User manual ELECTRO-VOICE APD4+
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Manual abstract: user guide ELECTRO-VOICE APD4+
Detailed instructions for use are in the User's Guide.
[. . . ] South, Burnsville, MN 55337
The APD4+ Amplified Antenna Splitter makes it possible to operate four UHF wireless diversity microphone receivers on four separate frequencies using only two antennas.
AMPLIFIED UHF ANTENNA SPLITTER
600-780 MHz 780-900 MHz
It also features a high degree of output isolation; a necessity in multi-frequency systems to prevent intermodulation. [. . . ] The 1/4-wave antennas that are supplied with EV wireless systems will provide adequate performance in some situations. Do not use 1/4-wave an ten nas for re mote mounting.
THIS END TOWARD TRANSMITTER
CLA 1/2 Wave Antenna Figure 4 Antennas
FA-500 1/2 Wave Antenna
If antennas are mounted directly to the APD4+, they should be configured as shown in Figure 5. Place the APD4+ with antennas in a location that is in direct view of the transmitters for best results.
90-260 VAC 50-60 Hz
OUTPUT A INPUT A 1 2 3 4 1
POWER OUT 2 3 4
OUTPUT B 1 2 3 4 INPUT B
Figure 5 1/2 Wave Antenna Mounting -4-
Antenna Placement for Optimum Range and Rack Mounting
For maximum range and when rack mounting, the antennas must be remotely located. The LPA-500 comes complete with a variety of mounting hardware and 10 feet (3 meters) of low loss coaxial cable. AB-2) with 10 feet of coaxial cable is available for 1/2 wave antennas. Antennas should be placed in a location with a clear "sig nal path" to the trans mit ter. This "path" should be as short and free of obstructions as possible. Obstructions, such as walls ceilings, and metal objects, will reduce range and performance.
Rack Mounted Antenna Connectors
Antenna cable connections may be made to the front of the rack mounted APD4+ by installing the adaptor cables supplied. Proceed as follows:
· · · ·
Re move the plug "knock outs" from the front panel. Tighten securely.
Insert the unit into a 19" rack enclosure and secure with screws (not supplied).
Front of rack antenna connec tors were designed to allow easier hook up of antenna ca bles. We do not rec om mend mount ing an ten nas di rectly to the con nec tors since per for mance may be de graded.
For best results, it is recommended that cable losses be kept under 4 dB. (Every 3 dB of signal loss results in a system operating distance reduction of 25%. [. . . ] 860031
AB-2 Combination Antenna Bracket and 10 foot (3 meter) coaxial cable with TNC connectors. 71138000
CLA Halfwave Antenna CLA-1 CLA-2 CLA-3 CLA-4 CLA-5 CLA-6 CLA-8 520-565 MHz 565-615 MHz 615-660 MHz 660-690 MHz 690-725 MHz 725-760 MHz 798-865 MHz
UAA-500 Low noise antenna amplifier, 500-900 MHz (antenna not included) Order No. [. . . ]
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