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Section 12–Tower Mounted Ampliﬁ er Issues Remote Electrical Downtilt System Handbook

12-1 May 2009 Bulletin 639519 • Revision D

12.1 No Devices Found

• Verify that the TMA type supports AISG.

• If TMA type is E15S08P74, replace with TMA that supports AISG, or bypass TMA with AISG

home-run cable.

• Recycle power to PDU.

• Verify that smart bias tees and TMAs are properly oriented (misconnection to TMA can cause a

short on the coax).

• See Section 11 for smart bias tee issues.

Section 12

Tower Mounted Amplifier (TMA) Issues

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