Technical_Requirements_-_Microwave_Comms_Equipment_1.pdf

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7G--MICROWAVE COMMUNICATION EQUIPMENT
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140G0326Q0112
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This is a technical requirements document for 7/8 GHz microwave communications equipment used for real-time seismic data telemetry. The equipment will transmit digitized seismic data from remote collection points to primary and secondary data processing centers with minimal latency, operating within the NTIA-licensed 7.125–8.500 GHz band.

Power requirements specify three supply options (+24 VDC, -48 VDC, or AC via external converter) with consumption between 50–150W per indoor unit, including reverse polarity and overvoltage protection and support for redundant power supplies. Radio frequency specifications require support for 7 GHz (7.125–7.750 GHz) and 8 GHz (7.750–8.500 GHz) bands with variable channel bandwidths (150, 175, 300 MHz for 7 GHz; 300, 360 MHz for 8 GHz). The equipment must support multiple modulation schemes from QPSK through 4096-QAM with both fixed and adaptive modes. Data transmission capabilities include 10–940 Mbps per link with up to 5.64 Gbps per node, TDM support (DS1, DS3, OC-3), frame sizes up to 10,000 bytes bidirectional, and radio link aggregation via IEEE 802.1AX LAG and proprietary L1LA. Physical/environmental specifications require operation across 14°F to 131°F with 0–95% non-condensing humidity, SMA female connectors with threaded/lockable design, and networking capabilities including IPv4/IPv6, VLAN, SNMPv3, web-based HTTPS interface, remote over-the-air access, firmware updates, SSH access, and comprehensive state-of-health monitoring parameters.

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Requirements – 7/8 GHz Microwave Communications Equipment

This document describes the requirements for microwave radio communications equipment used for real-time seismic data telemetry. This communications equipment will transmit digitized seismic data from remote collection points to the primary and secondary data processing centers.

Data must be transmitted with minimal latency for rapid data processing. The target frequencies are in the 7/8 GHz NTIA-licensed band (7.125 – 8.500 GHz).

Power

• Power supply options shall include: +24 VDC, -48 VDC, or AC (via external converter)

• Power consumption shall range from 50W to 150W per indoor unit

• The power input shall be protected from reverse polarity and overvoltage and shall support redundant power supplies

Radio Frequency

• The supported frequency bands must include: 7 GHz (7.125–7.750 GHz) and 8 GHz

(7.750–8.500 GHz)

• The channel bandwidths shall be:

o 7 GHz: 150, 175, 300 MHz o 8 GHz: 300, 360 MHz

• The supported modulation schemes (fixed and adapted) shall include: QPSK, 16-QAM, 32-QAM, 64-QAM, 256-QAM, 512-QAM, 1024-QAM, 2048-QAM, 4096-QAM

Data Transmission

• The radio link shall support 10–940 Mbps of throughput per link and up to 5.64 Gbps throughput per node

• The radio link shall support TDM to include DS1, DS3, and OC-3

• The supported frame size shall be up to 10,000 bytes (bidirectional)

• The radio link aggregation shall be IEEE 802.1AX LAG and proprietary L1LA

Physical/Environmental

• Operating temperature range shall be 14oF to 131oF

• Operating humidity range shall be 0 – 95%, non-condensing

• Connection points shall be SMA female connectors

• All connectors shall be threaded/lockable to prevent accidental disconnection

Networking/SOH

• Radios must be IP addressable and support the following protocols: IPv4 and IPv6, VLAN (IEEE 802.1Q, 802.1ad), Flow Control (IEEE 802.3x), and OAM (IEEE 802.1ag /

ITU-T Y.1731)

• User interface must be web based with an HTTPS option and password protected

• Support the SNMPv3 protocol for sending SOH parameters

• Allow for remote “over the air” access to the user interface and allow users to adjust all software configurable settings

• Allow local and remote “over the air” firmware updates at no additional cost

• Allow a “back door” connection such as ssh

• Show common state-of-health (SOH), including but not limited to:

o Signal strength (RSSI) o Noise level o VSWR (or reflected power) o Number of packets sent/received o Packet transmit/receive quality (%) o Input voltage o Board temperature o History plots for signal and noise levels

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