The Ultimate in Sending Audio to a Camera

 Firmware | Manual

Send the mix and timecode to the cam

The TRX900CL Camera Link is total sound bag solution for the transmission of audio and timecode to both a camera mounted QRX receivers and ERX series monitor receivers. The camera link sends a two-channel of audio with embedded timecode via UHF to camera.

The Camera Link also has a built in two-channel timecode stamped recorder, a full ZaxNet 2.4 GHz IFB / timecode transmitter and an IFB transceiver.

Extra detail was considered in the Camera Link’s design to optimize it for use in sound bags in order to eliminate spurious radiation that can affect adjacent receivers.

The unit has both stereo line level balanced inputs as well as sample rate converting AES inputs.


The Camera Link is compatible with all Zaxcom receivers, but works optimally with the QRX235 outfitted with QIFB option and the ERX2TCD receiver because of their ability to receive and output both audio and timecode.

Camera Link Features:
■ All in one solution – Two channel audio transmitter  / ZaxNet Transmitter & Receiver / 2-channel Recorder
■ Small size & weight
■ Ultra-low 2.13 Watt power consumption
■ 40 MHz frequency band with two switched band pass filters
■ Single RF transmission of two audio channels and timecode ensuring no intermodulation
■ 100% digital compander free transmission that uses half the bandwidth of traditional analog solutions
Digital Modulation
Encrypted Audio
Intermodulation Resistant
Internal Backup Recording
Technical Details
TRX900CL Power Output: 10 / 50 / 100 mW – Software Selectable*
RF Modulation: Proprietary Digital Method
RF Frequency Range: 518.0 to 850.0 MHz (Typical Blocks are 40 MHz wide)
RF Frequency Step: 100 KHz
RF Bandwidth: 200 KHz
Channel Separation: 500 KHz (700 KHz recommended)
Antenna Connector: 50 ? SMA Female
Emission Designator: 180 KV2E
FCC Part: 74.861
Dynamic Range: 114 dB
Distortion: 0.002%
Frequency Response: Mode 0: 20 Hz to 16 kHz / T & M Mode 0.2 Hz to 16 kHz
System Group Delay: 3.5 ms
Audio input connector TA5 male
Analog Input Range: -10 to +4 dBu
Analog input type balanced line level
Audio input Impedance: 4.7 k ?
ADC Bit-Depth: 24 Bits
ADC Sampling-Rate: 48 kHz
AES input Balanced with sample rate conversion
Sample rate range 32 Khz to 96 Khz
Clock Accuracy: 1.54 PPM (1 Frame Out in 6 Hours)
Timecode Type: SMPTE
Timecode Frame-Rates: 23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF
Media: MicroSD Card (Flash Memory)
File Format: .ZAX
Recording Time: 96 Hours (16 GB Card)
RF Frequency Range: 2.403 to 2.475 GHz
RF Modulation: Digital Spread Spectrum
RF Frequency Step: 0.001 GHz (1 MHz)
RF Bandwidth: 1 MHz
Channel Separation: 2 MHz
Sensitivity: -96 dBm
RF power output TBD
Weight: 7.3 oz
Dimensions (H x W x D): 1”x 3.55” x 3.23”
Display: Graphic LCD
Power consumption: 2.13 watts
*Power measured pre-output band pass filter