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Trango Systems Access5830 User Manual

Wireless broadband system
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Access5830™
Wireless Broadband System

USER MANUAL

June, 2007
Revision H 3.0
Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0
page i

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Summary of Contents for Trango Systems Access5830

  • Page 1: User Manual

    Access5830™ Wireless Broadband System USER MANUAL June, 2007 Revision H 3.0 Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page i...

  • Page 2: Table Of Contents

    Objects for Monitoring and Control ............................... 47 SNMP Setup ....................................48 Appendix A HTTP Browser Interface ................49 Appendix B Command Set Reference ................57 Appendix C Specifications.................... 64 Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page ii...
  • Page 3 Table of Contents Trango Appendix D RF Primer ....................69 Glossary ........................74 Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page iii...
  • Page 4 Trango Table of Figures Figure 2-1: Typical Point-to-Multipoint Deployment..........................1 Figure 3-1: Access5830 Series Radios (AP and SU) .......................... 3 Figure 3-2: FOX Series Subscriber Units ............................3 Figure 3-3: Basic Components of an Access5830 Radio ........................5 Figure 3-4: Bottom of Access Point (and 5830 Series SU) ........................ 6 Figure 3-5: Components of FOX Series Subscriber Units........................

  • Page 5: Section 1 Preface

    Preface FCC Information Section 1 Preface This manual covers basic configuration and installation of the Access5830 Wireless Broadband System, and applies to the following radio part numbers: M5830S-AP-60 Dual-band Access Point with internal sectoral patch antenna M5830S-AP-EXT** Dual-band Access Point with connector for external antenna M5800S-FSU FOX5800 5.8 GHz Subscriber Unit...

  • Page 6: Section 2 Introduction

    The Access5830 system consists of two types of radios: Access Points (AP) and Subscriber Units (SU). The AP unit acts as a hub in a star configuration wireless multipoint network supporting up to 512 subscriber units. The AP delivers wireless broadband service (Ethernet connectivity) to one or more SUs according to a proprietary adaptive dynamic polling algorithm called SMARTPolling™.

  • Page 7: Smartpolling™ Overview

    SmartPolling™ Overview SmartPolling™ Overview One of the major advantages of the Access5830 system is the ability of the AP to handle multiple SU connections, and share the 10 Mbps data throughput very efficiently. Bandwidth allocation is managed by the AP’s SmartPolling™ algorithm according to provisioning rules set up by the system administrator. The AP polls each SU in a round robin format to determine if the SU has data to transfer.

  • Page 8: Section 3 Hardware Overview

    Section 3 Hardware Overview This section provides details about each radio in the Access5830 family. Each radio in the Access5830 family includes electronically switchable dual-polarized antennas (internal or external). All units are designed for outdoor installation, and are powered by Power-over-Ethernet (POE) for ease of installation. The Access5830 Access Point and Subscriber Units are single band radios, and provide channels of operation in the 5.8 GHz ISM band.

  • Page 9: Table 1: Access5830 Radio Description

    Note: The FOX5800 and FOX5800-D radios contain different integrated antennas. The FOX5800 includes a multi- element antenna that will not work properly when placed on an AD5800-25-D dish. * The M5580M-FSU (Atlas Fox) can operate with or without the AD5800-25 External Dish Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 4...

  • Page 10: Access5830 Ap And Su Hardware Components

    Access5830 AP and SU Hardware Components Each radio comes equipped with a power-over-Ethernet (PoE) J-Box, an AC adapter, and mounting hardware. The Access5830 APs (part #M5830S-AP-60, -AP-EXT) also includes a serial programming cable. Figure 3-3: Basic Components of an Access5830 Radio...

  • Page 11: Figure 3-4: Bottom Of Access Point (And 5830 Series Su)

    Figure 3-4: Bottom of Access Point (and 5830 Series SU) At the bottom of the Access5830 are two access ports: a twist-on weatherproof cable port for the RJ-45 Ethernet port, and an access cover (port plug for the RJ-11 serial port. Most configuration and management tasks can be performed through the Ethernet port.

  • Page 12: Fox Series Subscriber Units Hardware Components

    The FOX5800 and FOX5300 include hardware for wall or pole mounting (excluding wall mount screws and pole-mount hose clamps). The FOX5800-D is equipped with a dish/reflector mounting bracket. Figure 3-5: Components of FOX Series Subscriber Units Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 7...

  • Page 13: Figure 3-6: Exploded View Of Radio, Foam Insert, And Boot

    Figure 3-6: Exploded View of Radio, Foam Insert, and Boot TRANGO BROADBAND WIRELESS FOX5800 (TM) M5800S-FSU REV A FCC ID: NCYM5800SFSUD CANADA: XXXXXXXXXX Figure 3-7: Side View of FOX Series SU Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 8...

  • Page 14: Figure 3-8: Bottom View Of Fox Series Su (Boot Removed)

    Ethernet port, LED status lights, reset button, MAC address, and serial number. Pressing the reset button resets the unit’s IP address and password to factory defaults. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 9...

  • Page 15: Section 4 Getting Started

    Both green LEDs on the J-box should be lit, indicating power is present at the J-box as well as the radio. You are now ready to configure the radio via the Ethernet port. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 10...

  • Page 16: Opmode And Radio Management Concepts

    Furthermore, PCs connected to the AP can manage SUs over the wireless connection. However, a PC connected to an SU cannot gain direct TCP/IP access to the AP over the wireless connection. To fully understand radio management for the Access5830 system, it is important to be familiar with the concept of operation mode or “Opmode.”...

  • Page 17: Browser Interface

    Command Set Reference, or click the Help hyperlink. Figure 4-3: Browser Interface Login Page Type the password (default trango) and continue. This will bring up the radio’s System Information page. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 12...

  • Page 18: Figure 4-4: Web Browser System Information Page

    Help Page: The Browser Interface features useful Help pages that explain all listed parameters. To access the help pages click on the Help link. For a complete description on the use of the Browser Interface, see Appendix A. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 13...

  • Page 19: Command Line Interface

    IP address to factory default of 192.168.100.100, and password trango. The reset button can be useful if you forget or are unsure of the radio’s IP address/password. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 14...

  • Page 20: Serial Port On M5830 Series Radios

    4. While it is loading, you will be able to see this in HyperTerminal, press enter. 5. Type resetpassword. 6. Type main. This will continue the loader. The password is now trango. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 15...

  • Page 21: Section 5 Basic Configuration Via Browser Interface

    Evaluate Link Quality The Access5830 uses the concept of “association” to indicate that the APs and SUs are communicating. If all parameters are properly set, the AP will begin actively searching for the SUs in its SUDB. Once an active SU is detected, the authentication and association process will begin.
  • Page 22 Click Save and Activate changes. Important! Always remember to Save and Activate changes, or the SUDB will revert back to its previous state after a power cycle or reboot. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 17...

  • Page 23: Configure Other Basic Ap Parameters

    Opmode by telneting into it within the first 30 seconds after a power cycle or reboot. Active Channel/Polarization: The current channel and antenna polarization of the unit when in Opmode "AP." To configure the AP’s other basic settings, complete the following steps: Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 18...
  • Page 24 When the AP is in Opmode “AP,” the red LED on the bottom of the AP should be solidly lit, indicating that the radio is in Opmode “AP” and transmitting. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 19...

  • Page 25: Configure Basic Su Parameters

    Reboot System. (This will terminate your HTTP session.) At this point, if all of the parameters have been set correctly and the radios are within range, association between AP and SU will occur. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 20...

  • Page 26: Led Summary

    LED Summary At this point it is useful to learn about the various LEDs, which can be found on the bottom of Access5830 radios (both M5830 series and FOX series). These LEDs can assist the user in determining radio and link status.

  • Page 27: Rf Link Loopback Test

    Reports the distance from AP in miles, SU TX Power, SU temperature, and the received signal strength for uplink and downlink for the specified SU. Use a link budget calculator to analyze results. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 22...

  • Page 28: Advanced Setup Page

    Channel Table: Assigns channel numbers to actual frequencies of operation. Default settings allow the largest number of channels within the band, while still maintaining a 20 MHz channel width. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 23...

  • Page 29: Other Key Parameters

    This information can be used for tracking statistics when using SNMP. Remarks: User definable radio information (i.e. customer name, address of installation, and so on). Maximum 28 characters can be stored Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 24...

  • Page 30: Site Survey Page

    A channel is reported to be "Clear" if the peak and average are below the RF RX Threshold by more than 8 dB. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 25...

  • Page 31: Section 6 Basic Configuration Via Cli

    If you do not type the save ss command, the settings will be lost the next time the radio is rebooted or powercycled. The command save ss is equivalent to the updateflash systemsetting command. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 26...

  • Page 32: Table 2: Reference Table Of Basic Ap System Information

    MIR Threshold (On or Enable/Disable the Maximum set mir <on | off> Off) Information Rate (MIR) Threshold. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 27...
  • Page 33 Remarks User definable radio information remarks [<remarks>] (i.e. customer name, address of Example: installation, and so on). #>remarks 123 Elm Street Maximum of 28 characters can be stored. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 28...

  • Page 34: Subscriber Unit Basic Settings

    Determines the Opmode (“SU” set defaultopmode <su | off> or “OFF”) of the radio after reboot/power cycle. When the parameter is set to “SU,” the radio will progress into Example: Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 29...
  • Page 35 Counters: These are averages of wired Informational Parameter RF TX RF RX and wireless, transmit and Eth TX Eth RX received, traffic in Kbps. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 30...

  • Page 36: Subscriber Unit Database (Sudb) Settings

    Important! After updating the SUDB, type the command save sudb to save the SUDB. If you do not save, the SUDB file will revert back to its previous state after power cycle or reboot. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 31...

  • Page 37: Section 7 Mounting Hardware

    M5830 Series Radios (Access Points and Subscriber Units) Section 7 Mounting Hardware M5830 Series Radios (Access Points and Subscriber Units) Figure 7-1: M5830 Mounting Hardware Assembly Figure 7-2: Alternative Mounting Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 32...

  • Page 38: Figure 7-3: Articulation For M5830S-Ap With Mono Pod Mount (Not Supplied)

    Mounting Hardware M5830 Series Radios (Access Points and Subscriber Units) Standard Mounting Alternative Mounting Figure 7-3: Articulation for M5830S-AP with Mono Pod Mount (not supplied) Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 33...

  • Page 39: Fox Series Radio Hardware And Mounting

    NOTE: HARDWARE FOR MOUNTING BRACKET TO WALL NOT SUPPLIED BRACKET (ES-9232) 1/4-20 KEP NUT (2 PLACES) 1/4 EXT. TOOTH WASHER (H-9182)(2 PLACES) Figure 7-5: FOX Series SU Wall Mount Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 34...

  • Page 40: Figure 7-6: Fox5800-D/Atlas Fox With Mounting Cradle For Dss Dish Antenna

    0 º ELEVATION RECEPTION DISH MOUNTED ON MAST USING U-BOLTS FOX RADIO (M5800S-FSU-D / ATLAS FOX) MOUNTED ON DISH Figure 7-7: FOX5800-D / AD5800-25 Reflector Dish on Pole Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 35...

  • Page 41: Cabling And Grounding Considerations

    It is important to provide strain relief and drip loop for the STP Cat-5 cables. Strain relief holes are provided on the FOX5800 and FOX5300 mounting bracket for use with cable tie. Create drip loop and strain relief as shown below. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 36...

  • Page 42: Figure 7-10: Cat-5 Cable Strain Relief

    TO GROUND TWISTED DRAIN WIRES SHIELDED RJ45 SHIELDED CAT5 CABLE Figure 7-11: Grounding with Drain Wires of Shielded Twisted Pair Cat-5 Cable Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 37...

  • Page 43: Weatherizing

    Cat-5 cable will deteriorate over time if exposed to the weather (especially direct sunlight). It is recommended that installers place all Cat-5 cables inside conduit. Plastic conduit is sufficient. If metal conduit is used, it is not necessary to use shielded Cat-5 cable. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 38...

  • Page 44: Section 8 Deployment

    The survey can be run from either the browser or command line interface. See Example on following page: #> survey ism 30 h Running site survey for 30 seconds. Press any key to stop Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 39...

  • Page 45: Channel Planning

    Once the AP is installed and aligned in the correct general direction, it is time to install the SU. The hardware installation of the SU is similar to the AP, including considerations for line-of-sight, cable distances, cable type, weather sealing, and grounding. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 40...
  • Page 46 6 h — Here, the correct channel and AP ? -58 dBm polarization show the most energy, and the #> SU is able to discern the AP ID. #> ssrssi 6 h Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 41...

  • Page 47: Link Management Commands

    Displays the status of all SUs in the AP’s SUDB. SUs in the SUDB will appear by SU ID, and will be classified into one of the following status categories: Associated, Associating, and OFF. su live Displays a list of SUs that are currently associating with the AP (by SU ID). Example: Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 42...
  • Page 48 [ 3] peak -44 dBm avg -45 dBm **** [ 4] peak -44 dBm avg -45 dBm **** [ 5] peak -44 dBm avg -44 dBm **** [ 6] peak -44 dBm avg -50 dBm **** Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 43...
  • Page 49 AP. For thorough results it is recommended you run the command repeatedly for at least 1 minute or more to determine if packets are passing without error consistently over time. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 44...

  • Page 50: Section 9 Management

    60 minutes. To stop the broadcast sooner, type the command bcastscant stop. A complete description of these commands and many others can be found in Appendix B -- Command Set Summary. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 45...

  • Page 51: Tcp/Ip Su Management

    Managing AP from SU side of Network The Access5830 was designed to prevent users on the SU side of the network from accessing the AP via telnet or HTTP interface. If it is necessary for network administrators to access an AP from the SU side of the network the user must first telnet into a router, or similar device, located behind the AP, then telnet from the router into the AP.

  • Page 52: Objects For Monitoring And Control

    SNMP. Here are a few of these features: • Add/delete subscriber • Change channel • Set power • Set radio sensitivity Review the Trango MIB (trango_m5830sap_1p0.mib) for the complete listing of MIB Objects. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 47...

  • Page 53: Snmp Setup

    SNMP Setup Trango Broadband provides only the MIB portion of the SNMP Management system. The radios act as individual agents. It is up to the user to provide an SNMP Manager software from a third party vendor. Below is an example of the setup process for SNMPc from Castle Rock™.

  • Page 54: Appendix A Http Browser Interface

    HTTP Browser Interface Below are screen shots of most of the browser pages that manage the Access5830 system. The pages originate from the radio itself, so no additional software is needed on the managing PC other than a web browser. A Web Browser on a computer with an Ethernet connection to the radio and the IP address of the radio are all that are required.
  • Page 55 SU to SU communication must be on the same subnet! Remarks: User definable radio information (i.e. customer name, address of installation, and so on). A maximum of 28 characters can be stored. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 50...
  • Page 56 Activate Opmode: Turns Opmode to “AP,” to turn the Opmode to “OFF,” see Default Opmode. Reboot System: Reboots the system. Make sure all settings have been saved first. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 51...
  • Page 57 Activate Opmode: Activates radio's Opmode to "SU," which means it is transmitting. To turn a radio to Opmode "OFF," see Default Opmode. Reboot System: Reboots the system. Make sure all settings have been saved first. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 52...
  • Page 58 SUs are power leveled after changing this number (See Link Control page). Channel Table: Assigns channel numbers to actual frequencies of operation. Default settings allow the largest number of channels. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 53...
  • Page 59 MIR Threshold is activated, and the network traffic exceeds the MIR threshold, the AP will only serve CIR for all its SUs. When MIR Threshold is activated, and the network traffic does NOT exceed the MIR threshold, the AP will still serve MIR for all its SUs. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 54...
  • Page 60 A channel is clear if the peak and average power levels detected are equal to or 8 dBm below the RF Threshold. A similar page is available on the SU. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 55...
  • Page 61 SUs to attempt to bring the AP’s received signal strength as close as possible to the Target RSSI. Use the Advanced Setup page to adjust the Target RSSI. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 56...

  • Page 62: Appendix B Command Set Reference

    Normally the user will not need temperature threshold (in °C) of the to alter this setting. Example: heater 0 10 radio’s internal heater Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 57...
  • Page 63 AP when associated pppoeonly <on | off> Enables pppoe protocol Once enable, no management connection reboot reboot unit Both remarks [<str>] string length should be 1 to 28 Both characters Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 58...
  • Page 64 Opmode to be SU, <min> default Opmode is SU, 0 = 30 s = 0..10 set gateway [<ip address>] set or display gateway’s IP If IP is 0.0.0.0, or Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 59...
  • Page 65 SU that are in the “poweroff” group su priority display all SUs that are in the priority group su reboot <su-id> reboot one SU Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 60...
  • Page 66 Example: sudb modify 7 cir 516 entry sudb modify <suid> <su2su> <group-id, modify group ID for SU to SU Example: sudb modify 7 su2su 6 0..F> communication group 0: disabled group Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 61...
  • Page 67 AP, as long as AP is running current firmware. If AP is running older firmware, FOX Series SU will report temperature of 35° C. tftpd [<on | off>] enable or disable TFTPD service Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 62...
  • Page 68 Both 1. version number and date code 2. Firmware and FPGA version code 3. Firmware and FPGA image checksum Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 63...

  • Page 69: Appendix C Specifications

    LO stability: .00025% PLL stabilized (+/-2.5ppm) over temperature range Data Input Section Data Rate (User): Up to 10 MBps Sustained throughput Format: 10/100 BaseT IEEE 802.3 Ethernet compliant Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 64...
  • Page 70 FCC 15.207(a) AC conducted emissions 450Khz to 30 MHz FCC 15.205 Restricted bands (LO and harmonics)= 54 dBuV average @3 meters EN 301 489-1 Part 7.2 - RF Immunity Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 65...
  • Page 71 Per CFR47 part 15.205 LO Supression: Per CFR47 part 15.205 Symbol Rate: 1.375 MSPS Error Correction: None Modulation: 1 Mbps DBPSK for header, 11 Mbps CCK spread spectrum for payload Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 66...
  • Page 72 20 Volt DC Power adapter and J-Box supplied with product. Type: Linear wall mount transformer Input: 120 VAC Output: 20 VDC +/- 1 V Max current: 1200 mA Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 67...
  • Page 73 FCC 15.205 Restricted bands (LO and harmonics)= 54 dBuV average @3 meters M5800S-FSU Antenna Specifications Type: Patch Array Antenna Polarization: Vertical, Horizontal electronically selectable Range: M5800S-FSU: 4 Miles (LOS) from Access5830 AP with 10 dB fade margin Frequency: 5.7 to 5.9 GHz +15 ± 1 dBi Gain: Azimuth Beamwidth: 32°...

  • Page 74: Figure 9-1: Typical Radio System

    = 10 x Log (PmW/1mW) For example: 1 Watt = 1000 mW; = 10 x Log (1000mW/1mW) = 30dBm Attenuation Attenuation (fading) of an RF signal is defined as follows: Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 69...

  • Page 75: Figure 9-2: Attenuation Of An Rf Signal

    Radiates and receives equally in all directions (in azimuth and elevation). The following diagram shows the radiation pattern of an omni-directional antenna with its side lobes in polar form. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 70...

  • Page 76: Figure 9-3: Radiation Pattern Of Directional Antenna

    6 dB difference between received signal power and sensitivity. Normally a higher margin is desirable due to fluctuation in the received power as a result of signal fading. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 71...

  • Page 77: Figure 9-4: Multipath Reception

    The Fresnel zone is the area of a circle around the line of sight. The Fresnel Zone is defined as follows: Figure 9-5: Fresnel Zone Obstruction When at least 80% of the first Fresnel Zone is clear of obstacles, propagation loss is equivalent to that of free space. Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 72...

  • Page 78: Figure 9-6: Fresnel Zone Radius Calculation

    Where D1 and D2 are the distances from the terminals to the point of interest (in miles); and ,f is the frequency (in GHz). (Note: multiply results by 0.3048 to obtain a solution in meters) Trango Broadband Wireless — Access5830 User Manual Rev. H 3.0 page 73...
  • Page 79 It is the Point in a Point-to-Multipoint system. AP-Centric The Access5830 is a Point to Multipoint system with the access point being the single point and Subscriber Units being the multi-points. It is sometimes referred to as a cell system. See also Base Station.
  • Page 80 ISM Industrial Scientific Medical. FCC designation for various parts of the radio spectrum originally allocated for unlicensed use. For the Access5830, it refers to the 5.725 to 5.850 frequency band. Isotropic A theoretical antenna that radiates its signal 360 degrees both vertically and horizontally in a perfect sphere.

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