Zaxcom VRX1 VHF IFB Audio Receiver

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The Zaxcom VRX1 is an analog VHF IFB audio receiver built to monitor audio and cue talent in the film, television, and broadcast industries. Simply connect an earpiece or headphones to the 3.5mm output for clean, reliable audio performance.

Among its core features is an intuitive voice prompt system, voting, frame-specific audio delay, an adaptive squelch, headphone equalization, and multiple power options all in a rugged, easy-to-use device.

Technology
VRX1 features an innovative direct conversion design to receive audio that reduces all forms of RF interference while extending battery life.

Connectivity
VRX1 operates in the VHF 192-217 MHz frequency range and is pre-programmed with 10 standard channels for quick setup:

Compatibility
VRX1 is compatible with analog VHF FM Comtek transmitters operating on 192-217 MHz. This allows you to mix and match VRX1 with other Comtek IFB receivers connected to the same transmitter.

Current Transmitter Compatibility:
• Comtek BST 75-216
• Comtek BST 25-216
• Comtek M-216

Operation, Voice Prompts & Voting
Front A/B and * buttons control settings and can be programmed to limit control or be completely disabled.

Voice prompts announce the current channel selection, battery life, and other key settings through headphones. Voice prompts can also adjust key settings, providing a seamless interaction without needing to look down at the device.

Voting allows VRX1 to automatically connect to the strongest transmitter signal when more than one transmitter is in operation.

Voice prompts and voting can be disabled.

Audio Delay
VRX1 has audio delay settings that can be customized from 1 to 15 frames.

Squelch
An adaptive squelch algorithm intelligently minimizes noise when a transmitter signal is absent.

Camera Audio
The 3.5mm audio output is selectable to be unbalanced or balanced allowing you to feed a single track of audio to the input of a camera.

Power
VRX1 can be powered through (2) AA alkaline, NiMH, or lithium batteries with the following operating hours:

Alkaline - up to 9 hours
NiMH - up to 13 hours
Lithium - up to 17 hours

The USB-C port provides power when connected to a power source. Additionally, you can charge rechargeable NiMH batteries without removing them from the receiver by connecting a USB-C power source. LED indicators provide charging status.

• IFB Receiver:
  • Receiver Type: Direct Conversion
  • RF Frequency Range: 192-217 MHz (76-86 MHz optional)
  • RF Sensitivity: .8uV for 20dB
  • Modulation: FM
  • Minimum Channel Spacing: 100KHz
  • RF Frequency Channels: 10
  • Frequency Steps (in Analog Mode): 25KHz
  • Spurious RF rejection: > 90dB
  • Antenna: Headphone cable
• Receiver Audio:
  • System Delay: 4mS to 400mS adjustable (minimum 4mS of overall receiver latency in Analog FM mode)
  • Audio Bandwidth: 16KHz
  • Audio Signal to Noise Ratio: 97dB (signal full quieting)
  • Analog FM Distortion: < 1%
  • Output Connector: 1/8" Stereo (3.5 mm)
  • Minimum HP Impedance: 16 ohms
  • Audio Output Level: 2.8V max driving 16 ohms
  • Output Type: Headphone or balanced differential
• Power:
  • External: via USB-C
  • Internal: NiMh batteries up to 13 hours (2450 mA battery)
• Physical:
  • Dimensions (H x W x D): 4.60 x 2.46 x .64 in
  • Weight: 4 oz, including NiMh batteries