Adaptrum ACRS20F Users Manual

ACRS 2.0 User Manual

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FCC Regulatory Information

This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.

Part 15 TV Band Device Notice

This equipment has been tested and found to comply with the rules for TV bands devices, pursuant to
part 15 of the FCC rules. These rules are designed to provide reasonable protection against harmful
interference. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio
communications. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:

(1) Reorient or relocate the receiving antenna.

(2) Increase the separation between the equipment and receiver.

(3) Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.

(4) Consult the manufacturer, dealer or an experienced radio/TV technician for help.

Caution: Exposure to Radio Frequency Radiation.

To comply with FCC RF exposure compliance requirements, for fixed configurations, a separation
distance of at least 40 cm must be maintained between the antenna of this device and all persons.

This device must not be co-located or operating in conjunction with any other antenna or transmitter.

2

Introduction

General Specifications

Optional external antenna connector

SMA Female

Data/Control

10/100 Ethernet

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.

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

Uplink/Downlink Ratio Any

Transmit Power 100 mW conducted

Channel Bandwidth Efficiency 94 percent

Adjacent Channel Emission < -55 dBc

Receiver Sensivity

(6 MHz Channel)

Interface Specifications

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)

1 Mbps – 16 Mbps

e.g. 1:1, 1:3, 4:1

Physical Dimensions 8.5 inches x 7.5 inches x 1.5 inches

3

Electrical and Mechanical Specifications

Supply 48 V PoE

Weight 3.6 LB

Table 1: Adaptrum ACRS 2.0 system specifications.

ACRS 2.0 radio has a fully enclosed weather-proof aluminum construction as shown in the
following pictures. There are status 4 LEDs on the front and an SMA antenna port and an Ethernet port
on the back. The unit is powered through Ethernet and there is no separate power connector. The last
picture below shows an example pole-mount installation. Both the base and the client stations use the
same radio unit.

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