ITCR Locomotive Radio User's Manual and Installation Instructions Applicable Model: 63020
ITCR Locomotive Radio User Guide Revision History Revision Date Summary of Changes 0.1 Initial Draft 0.2 8/29/2011 Add notices to user and general editing for FCC/IC Submission 0.3 9/27/2011 Expand Section 1, Rewrite Section2, insert new Section 3. 2 4/30/2013 Update frequency range.
ITCR Locomotive Radio User Guide Table of Contents 1. 2. 3. 4. 5. 6. Overview ............................................................................................................................. 1 1.1 Applicable Radio Models and Identifiers ................................................................ 1 1.2 General Description ................................................................................................ 1 1.3 Chassis ................................................
ITCR Locomotive Radio User Guide 6.2 Display Software and Firmware Revision Numbers.............................................. 13 6.3 Display Radio Identification Information .............................................................. 13 iv © 2013 Meteorcomm LLC. All Rights Reserved.
ITCR Locomotive Radio User Guide Table of Tables Table 2 Locomotive Radio Power Parameters .............................................................. 8 4/30/2013 © 2013 Meteorcomm LLC. All Rights Reserved.
ITCR Locomotive Radio User Guide 1. Overview This document provides information required for the operation and verification of the Meteorcomm Interoperable Train Control Radio Network (ITCR) Locomotive radio. 1.1 Applicable Radio Models and Identifiers This document applies to the Locomotive radio model listed below along with its regulatory identifiers. Model: 63020 FCC ID: BIB63020 IC: 1300A-63020 1.
ITCR Locomotive Radio User Guide 1.3 Chassis Locomotive radios are housed in electrically sealed metal cases. The Locomotive radio is LSI-rack compatible and its height is less than 6xMCUs. It weighs less than 22 lbs. All input/output ports are grounded and/or shielded. In addition, best engineering practices have been employed with respect to internal shielding, unit assembly and PCB design in an effort to minimize potential sources of unwanted radiated emissions. 1.
ITCR Locomotive Radio User Guide 2.2 Limiting RF Exposure Please refer to the RF Energy Exposure Guide packed with each radio for specific information regarding safe distances that must be maintained between personnel and energized transmitting antennas. The information in the RF Energy Exposure Guide is determined from FCC and Industry Canada rules that when followed, limit human exposure to radio frequency energy to acceptable levels.
ITCR Locomotive Radio User Guide • • • • • • antenna height per 47CFR §90.701 et. seq., or Industry Canada SRSP-512 §6.3 as applicable. Mobile antenna installations must adhere to the (general public) lateral separation distances in the RF Energy Exposure Guide supplied with each radio. Install antennas in accordance with the manufacturer’s instructions. Disable the transmitter when installing or servicing its antenna or transmission line.
ITCR Locomotive Radio User Guide 2.5 Equipment Modifications Caution: Any changes or modifications to this equipment not expressly approved by the party responsible for compliance (in the respective country of use) could void the user’s authority to operate the equipment. 3. Locomotive Transmitter Operation It is the responsibility of the licensee to operate this radio transmitter in compliance with the terms of the license and FCC or Industry Canada service rules for 220-222 MHz, i.e.
ITCR Locomotive Radio User Guide Please refer to Part 90 Subpart T and SRSP-512 for additional frequency use restrictions in Canadian and Mexican border areas. 3.3 Locomotive radiated power limits It is the responsibility of the licensee to comply with the effective radiated power limits based on operating frequency, geographic location, and effective antenna height set out in 47CFR Parts 80 and 90 or Industry Canada SRSP-512 §6.3, as applicable.
ITCR Locomotive Radio User Guide 47 dBm PEP and the minimum feasible feedline loss is 0.3 dB, then the radiated power is 46.7 dBm = 46.8 W ERP. Most if not all Locomotive installations will include an in-line 220 MHz band pass filter that adds 0.7 dB loss for a total loss of 1.0 dB. This filter prevents generation of intermodulation products in the Locomotive radio power amplifier by other cab top RF power sources, e.g., the 160 MHz voice radio transmitting antenna.
ITCR Locomotive Radio User Guide installation or maintenance begins. Table 1 Locomotive Radio Power Parameters Parameter Locomotive Radio Nominal DC Power Input Voltage 74VDC Operational Range 45-100Vdc Damage limit 120VDC Current Drain (while transmitting rated power) 7A peak max while transmitting into 50 ohm load 2.5A for max average operating current 4.
ITCR Locomotive Radio User Guide before or during RF testing by entering commands using XtermW or another terminal emulation program. 5.1 Equipment Required 1. 10A DC power supply at rated voltage of Locomotive radio, nominally 74 VDC. 2. Personal computer with ethernet network adapter and Meteorcomm XtermW or equivalent terminal program installed. 3. 30 dB 50W RF power attenuator. 4. Vector spectrum analyzer for power and frequency measurements. 5.
ITCR Locomotive Radio User Guide 5.3 Measure and Calibrate Reference Crystal Oscillator Frequency The instructions below allow you to change the factory calibration settings for the master reference oscillator crystal. To check the master reference crystal oscillator frequency calibration: 1. Open an XtermW session. 2. Put the radio into test mode by typing: dsp,watchdog,off dsp_mode,test 3. Reduce output power to approximately 2W by typing: cal,set,igain,-1000 cal,set,qgain,-1000 4.
ITCR Locomotive Radio User Guide To adjust the master crystal reference oscillator parameters: 1. First, check the factory default setting for the crystal reference parameter by typing cal 2. Note the value for “xo” in the cal factors table that is displayed. 3. At the XtermW command line, type: cal,set,xo,xx where xx is some value close to the original factory set value. 4. Use trial and error to determine the set point for the xo value to achieve the desired carrier frequency accuracy.
ITCR Locomotive Radio User Guide dsp_mode,test l1_test,stop l1_test,set,txmod,dqpsk l1_test,start,tx 2. View the calibration settings by typing: cal 3. Note the values for igain and qgain. They are normally matched. 4. Increase the output level by entering larger matched values or reduce output level using smaller matched values. Use cal command in between to verify the new settings. cal,set,igain,xxxx cal,set,qgain,xxxx 5.
ITCR Locomotive Radio User Guide 6. Operations This section provides commands used during normal operation of the Locomotive radio. 6.1 Restore Factory Settings To restore factory settings without cycling the radio: • At the XtermW command prompt, type: factory 6.2 Display Software and Firmware Revision Numbers To display what software and firmware versions are installed on your radio: • At the XtermW command prompt, type: rev 6.
