Zaxcom QRX235 User manual

1
User Manual
Published August 2014
Software QRX Version 3.45
QIFB Version 1.56
QRX235
Your Sound Amplified

2
KNOWING YOUR QRX235 RECEIVER .............................................................................................................. 4
HOME SCREEN EXPLAINED ............................................................................................................................ 7
MAIN MENU ................................................................................................................................................. 9
NAVIGATING THE MAIN MENU .....................................................................................................................................9
EXITING THE MAIN MENU............................................................................................................................................9
FREQUENCY SELECT..................................................................................................................................................... 9
TRANSMITTER GAIN ADJUST .........................................................................................................................................9
UNIT CODE SET ........................................................................................................................................................10
RECEIVE SIGNAL SELECT .............................................................................................................................................10
TEST TONE OUTPUT ..................................................................................................................................................11
FREQUENCY SCAN.....................................................................................................................................................11
How to scan for a clear frequency .......................................................................Error! Bookmark not defined.
Selecting the frequency.................................................................................................................................... 12
EXTENDED MENU.........................................................................................................................................13
NAVIGATING THE EXTENDED MENU.............................................................................................................................13
EXITING THE MAIN MENU..........................................................................................................................................13
SINGLE /DUAL MODE SELECT.....................................................................................................................................13
AES OUTPUT SELECT.................................................................................................................................................13
AES OUTPUT SELECT.................................................................................................................................................13
IFB OUTPUT MIX .....................................................................................................................................................14
QIFB ENABLE ..........................................................................................................................................................14
TRANSMITTER REMOTE CONTROL................................................................................................................................14
TIME CODE JAM SOURCE ...........................................................................................................................................14
ANALOG OUTPUT ROUTING........................................................................................................................................15
QRX SOFTWARE UPDATE...........................................................................................................................................15
RECEIVE SIGNAL SELECT .............................................................................................................................................16
BACKLIGHT ADJUST ...................................................................................................................................................16
LED BRIGHTNESS SET................................................................................................................................................16
BLUE LED METER MODE ...........................................................................................................................................17
ENCRYPTION CODE SET..............................................................................................................................................17
IFB OPTION MENU .......................................................................................................................................18
NAVIGATING THE IFB OPTION MENU...........................................................................................................................18
EXITING THE MAIN MENU..........................................................................................................................................18
IFB HOME SCREEN ...................................................................................................................................................18
IFB STATUS /TRX TRANSPORT CONTROL .....................................................................................................................18
IFB INPUT MIX ASSIGN..............................................................................................................................................19
REMOTE POWER MODE.............................................................................................................................................19
TIME CODE SET ........................................................................................................................................................20
TIME CODE FRAME-RATE SELECT ................................................................................................................................20

3
IFB EXTENDED MENU ...................................................................................................................................21
NAVIGATING THE IFB EXTENDED MENU .......................................................................................................................21
EXITING THE MAIN MENU..........................................................................................................................................21
INPUT TRIM SET .......................................................................................................................................................21
OUTPUT TRIM SET ....................................................................................................................................................21
IFB FREQUENCY SET..................................................................................................................................................21
IFB MODE SET .........................................................................................................................................................22
GROUP ID SET .........................................................................................................................................................22
IFB VOTING ENABLE .................................................................................................................................................22
UPDATING THE IFB SOFTWARE ...................................................................................................................................23
TIME CODE OUTPUT LEVEL SET...................................................................................................................................23
TIME CODE FRAME RATE SET .....................................................................................................................................23
TIME CODE JAM MODE SET .......................................................................................................................................23
TIME CODE DELAY SET ..............................................................................................................................................24
TIME CODE MUTE TIME SET.......................................................................................................................................24
AUDIO DELAY SET.....................................................................................................................................................24
ZAXNET OUTPUT ENABLE...........................................................................................................................................24
IFB TRANSMIT POWER LEVEL SET................................................................................................................................24
SEND RECORD COMMANDS........................................................................................................................................25
IFB ENCRYPTION SET.................................................................................................................................................25
WIRING DIAGRAMS......................................................................................................................................26
AUDIO OUTPUT CONNECTORS -TA5M........................................................................................................................26
Single Analog Channel out of one TA5............................................................................................................. 26
Two Analog Channels out of one TA5 .............................................................................................................. 26
AES Digital out of TA5 ...................................................................................................................................... 27
TIME CODE CONNECTOR -3.5MM ..............................................................................................................................28
Time Code in to QRX......................................................................................................................................... 28
Time Code out of QRX ...................................................................................................................................... 28
IFB AUDIO CONNECTOR -3.5MM ...............................................................................................................................28
SERIAL LOOP CONNECTOR -USB (RS-485) ..................................................................................................................29
OPERATING FREQUENCIES............................................................................................................................30
ZAXNET REMOTE CONTROL AND TIME CODE ................................................................................................................30
UHF AUDIO.............................................................................................................................................................30
ANTENNA CUTTING CHART...........................................................................................................................31
FIRMWARE ..................................................................................................................................................32
UPDATING THE QRX SOFTWARE USING A TRX TRANSMITTER ...........................................................................................33
SPECIFICATIONS...........................................................................................................................................36
PRODUCT SUPPORT ....................................................................................ERROR! BOOKMARK NOT DEFINED.
ZAXCOM WARRANTY POLICY AND LIMITATIONS...........................................................................................39

Zaxcom QRX235 Rear
4
Knowing Your QRX235 Receiver
Front
1. LCD Display
2. INC Key - Used to increase the parameters of a menu item.
3. UHF Antenna Connectors (2) - SMA connectors.
4. Dec Key - Used to decrease the parameters of a menu item.
5. Menu Key - Press to advance to the next menu item.
6. Receiver Status Indicators
•Solid Red - That receiver is not getting a valid signal.
•Solid Green - That receiver is receiving a valid signal.
7. A/B Key - Press to alternate between receivers in dual mode.
8. ZaxNet 2.4GHz Antenna Connector (1) - SMA connector (only with QIFB option).
9. Power Key - Press and hold for 2 seconds to power up the QRX.
Press and hold for 5 seconds to power down the QRX.
2
4
1
3
5
6
7
3
8
9

Zaxcom QRX235 Rear
5
Rear
1. IFB Audio - (available with the QIFB option) 3.5mm TRS.
•This connector will accept external audio for IFB transmission when the QIFB is in transmit mode.
•This connector will output ZaxNet audio when the QIFB is in receive mode.
2. DC Power Input - The QRX uses a Switchcraft 761K connector.
3. Audio out connectors (2)- TA5M.
These connectors will output the audio from the QRX. The same connectors can be used to
output either analog audio or AES audio. The audio assignments for the TA5 connectors are
set in the extended menu.
4. Time Code In/Out - (available with the QIFB option) 3.5mm TRS.
This connector will input or output time code depending on how the connector is wired.
5. Serial Loop-The USB style connectors on the back of the QRX will allow multiple QRXs to
share a single common QIFB option. For example one master QRX with a QIFB option board
can be connected to 3 QRXs with no option boards. The QRXs without option boards will
behave as if they have an IFB option board and will send remote control commands over the
serial link to the master QRX.
Note: The USB connectors are NOT generic USB connectors that can be used as a connection
to any computer. These are used to exchange RS-422/RS-485 commands and a special cable is
required to do this please see the wiring diagram section of this manual for more information.
4
2
1
5
3

Zaxcom QRX235 Side
6
Side
Side Mounted LEDs - The LEDs give you visual indication if RF and / or audio is being received by the
QRX. The LED settings are adjusted in the extended menu. There are three LEDs per group. There is
one group for each channel. The group to the top represents channel one, the group below is
channel 2, the next group is channel 3, and the group on the bottom is channel 4.
The LED modulation colors are as:
When the signal hits -40 dBFS
When the signal hits -20 dBFS
When the signal hits -10 dBFS
When the signal hits -8 dBFS
When the signal hits -5 dBFS
ZaxNet Antenna Connector - SMA connector When the QRX has the QIFB option installed this is
where the ZaxNet antenna will be connected
Channel 1 Group
Channel 2 Group
Channel 3 Group
Channel 4 Group
ZaxNet
Antenna SMA
Ct

Zaxcom QRX235 Home Screen
7
Home Screen Explained
Single Mode
Dual Mode
Receiver
Indicates the receiver
A – Left receiver
B – Right receiver
Audio level
The audio level indicator (one for each channel), extends from the left to the right. The vertical
bar to the right is the -20dBFS mark. A single meter indicates a mono signal is being received.
Two meters indicate that a stereo signal is being received.
Transmitter’s battery level
The diagram of the battery displays a rough percentage of battery capacity provide you have set
the correct battery chemistry in the TRX transmitter menu. The battery symbol will start to blink
just before transmitter shutdown.
Transmitter’s Record status
•S (STOP) Stopped or does not have a card installed
•R (REC) Recording
•P (PLAY) Playing back
•– (NO SIGNAL) Occurs if the associated transmitter is turned “OFF”

Zaxcom QRX235 Home Screen
8
Antenna is being used
Indicates the signal is being received by ANTENNA 1 (left antenna connector)
Indicates the signal is being received by ANTENNA 2 (right antenna connector)
RF signal strength
A staircase pattern with the lowest step (low signal strength) on the left and building up as it
progresses to the right (higher signal strength)

Zaxcom QRX235 Main Menu
9
Main Menu
Navigating the Main Menu
•To enter the main menu press the MENU button.
•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.
Or
•Cycle through the menu items.
Frequency Display and Select
Single Receiver Mode Dual Receiver Mode
The Frequency Select menu is where the QRX receive frequency is set. This frequency needs to match the
transmitter’s frequency.
To adjust the frequency
•Press the INC key and DEC key to adjust the frequency.
•In dual receive mode pressing the A/B key will toggle between the A and B frequency.
•The >will indicate the frequency being adjusted.
Transmitter Gain Adjust
This menu is only available when Transmitter Remote Control is set to “ON” in the Extended Menu.
Single Receiver Mode Dual Receiver Mode
From this page you will have the ability to remotely change the gain of the corresponding TRX transmitter
with ZaxNet if you have the QIFB option installed.
The transmitter gain menu will display the audio levels for the transmitter with marks at the -20dBFS and
0dBFS.
To adjust the gain
•Press the INC key to raise the transmitters gain. As you increased the gain will see “+ + +” on the QRX.
•Press the DEC key to lower the transmitters gain. As you decrease the gain you will see “- - -” on the
QRX.
•In dual mode pressing the A/B key will allow you to toggle between the two transmitters.
CH A 567.4
CH A> 567.4
CH B 570.0
TX GAIN TXA
GAIN

Zaxcom QRX235 Main Menu
10
Unit Code Set
This menu is only available when Transmitter Remote Control is set to “ON” in the Extended Menu.
Single Receiver Mode Dual Receiver Mode
The unit code menu tells the QRX which TRX transmitter to control. The unit code as a way to assign
each transmitter an individual number of your choice to be controlled by. This allows the individual
transmitter that the QRX is receiving to be independently controlled.
Receive Signal Select
Single Receiver Mode Dual Receiver Mode
This menu is where the QRX’s modulation mode is selected. The modulation is simply the way a
transmitter “modulates”, or sends, its signal to the QRX This mode setting needs to match the
modulation mode that is set in the corresponding transmitter is set to - if the two setting do not match
the QRX will not be able to receive and decode the signal from the TRX transmitter.
In dual receive mode pressing the A/B key will toggle between the A and B format.
The >will indicate the receiver is being adjusted.
•XR Mono - Select when extended range modulation (XR) on the TRX transmitter is being used. XR
modulation is the recommended setting.
•Stereo - Select when using a TRX900CL - Camera Link, TRXLA2S, or a TRXLT2S stereo transmitter.
•Mono - Select when using a mono transmitter and XR modulation is not available in the software.
•EU - Select when using a transmitter that is set up for European broadcast standards.
RXA FMT MONO-XR RXA
>
FMT MONO-XR
RXB FMT STEREO
RXA UNIT: NONE
RXA> UNIT: NONE
RXB UNIT: NONE