Belar FMMA-1

Belar FMMA-1 – FM Modulation Monitor/Analyzer

$ 4,743.36 $ 4,973.90

The Belar FMMA-1 is a professional FM modulation monitor and analyzer providing accurate deviation and audio performance measurements for broadcasters.

FMMA-1
$ 4,743.36 $ 4,973.90
Opt-01 Precision FM Demodulator
$ 950.98 $ 997.09
Opt-02 Down Converter
$ 1,054.72 $ 1,100.83
SKU: 101255 Categories: , , , , Tags: , , , , , , , Brand:Belar

Description

Product Description

The Belar FMMA-1 Modulation Monitor/Analyzer is a precision FM signal measurement instrument designed for professional broadcast engineers who demand superior accuracy and reliability. Developed by Belar Electronics, a global leader in broadcast monitoring technology, the FMMA-1 provides comprehensive analysis of FM deviation, pilot tone, stereo separation, and audio quality in one robust unit.

With its advanced digital signal processing (DSP) architecture, the Belar FMMA-1 ensures precise readings of all key modulation parameters, helping engineers maintain compliance with regulatory standards and ensure pristine on-air audio. The analyzer provides true peak deviation measurement, multiplex spectrum analysis, and real-time display of carrier frequency and subcarrier levels.

The intuitive front panel and easy-to-read LED displays allow instant visual confirmation of key signal metrics, while optional remote control interfaces enable detailed off-site monitoring and data logging. Compact and built for continuous 24/7 use, the FMMA-1 is ideal for transmitter sites, network operations centers, and audio laboratories requiring reliable FM signal integrity testing.

Key Features:
• High-precision FM modulation monitor and analyzer
• Real-time measurement of FM deviation, pilot, and subcarrier levels
• Stereo separation and multiplex spectrum analysis
• True peak deviation and frequency offset monitoring
• Front-panel LED and digital readouts for instant feedback
• Optional remote monitoring and data logging interfaces
• DSP-based design for superior linearity and stability
• Compact 19” rackmount chassis for professional installations

Technical Specifications:
• Frequency Range: 87.5 – 108 MHz
• Deviation Range: ± 200 kHz
• Accuracy: ± 0.1% typical
• Audio Outputs: Balanced stereo line, 600 Ω
• Pilot Tone Detection: 19 kHz ± 2 Hz
• Subcarrier Analysis: 38 – 67 kHz
• Power Supply: 115/230 V AC, 50/60 Hz
• Dimensions: 19″ rackmount, 2U height
• Weight: ≈ 6.5 kg

Applications:
• FM transmitter alignment and proofing
• Broadcast signal quality assurance
• Audio performance testing and compliance monitoring
• Continuous transmitter site supervision

Alternative Products:
• Belar FMCS-1L – All-in-One FM Modulation Monitor
• DEVA DB4005 – FM Modulation Monitor
• Inovonics 531 – FM Modulation Monitor

All alternative products are available from Broadcasters Warehouse.

Additional information

Weight5.4431 kg
Product can be split into multiple boxes

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features

MEASUREMENTS: Total Peak Modulation in Percent Peak Modulation expressed in kHz Deviation Peaks-per-Minute Count Loop-thru #1 Modulation Loop-thru #2 Modulation Peak Average Modulation Average/Peak Modulation Ratio Peak Minimum Modulation AM Noise (with Option 02) Synchronous AM Noise (with Option 02) RF Level (with Option 02) Pilot Modulation (requires FMS-2 or other source of filtered pilot) Pilot Injection (requires FMS-2 or other source of filtered pilot) SCA Injection (requires SCM-2 or other source of filtered SCA)   SETTABLE PARAMETERS: Hold Time Peak Modulation Indicator Peaks-per-Minute Indicator Display Hold Display Blanking Peaks-per-Minute Duration Remote Enable Audio Failure Alarm – Time & Modulation Loop-thru #1 Gain (+20% Modulation) Loop-thru #2 Gain (+20% Modulation) Display Resolution (01% or 1%) Time Mode (Real/Past) Peak Weighting (8 time constants) Calibrator (with Option 01)

specification

SPECIFICATIONS: Accuracy: 0.1% Display: Large 4 digit LED for Total Modulation, 16 segment alphanumeric LED display for menus and parameters Input: Composite or 650 Khz IF (with Option 01) for use with Belar RFA-4, RFA-1A, or DC-4, or RF transmitter sample (with Option 01 and Option 02) Option 01: Precision FM Demodulator with Calibrator Input: 650 kHz IF (From RFA-4, RFA-1A, DC-4, or Option 02) Output: Two 75 ohm buffered, composite Signal/Noise: > 95dB Distortion (IM): < 0.003% Distortion (THD): Unmeasureable (< 0.01%) Option 02: Down Converter and Synchronous AM Noise Detector Frequency Range: 88 to 108 MHz Std. (Specify frequency) Input: 1-10 volts rms, 50 ohms, BNC connector Outputs: 650 kHz IF, 9-pin D connector to Wizard Signal/Noise: > 95 dB AM Noise Range: -17 to -80 dB Synchronous AM Noise Range: -17 to -80 dB

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