Figure 9 If antennas are remote-mounted, separating them 6 feet (1. 8 M) or more and keeping them at least 2 feet (. 6M) from other barriers will improve performance (see Figure 11). If you are remote mounting the antennas and require strong signal over a large area, consider using highly directional antennas such as a log-periodic. The LPA500 available from Electro-Voice is tuned for frequencies from 450 900 MHz page 6 627 OWNERS MANUAL Figure 12 These cables are available as accessories (see accessories listing). [. . . ]