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Zaxcom Receiver Offers Four-Channel Support

Zaxcom has introduced the QRX100, a four-channel RF audio receiver. The QRX100 can receive four channels of audio from up to two Zaxcom stereo or mono digital transmitters, allowing ENG audio professionals to take advantage of the full capabilities of four-channel cameras, says the company. By bundling an optional timecode receiver and IFB transmitter in a single package, the QRX100 will be able to reduce broadcasters' equipment costs, RF bandwidth requirements, and power demands.

Zaxcom has introduced the QRX100, a four-channel RF audio receiver. The QRX100 can receive four channels of audio from up to two Zaxcom stereo or mono digital transmitters, allowing ENG audio professionals to take advantage of the full capabilities of four-channel cameras, says the company. By bundling an optional timecode receiver and IFB transmitter in a single package, the QRX100 will be able to reduce broadcasters' equipment costs, RF bandwidth requirements, and power demands.

"Replicating the capabilities of the QRX100 would require mounting up to four receivers, a sync generator, and an IFB transmitter to the camera, all of which increase the cost and physical weight of supporting four audio channels," said Glenn Sanders, president of Zaxcom, in a statement.

According to the company, the QRX100 uses an industry-standard mounting kit to integrate with any broadcast camera. The device is capable of receiving two separate transmitter signals on two separate frequencies simultaneously, for increased flexibility and ease of use. It can receive one to four channels of 100-percent digital audio and will output the channels in both analog and AES digital formats. Digital modulation of the audio signals should remove concerns of the interference that would typically add distortion to an analog-based ENG system.

"The QRX100 will offer vastly elevated performance compared to slot-in receivers, which offer only single audio-channel operation in most cases," said Sanders. "By replacing this type of receiver, the QRX100 will remove the typical slot-in concerns of limited power supplies, degraded interference rejection, high operating temperatures, and limited compatibility with cameras."

The QRX100 operates in frequency blocks between 512 and 860 MHz with a digital sampling rate of 32 to 196 KHz. At 6 ounces, the QRX100 features a compact profile, and requires a voltage range of 6 to 18 VDC and a power consumption of 200 mA at 12V. Multi-camera serial is supported via RS-422 and RS-485 ports.



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