Table of Contents KNOWING YOUR TRX-900LT/LTS/LTH/LTHS .................................................................................................. 3 MAIN MENU ............................................................................................................................................................. 5 MAIN MENU .............................................................................................................................................................
WIRING DIAGRAMS ............................................................................................................................................. 23 Two Wire Microphone Configuration ............................................................................................................................................................................. 23 Three Wire Microphone Configuration.........................................................................................................
Knowing your TRX-900LT / LTS / LTH / LTHS The TRX900LTS is a stereo version of the TRX900LT transmitter. The LTS stereo transmitter can take two lavaliere microphones via the single 3-pin LEMO connector and transmit both sources over one frequency. The LTS stereo transmitter can also be set to operate in mono mode while the LT transmitter cannot. The TRX900LTH adds user selectable power outputs of 25mW and 125mW to the standard 50mW on the TRX900LT.
8. Menu / Play Key • Press - to access the next menu. • Press and hold while powering up will take you into the Extended Menu • Press it with the Card Key to Playback a segment 1 2 3 4 1. Power Switch 2. SSMA Antenna Connection 3. Media Slot Media Slot To insert a micro SD card, with the screen facing you, turn the card so the finger contacts are facing you and down toward the slot. Insert it into the slot and press it down until you here a slight click.
Zaxcom TRX900LT Series Manual Home Screen Main Menu Frequency 567.4 ZaxNet Status Transport Status RX STOP G Battery Level Input Audio Meter Gain Meter Indications -20, -10, 0 dBFS Frequency – This is the transmit frequency of the TRX-900LT/LTS/LTH/LTHS. If the transmitter is being used in RECORD ONLY mode “NOTX” will be displayed. ZaxNet Status • RX – The transmitter is set to receive ZaxNet timecode and commands. • TX – The transmitter is sending ZaxNet timecode and audio.
Zaxcom TRX-900LT Series Manual Main Menu Main Menu Navigating the Main Menu • Press the MENU Button to enter the menu. • To advance to the next menu press the MENU Button again. Exiting the Main Menu • To exit the menu at any time press and hold the MENU button for 1.5 seconds Audio Gain GAIN 20dB This menu sets the gain of the incoming audio. The meter indicates the audio signal displayed horizontally from left to right.
Zaxcom TRX-900LT Series Manual Main Menu Timecode Frame Rate TIMECODE 23.98 GEN 01:02:34:01 This menu sets the timecode frame-rate that will be recorded. The TRX-900 will lock to and record all standard timecode frame rates. • 23.98, 24, 25, 29.97DF, 29.97DF, 30 DF, 30 NDF Time Left TIME LEFT TIME USED 20H 4H This page displays the remaining time left on the card and the time already recorded on the card. This page will not be displayed if no card is present.
Zaxcom TRX-900LT Series Manual Extended Menu Extended Menu Navigating the Extended Menu • Press and hold the MENU key while powering up the unit. • Pressing the MENU key will advance you to the next menu item. Exiting the Extended Menu • Cycle the power Or • Hold down the MENU key to get back to the EXTENDED MENU home page then press the INC key. High Pass Filter Adjust HIGH PASS: OFF This menu turns on and adjusts the frequency of the high pass filter.
Zaxcom TRX-900LT Series Manual Extended Menu UHF Signal Format TX FORMAT: US MONO This menu adjusts the transmission format • US MONO - This format is used for mono transmission. It is used by customers in the US and other countries where a 200 kHz channel is legal. This setting will be used with 0=US on the Zaxcom ENG receiver or NORMAL on the QRX • STEREO -This format is used for stereo transmission of a TRX900LAS.
Zaxcom TRX-900LT Series Manual Extended Menu IFB Receive Mode RXMODE=RX This menu will allow the TRX to receive ZaxNet commands. • OFF – The transmitter will not receive any ZaxNet commands If this is set to OFF the next 5 ZaxNet menu items will not appear. • RX- The transmitter will receive ZaxNet commands NOTE: If the IFB RX to TX setting is set anything other than Normal you will not be allowed to set this setting to OFF.
Zaxcom TRX-900LT Series Manual Extended Menu IFB Receive to Transmit time IFB RX TO TX: NORMAL RX IFB RX TO TX: 0 SECS: TX ONLY IFB RX TO TX: 20 SECS The TRX will receive ZaxNet only and NOT transmit ZaxNet TC and audio. The TRX will transmit ZaxNet TC and audio only and will NOT receive wireless TC. Adjustable from 1 up to 20 Seconds.
Zaxcom TRX-900LT Series Manual Extended Menu ZaxNet IFB Transmit Frequency IFB TX FREQ: 2.420 This is where you set the ZaxNet transmit frequency. This is the frequency that the transmitter will broadcast timecode and ZaxNet audio on for the purpose of confidence audio monitoring via an ERX receiver or Nomad. Note - the expected range will be less than 30 feet. IFB Receive Pulse – this menu will only appear if IFB is set to go into transmit mode.
Zaxcom TRX-900LT Series Manual Extended Menu Format Recording Card PRESS UP KEY 5X TO ERASE CARD This menu will allow you to erase and format the micro SD card. IMPORTANT: Even though many cards are sold preformatted, you must format the card in the transmitter prior to recording. Only cards formatted in the unit will work properly. NOTE: This menu will only appear if a card was inserted prior to booting up. Also if the micro SD card is removed this page will not appear. To Format a Card: 1.
Zaxcom TRX-900LT Series Manual Extended Menu Time Code Source TC SOURCE: IFB (RF) This menu selects how the TRX-900 will receive its timecode. • IFB (RF) – The transmitter will receive timecode via ZaxNet being broadcast from Nomad, an IFB100/200, another TRX transmitter or a ZFR recorder. • AUDIO INPUT– The transmitter, with a proper cable, will receive timecode via the microphone input. When timecode is connected, it takes the transmitter approximately three seconds to recognize the TC.
Zaxcom TRX-900LT Series Manual Extended Menu Dynamics DYNAMICS Dynamics OFF DYNAMICS PARMS ON When the Parameters are ON you can adjust the Dynamic Menu The Dynamics is a soft knee compressor that is located after the analog to digital converter. The Dynamics will limit the dynamic range to prevent clipping during occurrences of loud audio. Dynamics is comprised of both a compressor and an expander, which operate jointly.
Zaxcom TRX-900LT Series Manual Extended Menu Battery Type BATTERY TYPE: NIMH QRX This menu adjusts the battery type you are using so the receiver can properly display the remaining battery capacity. • The settings are NIMH, Lithium and Alkaline (Displayed as “ - - - -“) NOTE: In the menu you will see “ENG” and “QRX” options for these battery types as well. This is so each type Zaxcom receiver model“ENG” RX-900 or “QRX” QRX-100 can correctly display the transmitter’s battery level.
Zaxcom TRX-900LT Series Manual Extended Menu Left Right Switch LR SWITCH MODE OFF This menu turns on the left / right switch mode. This function allows the wireless user to cause the audio to switch from the left output to the right output of a stereo RX900 receiver when the key is pressed. You can select the UP, DOWN, or MENU key to act as the trigger.
Zaxcom TRX-900LT Series Manual Extended Menu Phase Invert Channel PHASE INVER CH2 OFF This will invert the phase of channel 2 (Right) audio to correct for a phasing issue. This would only be used in if you had a TRX900LTS/LTHS and using stereo mode. TX Disable TX DISABLE: NORMAL TX MODE • Record Only Mode – This will set the TRX-900 to act as a standalone recorder and will not transmit any RF audio on the UHF band.
Zaxcom TRX-900LT Series Manual Extended Menu Name NAME: SN1234 This menu changes the name of the transmitter. The name entered into the unit becomes part of the name of the audio files generated by the unit and is also included in the metadata of the BWF file. Naming the unit aids in identifying the files from several different wireless. The maximum Name length is 8 characters. You can select any letter or number and can even use spaces. To set/change the name: 1.
Zaxcom TRX-900LT Series Manual Media Recording Media While any size card will work we recommend using a 4GB micro SD card. We also recommend that you buy a brand name card such as Transcend, SanDisk, or Delkin. You should always buy your cards from a reputable dealer because counterfeit cards exist and can cause recording issues. We also recommend that you test your card before taking them out into the field. Here is a testing procedure to determine if the card will function correctly: 1.
Zaxcom TRX-900LT Series Manual Firmware Firmware Each unit is shipped with the latest firmware version installed. As newer firmware becomes available, it can be downloaded from the Zaxcom website: http://www.zaxcom.com/software-updates Newer version of Beta software may be found on the Zaxcom Forums: http://www.zaxcom.com/forum Each time a unit is powered up, the firmware version number is displayed briefly on the LCD screen.
Zaxcom TRX-900LT Series Manual Firmware Updating an ERX with your TRX-900 Your transmitter can be used to update the software in a Zaxcom ERX receiver. Your transmitter must be running version 7.02 or higher to do so. 1. Format a card in your TRX. 2. With a computer perform the following: A. Delete the “DELETE.ME” file on the card B. Download the ERX firmware “ERX-XXX.bin” from the Zaxcom website and load it onto a card formatted by the TRX. 3. Insert the card into the TRX. 4.
Zaxcom TRX-900LT Series Manual Wiring Diagrams Inputting Audio The TRX900LT/LTS/LTH/LTHS use an unbalanced microphone input via a 3-pin micro-LEMO connector. You can use an unbalanced dynamic microphone or a powered lavaliere. You can use a line-level input though an inline pad is required. Wiring Diagrams The following 3-pin micro-LEMO connectors mate with the microphone connector: • FGB.00.303.CLAD.22 – has a latch with a pull release (recommended for RFI prevention). • FVB.00.303.
Zaxcom TRX-900LT Series Manual Wiring Diagrams Stereo Microphone Configuration Balanced Line Level and Timecode Input Stereo Line Level 24
Zaxcom TRX-90LT Series Manual Antenna Cutting Chart Antenna Cutting Chart 25
Zaxcom TRX-900LT Series Manual Frequency Chart Operating Frequencies ZaxNet Remote Control and Timecode 2.403 to 2.475 GHz UHF Audio Block 20 21 22 23 24 25 26 27 28 29 30 31 32 33 UK Frequency Range 518.0 to 542.0 536.0 to 572.0 560.0 to 590.0 590.0 to 614.0 614.0 to 644.0 638.0 to 668.0 662.0 to 692.0 686.0 to 722.0* 722.0 to 746.0* 740.0 to 770.0* 764.0 to 794.0* 794.0 to 818.0* 818.0 to 842.0 860.0 to 872.0 606.0 to 636.
Zaxcom TRX-900LT Series Manual Specifications Specifications Transmitter TRX900LT / LTS RF Power Output: 50 mW TRX900LTH / LTHS Power Output: 25 / 50 / 125 mW – Software Selectable RF Modulation: Proprietary Digital Method RF Frequency Range: 518.0 to 872.0 MHz (Typical Blocks are 36 MHz wide) RF Frequency Step: 100 KHz RF Bandwidth: 200 KHz Channel Separation: 500 KHz (700 KHz recommended) Antenna Connector: 50 Ω SSMA Female Emission Designator: 180 KV2E FCC Part: 75.
Zaxcom TRX-900LT Series Manual Specifications Battery Life TRX900LT / LTS Battery Life: Up to 5 Hours with a Lithium AA TRX900LTH / LTHS Battery Life: Up to 3.5 Hours with a Lithium AA TRX900LTH / LTHS Battery Life with PowerRoll: Up to 4.5 Hours with a Lithium AA Please note you cannot use alkaline batteries with these transmitters, only Lithium Ion or rechargeable NiMH AA’s. All Specifications are subject to change without notice.
Zaxcom TRX-900LT Series Manual Support Product Support Register your product with Zaxcom: http://www.zaxcom.com/product-registration Download the latest Firmware from: http://www.zaxcom.com/software-updates Download the latest User Manuals from: http://www.zaxcom.com/instruction-manuals http://www.zaxcom.com/submit-a-technical-question Submit Technical Questions at: Submit information for Repair Services at:http://www.zaxcom.com/repairs Join the Zaxcom Forum at: http://www.zaxcom.com/forum .
Zaxcom Warranty Policy and Limitations Zaxcom Inc. values your business and always attempts to provide you with the very best service. No limited warranty is provided by Zaxcom unless your TRX-900LT/LTS/LTH/LTHS (“Product”) was purchased from an authorized distributer or authorized reseller. Distributers may sell Product to resellers who then sell Product to end users. Please see below for warranty information or obtaining service.
