User's Manual

Installation Guide
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Please note the following during installation:
• The CPE accommodates a mounting pipe with of 1-1/4” to 2-3/8” in diameter and
the CPE and mounting pipe require a minimum of 12 inches clearance on all sides
for optimal performance.
• The CPE should be located as close to the edge of the building nearest the hub as
possible. When the CPE is mounted towards the middle or back of the building,
the incoming wireless signal may be reflected by the rooftop impairing the
performance of the link. The CPE must be placed high enough on the rooftop to
provide the required Fresnel zone clearance.
• When using RG-6 cable the power adaptor must be located within 300 feet of the
CPE to ensure a minimum input voltage of 12 VDC at the CPE.
• The CPE should be mounted at least 2 feet below the highest point at the site to
minimize the likelihood of lightning strikes.
• The CPE should be properly grounded for lightning protection to all applicable
national (National Electric Code, sections 820-33 and 820-40) and local codes.
• An SCTE compliant surge protector should be placed between the CPE and
customer cable modem.
• Be sure to leave sufficient slack for final CPE alignment and ensure that the cable
runs directly downward from the connector to avoid water running down the cable
and into the F connector.
Align the CPE
Point the CPE’s antenna (located behind the radome) at the Hub. The elevation is
adjusted using the elevation alignment bolts and the azimuth is adjusted using the
mounting bolts.
 Connect a voltmeter to the RSSI jacks on the back of the CPE.
 Pan the CPE from side to side (horizontally) and tilt it up and down
(vertically) while observing the RSSI DC voltage on the meter. The goal is
to obtain the maximum reading within the recommended operating range
of between 2.5 and 4.25 volts which corresponds to a receive signal level
of between -70 and -40 dBm.
 Tighten the elevation and mounting bolts.
Verify CPE output signal at input to cable modem
Using a spectrum analyzer or digital signal level meter, verify that the downstream
channel power level is within the desired range for the cable modem. If it is not, correct
per the following table: