Axell BSR 3308 / PS NFPA Product Description and User’s Manual Digital Band Selective Repeater Product Description and User’s Manual for Axell BSR 3308-PS / BSR 3308-PS NFPA Doc PN 4000004131 Rev. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Copyright © 2014 Axell Wireless Ltd All rights reserved. No part of this document may be copied, distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language without the prior written permission of Axell Wireless Ltd. The manufacturer has made every effort to ensure that the instructions contained in this document are adequate and free of errors and omissions.
Axell BSR 3308-PS NFPA Product Description and User’s Manual About This Manual This Product Manual provides the following information: • Description of the Repeater • Procedures for setup, configuration and checking the proper operation of the Repeater • Maintenance and troubleshooting procedures Notice Confidential - Authorized Customer Use This document may be used in its complete form only and is solely for the use of Axell Wireless employees and authorized Axell Wireless channels or customers.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Compliance with FCC Note the following: This repeater can be operated as both a Part 20 and/or Part 90 Class B repeater. FCC Part 90 Warning Statement WARNING: This is NOT a CONSUMER device. It is designed for installation by FCC LICENCEES and QUALIFIED INSTALLERS. You must have an FCC LICENCE or express consent of an FCC Licensee to operate this device. This is a Class B signal booster.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Only for in-building applications One must be aware that FCC regulation mandate that this repeater is to be used only for in-building applications and thus feed passive or active DAS (Distributed Antenna Systems) accordingly. FCC RF Exposure Limits This unit complies with FCC RF exposure limits for an uncontrolled environment. This equipment can only be installed in in-building applications, driving passive or active DAS systems.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Compliance with FCC deployment rule regarding the radiation of noise Good engineering practice must be used in regard to the signal booster’s noise radiation. Thus, the gain of the signal booster should be set so that the EIRP of the output noise from the signal booster should not exceed the level of -43 dBm in 10 kHz measurement bandwidth.
Axell BSR 3308-PS NFPA Product Description and User’s Manual This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 30 cm between the antenna and your body. Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada.
Axell BSR 3308-PS NFPA Product Description and User’s Manual General Safety Warnings Concerning Use of This System Always observe standard safety maintenance of this product. Caution labels! Danger: Electrical Shock precautions during installation, operation and Throughout this manual, there are "Caution" warnings. "Caution" calls attention to a procedure or practice, which, if ignored, may result in injury or damage to the system, system component or even the user.
Axell BSR 3308-PS NFPA Product Description and User’s Manual grounded floor mats. Table of Contents 1 Introduction .................................................................................................................................. 1 1.1 Features .............................................................................................................................. 2 1.2 Repeater Models .................................................................................................
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.10.3 Load Restrictions .................................................................................................. 22 3.10.4 Summary Alarms Trigger Criteria ......................................................................... 23 3.10.5 BSR 3308-PS NFPA Installation Alarm Connections ........................................... 23 4 Initial Setup and Commissioning .......................................................................
Axell BSR 3308-PS NFPA Product Description and User’s Manual 1 Introduction The Axell BSR 3308 is a band-selective mini-repeater that supports the 800MHz band for public safety and commercial cellular 800 MHz band applications. The repeater is specifically designed for the operation of ESMR 800 MHz and is band selectable in the 800 MHz range [3 MHz, 10 MHz or 18 MHz bandwidth]. This allows setting the optimum pass-band for each of the rebanding phases without the need to change any hardware.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 1.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 1.2 Repeater Models Axell provides the following models for the Axell BSR SMR 800MHz PS Repeater: ORDERING INFORMATION Identification Description Part Number BSR 3308-PS BSR 3308-PS Band Selective 800 repeater, three (3MHz, 10MHz, 18MHz) GUI selectable filters, 33dBm Composite power, 85 dB gain. NFPA and IFC compliant Alarm Outputs. AC powering, Neutral colored case.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 1.4 NFPA Installation Architecture To meet the National Fire Protection Association (NFPA) requirements, power to the Repeater is provided via a UPS/±48VDC battery and the status of the UPS/battery, Repeater and DAS system (antennas) is monitored via alarm connections to the Fire Department Control Box.
Axell BSR 3308-PS NFPA Product Description and User’s Manual • No adjustments are required - the tuning procedure is accomplished automatically, thus saving work hours and equipment usage time for a “plug & play” foolproof deployment. • Uplink and downlink balance is preserved – a single adjustment is required for UL and for DL channels. If the gain of downlink path changes by some value, the uplink path is changed by the same value.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 1.6 Interfaces The following figure shows the interfaces on the BSR Repeater. NOTE: The interfaces described in this section are the same for all BSR 3308 models. Ethernet Dry contact NFPA alarms DC Power connection from bracket PS Donor antenna connections Service antenna connections DL and Power LEDs DC Input is model dependent (28VDC or ±48VDC) Orange LED Figure 1-2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 2 Antenna Requirements This chapter provides information on the specifications of the donor and service antennas suitable for operation with this repeater, on the installation requirements of the antennas and on the Repeater installation site and cable requirements.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 2.2 Service Antenna Requirements . WARNINGS!!! • The installer is held accountable for implementing the rules required for deployment. • Good engineering practice must be used to avoid interference. • Output power should be reduced to solve any IMD interference issues. 2.2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3 Installing the Repeater 3.1 Pre-Installation Requirements 3.1.1 Safety Guidelines Before installing the Repeater, review the following safety information: • Follow all local safety regulations when installing the Repeater. • Only qualified personnel are authorized to install and maintain the Repeater. • Ground the Repeater with the grounding bolt located on the external lower side of the Repeater).
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.1.4 RF Cable Installation Guidelines Required: • For all coaxial connections to/from the Repeater - high performance, flexible, low loss 50Ω coaxial communications cable. • All cables shall be weather-resistant type. • Cable length - determined by the Repeater installation plan. When calculating the cable length, take into account excess cable slack so as not to limit the insertion paths. 3.1.
Axell BSR 3308-PS NFPA Product Description and User’s Manual • NFPA installation – (if required) connect the power via the UPS (for AC models) or to a ±48VDC trickle charged battery (for DC models) (see 3.9). 9. Dry-contact alarms (this can be done at any time, before or after powering up the Repeater): • Standard (non-NFPA) installation – optional. • NFPA installation - connect the Alarms from the Repeater and (if required) from the UPS to the Fire Department Control module (see 3.10.5). 10.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.4 Unpacking Upon receiving the BSR 3308 unit, perform the following: • Examine the shipping container for damage before unpacking the unit. • Perform a visual inspection to reveal any physical damage to the equipment. • Verify that all of the equipment (listed below) is included (see also the following page). Otherwise contact Axell Wireless. BSR 3308-PS NFPA Repeater Ethernet cross-cable CD with documentations Mounting Bracket.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.5 Mounting the BSR 3308 3.5.1 Pre-Mounting Procedure 1. Choose the location of the Repeater on the wall according to the following criteria: • The location should be at normal eye level height, above ground. • Be sure to allow easy access to the Repeater for maintenance and on-site inspection. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.5.2 Installing the Mounting Bracket To install the mounting bracket 1. Insert the four wedge anchors (see item no. 2 in Figure 3-1) into the drilled holes and secure them with an adjustable wrench. 2. Remove the hex nut, spring washer and flat washer from each wedge anchor, revealing a screw from each anchor. 3. Insert a flat washer 28mm in diameter in each of the anchors (see item 7 in Figure 3-1). 4.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.5.4 Mounting the Repeater 1. Pick up the Repeater and align the Repeaters’ four installation holes with the Mounting Brackets’ pins. 2. Slide the brackets pins through the Repeater holes until the upper side is locked with the installation head nuts at the top of the bracket. See Figure 3-5. 3. Release the four captive screws locking the Repeater cover. Figure 3-4. Loosen Captive Screws and Swing Open Door 4. Swing the top cover open.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 6. Insert the clamps including the screws in to the upper orifices leading inside the Repeater. Figure 3-6. Locking Clamp 7. Using the Allen screwdriver (item 8 in Figure 3-1), tighten the hex screw of the clamp. 8. Insert two hex washer head screws (item 3 in Figure 3-1) including spring washers (item 4 in Figure 3-1) into the lower orifices of leading inside the Repeater. Upper orifice Upper orifice Lower orifice Lower orifice 9.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.6 Grounding NOTE: Refer to section 3.1.6 for the grounding requirements. WARNING! Do not use the grounding bolt to connect external devices. To ground repeater Connect main ground to Repeater grounding lug. Grounding lug 3.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.7.2 Verify Link between BTS and Repeater WARNING! Perform this procedure before connecting the antennas to the Repeater or powering on the Repeater. The Repeater should not be operated prior to the verification of the operating parameter in its installation environment.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.8 Antenna Connections CAUTION! Do not connect the antenna cables to the Repeater before verifying the installation parameters. DO NOT POWER-UP the Repeater without either the antennas being connected or the antenna connections terminated with dummy loads.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.9.2 BSR 3308-PS NFPA Power Connection NOTE: BSR 3308-PS NFPA Repeaters may be (if required) connected to the power source via a UPS. DC Input connection: 3.9.2.1 • AC model – from premounted AC/DC Converter. • DC model - from -48VDC trickle charge battery For AC repeater models: 1. Locate the AC power outlet, with at least a 6A slow blow fuse. 2. Connect the BSR 3308 AC/DC converter power cable to the UPS. 3.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.9.2.2 For DC repeater models: • Make sure to fully charge the ±48VDC trickle charge battery. • Connect the cable from a ±48VDC battery to the repeater DC Power port. NOTE: System power-up may take up to a few minutes. Figure 3-8. NFPA Battery Power Connections 3.10 Dry Contact Alarm Connections Notes: The alarms can be connected any time, before or after the system is powered-on. For an illustration of NFPA connections, see section 3.10.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.10.2 Alarm Connector Pinout Each alarm status is recognized by a separate wire-pair, where the colored wires are internally connected with a 4.7 K ohm resistor (serves as a pull up resistor to +5V. The following figure shows the Alarm connector pinout. Figure 3-9. Alarm Connector Pinout Pin No.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 3.10.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4 Initial Setup and Commissioning This section provides the setup procedures for the BSR 3308 Repeater. The Repeater is designed for simple plug-and-play operation with only minimal configuration requirements. Perform the setup procedure according to the following steps: 1. Open a local Web session to the Repeater (this requires communication parameters of the computer used). configuring the 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.1.2 Configure the Computer Network Parameters Configure the computer network parameters to communicate with the Repeater. Note that the procedure may vary slightly depending on the operating system installed on your computer. The following procedure is for Windows 7. To configure the computer’s network parameters: 1. Click the Start menu and choose Control Panel. 2. In the Control Panel, click Network and Internet. 3.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 6. The Internet Protocol Version 4 (TCP/IPv4) Properties dialog appears. NOTE: The Repeater is supplied with the default IP address 192.168.1.253. 7. Assign your computer an IP address in the same subnet, in order to communicate with the unit. 26 • In the IP address area: • Enter the IP address 192.168.1.x, where ‘x’ can be any number between 2 and 250 inclusive. For example, (192.168.1.9) • Define the subnet mask as shown (255.255.255.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.1.3 Login to the Repeater NOTE: The Repeater is factory assigned the address 192.168.1.253. Initial login is performed using this address; however it is recommended to make the necessary modifications according to information provided by your network administrator. To login to the Repeater 1. Open a standard Flash-enabled browser (e.g. IE or Firefox). 2. In the address line, enter the IP address of the Repeater. http://192.168.1.253 .
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.2 Navigating the Web GUI Application This section describes how to navigate the Web Management application. The Web Access interface provides three groups of options, listed in the left side Topology Tree items: • CMU – Repeater level configuration and monitoring options such as log even monitoring, dry-contact configuration, software download and upload and and communication parameter settings.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.2.1 Operation Buttons The following main menu options are available. Common options CMU options Item Description / Values CMU, Axell 3308 or Users Shows the currently selected topology tree item. Send Common to all options. Click after completing the new data input and values update in any screen in order to insert the new values into the Repeater, and implement the changes Refresh Common to all options.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.2.3 CMU Pane and Tabs When the CMU item is selected in the Topology Tree, the following menu items are available. Item Description / Values Axell-CMU Info Shows Repeater level information such as SW and HW versions and identification number. In addition, enables setting minimum alarm levels. See section 5.2.1. Communication Configuration Used to set local IP communication and SNMP destinations. See section 4.3.
Axell BSR 3308-PS NFPA Product Description and User’s Manual To reduce the maximum power and gain NOTE: For IC applications, maximum DL power = 30 dBm and maximum UL power = 25 dBm. 1. In the topology tree, click Root and choose the Axell 3308 item. 2. Click the Control and Params tab. The corresponding pane appears. The following pane shows the Axell 3308 Control and Params tab. NOTE: Be sure to click Send when completing all the changes. 3. Verify that the RF Transmission Enable = ON.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.3.2 Defining the Sub-band The Filter Switch pane is used to select the required bandwidth and frequency shift. You may choose one of three bandwidth blocks: 18MHz or 10MHz or 3MHz. To define the sub-band 1. Click the Axell 3308 button in the tree pane and then click the Filter Switch tab. The following pane appears. 2. Select the appropriate filter Size according to customer frequency band: 18, 10 or 3MHz. 3. Select the Start DL Freq. 4.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5. You may fine tune the position of the filter by using the Shift options (frequency offset) to lower or increase the channel Start Frequency by up to 500 kHz. (Shift options). The selected deviation will be added to the positioning of the filter. For example, if you select 250 KHz shift for the 865 MHz start frequency, the DL and UL frequencies will be displayed as follows: DL Freq. range: 864.75 MHz-867.75 MHz 6. Click Send.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.3.3 Verify No Alarms are Generated After the required coverage is attained for the location, verify that no Alarms are generated before connecting to the main control center. To view alarms 1. Click the Alarms tab (alarms are described in 6.2.2. 2. Verify that all the indicators (except for the Panel Switch Mask that is not relevant) are GREEN in the Alarms tab 3. For a full description of the alarms, refer to section 06.2.2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.4 Configuring the External Alarms Any connected alarms (section 3.10) must be enabled and configured according to the instructions provided in this section. To configure external alarms 1. Click on CMU in the tree pane. 2. Click the External Alarms tab. The following dialog appears. External Alarms tab Click CMU 3. For each connected alarm: • Checkmark the Active checkbox. • Set the alarm Normal Mode as High or Low.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.5 Setting Date and Time It is important to set the correct date and time on the unit since this provides the timestamp for each logged event and alarm. To set the Repeaters date and time 1. Click on CMU in the tree pane. 2. Click on Date & Time in the menu bar. Click here The following dialog appears. 3. Set the date and time parameters and click on Set. 4. Click the CMU Reset button in the main menu (shown above). 36 Doc PN 4000004131 Rev.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.6 Configuring the System Parameters The Communication Configuration tab provides the IP and SNMP trap configuration parameters. This section describes how to access the dialog. The following sub-sections provide detailed information on each configuration option: 4.6.1 The Communication Configuration Tab To access the Communication Configuration tab In the left tree pane, click CMU.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.6.2 IP Address Configuration The Repeater simultaneously supports two IP addresses: a Local address and a DHCP address. A unique technology enables applying both types to the same Ethernet port. Both addresses may enable local and remote management. • Local IP Address – Static IP assigned by the user to the system. The default Static IP address is 192.168.1.253. It is highly recommended to preserve this setup.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 4.6.3 Configuring SNMP Trap Destinations You may configure traps to be sent to five destination addresses each time a fault is triggered. The traps are sent at the defined heartbeat frequency. To set SNMP Trap Destination parameters 1. In the Use Destination field, select the SNMP option 2. For each destination: • Enter the IP Address (where the IP addresses should be in the same subnet as the repeater).
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5 Administration 5.1 User Management This section describes how to perform the user management operations. By default, two users belonging to one of three authentication levels are defined on the Repeater. You may add new users, modify or delete existing users. 5.1.1 User Levels Three user levels are available: • Admin – has access to all administration and configuration options, including user management.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5.1.3 Adding Users NOTE: User name and password entries are case sensitive. To add a user 1. From the Tree Pane, select Users. The list of users is displayed in the User's Pane. 2. From the User's Pane, click Add User. The Add User dialog box is displayed. 3. Enter the Login Name – name used by user to login. 4. Type the user's First Name and Last Name – used to identify the user. 5. Select the User Role – access level.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5.1.5 Deleting a User To delete a user 1. From the Tree Pane Select Users. The list of users is displayed in the User's Pane. 2. Select the User to be deleted in the list. 3. From the User's Pane, click Del. An authorization message dialog box is displayed. 4. Click Yes. The User’s name is removed from the list. 42 Doc PN 4000004131 Rev. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5.2 Repeater Level and Band Level Information Viewing The Web GUI provides Repeater level information (via the CMU Info tab) and band level information (via the Band Info tab). 5.2.1 Repeater Level Information Use the CMU Info screen to view the hardware and software versions of the Axell Repeater and to assign the Repeater a recognizable name. To access the Band Information window 1. From the Tree Pane, select Axell3308. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5.2.2 Band Level Info Use the Repeater Information screen to view the hardware and software versions of the Axell BSR 3308 PS Repeater and to assign the Repeater a recognizable name. To access the Repeater Information window 1. From the Tree Pane, select Axell3308. 2. Select the Repeater Info tab. The relevant parameters are displayed. 44 Doc PN 4000004131 Rev. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5.3 Software Upgrade The software upgrade procedure consists of two steps: CMU and Band level upgrade. Depending on the version, you may be required to upgrade either one or both modules. This section describes both upgrade procedures. 5.3.1 CMU Software Upgrade The procedure described in this section is used to upgrade the repeater's CMU software. NOTE: This procedure is performed for every new management version.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5.3.2 Band Module Software Upgrade The procedure described in this section is used to upgrade the repeater's software (GUI and other software updates). To Upgrade the Repeater SW 1. From the Tree Pane, select Axell3308. 2. Select the Software Upgrade tab. The SW Upgrade screen shown below appears. 3. Browse for the relevant software provided. 4. Click on Upload. 46 Doc PN 4000004131 Rev. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 5.4 Backup/Restore of Repeater Configuration The BSR 3308 Web GUI management application enables the backup and restore of the repeater configuration files. The procedures are performed via the Backup/Restore tab. A number of configuration files can be stored on the Repeater for access at any time.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Button Description Repeater. 5.4.1 Backup of Repeater Configuration NOTE: The backed file will automatically be assigned a name according to the backup date and unit ID. The name cannot be modified while the backup file is saved onto the Repeater. However, before the backup procedure begins, the user may assign the file a recognizable name via the Remark field. To perform backup procedure 1.
Axell BSR 3308-PS NFPA Product Description and User’s Manual • Click the link in the File column. • Select the location in the Browse dialog. © Axell Wireless Ltd Doc PN 4000004131 Rev. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 6 Maintenance and Troubleshooting This section provides the maintenance and troubleshooting procedures for the Repeater. 6.1 Periodic Maintenance There is no periodic maintenance required for the Repeater. As long as it is installed in a shaded area not subject to extreme temperatures and with adequate ventilation, it will provide long term, problem-free operation. 6.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Whenever the LEDs are lit differently after the startup test is completed, they indicate a malfunction. Refer to the following paragraph for troubleshooting. LED Condition Description and Recommended Response DL LED Blinks Green A blinking green DL LED indicates a low input signal at the Donor antenna. As a result, the Mini-Repeater cannot provide a sufficient power output. Most probable cause signal at the Donor antenna.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 6.2.2 Alarms Screen This section provides a description of each alarm and of the indicator colors. 6.2.2.1 Alarm Description The following table provides a description of the alarms displayed in the Alarms screen.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Alarm Description and probable cause Recommendation System Mute Most probable cause – Repeater amplification is muted (automatically) Check the Repeater LEDs *Panel Switch Mask Not Applicable PLL Lock Detect Malfunction in UL/DL path. Probable cause: channeler module lock-detect failure Ignore Check the Repeater LEDs. Section above. 6.2.2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 6.3 Viewing Alarms Log The Alarms Logs screen lists the alarms (events) that have occurred. The CMU maintains log files listing every alarm triggered and in the Repeater. This screen provides an analysis tool to get information of any event that has occurred, its originator, when, if they return, and their type. NOTE: Set the clock in order to synchronize the events time of occurrence - click on Date & Time. To view the CMU log screen: 1.
Axell BSR 3308-PS NFPA Product Description and User’s Manual 6.4 Dry-Contact External Alarms The Axell-CMU Alarms screen displays the status of the activated external alarms. NOTE: See ext. alarms settings in section 4.4) for information on alarms triggering criteria and alarm connections and pins. • GREEN = Alarms status OK • RED = Alarm activated © Axell Wireless Ltd Doc PN 4000004131 Rev. 2.
Axell BSR 3308-PS NFPA Product Description and User’s Manual Appendix A: Specifications This section provides the electrical, mechanical and environmental specifications of the Axell BSR 3308 PS and BSR PS-NFPA. Electrical Frequency Range 1 Downlink Uplink 851 - 869 MHz 806 - 824 MHz 85 dB 85 dB Passband Gain Passband Ripple ± 1.5 dB ± 1.
