Zaxcom ZFR400 User manual

1
USER MANUAL
Published June 2017
Firmware Version ZMT217
ZFR400
the ultimate stealth recorder

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ZFR400 ......................................................................................................................................................... 4
HOME SCREEN .............................................................................................................................................. 6
MAIN MENU ................................................................................................................................................. 7
HOME SCREEN .............................................................................................................................................................................7
MICROPHONE GAIN SET ................................................................................................................................................................7
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
RECORD MENU ............................................................................................................................................11
SD CARD FORMAT......................................................................................................................................................................11
TIME LEFT ON CARD....................................................................................................................................................................11
AUTOMATIC RECORD AFTER BOOT UP.............................................................................................................................................11
RECORDING MODE SET................................................................................................................................................................12
LOW BATTERY STOP SET ..............................................................................................................................................................12
ZAXNET MENU.............................................................................................................................................13
ZAXNET MODE ..........................................................................................................................................................................13
ZAXNET RECEIVE FREQUENCY SET..................................................................................................................................................13
ZAXNET TRANSMIT FREQUENCY SET...............................................................................................................................................13
GROUP CODE SET.......................................................................................................................................................................14
UNIT CODE SET ..........................................................................................................................................................................14
ZAXNET VOTING ENABLE .............................................................................................................................................................14
ZAXNET RECEIVE BEFORE TRANSMIT TIME ......................................................................................................................................15
IFB RECEIVE PULSE SET ...............................................................................................................................................................16
RECORD BEEP SET.......................................................................................................................................................................16
AUDIO MENU...............................................................................................................................................17
HIGH PASS FILTER.......................................................................................................................................................................17
2K NOTCH FILTER.......................................................................................................................................................................17
DYNAMICS ................................................................................................................................................................................18

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SETUP MENU ...............................................................................................................................................19
TEST TONE ................................................................................................................................................................................19
KEY LOCK ON BOOT UP...............................................................................................................................................................19
ERX FIRMWARE UPDATE .............................................................................................................................................................19
LOW BATTERY STOP....................................................................................................................................................................19
OLED BRIGHTNESS ADJUST..........................................................................................................................................................20
OLED DISPLAY DIM....................................................................................................................................................................20
INFORMATION PAGE ...................................................................................................................................................................20
HIDE ENCRYPTION MENU.............................................................................................................................................................20
ENCRYPTION CODE SET................................................................................................................................................................20
HIDE NAME MENU .....................................................................................................................................................................21
NAME SET.................................................................................................................................................................................21
RECORDING FORMAT ..................................................................................................................................................................22
FIRMWARE ..................................................................................................................................................23
UPDATING THE ZFR400 FIRMWARE...............................................................................................................................................23
UPDATING ERX FIRMWARE WITH A ZFR400 ...................................................................................................................................23
INPUTTING AUDIO .......................................................................................................................................24
RECOMMENDED MICROPHONES ..................................................................................................................24
WIRING DIAGRAMS......................................................................................................................................24
TWO WIRE MICROPHONE CONFIGURATION.....................................................................................................................................24
THREE WIRE MICROPHONE CONFIGURATION...................................................................................................................................24
BALANCED LINE LEVEL AND TIME CODE INPUT ..................................................................................................................................25
PRODUCT SUPPORT .....................................................................................................................................26
SPECIFICATIONS...........................................................................................................................................27
ZAXCOM WARRANTY POLICY AND LIMITATIONS...........................................................................................28

Zaxcom ZFR400 ZFR400
4
ZFR400
1. Card / Power Key
Push and hold for 2 seconds to power on the ZFR400.
Push and hold 3 seconds followed by a quick press of the MENU key to power the ZFR400 off .
Press 3 times quickly to access the sub menus.
Press 3 times quickly to return to the home screen.
2. OLED Display
3. Menu / Play Key
Press it to access the next menu item.
Press it with the CARD key to playback a segment.
4. INC / Record Key
Increases the parameters of a menu item.
Pressing INC with the CARD key will manually put the ZFR400 into record. Please note recording can be
initiated while in any menu and not only from the home screen.
Pressing while not recording will start playback.
Pressing while playing back will advance playback, multiple presses will cause playback to advance in
larger increments, press and hold will advance to the next segment.
5. DEC / Stop Key
Decreases the parameters of the menu items.
Pressing DEC with the CARD key will stop the recording. Please note recording can be stopped while in
any menu and not only from the home screen.
Pressing while playing back will cause the ZFR400 to stop playback, then if pressed again will cause
playback to jump back within that segment. Press and hold will jump back to the previous segment.
6. Microphone Connector (3 pin Lemo)
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2
6
4
5

Zaxcom ZFR400 ZFR400
5
1. Micro SD Card Slot
Inserting a Micro SD card:
With the OLED screen of the ZFR400 facing you, turn the card so the finger contacts are facing away
towards the battery compartment and pointing down toward the slot. Insert the card into the slot and
press it down until there is a slight click. To remove it, press the card in until the same click is heard
again.
2. Microphone Connector (3 pin Lemo)
3. Battery Compartment
ZFR400 uses 1 NP50 battery.
Warning: Some batteries can vary in size which may cause some batteries to get caught
on the gasket when opening the battery door. If this happens DO NOT fully open the
battery door or try to reclose the door while the battery is stuck, as this can damage the
power connector and will need to be sent in for service. If a battery gets caught please
pull the battery off the door first.
2
1
4

Zaxcom ZFR400 Home Screen
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Home Screen
Transport Status - Displays the current mode of the recording feature.
STOP - Recording / Playback is stopped
LREC - ZFR400 is recording in LOOP RECORD mode.
REC - ZFR400 is recording in NON-LOOP RECORD mode.
PLAY - ZFR400 is playing back a recorded audio file.
Time Code and Frame Rate - Displays the time code that
is being recorded or playing back.
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.
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 ZFR400 is receiving change of gain commands via ZaxNet.
Recorder Status Time Code
Segment Number Frame Rate
Battery Level Audio Meter Gain
Indicators at -20, -10, 0 dBFS
REC 09:18:05:03
SEG 001 23.98
G

Zaxcom ZFR400 Main Menu
7
Main Menu
To cycle through the main menu press the MENU key.
Home Screen
Recorded files can be played back from the home screen.
Playing back from the home screen
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.
Holding the INC key will jump ahead one segment.
Pressing the DEC key while stopped will jump back.
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.
Holding the DEC key will jump back one segment.
Microphone Gain Set
The microphone gain is adjusted from this menu. This menu displays the gain in decibels and a meter indicating
the audio signal. The meter is displayed horizontally from left to right. Pressing the INC key increases the gain
and pressing the DEC key will decrease the gain.
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 ZFR400 will lock and the display will indicated that it is
LOCKED and after 5 seconds will go blank. If this screen is exited before the 5 seconds are up the ZFR400
will not lock. To lock the ZFR400 before the 5 seconds press and hold the DEC key.
Pressing the INC key when the ZFR400 is locked will display the ZMT’s group and unit code, and the serial
number. Pressing the DEC key will display the units name, battery voltage and current record segment
number.
Unlocking the ZFR400
Press and hold the MENU key and press INC keys 5 times. Or power down and reboot the ZFR400.
GAIN 20 dB
Countdown clock starting at 5 seconds
After the ZFR400 locks
LOCKED 20 dB
09:18:05:02
23.98
IFB RX
LOCK 5
STOP 09:18:05:03
SEG 001 23.98
____

Zaxcom ZFR400 Menu Navigation
8
Sub Menus
Menu groups
The ZFR400 has five sub menu groups
Time Code - Changes the time code parameters of ZFR400.
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 ZFR400.
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
sub 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 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 ZFR400 Time Code Menu
9
TIME CODE MENU
Time Code Frame Rate Set
This menu is where the time code frame rate is set.
The ZFR400 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 ZFR400 will receive its time code.
ZAXNET (RF) - The ZFR400 will receive time code via ZaxNet from a Nomad, a QRX235, IFB100/200,
TRX900CL or a TRX transmitter or another ZFR recorder that is transmitting ZaxNet time code.
AUDIO INPUT - The ZFR400, with a proper cable, will receive time code via the microphone input.
When time code is connected, it takes the ZFR400 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 ZFR400 will go into record when it receives a record run time code.
AUTO-JAM NORMAL - The ZFR400 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 ZFR400 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 ZFR400 Time Code Menu
10
Mute Time Code Transmission Until Jammed
If the mute time code menu is set to ON the ZaxNet ZFR400 will not broadcast time code over ZaxNet until
the ZFR400 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 ZFR400 will automatically set its frame rate to the frame rate that is being transmitted
from the ZaxNet transmitter that is feeding the ZFR400. 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)

Zaxcom ZFR400 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. To format the card press the INC key five times.
Please note that all cards need to be formatted in the ZFR400 prior to recording.
Before formatting the card, the ZFR400 can optionally be named (see set up menu). When a ZFR400 is named
that name is included in the recorded file names. By naming the ZFR400 it makes it easier to differentiate files
from different recorders, so for example the card can be identified with the talents name, or any other unique
identifier. The card name menu is located at the end of the set up menu. The factory default name is the
ZFR400’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 ZFR400 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.
Time Left on Card
This menu will only appear if a card was inserted prior to booting up
This page displays the remaining record 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 recording to automatically start after the ZFR400 boots up.
ON - Recording will automatically start after the ZFR400 boots up.
OFF - The ZFR400 will boot up and wait for a ZaxNet command or a manual trigger to start recording.
To manually trigger record –simultaneously press the CARD and INC key.
PRESS UP KEY 5X:
TO ERASE CARD
TIME LEFT 20 H
TIME USED 4 H
____
RECORD ON BOOTUP
OFF

Zaxcom ZFR400 Record Menu
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Recording Mode Set
Record mode sets what the ZFR400 will do after the card is full.
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.
Please note that regardless of the record mode setting the card can only record 500 files.
Low Battery Stop Set
Low battery stop will set the amount of time, after a low battery warning occurs, the ZFR400 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 blinking the ZFR400 will continue to
record for the time set here - then the ZFR400 will close the file and stop recording.
RECORD MODE:
LOOP RECORD
LOW BATT STOP:
NEVER STOP

Zaxcom ZFR400 ZaxNet Menu
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ZAXNET MENU
ZaxNet Mode
This menu sets the mode of the ZaxNet transceiver.
OFF - The ZaxNet transceiver is disabled. The ZFR400 will not receive ZaxNet commands or time code and it
will not send any ZaxNet audio. Please note if ZaxNet mode is set to OFF the several ZaxNet menu items will
not appear.
RX - The ZaxNet transceiver will receive ZaxNet commands and time code.
This screen will display what ZaxNet data is being received by the ZFR400. Including total received
information packets, ZaxNet TC received and remote control commands received. This information is used
for debugging purposes.
Please note if the RX to TX Time is enabled the ZFR400 will not be able to be set to RX mode.
TX - The ZaxNet transceiver will send ZaxNet confidence audio and time code.
ZaxNet Receive Frequency Set
This menu will only appear if ZaxNet is set to receive (RX) mode
The ZaxNet receive frequency is the frequency that the ZFR400 will get its wireless time code and remote
control commands on. This frequency will need to match the frequency of the corresponding ZaxNet
transmitter. The ZaxNet transmitter can be a QRX with QIFB, Nomad, TRX900CL or IFB100/200. The ZFR400 can
also receive ZaxNet time code from another TRX / ZMT transmitter or a ZFR recorder that is transmitting
ZaxNet on this frequency. Please keep in mind that the range will be limited when receiving ZaxNet from a TRX
or ZFR.
When the ZFR400 is receiving a valid ZaxNet signal the signal strength will be shown as well as signal strength
meter that runs vertically on the far right side of the screen.
ZaxNet Transmit Frequency Set
This menu will only appear if ZaxNet is set to transmit (TX) mode
The ZaxNet transmit frequency is the frequency that the ZFR400 will broadcast time code and confidence audio
on. Please note the ZaxNet transmitted audio is for quality control purposes and the expected range will be less
than 20 feet.
ZAXNET MODE: TX
RX FREQ : 2.403 RX
SIGNAL : 28
ZAXNET TX FREQ:
2.473

Zaxcom ZFR400 ZaxNet Menu
14
Group Code Set
This menu is where the ZFR400 is assigned to a group. The group code allows ZFR400s to be grouped together
so they can be controlled via ZaxNet without affecting others.
So for example a ZFR400 set to Group 1 will be controlled by a ZaxNet transmitter set to Group 1 and a ZFR400
assigned to group 2 will be controlled by a Group 2 ZaxNet transmitter. This is helpful if two or more people on
set are sending ZaxNet commands. The different group codes allow each person to be independent and not
interfere with each other. Most users leave the group set to 1 on all of their Zaxcom products. Group codes can
be set from 1 to 99.
Unit Code Set
This menu is where the ZFR400 is assigned a unit code. The unit code is a unique number used to identify each
ZFR400 within a particular group. This allows individual ZFR400s within the same group to be independently
controlled. Each ZFR400 should have a different unit code.
Unit codes can be assigned any number from 1 to 200.
ZaxNet Voting Enable
This menu will only appear if ZaxNet is set to receive (RX) mode
The purpose of voting is to allow the ZaxNet receiver in the ZFR400 to choose, and switch to, the stronger
signal from two different ZaxNet transmitters. One purpose of this is if on a large set a second IFB transmitter
can be placed at a different location so the ZaxNet receiver in the ZFR400 can choose the stronger signal.
Please note that the second ZaxNet transmitting frequency must be set 2MHz higher than the first ZaxNet
transmitter.
REMOTE CONTROL
GROUP CODE = 1
REMOTE CONTROL
UNIT CODE = 001
ZAXNET VOTING:
NORMAL (OFF)

Zaxcom ZFR400 ZaxNet Menu
15
ZaxNet Receive Before Transmit Time
This menu adjusts the state of the ZaxNet transceiver.
This menu also sets how long after boot-up up the ZFR400 will search for ZaxNet time code before it begins
transmitting its audio over ZaxNet for monitoring purposes. This is so the ZFR400 can lock to ZaxNet time
code source before the unit will send confidence audio over ZaxNet.
Receive only mode.
The ZaxNet transceiver will only receive ZaxNet and NOT go into
transmit mode. Therefore no ZaxNet TC and/or audio will be
transmitted. This setting shuts off the ZaxNet transmitter.
Receive then Transmit mode.
After boot up the ZaxNet transceiver will search for a
ZaxNet signal for the selected time so it can receive and
lock time code before it begins to transmit TC and
confidence audio.
This is adjustable from 1 to 20 Seconds.
Transmit only mode.
The ZaxNet transceiver will only transmit ZaxNet TC and
audio and will NOT receive wireless TC or ZaxNet
commands. This setting shuts off the ZaxNet receiver.
RX TO TX TIME:
OFF (NORMAL RX)
ZAXNET RX TO TX:
0 SEC: TX ONLY
ZAXNET RX TO TX:
20 SEC

Zaxcom ZFR400 ZaxNet Menu
16
IFB Receive Pulse Set
This menu will only appear if ZaxNet is set to go into transmit in the RX to TX Time menu.
This menu sets the interval that the ZaxNet transceiver will stop sending confidence audio and search for time
code.
When enabled the pulse setting tells the ZaxNet transceiver to leave ZaxNet transmit mode once every XXX
seconds and go into receive mode so it can re-jam its time code wirelessly via ZaxNet. This setting would be used
so the ZFR400 could update its time code while monitoring audio via an ERX receiver. Please note when the
ZaxNet transceiver searches for ZaxNet it will temporally go out of transmit mode for approximately 1 second as
it searches for ZaxNet time code. The settings are NEVER or any interval between 5 and 999 seconds.
Record Beep Set
This menu will only appear if ZaxNet is set to transmit (TX) mode
When the record beep is set to ON, and the ZFR400 is recording, the confidence audio sent to the ERX via
ZaxNet will have an audible beep, in user variable intervals, giving conformation that the ZFR400 is indeed
recording. The beeps will only be heard in the ERX and will not be recorded on the card. The intervals can be
set between 2 to 18 seconds in 2 second increments.
The ZaxNet transceiver will stay in transmit mode and never go into
receive mode.
In this example the ZaxNet transceiver will go out of transmit mode
every (600 seconds) 10 minutes. This setting would be used so the
ZFR400 could update its time code while monitoring audio via an ERX
receiver.
ZAXNET RX PULSE:
OFF
IFB RX PULSE
600 SECS
ZNET RECORD BEEP
OFF

Zaxcom ZFR400 Audio Menu
17
AUDIO MENU
High Pass Filter
The high pass filter is turned on and adjusted from this menu.
The high pass filter range is 70Hz to 220Hz in 10Hz increments.
2K Notch Filter
The 2K notch filter is useful in removing digital RF interference that can be introduced into some microphones.
HIGH PASS FILTER:
90Hz
____
2K NOTCH FILTER
ON

Zaxcom ZFR400 Audio Menu
18
Dynamics
The dynamics is a soft knee compressor that is located after the analog to digital converter which 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. The compressor in the dynamics can set to mild or
extreme compression and features a soft knee for more transparent operation.
To enter the Dynamics Menu
Press the INC or DEC key - “PARMS” (parameters) will be displayed on the right.
To move to the next parameter, press the MENU key.
To exit this page, hold the MENU key for 1 second.
Dynamics Parameters
Link L-R: OFF / ON: If using a stereo ZFR400 this links the left and right signal so if one side of the signal
needs compressing / expansion the other side will do the same to match.
SPEED (Decay Speed) : SLOWEST / SLOW / NORMAL / FAST / FASTEST
Sets how gradual the signal level decreases after a signal reaches the threshold setting. This is typically set
to FAST.
ATTACK (Attack Speed) : SLOWEST / SLOW / NORMAL / FAST / FASTEST
Sets the speed in how fast the gain is reduced once the signal exceeds the threshold setting. This is typically
set to FAST.
CMP RATIO (Compressor Ratio):Valid range: 1.0: to 5.0:1, in 0.1 steps.
The amount of gain reduction is determined by the compressor ratio setting.
A compressor ratio for example of 2.0:1 means for every 1 dB above the compressor threshold the gain will
be reduced 2dB. A higher ratio setting makes the compressor more aggressive.
CMP THRESH (Compressor Threshold): Valid range: 0 to –96dB, in 1dB steps.
This sets the level in which gain reduction occurs.
CMP KNEE: (Compressor Soft Knee): Valid range: 0 to 20dB, In 1dB steps.
Sets the compressor's soft knee. A soft knee reduces “softens” the audible change from uncompressed to
compressed, this is useful especially for higher ratios where the changeover is more noticeable
EXP RATIO (Expansion Ratio):Valid range: 1:1.00 to 1:4.00, In 0.01 steps
Sets the expansion ratio. For example a 1:2.0 expansion ratio means for every 1 dB below the expansion
threshold the gain will be reduced 2dB.
EXP THRESH (Expansion Threshold):Valid range: 0 to –96dB, in 1dB steps.
Sets the threshold above which gain reduction occurs.
REDUCE (Expander Gain Reduction):Valid range: 0 to –36dB, in 1dB steps.
This sets the limit on the amount of gain reduction caused by the expander.
GAIN (Make-up Gain):Valid range: 0 to 30dB, In 1dB steps.
Gain is used to compensate for the gain reduction caused by the compressor. Because the compressor is
reducing the gain (or level) of the signal, the ability to add a fixed amount of make-up gain at the output is
provided so that an optimum level can be reached.
DYNAMICS

Zaxcom ZFR400 Setup Menu
19
SETUP MENU
Test Tone




The ZFR400 has an internal tone generator so the signal chain can be properly gain staged. From this menu
pressing the INC key will turn on the tone generator pressing the INC key will cycle trough the different tone
options (500Hz at -20, 1000Hz at -20 or 500Hz at full scale).
Key Lock On Boot Up
This menu sets what happens to the keys on the face of the ZFR400 after boot-up.
LOCKED - After boot-up has completed, the ZFR400 will automatically lock and the keys will not function.
This is to prevent accidental changes to the settings. To unlock the keys at any time - simultaneously press
the MENU and INC key 5 times.
UNLOCKED - After boot-up the keys will remain unlocked. In unlocked mode the keys can still be locked
going in to the lock screen in the main menu and wait 5 seconds.
ERX Firmware Update
This menu will only appear if ZaxNet is set to transmit (TX) mode
This menu is used to update the firmware on an ERX receiver. If ZaxNet mode is set to transmit (TX) then
this menu will appear and allow for ERX firmware to be updated.
For complete update instructions see the FIRMWARE section in the back of this manual.
Low Battery Stop
Low battery stop will set the amount of time, after a low battery warning occurs, the ZFR400 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 ZFR400 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 ZFR400
will continue to record for the time set here - then it will close the file and stop recording.
LOW BATT STOP:
NEVER STOP
KEY LOCK ON BOOT:
UNLOCKED
TEST TONE: ON
I I I
PRESS TO SEND
ERX PROG FILE

Zaxcom ZFR400 Setup Menu
20
OLED Brightness Adjust
This setting adjusts the brightness of the OLED display. The brightness setting is from 0 to 3 with 3 being the
brightness.
OLED Display Dim
This setting adjusts the brightness of the OLED display. The brightness can be set from 0 to 3 with 3 being the
brightest and 0 the dimmest.
Information Page
This page displays the current firmware version, the serial number, the DSP version, and the option code.
Hide Encryption Menu
This setting will hide the encryption menu. A hidden encryption menu allows for quicker navigation and
prevents accidental changes.
HIDDEN - The encryption menu doesn’t appear when cycling through the menu settings.
DISPLAYED - The encryption menu will appear.
Encryption Code Set
If an encryption code is set the ZaxNet transmitted audio will be encrypted and can only be listened to if
the receiver has the matching encryption code entered. When receiving an audio signal and the codes do
not match, all that will be heard is white-noise or silence. So if using encryption it is important to make
sure the matching receiver has the same code.
These two sets of numbers are formed into a single six-digit encryption code which provides a total of
16,777,216 possible combinations.
Please note that both of these codes should be set to 000 for normal un-encrypted operations
Adjusting the encryption code
1. Momentarily press the MENU key to advance to the next character.
2. To change the designated character, press the INC or DEC key.
3. To exit this page, press and hold the MENU key for 1 second.
ENCRYPTION MENU:
ON
- - - INFO - - -
FIRMWARE V2-03
SN: 1234 DsP:1B (ZHD)
OPT = 03
ID1: 000 ID2: 000
OLED BRIGHTNESS:
3
DISPLAY DIM:
OFF (NORMAL)