User's Manual

AXELL 3307D REPEATER
PRODUCT DESCRIPTION AND USER’S MANUAL
16 © Axell Wireless Ltd
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Requirements for grounding wires
• Protective grounding conductor - should be aluminum with cross-section 10AWG.
• Lug of the protective grounding conductor - should be aluminum
• Washers and screw - should be high Cr stainless steel, or 12% Cr stainless steel, or Cr on, Ni on
steel, tin on steel
• The protective grounding conductor is copper with a 10AWG cross-section.
To ground repeater
Connect main ground to Repeater grounding lug.
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Before connecting the antennas or power perform the following procedures described in this section:
• Verify isolation between the donor and mobile antennas
• Verify link between the BTS and the Repeater
3.8.1 Verifying Isolation between Donor and Mobile Antennas
The isolation between the Base/Donor and Mobile/Service antennas is critical especially for high
gain, outdoor applications.
• For proper operation of the Repeater, it is recommended that the isolation between the Donor and
Service antennas be at least 12dB higher than the Repeaters set gain.
• Insure proper vertical or horizontal distance separation between Donor and Service antennas
NOTE: Lower isolation can lead to high in-band ripple, oscillations and low signal quality.
Grounding lug