Zaxcom TRXLA3 User manual

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USER MANUAL
Published December 2018
Firmware Version THD-218
TRXLA3
The Future Of Wireless Is Here

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TRXLA3 TRANSMITTER .................................................................................................................................. 4
HOME SCREEN .............................................................................................................................................. 6
MAIN MENU ................................................................................................................................................. 7
MICROPHONE GAIN SET ................................................................................................................................................................7
UHF TRANSMIT FREQUENCY SET.....................................................................................................................................................7
TRANSMITTER LOCK PAGE ..............................................................................................................................................................7
SUB MENUS.................................................................................................................................................. 8
MENU GROUPS ............................................................................................................................................................................8
ACCESSING AND NAVIGATING THE MENU GROUPS ...............................................................................................................................8
ENTERING AND NAVIGATING A SUB MENU..........................................................................................................................................8
EXITING THE EXTENDED MENU.........................................................................................................................................................8
TIME CODE MENU......................................................................................................................................... 9
TIME CODE FRAME RATE SET..........................................................................................................................................................9
TIME CODE SOURCE SELECT............................................................................................................................................................9
TC JAM MODE SELECT ..................................................................................................................................................................9
MUTE TIME CODE TRANSMISSION UNTIL JAMMED ...........................................................................................................................10
AUTO FRAME RATE ENABLE..........................................................................................................................................................10
TRANSMIT MENU.........................................................................................................................................11
UHF TRANSMITTER POWER LEVEL SET ...........................................................................................................................................11
UHF TRANSMIT MODULATION SET................................................................................................................................................11
POWER ROLL MODE ...................................................................................................................................................................11
TRANSMITTER DISABLE -RECORD ONLY MODE..................................................................................................................................12
RECORD MENU ............................................................................................................................................13
SD CARD FORMAT......................................................................................................................................................................13
PLAYBACK CONTROL....................................................................................................................................................................13
TIME LEFT ON CARD....................................................................................................................................................................14
AUTOMATIC RECORD AFTER BOOT UP.............................................................................................................................................14
RECORDING MODE SET................................................................................................................................................................14
LOW BATTERY STOP SET ..............................................................................................................................................................14
ZAXNET MENU.............................................................................................................................................15
ZAXNET MODE ..........................................................................................................................................................................15
ZAXNET RECEIVE FREQUENCY SET..................................................................................................................................................15
ZAXNET TRANSMIT FREQUENCY SET...............................................................................................................................................15
GROUP CODE SET.......................................................................................................................................................................16
UNIT CODE SET..........................................................................................................................................................................16
ZAXNET VOTING ENABLE .............................................................................................................................................................16
ZAXNET RECEIVE BEFORE TRANSMIT TIME ......................................................................................................................................17
IFB RECEIVE PULSE SET ...............................................................................................................................................................18
RECORD BEEP SET.......................................................................................................................................................................18
AUDIO MENU...............................................................................................................................................19
HIGH PASS FILTER.......................................................................................................................................................................19
2K NOTCH FILTER.......................................................................................................................................................................19
DYNAMICS ................................................................................................................................................................................20

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SETUP MENU ...............................................................................................................................................21
TEST TONE ................................................................................................................................................................................21
BATTERY TYPE SET ......................................................................................................................................................................21
KEY LOCK ON BOOT UP...............................................................................................................................................................21
QRX /ERX FIRMWARE UPDATE ...................................................................................................................................................22
LOW BATTERY STOP....................................................................................................................................................................22
OLED BRIGHTNESS ADJUST..........................................................................................................................................................22
OLED DISPLAY DIM....................................................................................................................................................................22
INVERT DISPLAY..........................................................................................................................................................................22
INFORMATION PAGE ...................................................................................................................................................................23
HIDE ENCRYPTION MENU.............................................................................................................................................................23
ENCRYPTION CODE SET................................................................................................................................................................23
HIDE TRANSMITTER NAME MENU .................................................................................................................................................23
TRANSMITTER NAME SET .............................................................................................................................................................24
RECORDING FORMAT ..................................................................................................................................................................25
FIRMWARE ..................................................................................................................................................26
UPDATING THE TRXLA3 FIRMWARE...............................................................................................................................................26
UPDATING ERX FIRMWARE WITH A TRX TRANSMITTER......................................................................................................................26
UPDATING QRX FIRMWARE WITH A TRX TRANSMITTER .....................................................................................................................27
INPUTTING AUDIO .......................................................................................................................................28
RECOMMENDED MICROPHONES..................................................................................................................28
WIRING DIAGRAMS......................................................................................................................................28
TWO WIRE MICROPHONE CONFIGURATION.....................................................................................................................................28
THREE WIRE MICROPHONE CONFIGURATION...................................................................................................................................28
STEREO MICROPHONE CONFIGURATION –FOR TRXLAS ....................................................................................................................29
BALANCED LINE LEVEL AND TIME CODE INPUT ..................................................................................................................................29
STEREO LINE LEVEL –FOR STEREO TRANSMITTERS .............................................................................................................................29
OPERATING FREQUENCIES............................................................................................................................30
ZAXNET -REMOTE CONTROL AND TIME CODE .................................................................................................................................30
UHF -AUDIO ............................................................................................................................................................................30
PRODUCT SUPPORT .....................................................................................................................................32
SPECIFICATIONS...........................................................................................................................................33
ZAXCOM WARRANTY POLICY AND LIMITATIONS...........................................................................................34

Zaxcom TRXLA3 Transmitter Layout
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TRXLA3 Transmitter
1. SSMA Antenna Connector
2. OLED Display
3. Card Key
4. Microphone Input Connector (3 Pin Lemo)
5. INC / Record Key
Increases the parameters of a menu item.
When in the home screen pressing INC with the CARD key will put the transmitter into record.
When in the transport control screen while not recording will cause the transmitter to playback.
Pressing while playing back will advance playback, multiple presses will cause playback to advance in
larger increments.
Press and hold while in the transport control screen will advance to the next segment.
Press it while in the home screen will display the group and unit code and the time left on the card.
6. DEC / Stop Key
Decreases the parameters of the menu items.
When in the home screen pressing DEC with the CARD key will stop the recording.
When playing back in the transport control screen will cause the transmitter to stop playback.
Press and hold while in the transport control screen will jump back to the previous segment.
Pressing it three times quickly while in the home screen will access the sub menu.
7. Menu / Play Key
Press it to access the next menu item.
Press it with the CARD key to playback a segment.
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1
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2

Zaxcom TRXLA3 Transmitter Layout
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1. Power Switch
2. SSMA Antenna Connection
3. Media Slot Media Slot
Inserting a Micro SD card:
With the OLED screen of the transmitter facing you, turn the card so the finger contacts are facing you
and pointing down toward the slot. Insert the card into the slot and press it down until you here a slight
click. To remove it, press the card in until you hear the same click again.
4. Microphone / Input connector (3 pin Lemo)
5. Battery Compartment
TRXLA3 uses 2 AA batteries. Alkaline, Lithium or NiMH batteries can be used.
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1
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1

Zaxcom TRXLA3 Home Screen
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GROUP:1 UNIT:1
TIME LEFT 24H
TC: 09:18:05:00
23.98 (AUTO)
Home Screen
Frequency - This is the transmit frequency of the TRXLA3.
If the TRXLA3 is being used in RECORD ONLY mode “NOTX” will be displayed.
ZaxNet Status
IFB RX - The TRXLA3 is receiving ZaxNet.
IFB TX - The TRXLA3 is transmitting ZaxNet.
Transport Status –Displays the current mode of the recording feature.
STOP - Recording / Playback is stopped
LREC - TRXLA3 is recording in LOOP RECORD mode.
REC - TRXLA3 is recording in NON-LOOP RECORD mode.
PLAY - TRXLA3 is playing back a recorded audio file.
Power Level - Displays the transmit power level.
Battery - This displays the selected battery chemistry type as well as a battery meter which shows an
approximate percentage of remaining power.
Audio Meter - Displays the modulation of the inputted audio signal.
If using a stereo transmitter in stereo mode both the left and right audio levels will be shown.
SEG - Displays the number of recorded segments on the micro SD card. Please note that regardless of
the size of the card it is limited to 500 segments.
Gain - “G” Appears when the transmitter is receiving change of gain commands via ZaxNet.
Group and Unit Code - Pressing the INC key while in the
home screen will display the group and unit code and the
record time remaining on the card.
Time Code and Frame Rate - Pressing the DEC key while in
the home screen will display the time code and frame rate of
the time code generator.
ZaxNet Status Transport Power
Frequency Modulation Status Level
Battery Level Audio Meter Gain
And Type
Indicators at -20, -10, 0 dBFS
543.2 STOP
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NIMH ZHD96 SEG 001
G

Zaxcom ZMT3 Main Menu
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Main Menu
To cycle through the main menu press the MENU key.
Microphone Gain Set
The microphone gain is adjusted from this menu. This menu displays the gain setting in decibels and a meter
indicating the audio signal. The meter is displayed horizontally from left to right. In the case of a TRXLT3 S
operating in stereo mode, two meters will be displayed - one for each channel. Please note that the gain in
stereo mode is applied to both sources simultaneously.
UHF Transmit Frequency Set
This menu is where the UHF transmit frequency is set.
Short presses of the INC or DEC key causes the value to change by 0.1 MHz
Holding the INC or DEC key causes the value to change by 0.5 MHz
Transmitter Lock Page
This page enables a key lock function so no parameters can be changes. When the lock page is landed on
a countdown clock will begin. After 5 seconds the transmitter will lock and the display will indicated that
it is LOCKED. If this screen is exited before the 5 seconds are up the transmitter will not lock.
To lock the transmitter before the 5 seconds press and hold the DEC key.
If the OLED brightness setting is set to “2” the screen will blank out when the transmitter is locked. The
only thing that will be displayed is a small character displaying the status of the internal recorder.
S - The recorder is stopped, R - The transmitter is recording, L - The transmitter is recording in loop mode
and P - The recorder is playing back.
Pressing the INC key when the transmitter is locked will display the transmitters group and unit code, its
transmit frequency and serial number. Pressing the DEC key will display the units name, battery voltage
and current record segment number.
To unlock the transmitter
Press and hold the MENU key and press INC keys 5 times.
Or
Powering down and reboot the transmitter.
GAIN 20 dB
TXFREQ 543.2
Countdown clock starting at 5 seconds
After the transmitter locks
LOCKED 20 dB
09:18:05:02
23.98
IFB RX
LOCK 5

Zaxcom TRXLA3 Menu Navigation
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Sub Menus
Menu groups
The TRXLA3 has six sub menu groups
Time Code - Changes the time code parameters of transmitter.
Transmit - Changes the parameters of the UHF transmitter.
Record - Changes the parameters of the on-board recorder.
ZaxNet - Changes the parameters of the ZaxNet transceiver.
Audio - Changes the parameters of the transmitted and recorded audio.
Setup - Changes the parameters of the general operation on the transmitter.
Accessing and navigating the menu groups
From in the home screen press the CARD key three times, or hold the MENU key while booting up, to access the
six menu groups. Then pressing the INC or DEC key will cycle between the menu items.
Entering and navigating a sub menu
When landing on the desired menu group press the MENU key to enter that menu.
To return to the top of the menu press the MENU key to cycle to the top or press and hold the MENU key for 1.5
seconds.
Exiting the extended menu
Press the CARD key three times quickly. Or press the MENU key to cycle through the sub menu items until
HOME MENU is displayed then press the MENU key. Or cycle the power.

Zaxcom TRXLA3 Time Code Menu
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TIME CODE MENU
Time Code Frame Rate Set
The time code frame rate menu is where the time code frame rate is set.
The TRXLA3 will lock to and record all standard time code frame rates.
23.98, 24, 25, 29.97DF, 29.97DF, 30 DF, 30 NDF
Time Code Source Select
The time code source menu selects how the transmitter will receive its time code.
ZAXNET (RF) - The TRXLA3 will receive time code via ZaxNet from a Nomad, a QRX235, IFB100/200,
TRX900CL or another TRX transmitter or a ZFR recorder that is transmitting ZaxNet time code.
AUDIO INPUT - The TRXLA3, with a proper cable, will receive time code via the microphone input.
When time code is connected, it takes the TRXLA3 approximately three seconds to recognize the TC. The
screen will display TIME CODE followed by JAM when it is recognized. Please note that when using the
microphone input connector, the audio level of the time code signal needs to be between -30 and -10 dBFS
on the unit’s meter. Any level above -10 may cause clipping, which will prevent proper reading of time code.
TC Jam Mode Select
This menu controls if the TRXLA3 will go into record when it receives a record run time code.
AUTO-JAM NORMAL - The TRXLA3 will continuously jam time code via ZaxNet and will go into record when
receiving a record command via ZaxNet or if the unit is put into record manually by pressing the CARD and
INC keys simultaneously.
AUTO-LOAD REC RUN - In Auto-Load mode the TRXLA3 will go into record when it detects rolling time code,
and will stop when the time code stops. If time code is lost because the IFB signal is too weak the unit will
not stop but will continue in whatever state it was in until the time code signal is restored.
TIMECODE 23.98
GEN 09:18:05:02
____
TC SOURCE:
ZAXNET (RF)
TC JAM MODE:
AUTO-JAM NORMAL

Zaxcom TRXLA3 Time Code Menu
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Mute Time Code Transmission Until Jammed
If the mute time code menu is set to ON the ZaxNet transmitter will not broadcast time code over ZaxNet
until the transmitter receives time code and jams its own internal time code generator. This prevents the
ZaxNet from sending incorrect time code to another device.
Auto Frame Rate Enable
When turned ON the TRXLA3 will automatically set its frame rate to the frame rate that is being transmitted
from the ZaxNet transmitter that is feeding the TRXLA3. If auto frame rate is set to OFF the frame rate will
need to be adjusted manually. Please note that auto frame rate will only work when the time code is being
received over ZaxNet and will not work when time code is being received via the audio input.
MUTE TC SEND
UNTIL JAMED: OFF
AUTO FRAME RATE
ON (23.98)