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Lectrosonics R1A Synthesized UHF Beltpack IFB Receiver

With $75 Purchase »
Your Price: $569.00
List Price: $849.00

Availability: In Stock

Rent For: $20.00/day
* Block/Frequency
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Sales SKU: LECIFBR1A-19|LECIFBR1A-20|LECIFBR1A-21|LECIFBR1A-22|LECIFBR1A-23
Product Code: IFBR1A

NOTE: Although discontinued by the manufacturer, we have several units left: Block 19 (2), Block 20 (5), Block 21 (10), and Block 22 (11). As our stock fluctuates daily, we will notify you if we cannot fulfill your request.


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 R1a receiver provides simplicity and flexibility in a package that is intuitive for untrained users to operate.

The receiver is housed in a rugged machined aluminum package and further protected by a leather pouch with an integrated belt clip. The belt clip is removable to reduce its size and allow mounting into other types of bags and belt-worn mounting systems common in field production. An optional spring-loaded belt clip provides secure mounting on a wide variety of belts, pockets and fabrics. Please select frequency block when ordering.

Additional Specs/Features:

  • Preset frequency can be set without power or transmitter signal
  • Scan mode stores up to five additional frequencies
  • Multi-color LED and rotary control for programming and operation
  • High sensitivity for extended operating range indoors or outdoors
  • Rugged machined aluminum housing
  • Attached battery door
  • 8 hours battery life (alkaline)
  • 20 hours battery life (lithium)
  • 256 frequencies in 100 kHz increments
  • Microprocessor controlled
  • Pilot tone squelch
  • Compandor noise reduction

RENTAL NOTE: Our Rental Department offers select variations of this product. Please call or click on the "Request A Rental Quote" link to inquire.

CONSUMER ALERT: This particular wireless microphone device operates in portions of the 617-652 MHz or 663-698 MHz frequencies. Beginning in 2017, these frequencies are being transitioned by the Federal Communications Commission (FCC) to the 600 MHz service to meet increasing demand for wireless broadband services. Users of this device must cease operating on these frequencies no later than July 13, 2020. In addition, users of this device may be required to cease operations earlier than that date if their operations could cause harmful interference to a 600 MHz service licensee’s wireless operations on these frequencies. For more information, visit the FCC's wireless microphone website or call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC).

  • Frequency Conrol: 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: > 70 dB
  • Third Order Intercept: 0 dBm
  • Frequency Response: 100 Hz to 10 kHz, (± 1db)
  • Pilot Tone: 29.997 kHz, 2 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.
  • Power Requirement: 9V alkaline battery lasts about 8 hours, 9V lithium battery lasts about 20 hours
  • Power Consumption: 60 mA
  • Dimensions: 3.6 x 2.4 x 0.8 in (housing only)
  • Weight: 7.3 oz with battery

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