User's Manual

BDA TEST AND INSTALLATION PROCEDURE

1. INSPECTION

Open the enclosure of the bi-directional amplifier (BDA) and carefully inspect the inside

assembly of the unit.

Verify that all components are properly secured to the base of the enclosure, there are no

loose parts, and all interconnections are reliable. Carefully close the enclosure.

Unpack the outdoor and indoor antennas and inspect the content. Verify that there are no

loose parts or rattling in the antennas. Make sure that antennas are not deformed.

2. SITE INSTALLATION

2.1 "Donor" (outdoor) Antenna Installation

On the roof of the building choose the location of the "donor" Yagi antenna. Point the

antenna towards the "donor" site. Connect the mobile phone or spectrum analyzer to the

antenna using a short cable with type "N" connector on the antenna side and a proper

adapter on the test equipment side. Adjust the position of the antenna for maximum

reading. The average power level should not be below -90 dBm. Record the measured

data. Install the antenna following instructions from the antenna manufacturer.

CAUTION: Maximum Antenna gain shall be 15dBi.

A minimum separation distance of 65 centimeters

between the transmit antenna and nearby persons

must be maintained. If this separation distance is not

maintained, the device may not be in compliance with

FCC RF Exposure rules.

2.2 Surge Protector Installation

Connect the cable run to the antenna and pass it through the roof manifold. Inside of the

building find a location for the surge protector near the construction ground where it can

be reliably grounded.

Install the surge protector and connect the cables to both sides. Bring the cable run to the

BDA location. Using a spectrum analyzer or mobile phone, measure the signal from the

"donor" site. It is typically from 1 dB to 3 dB below the antenna output level. Exact loss

depends on the cable type and length of the cable.

CAUTION

Use caution working with the bi-directional amplifier.

Disconnect the 115 VAC from the amplifier prior to

inspection.

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BDA TEST AND INSTALLATION PROCEDURE 1. INSPECTION CAUTION Use caution working with the bi-directional amplifier. Disconnect the 115 VAC from the amplifier prior to inspection. Open the enclosure of the bi-directional amplifier (BDA) and carefully inspect the inside assembly of the unit. Verify that all components are properly secured to the base of the enclosure, there are no loose parts, and all interconnections are reliable. Carefully close the enclosure.
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.3 Indoor Antenna (s) Installation. From preliminary evaluation of the blueprints of the service area, the approximate locations of the indoor antennas must be established. The level of the signal at the boundary of the service area can be a guideline for the location of the antennas. Several parameters must be considered: a) The gain of the Omni antenna is 0 dBd. b) The free space propagation loss is approximately -60 dB per 100 ft.
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AGC in the uplink amplifier is factory preset at the gain that corresponds to the intermodulation products level of -13 dBm. If the signal level is low and AGC light is not "ON", slowly increase the gain of the downlink amplifier until the light will be lit. Back off the potentiometer just below the level when the light is off. Check the security of the installation and presence of the AC power. Amplifier is ready for operation. 3. REMOVE BI-DIRECTIONAL AMPLIFIER 3.1 Unplug the AC cord from the socket.