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Transmission Transmission



Professional FM Relay Receiver (F connector)

From: Inovionics Broadcast
  • Weight:8 lb

  • Shipping Dimensions:23x 16x 2 in

-Easy to set-up and use
-Selectable wide/narrow IF bandwidth
-Composite/MPX and balanced L/R stereo outputs
-LCD Display
-Menu-driven selection of functions and readouts

Inovonics secures its place at the forefront of 21st century technology with the Model 631—the latest frequency-agile, digitally tuned receiver for FM translator and other off-air applications. With menu-driven access of display and function selections, the 631 gives you a dual IF bandwidth to quickly clear up adjacent-signal problems. Antenna alignment will be a breeze with the 631's crisp readouts of signal strength and multi-path distortion. You can remotely control or monitor its selectable options and alarms, and high-resolution bar graph readouts let you quickly see all incoming RF and MPX/stereo audio levels, making the 631 as easy to use as it is to afford.


-TUNING RANGE: 87.5 –108.1MHz in 100kHz steps.
-ANTENNA INPUT: 75-ohm, ‘F’ connector (50-ohm option with ‘N’ connector available).
-RECEIVER SENSITIVITY: MONO: 10μV for 60dB S/N, STEREO: 150μV for 60dB S/N.
-RECEIVER SELECTIVITY: WIDE: –6dB at ±140kHz, NARROW: –6dB at ±80kHz
-DISTORTION: (in MPX or L/R audio) WIDE: <0.2% THD, NARROW: <0.6% THD
-STEREO SEPARATION: WIDE: typ. >40dB, NARROW: typ. >20dB
-COMPOSITE/MPX OUTPUT: Unbalanced, 75-ohm BNC; adjustable between 2V p-p and 6V p-p at ±75kHz carrier deviation.
-OVERDEVIATION LIMITER: An internal clipping circuit limits the MPX output to a maximum level equivalent to ±100kHz carrier deviation.
-PROGRAM LINE OUTPUTS: Left/Right active-balanced XLR outputs deliver +4dBm at ±75kHz deviation, Frequency response ±0.5dB, 20Hz–15kHz & de-emphasis set by internal jumpers to 75μs or 50μs.
-LOW-SIGNAL MUTING: Composite/MPX and L/R audio muted when incoming RF falls below the user-programmed LOW-SIG level.
-AUDIO LOSS ALARM: Responds to loss of either stereo channel; alarm delay is user-programmable between 5 seconds and 4 minutes.
-FAULT INDICATORS: Front-panel LCD indication of low incoming RF or loss of program audio. Open-collector NPN transistor switches enable remote alarm indication via rear-panel terminal strip.
-POWER REQUIREMENTS: 105-130VAC and 210-260VAC; 50/60Hz; 20W.