User Manual

3
Introduction
ACRS 2.0 is the second generation Adaptrum cognitive radio system covering spectrum bands from
400 MHz to 1 GHz. Although capable to operate in other spectrum bands below 1 GHz, Adaptrum ACRS
2.0 is specifically designed to operate in the UHF TV Band (470 MHz – 698 MHz), as TV Band Devices
compliant to the rules specified in CFR 47 Part 15 Subpart H. To be rules-compliant, ACRS 2.0 systems
must operate as Fixed TV Band Devices and must be professionally installed. ACRS 2.0 system
specifications are shown in the following table.
General Specifications
Regulatory Compliance FCC Part 15 Subpart H
Technology TDD OFDMA
Network topology Point to Multi-Point
Mobility Support Nomadic & Vehicular up to 40 m/s
Frequency Range 400 MHz – 1000 MHz
Channel Bandwidth Flexible up to 10 MHz
Supporting 6, 7, 8 MHz TV channels
Aggregated Layer 2 Data Rate
(Uplink + Downlink) / 6MHz
1 Mbps – 16 Mbps
Uplink/Downlink Ratio Any
e.g. 1:1, 1:3, 4:1
Transmit Power 100 mW conducted
Channel Bandwidth Efficiency 94 percent
Adjacent Channel Emission < -55 dBc
Receiver Sensivity
(6 MHz Channel)
Level SNR Data Throughput
-98 dBm 3.5 dB 2.7 Mbps (QPSK 1/2)
-90 dBm 11.5 dB 7.1 Mbps (16 QAM 2/3)
-81 dBm 20.5 dB 12 Mbps (64 QAM 3/4)
Interface Specifications
Optional external antenna connector
SMA Female
Data/Control
10/100 Ethernet
Electrical and Mechanical Specifications
Supply 48 V PoE
Physical Dimensions 8.5 inches x 7.5 inches x 1.5 inches
Weight 3.6 LB
Table 1: Adaptrum ACRS 2.0 system specifications.