QRX235

Four-Channel Receiver with ZaxNet

QRX235_GI-S
QRX235_RearGI-S
 Firmware | Manual

The missing Link

QRX235 is successor to the QRX100 boasting significantly enhanced distance and range.

Three key components give QRX235 its enhanced distance / range:

  • New digital modulation
  • Enhanced receiver design giving it maximum sensitivity while lowering its noise floor
  • The elimination in any difference between single and dual mode

QRX235 receives up to 4 channels of 100% digital audio from up to 2 transmitters, any combination of mono and stereo transmitters is accepted.  The audio output can be either analog or AES.  It also features our patented side mounted LED’s, these provide visual confirmation of audio and RF reception. The LED’s are very bright and are visible with the QRX235 mounted in its Zaxcom camera mount even in bright sunlight.

The ZaxNet QIFB option is available in the QRX235 – The QIFB allows you to send or receive ZaxNet audio and timecode, as well as TRX commands from your QRX235.

Digital Modulation
Encrypted Audio
Intermodulation Resistant
ZaxNet
Technical Details
RECEIVER
Single Mode Receiver Type: True diversity single conversion digital demodulator
Dual Mode Receiver Type: Antenna diversity single conversion digital demodulator
RF Modulation: proprietary digital method
RF Frequency Range: 518.0 to 872.0 MHz (blocks are 20 to 36 MHz wide)
RF Frequency Step: 100 KHz
RF Bandwidth: 200 KHz
Channel Separation: 500 KHz (700 KHz recommended)
Sensitivity: -110 dBm
Antenna Connector: 50-ohm SMA female
RECEIVER AUDIO – ANALOG OUTPUT (X 4)
Dynamic Range: 114 dB
Distortion: 0.001%
DAC Bit-depth: 24 bits
DAC Rate: 48 kHz
Connector: TA-5M
Audio Output Level: Line: -10 to 0 dBm active balanced
RECEIVER AUDIO – DIGITAL OUTPUT (X4)
Signal Format: AES Balanced
Audio Output Connector: TA-5M
IFB TRANSMITTER (QIFB OPTION ONLY)
RF Power Output: 50 mW
RF Modulation: Digital Spread Spectrum
RF Frequency Range: 2.403 to 2.475 GHz
RF Frequency Step: 0.001 GHz (1 MHz)
RF Bandwidth: 1 MHz
Channel Separation: 2 MHz
Antenna Connector: 50-ohm SMA Female
Emission Designator: 180 KV2E
FCC Part: CFR Title 47, Part 18IFB
2.4 GHZ AUDIO TRANSMITTER (QIFB OPTION ONLY)
Dynamic Range: 103 dB
Distortion: 0.01%
Frequency Response: 20 Hz to 12 kHz
System Group Delay: 10 ms
IFB Audio Input (QIFB Option Only)
Connector: Stereo 1/8? (3.5 mm)
Type: Balanced / Unbalanced
Level: -10 dBu
Impedance: 10 k ?
ADC Bit-depth: 24 bits
ADC Sampling Rate: 48 kHz
TIMECODE INPUT (QIFB OPTION ONLY)
Connector: Stereo 1/8? (3.5 mm)
Level Range: 1 to 5V, P-P
Impedance: 10 k ?
TIMECODE OUTPUT (QIFB OPTION ONLY)
Connector: Stereo 1/8? (3.5 mm)
Level Range: .2 to 5V, P-P
Impedance: 8 ?
TIMECODE READER / GENERATOR (QIFB OPTION ONLY)
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
MISC.
Weight: 6.0 oz (170 grams)
Dimensions: 1.25? x 3.25? x 5.25? (32mm x 83mm x 133mm)
External Power: 9 to 18 VDC (300mA @ 12VDC)
Internal Power: N/A
Display: Graphic LCD Panel