INOVONICS 525N AM MODULATION MONITOR: TUNABLE OFF-AIR | 520KHZ - 1720KHZ IN 10KHZ STEPS OR 522KHZ - 1719KHZ IN 9KHZ STEPS | ALARMS | LCD

INOVONICS 525N AM MODULATION MONITOR: TUNABLE OFF-AIR | 520KHZ - 1720KHZ IN 10KHZ STEPS OR 522KHZ - 1719KHZ IN 9KHZ STEPS | ALARMS | LCD

INOVONICS 551 HD RADIO MODULATION MONITOR: 3U PACKAGE WITH 7-INCH HI-RES TOUCH SCREEN & FULL-TIME LED METERS| TUNABLE OFF-AIR ANALOG FM

INOVONICS 551 HD RADIO MODULATION MONITOR: 3U PACKAGE WITH 7-INCH HI-RES TOUCH SCREEN & FULL-TIME LED METERS| TUNABLE OFF-AIR ANALOG FM

INOVONICS 531N FM MODULATION MONITOR: TUNABLE OFF-AIR | 76MHZ – 108MHZ | ALARMS | SCA INJECTION | RDS DECODING | AM NOISE | FULL NETWORK

SKU
INO-531N
MFR#
531N
was $4,000.00 Special Price $3,600.00
Availability: Out of stock
ncorporating all the necessary features for station setup, regulatory compliance, and remote monitoring, Inovonics' 531N is the ultimate choice for essential FM signal monitoring. Dependable, direct input and off-air reception lets you keep a sharp eye on your total RF signal performance whether you’re right at the transmitter site or half way around the world.

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Discontinued : 

The high-resolution LED bargraph displays are easy to read, and a "floating dot" program peak marker eliminates any ambiguity in the total-mod measurement. Off-air readings are qualified by Inovonics' exclusive multipath indicator, which also aids in antenna alignment during initial station build-outs. In addition, readouts of signal strength and synchronous AM noise qualify the incoming signal and validate measurements.

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Features:

  • Complete set of metering and measurement tools to ensure FM broadcast regulatory compliance worldwide.
  • Separate inputs for Antenna, High Level ʻdirectʼ RF, and composite signal measurements.
  • Full-time display of Signal Strength and Multipath effects, plus Synchronous AM noise output (BNC) to validate readings and aid in antenna alignment.
  • Synchronous AM Noise Monitoring – an exclusive with Inovonics
  • Composite and Balanced analog Left and Right line outputs.
  • Front panel metering for subcarrier injection levels: 38kHz, 57kHz (RDS), 67kHz, & 92kHz.
  • Advanced Metering includes an FFT Spectrum Analyzer for the MPX, Left/Right XY plots and audio levels over time
  • Alarms for Peak Overmodulation, Signal Loss, Program Audio Loss and Multipath.
  • Rear-panel closures to ground enable remote alarm indications and preset station switching.
  • “Responsive” Remote Control Web interface with live audio streaming.
  • SNMP control and support.

 

Specifications: 

OFF-AIR RECEIVER SECTION

Type

  • Double-conversion superhet circuit with proprietary ultra-linear, noise-rejecting pulse-counting FM detector

Tuning Range

  • 76MHz – 108MHz  in 100kHz increments

Station Presets

  • 6 user-programmable pushbutton presets; local or remote selection

RF Inputs

  • F connector for 75-ohm antenna
  • BNC connector for high-level 50-ohm RF sample; 1V - 7V r.m.s.

Receiver Sensitivity

  • 10μV (10dBf) for 50dB mono quieting; 250μV (60dBf) required for valid Total Modulation reading

Receiver Selectivity

  • ±0.25dB, 20Hz - 50kHz; –1.5dB or less at 100kHz (see Figure 1); –35dB (typ) at 200kHz (see Figure 2)

Baseband Output

  • BNC composite/MPX demod output; 3Vp-p at 100%-modulation.

RSSI (Incoming Signal Level)

  • Independent front-panel LED bargraph metering of the relative strength of the incoming carrier

Multipath Distortion Measurement

  • Independent front-panel LED bargraph metering of the relative degree of multipath reception-distortion effects

AM Noise Measurement

  • Front-panel metering may be switched to show the relative level of the incidental, synchronous AM noise component of the FM carrier. AM noise is routed to a separate BNC output and also monitored by headphones when selected.

 

FM BASEBAND MEASUREMENTS

Baseband Input

  • Adjustable BNC composite/MPX input to stereo decoder and subcarrier measurement circuitry. Accepts 100%- modulation levels (typical 3V p-p) equating to ±75kHz carrier deviation.

Composite/MPX Metering

  • 58-segment LED bargraph display has quasi-peak response with floating peak hold. Switchable between positive deviation, negative deviation and highest of either

Meter Resolution

  • 1% accuracy between 80% and 100% carrier modulation; 2% resolution between 46% and 80% (100% = ±75kHz carrier deviation)

Metering Integration

  • User-selectable at 0.1ms, 0.2ms, 0.5ms and 1.0ms

Meter Frequency Response

  • +0/–1%, 10Hz - 100kHz

Peak Flasher

  • Programmable in 1% increments between 95% and 120% of total carrier modulation.

 

STEREO DEMOD PERFORMANCE

Switch-Selected Composite/MPX Input

  • Direct connection to the demodulated output of the offair receiver section
  • BNC connector accepts an external baseband input 3V p-p (adjustable) equivalent to full (±75kHz) carrier deviation

Program Audio Outputs

  • Balanced XLR Left & Right channel stereo program outputs deliver +4dBm at 100% monaural modulation (±75kHz carrier deviation)
  • Front-panel headphone jack

Demod Metering Display

  • Dual LED bargraph displays show Left and Right or L+R and L–R demodulated program audio. The display is peak responding between +10dB and –30dB, and average responding between –30dB and – 64dB.

Stereo Audio Frequency Response

  • ±0.5dB, 10Hz - 15kHz

Stereo Signal-to-Noise Ratio

  • Unmodulated (stereo) carrier noise is better than 65dB below 100% modulation with de-emphasis applied.

Distortion

  • <0.075%THD at 400Hz 100% Modulation Mono. No De-Emphasis, unweighted

Stereo Separation

  • 55dB, 50Hz - 15kHz with an external composite/MPX input. In the off-air mode, receiver selectivity limits separation to >45dB, 50Hz - 15kHz (see Figure 3).

Stereo Crosstalk

  • By the M/S or S/M (stereo-difference) method, >60dB, 50Hz - 5kHz, derated to >45dB at 15kHz with external composite/MPX input. In the off-air mode receiver selectivity limits crosstalk to >50dB, 50Hz - 5kHz, derated to >35dB at 15kHz (See Figure 4).

Stereo/Mono Switching

  • Mode switching is automatic with a front-panel indicator; monaural reception may be forced with a front-panel button or from the remote Web Interface.

Program De-Emphasis

  • May be turned on and off from front panel or Web Interface (indicator provided); internal jumper selects 50μs or 75μs characteristic.

 

FM SUBCARRIER MEASUREMENTS

Meter Scaling and Resolution/Accuracy

  • 58-segment LED bargraph display measures stereo pilot and subcarrier levels between 2.6% and 14% with 0.2% resolution and accuracy. Injection percentages refer to 100% = ±75kHz carrier deviation.

Metering Characteristic

  • Peak-responding in all modes

 

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