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Lectrosonics Multi-Frequency Beltpack IFB Receiver (174.100 to 215.750 MHz)
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The IFBR1a-VHF from Lectrosonics is a multi-frequency wireless beltpack IFB (Interruptible Fold Back) receiver that can be used for talent cueing and crew communication in broadcast and motion picture production. In addition, the IFB receiver provides simplicity and flexibility in a package that is intuitive for untrained users to operate.


Purchase for $649.00
Purchase for $649.00
  • Preset Frequency Set with Hex Switches
  • Scan Mode Stores Five Frequencies
  • Multi-Color LED
  • Rotary Control for Programming
Product Info
Manufacturer Part #IFBR1A-VHF
Operating Frequency 174.100 to 215.750 MHz
Channel Frequencies 239
Channel Spacing 175 kHz
Frequency Control Crystal controlled phase locked loop
Sensitivity 1 uv (20 dB SINAD)
Signal to Noise 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, (±1 dB)
Pilot Tone 29.997 kHz, 4.5 kHz deviation (fixed crystal controlled)
Headphone Out Audio: 1 Vrms into 50 ohms minimum
Antenna Headphone cable
Programmable Memory 5 frequencies
Front Controls Single knob controls Audio Output Level, Power On, Programming, and Scan Frequency selection
LED Indicators Tricolor LED for power on, blinks indicating channel number, blinks fast during scan, and turns yellow or red for low battery
Power Requirements Single 9 V alkaline battery for approximately 8 hours operation
Single 9 V lithium battery for approximately 20 hours operation
Power Consumption 60 mA
Dimensions (L x W x H) 3.6 x 2.4 x 0.8" (9.1 x 6.1 x 2.0)
Weight 7.3 oz (207 g) with battery

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