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Overview of the FM30, FM100, and FM250 transmitter family, highlighting integration, ease-of-use, and reliability.
Discusses various operational modes (stand-alone, backup, booster) and optional configurations of the transmitter.
Detailed technical specifications covering frequency range, power output, impedance, and performance metrics.
Technical specifications for the optional receiver module, including sensitivity and connector type.
Crucial safety information, including Dangers, Warnings, and Cautions for safe operation and handling.
Guidelines for proper placement and ventilation of the transmitter for optimal performance.
Instructions for connecting AC and DC power, setting line voltage, and fuse identification.
Step-by-step procedure for selecting and setting the transmitter's operating frequency.
How to set the receiver module's frequency using SW1 and SW2 switches.
Connecting the RF load, antenna, or external power amplifier to the transmitter.
Connecting audio sources via XLR connectors for left, right, or mono inputs.
Connecting external SCA generators to the BNC input connectors.
Method for feeding composite audio directly to the RF exciter, bypassing internal processing.
Connecting monitors to the rear panel jacks for audio testing and monitoring.
How to select the pre-emphasis curve via jumpers on the audio processor board.
Configuring the automatic carrier turn-off feature for program input failures.
Details of the 15-pin D-sub connector for remote control and metering functions.
A comprehensive guide to powering up the transmitter for the first time and initial parameter checks.
Explanation of the DC breaker, main power switch, and carrier switch functions.
Description of the front panel displays showing audio levels, gain, and modulation status.
How to adjust audio input sensitivity using the designated gain switches.
Guidance on setting the processing control for optimal audio density and dynamic range.
Function of the switch to select between stereo and mono transmission modes.
How to set and control the transmitter's RF output power level.
Understanding the front panel digital multimeter readings for various parameters.
Interpretation of fault indicators and their relation to transmitter status and errors.
Explanation of the component and circuit board part numbering system.
Detailed breakdown of the audio processor board's circuitry and operational principles.
Detailed breakdown of the stereo generator board's circuitry and signal processing.
Detailed breakdown of the RF exciter (frequency synthesizer) board's circuitry.
Detailed breakdown of the metering board's circuitry for RF/DC measurements and ALC.
Description of the motherboard's role in interconnecting boards and supporting options.
Explanation of the display board's circuitry for indicators, meter, and controls.
Details on the voltage regulator board's switching regulators and control circuits.
Explanation of the power regulator board's components and functions.
Description of the RF driver/amplifier assembly for the FM30 model.
Description of the RF driver assembly for the FM100/FM250 models.
Description of the RF amplifier assembly for the FM100/FM250 models.
Overview of chassis components, including power supply and filtering.
Explanation of the RF low-pass filter and reflectometer circuitry for harmonic suppression and impedance matching.
Technical details of the receiver board, enabling translator functionality.
Procedures for selecting and fine-tuning pre-emphasis curves for optimal audio processing.
Steps for adjusting stereo separation and composite output levels for quality stereo signal.
Procedures for setting, measuring, and adjusting the frequency synthesizer's operating frequency.
Calibration adjustments for power, SWR, and PA current limit on the metering board.
Details on motherboard jumper configurations for various optional features.
Calibrating the front panel modulation bar graph display sensitivity.
Setting time delays for the program input fault time-out feature.
Procedure for setting the bias trim pot in the RF power amplifier for optimal performance.
Comprehensive tests to verify transmitter performance and signal quality parameters.
Method for measuring and adjusting the carrier frequency to meet FCC specifications.
Procedures for measuring and setting the transmitter's RF output power level accurately.
Verifying RF bandwidth and spurious emissions using an RF spectrum analyzer.
How to measure and adjust the 19-kHz stereo pilot frequency.
Measuring the audio frequency response across the audible spectrum.
Measuring audio distortion levels at various frequencies for signal integrity.
Confirming modulation percentage and its consistency between stereo and mono modes.
Taking noise readings from the de-emphasized output for signal-to-noise ratio assessment.
Measuring the separation between left and right audio channels.
Measuring crosstalk between main and subcarrier audio signals.
Ensuring the 38-kHz subcarrier is adequately suppressed in stereo transmissions.
Performing final physical inspections and functional checks of the transmitter.
Illustrations showing front and rear views of the transmitter, identifying key controls and connectors.
Detailed component layout diagrams and schematics for internal circuit boards.
Procedures for obtaining warranty service, including returning the unit for repair or replacement.
Information on how to access 24-hour technical assistance for urgent support needs.
Contact details for ordering replacement spare parts for the transmitter.
Overview of the FM30, FM100, and FM250 transmitter family, highlighting integration, ease-of-use, and reliability.
Discusses various operational modes (stand-alone, backup, booster) and optional configurations of the transmitter.
Detailed technical specifications covering frequency range, power output, impedance, and performance metrics.
Technical specifications for the optional receiver module, including sensitivity and connector type.
Crucial safety information, including Dangers, Warnings, and Cautions for safe operation and handling.
Guidelines for proper placement and ventilation of the transmitter for optimal performance.
Instructions for connecting AC and DC power, setting line voltage, and fuse identification.
Step-by-step procedure for selecting and setting the transmitter's operating frequency.
How to set the receiver module's frequency using SW1 and SW2 switches.
Connecting the RF load, antenna, or external power amplifier to the transmitter.
Connecting audio sources via XLR connectors for left, right, or mono inputs.
Connecting external SCA generators to the BNC input connectors.
Method for feeding composite audio directly to the RF exciter, bypassing internal processing.
Connecting monitors to the rear panel jacks for audio testing and monitoring.
How to select the pre-emphasis curve via jumpers on the audio processor board.
Configuring the automatic carrier turn-off feature for program input failures.
Details of the 15-pin D-sub connector for remote control and metering functions.
A comprehensive guide to powering up the transmitter for the first time and initial parameter checks.
Explanation of the DC breaker, main power switch, and carrier switch functions.
Description of the front panel displays showing audio levels, gain, and modulation status.
How to adjust audio input sensitivity using the designated gain switches.
Guidance on setting the processing control for optimal audio density and dynamic range.
Function of the switch to select between stereo and mono transmission modes.
How to set and control the transmitter's RF output power level.
Understanding the front panel digital multimeter readings for various parameters.
Interpretation of fault indicators and their relation to transmitter status and errors.
Explanation of the component and circuit board part numbering system.
Detailed breakdown of the audio processor board's circuitry and operational principles.
Detailed breakdown of the stereo generator board's circuitry and signal processing.
Detailed breakdown of the RF exciter (frequency synthesizer) board's circuitry.
Detailed breakdown of the metering board's circuitry for RF/DC measurements and ALC.
Description of the motherboard's role in interconnecting boards and supporting options.
Explanation of the display board's circuitry for indicators, meter, and controls.
Details on the voltage regulator board's switching regulators and control circuits.
Explanation of the power regulator board's components and functions.
Description of the RF driver/amplifier assembly for the FM30 model.
Description of the RF driver assembly for the FM100/FM250 models.
Description of the RF amplifier assembly for the FM100/FM250 models.
Overview of chassis components, including power supply and filtering.
Explanation of the RF low-pass filter and reflectometer circuitry for harmonic suppression and impedance matching.
Technical details of the receiver board, enabling translator functionality.
Procedures for selecting and fine-tuning pre-emphasis curves for optimal audio processing.
Steps for adjusting stereo separation and composite output levels for quality stereo signal.
Procedures for setting, measuring, and adjusting the frequency synthesizer's operating frequency.
Calibration adjustments for power, SWR, and PA current limit on the metering board.
Details on motherboard jumper configurations for various optional features.
Calibrating the front panel modulation bar graph display sensitivity.
Setting time delays for the program input fault time-out feature.
Procedure for setting the bias trim pot in the RF power amplifier for optimal performance.
Comprehensive tests to verify transmitter performance and signal quality parameters.
Method for measuring and adjusting the carrier frequency to meet FCC specifications.
Procedures for measuring and setting the transmitter's RF output power level accurately.
Verifying RF bandwidth and spurious emissions using an RF spectrum analyzer.
How to measure and adjust the 19-kHz stereo pilot frequency.
Measuring the audio frequency response across the audible spectrum.
Measuring audio distortion levels at various frequencies for signal integrity.
Confirming modulation percentage and its consistency between stereo and mono modes.
Taking noise readings from the de-emphasized output for signal-to-noise ratio assessment.
Measuring the separation between left and right audio channels.
Measuring crosstalk between main and subcarrier audio signals.
Ensuring the 38-kHz subcarrier is adequately suppressed in stereo transmissions.
Performing final physical inspections and functional checks of the transmitter.
Illustrations showing front and rear views of the transmitter, identifying key controls and connectors.
Detailed component layout diagrams and schematics for internal circuit boards.
Procedures for obtaining warranty service, including returning the unit for repair or replacement.
Information on how to access 24-hour technical assistance for urgent support needs.
Contact details for ordering replacement spare parts for the transmitter.
General| Output Power | 100 W |
|---|---|
| Modulation Type | FM |
| RF Output Impedance | 50 Ohms |
| Power Requirements | 100-240 VAC, 50/60 Hz |
| Input Voltage | 100-240 VAC |
| Cooling | Forced air |
| Frequency Range | 88-108 MHz |
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