MIPRO AD-808 UHF 4-Channel Active Antenna Combiner User Guide

AD-808
UHF 4-channel Active Antenna Combiner
User Guide

UHF 4-channel Active Antenna Combiner

Part Names, Fig. 1

1. Power Switch & Indicator
2. Input Signal Indicators
3. Output Signal Connector
4. Input Signal Indicators
5. DC Input Socket: Input socket for 12-15 Volt DC power. Polarity of the central pin in the socket is positive (+).

Operational Instructions

1. Installing the Input Signal, as shown in Fig. 2
   Connect and fasten MI-909T output to AD-808 input via a coaxial cable having a TNC connector on both ends. Up to 4 MI-909T transmitters can be connected. Ascertain coaxial cable length should be minimalized.

2. Installing Antenna, as shown in Fig. 3
   Install the original coaxial antenna from the transmitter into the output connector. For best-transmitting performance, ascertain the transmitter antenna and MI-909T transmitter are matched and have the same frequency band codes.

3. Installing Extension Antenna, as shown in Fig. 4
   MIPRO AT-70W, AT-90W or MS-90 wideband directional transmit antenna can be used along with MIPRO MS-90 antenna wall mount bracket or general tripod microphone stand and connected by coaxial cable. Select quality coaxial cable and ascertain the length should be minimized and height of the antenna installation should be as high as possible and away from obstacles for optimal performance.

4. Power On: The power LED indicator will be lit once power is turned on. When the input signal strength is greater than +6 dBm, the Input Signal Indicator will remain lit.

Notes

1. This device works in the frequency range of 470 MHz — 960 MHz. Any MI-909T transmitter within this frequency range will be compatible with this device. However, ascertain the detachable transmitting antenna and MI-909T transmitter have the same frequency band code (same frequency range) for optimal transmission. We recommend it is paired with MIPRO AT-90W wideband transmitting and receiving log antenna for optimal performance.
2. When using coaxial cable, ascertain a quality 500 coaxial cable is used (RG-58 cable or better) and the cable length should exceed 10 meters for optimal performance.

MIPRO Electronics Co., Ltd
Headquarters: No. 814, Beigang Rd., Chiayi City 600079, Taiwan
Tel : +886.5.238.0809
Fax : +886.5.238.0803
www.mipro.com.tw
[email protected]
All rights reserved. YM 021/04 Do not copy or forward without prior approvals MIPRO. Specifications and design subject to change without notice.

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