The Zaxcom QRX235 is a Block specific ENG style receiver with QIFB, a built-in 2.4GHz ZaxNet IFB transmitter. The built-in filtering and enhanced receiver design give it maximum sensitivity and a low noise floor.
Zaxcom QRX235 can output AES digital audio or analog audio at -35dB mic level, -10dB consumer level, or 0dB line level on 2 x TA5 connectors. IFB audio is input via an 1/8″ (3.5mm) stereo mini jack. Timecode I/O is also on an 1/8″ (3.5mm) stereo mini jack. The two serial loop USB connectors are for connecting to ZaxMote or other QRX200’s to share the QIFB remote control feature.
Specifications
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 |
512.0 to 692 MHz |
| RF Frequency Step |
100 KHz |
| RF Bandwidth |
100 KHz in ZHD 96, 200 KHz in XR, mono, and stereo modes |
| Channel Separation |
500 KHz |
| Sensitivity |
-110 dBm |
| Antenna Connector |
50-ohm SMA female |
Receiver Audio – Analog Output (x4)
| Dynamic Range |
114 dB |
| Distortion |
0.001% |
| DAC Bit-depth |
24 bits |
| Connector |
TA-5M |
| Audio Output Level |
Line |
Receiver Audio – Digital Output (x4)
| Signal Format |
AES Balanced |
| Audio Output Connector |
TA-5M |
2.4 GHz RF Transmitter (QIFB)
| 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)
| Dynamic Range |
103 dB
|
| Distortion |
0.01% |
| Frequency Response |
20 Hz to 12 kHz |
| System Group Delay |
10ms |
2.4 GHz IFB Audio Input (QIFB)
| Connector |
Stereo 1/8″ (3.5 mm) |
| Type |
Balanced / Unbalanced |
| Level |
-10 dBu |
| Impedance |
10 k Ω |
| ADC Bit-depth |
24 bits |
| ADC Sampling Rate |
48 kHz |
Timecode Input (QIFB)
| Connector |
Stereo 1/8″ (3.5 mm) |
| Level Range |
1 to 5V, P-P |
| Impedance |
10 k Ω |
Timecode Output (QIFB)
| Connector |
Stereo 1/8″ (3.5 mm) |
| Level Range |
.2 to 5V, P-P |
| Impedance |
8 Ω |
Timecode Reader / Generator (QIFB)
| 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 |
