Trango Broadband M900S user manual Deployment, Site Selection, Command survey time antenna

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Deployment

Section 7 Deployment

Once you are familiar with the basic operation of the radios you are ready for deployment in the field. The deployment process consists of the following steps:

Site Selection

Site Survey

Channel Planning

SU Antenna Alignment

Link Management Commands

Site Selection

Proper site selection for your AP will help ensure a successful deployment. Site selection will depend on a wide variety of factors, but from the radio’s performance standpoint, please consider the following:

Path from AP to SU should provide as few obstructions as possible, thus it is advisable to place the AP as high as possible on a tall building or tower.

Ethernet cable limit is 300 feet from Ethernet device (router, switch) to the radio.

Radios require grounding for optimal performance.

AP provides sector coverage of 60ºazimuth and 60º elevation.

Consider nearby sources of interference that could degrade the performance of the radio. Mount radios as far from sources of interference as possible.

Perform a site survey to determine noise level and relative clarity of channels at chosen installation location.

Site Survey

Both the AP and SU provide a powerful on-board site survey tool. This tool will tell you if there is interference present in the 900 MHz ISM band.

Command: survey <time> <antenna>

In order to use the survey command, the radio must be in Opmode “OFF.” The survey can be performed for up to 10 seconds per channel (incrementing by 2 MHz), and for the horizontal polarization, vertical polarization, or an external antenna.

Prior to performing the site survey, place the radio in the installation spot and aim the radio in the desired direction.

After the specified period, the results of the test will provide you with a listing of each channel in the band, the average signal received, and the maximum signal received during the survey period.

In general you will be looking for frequencies with interference signal strength of –85 dBm or lower. If interference is present on various channels, it is recommended that you chose clean channels or alternate polarizations for your deployment. If it is not possible to use a clean channel/polarization combination, there are various methods available to mitigate the affects of interference. These methods include the use of the RFRX Threshold settings, or the use of external shields and external narrower beam antennas.

Trango Broadband Wireless — User Manual M900S Rev C

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Contents M900S MHz Wireless Broadband System Table of Contents Table of Figures Warranty Information Firmware Notifications PrefaceFCC Information CanadaIntroduction OverviewAuto-retransmit Feature ARQ SmartPolling & Bandwidth ThrottlingHardware Overview M900S AP and SU Hardware ComponentsConnections and Power Getting StartedRadio Management Concepts CAT-5Switch Settings Browser InterfaceBrowser Interface Login Web Browser System InformationCommand Line Interface Telnet ip address of radioTroubleshooting Basic Configuration via Browser Interface Configuring the AP’s Subscriber Unit Database SudbThis section you will Creating an SU in the SU Database Configure Other Basic AP Parameters Default OpmodeIP Address, Subnet Mask, Gateway Active Channel/PolarizationBasic Configuration via Browser Interface Configure Basic SU Parameters SU Basic SetupLED Summary LED SummaryRF Link Loopback Test Link ControlAdvanced Setup SU Ranging TestOther Key Parameters Site Survey Basic Configuration via CLI Access Point Basic SettingsAP Parameter Description Related CLI Command Set baseid baseidSet defaultopmode on or off Set defaultopmode on time secIpconfig new ip new subnet mask new Set apid apid 00-FF in HEXPower set minmaxdBm Sw 0 onoff default is onOn/off command Sw 3 onoff default is offSubscriber Unit Database Sudb Settings Sw 7 onoff default is onRemarks remarks Sudb add suid prreg device id suid SU IDSubscriber Unit Basic Settings Basic Configuration via CLI SU Parameter Description Related CLI Command Set defaultopmode on or offIpconfig new ip new subnet mask new Set baseid baseidAntenna h v e Sw 0 onoffSw 1 onoff Sw 2 onoffM900S Mounting Hardware Assembly Mounting HardwareAlternative Mounting Cabling and Grounding Considerations Standard Mounting Alternative MountingInstallation Notes Command survey time antenna DeploymentSite Selection AP Search and SU Antenna Alignment Example\Rssi Command for Antenna Alignment SU Alignment Using LEDsAP Search Link Management Commands Collocation and Channel PlanningSu ping su# Su su #Su linktest su# Su testrflink su#ARQ with Selected Repeat and Multirate Feature Radio Management Access Via TCP/IP Su password suid all rw ro new password new passwordManagement SU Management from APLoading Multiple SUs into the Sudb using Dload Command SnmpObjects for Monitoring and Control SU Bandwidth MonitoringAP Bandwidth Monitoring Snmp Setup Appendix a Command Set Reference Command Radio DescriptionCommand Radio Description Access Su ipconfig suid new IP new Command Radio Description Access Appendix B Specifications Radio Transmit SpecificationsReceiver Specifications Ethernet I/O Specifications Data Input/OutputPower Specifications Mechanical and Environmental Specifications GeneralConnectors/Indicators Standard External Power SupplyIntegrated Antenna M900S-SU and M900S-SU-EXT