The Clear-Com PRC-2 is a UHF Wireless IFB receiver beltpack for use with a wireless IFB Intercom system.
Wireless IFB (interruptible fold back) systems are used for talent cueing and crew communications in broadcast and motion picture production. In other cases, the IFB system is used by directors and other management to monitor program audio during a production. The IFB PRC-2 receiver provides simplicity and flexibility in a package that is intuitive for untrained users to operate.
The default frequency of the receiver is set by two rotary switches on the side panel. Up to five additional frequencies can also be programmed into the receiver memory using the scan mode.
The design uses +/-20 kHz FM deviation for efficient use of the bandwidth, with compandor noise reduction circuitry for an excellent signal to noise ratio.
The receiver will drive a wide variety of earbuds, headphones and induction neck loops at substantial levels, with loads from 16 Ohms to 600 Ohms.
The receiver is housed in a rugged machined aluminum package. A spring-loaded belt clip provides a secure mounting on a wide variety of belts, pockets and fabrics.
Preset (default) frequency can be set without power or transmitter signalFrequency agile with 256 frequenciesScan mode stores up to five additional frequenciesMulti-color LED and rotary control for programming and operationHigh sensitivity for extended operating range indoors or outdoorsRugged machined aluminum housingSpring-loaded belt clipAttached battery door8 hours battery life (alkaline)20 hours battery life (lithium)
Operating Frequencies: 486.4 to 691.1 MHz
Block 19: 486.4 to 511.9 MHzBlock 20: 512.0 to 537.5 MHzBlock 21: 537.6 to 563.1 MHzBlock 24: 614.4 to 639.9 MHzBlock 25: 640.0 to 665.5 MHzBlock 26: 665.6 to 691.1 MHz
Frequency control: Crystal Controlled PLL Sensitivity: 1 uv (20 dB SINAD)
Signal/Noise ratio: 95 dB A-weighted
Squelch quieting: 90 dB
AM rejection: 50 dB, 10 uV to 100 mV Modulation acceptance: ±20 kHz
Spurious rejection: Greater than 70 dB
Third order intercept: 0 dBm
Frequency response: 100 Hz to 10 kHz, (±1db)
Pilot tone: 29.997 kHz, 4.5 kHz deviation (fixed crystal controlled)
Audio output: 1V RMS into 50 Ohms minimum
Antenna: Headphone cable
Programmable memory: Switches set default frequency; up to five additional frequencies can be stored in memory
Front panel controls: Single knob controls Audio Output Level, Power on, programming and Scan Frequency Selection
Indicators: Multi-color LED indicator for power on and battery status. Blinks to indicate channel number and during scanning.
9V alkaline battery lasts about 8 hours9V lithium battery lasts about 20 hoursPower consumption: 60 mA Weight: 7.3 oz with battery Size: 3.6 x 2.4 x 0.8 inches (housing only) (belt clip and knob extend beyond the housing)
Power consumption: 60 mA
Weight: 7.3 oz with battery
Size: 3.6 x 2.4 x 0.8 inches (housing only) (belt clip and knob extend beyond the housing)
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