Installation Instructions

5
ACRS 1.0 system has been authorized for use with the supplied Kathrein CL-1469B UHF-TV log-
period antenna or Antenna Direct DB2E antenna or PCB Bowtie antenna. Only the following antenna
types can be used with the ACRS 1.0 system:
1) Log-periodic antennas with a gain of 10.15 dBi or less.
2) Bowtie antenna with backplane reflector with a gain of 11.8 dBi or less.
3) Print-circuit-board (PCB) omni-directional bowtie antenna with a gain of 2.3 dBi or less.
The antenna used with the ACRS 1.0 system must have well characterized gain. Antenna feed cable loss
should also be characterized.
The installer must ensure that the antenna assembly meets the following requirement:
Antenna EIRP – Feed Cable Loss – Attenuator Setting = 7 dBi
Here the “Attenuator Setting” is a software programmable output attenuation setting for the radio
device that can be programmed at installation time (referring to Section “Post-Installation Setup” for
discussion on how to program the setting). As an example, when a 10 dBi EIRP antenna and a feed cable
with 1 dB loss are used, the “Attenuator Setting” must be programmed to:
Attenuator Setting = 10 dBi – 1 dB – 7 dBi = 2 dB
The “Attenuator Setting” programming must be done correctly during installation to ensure the
device is compliant with the CFR 47 Part 15 Subpart H rules.