Zaxcom ZMT270 User manual

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USER MANUAL
Published October 2019
Firmware Version ZMT270
ZMT3-HH
Smart Audio

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ZMT3 HM 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
RECORD MENU ........................................................................................................................................... 9
SD CARD FORMAT ................................................................................................................................................................... 9
PLAYBACK CONTROL ................................................................................................................................................................ 9
TIME LEFT ON CARD ............................................................................................................................................................... 10
AUTOMATIC RECORD AFTER BOOT UP .................................................................................................................................... 10
RECORDING MODE SET ........................................................................................................................................................... 10
LOW BATTERY STOP SET ......................................................................................................................................................... 10
TRANSMIT MENU ..................................................................................................................................... 11
UHF TRANSMITTER POWER LEVEL SET ..................................................................................................................................... 11
UHF TRANSMIT MODULATION SET ......................................................................................................................................... 11
TRANSMITTER DISABLE -RECORD ONLY MODE ......................................................................................................................... 11
ZAXNET MENU ......................................................................................................................................... 12
ZAXNET MODE ...................................................................................................................................................................... 12
ZAXNET RECEIVE FREQUENCY SET .......................................................................................................................................... 12
ZAXNET TRANSMIT FREQUENCY SET ....................................................................................................................................... 12
LOW POWER ZAXNET ............................................................................................................................................................ 13
GROUP CODE SET .................................................................................................................................................................. 13
UNIT CODE SET ...................................................................................................................................................................... 13
ZAXNET VOTING ENABLE ....................................................................................................................................................... 13
ZAXNET RECEIVE BEFORE TRANSMIT TIME ............................................................................................................................... 14
RECORD BEEP SET ................................................................................................................................................................... 14
AUDIO MENU ............................................................................................................................................ 15
HIGH PASS FILTER ................................................................................................................................................................... 15
2K NOTCH FILTER .................................................................................................................................................................. 15
DYNAMICS .............................................................................................................................................................................. 16
TIME CODE MENU ................................................................................................................................... 17
TIME CODE FRAME RATE SET ................................................................................................................................................... 17
TC JAM MODE SELECT ............................................................................................................................................................ 17
MUTE TIME CODE TRANSMISSION UNTIL JAMMED .................................................................................................................... 17
AUTO FRAME RATE ENABLE ..................................................................................................................................................... 17

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SETUP MENU ............................................................................................................................................. 18
LED COLOR ........................................................................................................................................................................... 18
LED RING MODE .................................................................................................................................................................... 18
KEY FUNCTION ....................................................................................................................................................................... 18
TEST TONE ............................................................................................................................................................................. 18
KEY LOCK ON BOOT UP ........................................................................................................................................................ 19
QRX /ERX FIRMWARE UPDATE ............................................................................................................................................. 20
OLED BRIGHTNESS ADJUST .................................................................................................................................................... 20
OLED DISPLAY DIM ................................................................................................................................................................ 20
INFORMATION PAGE ............................................................................................................................................................... 20
HIDE ENCRYPTION MENU ....................................................................................................................................................... 20
ENCRYPTION CODE SET .......................................................................................................................................................... 21
HIDE TRANSMITTER NAME MENU ............................................................................................................................................ 21
TRANSMITTER NAME SET ......................................................................................................................................................... 21
MEDIA .......................................................................................................................................................... 22
MEDIA CAPACITY .................................................................................................................................................................... 22
RECORDING FORMAT .............................................................................................................................................................. 22
FIRMWARE ................................................................................................................................................. 23
UPDATING THE ZMT3-HH FIRMWARE ..................................................................................................................................... 23
UPDATING ERX FIRMWARE WITH A ZMT3-HH TRANSMITTER .................................................................................................. 23
UPDATING QRX FIRMWARE WITH A ZMT3-HH TRANSMITTER ................................................................................................ 24
OPERATING FREQUENCIES .................................................................................................................. 25
ZAXNET -REMOTE CONTROL AND TIME CODE ...................................................................................................................... 25
UHF -AUDIO ......................................................................................................................................................................... 25
PRODUCT SUPPORT ............................................................................................................................... 26
SPECIFICATIONS ..................................................................................................................................... 27
ZAXCOM WARRANTY POLICY AND LIMITATIONS ...................................................................... 28

Zaxcom ZMT3-HH Transmitter
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ZMT3 HM Transmitter
1. Microphone Capsule - The ZMT3-HH can use any Shure compatible microphone capsule.
2. LED Light Ring
3. OLED Display
XLR View - When looking at the OLED Display the INC
key will be on the top and the DEC key will be on the
bottom seperated by the MENU key.
4. Menu / Play Key
• Press it to access the next menu item.
• Press it with the rubber membrane key to playback a segment.
5. INC / Record Key
• Increases the parameters of a menu item.
• When in the home screen pressing INC with the rubber membrane key will put the transmitter into
record.
• Press it while in the home screen will display the group and unit code and ZaxNet status and frequency.
6. DEC / Stop Key
• Decreases the parameters of the menu items.
• When in the home screen pressing DEC with the rubber membrane key will stop the recording.
• Press it while in the home screen will display time code, user bits and frame rate as well as the time left
on the card
7. Card / Power Key
• Push and hold for 2 seconds to power on.
• Push and hold 3 seconds followed by a quick press of the MENU key to power off.
• Press 3 times quickly to access the sub menus.
• Press 3 times quickly to return to the home screen.
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Zaxcom ZMT3-HH Transmitter
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1. Micro SD Card 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 hear a
slight click. To remove it, press the card in until you hear the same click again.
Please see the Media section of this manual for card recommendations.
2. Battery Compartment
The ZMT3-HH uses one 18650 Li-ion battery.
The negative side of the battery is inserted into the unit and the positive end will face out
Warning: Batteries can vary in diameter from different manufacturers. The thicker batteries my
not fully fit into the unit.
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Zaxcom ZMT3-HH Home Screen
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Home Screen
Frequency - This is the transmit frequency of the ZMT3-HH.
If the ZMT3-HH is being used in RECORD ONLY mode “NOTX” will be displayed.
Transport Status - Displays the current mode of the recording feature.
• STOP - Recording / Playback is stopped
• LREC - ZMT3-HH is recording in LOOP RECORD mode.
• REC - ZMT3-HH is recording in NON-LOOP RECORD mode.
• PLAY - ZMT3-HH is playing back a recorded audio file.
Time code - Displays the transmission time code of the unit.
Modulation Type - Displays the transmission modulation type.
Segment - 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.
Battery - This displays the approximate percentage of remaining battery power.
Audio Meter - Displays the modulation of the inputted audio signal.
Gain - “G” Appears when the transmitter is receiving change of gain commands via ZaxNet.
ZaxNet Status Transport Power
Frequency Modulation Status Level
Battery Level Audio Meter Gain
Indicators at -20, -10, 0 dBFS
543.2 STOP
09:18:03:00 ZHD96 05
G

Zaxcom ZMT3-HH 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. To increase the gain press the INC key and to decrease the
gain press the DEC key.
This menu displays the gain setting in decibels and a meter indicating the audio signal. The meter is displayed
horizontally from left to right.
UHF Transmit Frequency Set
This menu is where the UHF transmit frequency is set. To adjust the frequency, press the INC and DEC keys.
• 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.
Pressing the INC key when the transmitter is locked will display the 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.
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 ZMT3-HH Menu Navigation
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Sub Menus
Menu groups
The ZMT3-HH has six sub menu groups
• Record - Changes the parameters of the on-board recorder.
• Transmit - Changes the parameters of the UHF transmitter.
• ZaxNet - Changes the parameters of the ZaxNet transceiver.
• Audio - Changes the parameters of the transmitted and recorded audio.
• Time Code - Changes the time code parameters.
• Setup - Changes the parameters of the general operations.
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 thru the menu items.
Entering and navigating a sub menu
After 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 3 times, or press the MENU key to cycle through the sub menu items until HOME MENU
is displayed then press the MENU key.

Zaxcom ZMT3-HH Record Menu
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RECORD MENU
SD Card Format
This menu will only appear if a card was inserted prior to booting up
The Micro SD card is erased and formatted from this menu. Please note that all cards need to be formatted in
the ZMT3-HH prior to recording.
Before formatting the card, the transmitter can optionally be named (see set up menu) with the talents name,
or any other unique identifier makes it easier to keep track of files from different recorders. When a
transmitter is named that name is included in file name.
The card name menu is located at the end of the set up menu.
The factory default name is the transmitter’s serial number.
Partial Format
If the card’s FAT32 file structure gets corrupt while doing a file transfer, and the card is no longer recognized by
the transmitter or by ZaxConvert, a partial format can be done. The partial format rewrites the FAT32 file
structure and leaves the recorded audio untouched. To do a partial format from this menu press the DEC key 9
times “PARTIAL FORMAT” will then be displayed.
Playback Control
Recorded files can be played back from this page.
The top line displays the current mode of the recorder: REC, PLAY or STOP followed by the time code.
The bottom line contains the current segment number time code frame rate and the audio level.
Playing back from the transport page:
• Pressing the INC key while stopped will play the segment number that is displayed.
• Pressing the DEC key while playing back will stop the playback.
• Pressing the DEC key while stopped will jump back.
• Holding the INC key will jump ahead one segment.
• Holding the DEC key will jump back one segment.
• Pressing the INC key while in play mode will cause the playback to jump ahead, repeated quick presses will
cause playback to advance in larger increments.
PRESS UP KEY 5X:
TO ERASE CARD
STOP 09:18:05:02
SEG 001 23.98

Zaxcom ZMT3-HH Record Menu
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Time Left on Card
This menu will only appear if a card was inserted prior to booting up
This page displays the remaining time left on the card as well as the time already recorded on the card.
Automatic Record after Boot up
Record on boot up allows the onboard recorder to automatically start recording after the ZMT3-HH boots up.
• ON - The onboard recorder will automatically start to record after the ZMT3-HH boots up.
• OFF - The onboard recorder will wait for a ZaxNet command or a manual record trigger to start recording.
Recording Mode Set
Record mode sets what the recorder will do after the card is full. Regardless of this setting the card can only
record 500 files.
• NON-LOOP RECORD - Once the card is full the recording will stop and FULL will be displayed. This setting
prevents over-writing any portion of the audio.
• LOOP RECORD - Once the card is full, the new audio will begin over-writing the oldest audio on the card.
Low Battery Stop Set
Low battery stop will set the amount of time, after a low battery warning occurs, the on-board recorder will
close the current file and stop recording.
This is to prevent possible file corruption if the unit constantly powers off and on due to a dead battery.
• NEVER STOP - The onboard recorder will not stop recording unless it is manually stopped by a key press, or
when it receives a stop command via ZaxNet, or if the battery dies.
• Any interval from 1 to 99 minutes - Once the battery indicator starts blink a low battery warning the
onboard recorder will continue to record for the time set here - then it will close the file and stop recording.
TIME LEFT 20 H
TIME USED 4 H
____
RECORD ON BOOTUP
OFF
RECORD MODE:
LOOP RECORD
LOW BATT STOP:
NEVER STOP