User manual AKG PS 61

[. . . ] PSU 01 power supply for up to three Power Splitters and ten receivers. The PS 81 is identical to the PS 61 except that it operates in the UHF range and allows you to set up a multichannel system with up to ten SR 81 receivers. (The number of channels you can actually use simultaneously depends on local frequency allocation plans. ) The rack mountable Power Splitter provides antenna sockets for two RA 61 B or RA 81 B receiving antennas with built-in boosters and two sets of four antenna output sockets for up to four SR 61 or SR 81 diversity receivers. [. . . ] 1 Placement Reflections off metal parts, walls, ceilings, etc. Place the antennas near the performance area (stage). Make sure, though, that the transmitter will never get any closer to the antennas than 10 ft (3 m). There should always be a direct line of sight between the transmitter and antennas. 5 m) away from any equipment that may emit RF radiation such as lighting racks, fluorescent lamps, digital effects units, or PCs. When mounting the antennas on floor stands, be sure to proceed as follows: 1. use the supplied SA 43 stand adapter to mount the antenna on the boom of a boom stand. Pull the boom out all the way to one side to make sure the antenna will be at least 28 inches (70 cm) away from the stand. Extend the stand high enough to place the boom at least 5 ft. 3 Wall Mounting tenna is highest within an angle of ±35 degrees to ±50 degrees off its transverse axis. If you mount the antenna higher than 10 ft. (3 m) above the floor, make sure to aim the antenna to the performance area. 4 Connecting Antennas Do not allow cables to sag below the boom because this may degrade the reception quality. Lock the connectors by rotating them through 90 degrees CW. 5 CABLE ATTENUATION Switch on the Power Splitter rear panel to the position given in Table 1 for the length of antenna cable you are using. IMPORTANT: When daisy-chaining Power Splitters, set the CABLE ATTENUATION switch to the position given in Table 1 on the first Power Splitter only. Set the CABLE ATTENUATION switch on the other one or two Power Splitters to "12 dB". Power Splitter and AC Power The terminal may be damaged by the supply voltage across the output socket. IMPORTANT: It is imperative to connect receivers to these outputs in order to ensure that the Power Splitter will be powered correctly!Connect the other Power Splitter outputs to the ANTENNA inputs on the other receivers as shown in fig. Check that the AC mains voltage stated on the supplied AC adapter is identical to the AC mains voltage available where you will use your system. Using the AC adapter with a different AC voltage may cause irreparable damage to the unit. [. . . ] Make any connections that may be missing. Should one of the antenna cables be shorted, replace it with a new one. IMPORTANT: Also read the Instruction Manual for the PSU 01, particularly the section on selecting power voltages and warnings. To clean the Power Splitter surfaces, use a soft cloth moistened with methylated spirits or alcohol. [. . . ]