Enhance Your Broadcast with the SENSOR Modular High-Power FM Transmitter
Experience unmatched reliability, efficiency, and easy maintenance. DRM and IBOC ready.

For those who demand uncompromising sound quality and long-term reliability, SENSOR is the definitive solution. It combines exceptional durability, energy efficiency, and advanced connectivity, ensuring peak performance even in the harshest environmental conditions.

Its modular design simplifies maintenance by housing each component: Exciter and RF Amplifier in separate cabinets.
Sensor is composed by:

• SYNAPSE Exciter
• CELL FM Amplifier

With SENSOR, you’ll experience warm, clear, and smooth audio with low distortion, high signal-to-noise ratios, and excellent stereo separation giving your station a unique sound.
SENSOR takes care of FM modulation directly from your audio source, delivering up to 5000W of power with unmatched reliability.
Perfect for a wide range of FM applications, including community, commercial, religious, educational, large national networks, public, and political FM radio transmitters.

Main Features

• Output Power from 1000W to 5000W
• Modular Architecture
• Double Drive option
• HD Radio and DRM ready
• Extreme Robustness and Reliability
• Remote Access via HTML5 Web, TCP/IP, SNMP, Email, and Telegram
• Unmatched Audio Fidelity and Versatile Audio Inputs
• Exceptional efficiency and low power consumption
• Unified Spare Parts Across SENSOR Series
• Easy maintenance and low-cost ownership

Highlights

• High Signal-to-Noise Ratio Typically 85 dB, 65 dB stereo separation, ultra-low distortion of 0.01%.
• Versatile Audio Inputs: Supports MPX (Composite), Stereo, AES/EBU, Mono, and remotely programmable Dynamic RDS (remotely programmable). Includes optional automatic audio input backup and supports IP Streaming, Pen Drive, or Hard Disk for MP3 playback.
• Intelligent Soft Limiter: Maintains a maximum deviation of 75 kHz, ensuring high volume output without introducing distortion.
• Frequency Modulation Range: 87.5–108.0 MHz, options for Japan (JPN), Russia (OIRT 66–74 MHz), and other bands available.
• Efficiency: Achieves up to 88% RF and 79% overall efficiency, consistently maintained across all frequencies and power levels through intelligent control. Power consumption is further reduced thanks to the Energy-Saving Weekly Scheduler feature.
• Robust LDMOS 50 V with 6th Generation Planar Technology, offering VSWR tolerance greater than 65:1 at all phase angles, specifically designed for enhanced durability and ruggedness in FM and ISM applications.
• Spectral Purity: > –100 dBc spurious, > –84 dBc harmonics.
• Separate Components: Splitter, Combiner, Unbalanced Dummy Loads, Control Logic for easier maintenance.
• Passive Reserve Capability: A single CELL amplifier can serve as a backup.
• Double Exciter with Automatic Changeover Option
• Self-Protected Plug-In Power Supply: Wide voltage range (90–250 V) for enhanced reliability, includes AC mains filtering. Lightning and Overvoltage Protection, as well as Delayed Energization option.
• Optional Touch Screen BRAIN WEB Control Unit on the transmitter, along with an LCD and keyboard on the front panel of the RF amplifiers, providing user-friendly and fast control.
• Durable Construction: Features an aluminium body, tropicalized PCBs, and an air filter for dust protection. The air-ducted architecture protects internal electronic components from direct airflow, preventing failures due to air corrosion.
• RF Planar Architecture ensures maximum reproducibility and consistency in RF amplifier quality. The Copper Carrier enhances heat dissipation and simplifies maintenance.
• Broadband Output Filter: Optimal spectral purity without tuning.
• Standards Compliance: Meets ETSI, CCIR, FCC requirements.

SENSOR: Where Sound and Reliability Beat with the Same Heart

Modular Architecture

Advantages of Modular Architecture

Sometimes, the RF amplifier and exciter are integrated into a single enclosure, which complicates maintenance.
The SENSOR modular system overcomes these challenges by making each component independent and self-sufficient, greatly simplifying troubleshooting and fault resolution.
Another key advantage is that both, the FM Exciter and the RF Amplifier, are designed to operate independently and, each of them, includes all necessary components such as power supply, fans, control logic, output filter, and protections. Testing or repairing it, whether on-site or in the lab, requires only a dummy load and an standard power cord, without the need for special tools.

BROADCAST & SCIENCE EQUIPMENT

SENSOR 2000

2000W High Efficiency and Reliability FM Transmitter

DRM and IBOC Ready

SENSOR Modular FM Transmitter
DRM and IBOC Ready
Output Power from 1000W to 5000W
SENSOR guarantees low energy consumption, reduced ownership costs, and easy maintenance.

HIGHLIGHTS

Enhance your broadcast with the SENSOR Modular High-Power FM Transmitter. Experience unmatched reliability, efficiency, and easy maintenance. DRM and IBOC ready.

For those who demand uncompromising sound quality and long-term reliability, SENSOR is the definitive solution. It combines exceptional durability, energy efficiency, and advanced connectivity, ensuring peak performance even in the harshest environmental conditions.

Its modular design simplifies maintenance by housing each component: Exciter and RF Amplifier in separate cabinets.

Sensor is composed by:

• Exciter SYNAPSE
• FM Amplifiers CELL

With SENSOR, you’ll experience warm, clear, and smooth audio with low distortion, high signal-to-noise ratios, and excellent stereo separation giving your station a unique sound.

SENSOR takes care of FM modulation directly from your audio source, delivering up to 5000W of power with unmatched reliability.

Perfect for a wide range of FM applications, including community, commercial, religious, educational, large national networks, public, and political FM radio transmitters.

Main Key

• Output Power from 1000W to 5000W
• Modular Architecture
• Double Drive option
• HD Radio and DRM ready
• Extreme Robustness and Reliability
• Remote Access via HTML5 Web, TCP/IP, SNMP, Email, and Telegram
• Unmatched Audio Fidelity and Versatile Audio Inputs
• Exceptional efficiency and low power consumption
• Unified Spare Parts Across SENSOR Series
• Easy maintenance and low-cost ownership

Highlights

• High Signal-to-Noise Ratio – Typically 85 dB, 65 dB stereo separation, ultra-low distortion of 0.01%.
• Versatile Audio Inputs – Supports MPX (Composite), Stereo, AES/EBU, Mono, and remotely programmable Dynamic RDS. Includes optional automatic audio input backup and supports IP streaming, pen drive, or hard disk for MP3 playback.
• Intelligent Soft Limiter – Maintains a maximum deviation of 75 kHz, ensuring high volume output without introducing distortion.
• Frequency Modulation Range – 87.5–108.0 MHz, options for Japan (JPN), Russia (OIRT 66–74 MHz), and other bands available.
• Efficiency – Achieves up to 88% RF and 79% overall efficiency, consistently maintained across all frequencies and power levels through intelligent control. Power consumption is further reduced thanks to the Energy-Saving Weekly Scheduler feature.
• Robust LDMOS 50 V with 6th Generation Planar Technology – Offers VSWR tolerance greater than 65:1 at all phase angles, specifically designed for enhanced durability and ruggedness in FM and ISM applications.
• Spectral Purity – > –100 dBc spurious, > –84 dBc harmonics.
• Separate Components – Splitter, Combiner, Unbalanced Dummy Loads, and Control Logic for easier maintenance.
• Passive Reserve Capability – A single CELL amplifier can serve as a backup.
• Double Exciter with Automatic Changeover Option
• Self-Protected Plug-In Power Supply – Wide voltage range (90–250 V) for enhanced reliability, includes AC mains filtering, lightning and overvoltage protection, as well as a delayed energization option.
• Optional Touch Screen BRAIN WEB Control Unit – Integrates on the transmitter, along with an LCD and keyboard on the front panel of the RF amplifiers, providing user-friendly and fast control.
• Durable Construction – Features an aluminium body, tropicalized PCBs, and an air filter for dust protection. The air-ducted architecture protects internal components from direct airflow, preventing failures due to air corrosion.
• RF Planar Architecture – Ensures maximum reproducibility and consistency in RF amplifier quality. The copper carrier enhances heat dissipation and simplifies maintenance.
• Broadband Output Filter – Provides optimal spectral purity without tuning.
• Standards Compliance – Meets ETSI, CCIR, and FCC requirements.

SENSOR: Where Sound and Reliability Beat with the Same Heart

Technical Characteristics

Composed By

• Exciter type: Synapse
• RF Amplifier: CELL 2000

Output Power Watts

• Output Power: 2000 W
• Max Output Power: 2,200 W
• FM+HD 20dBc Max: 1,900 W
• FM HD 14dBc Max: 1,380 W
• FM HD 10dBc Max: 1,200 W
• HD Only 20dBc Max: 780 W
• HD Only 14dBc Max: 660 W
• HD Only 10dBc Max: 580 W
• Output Connector: 7/8"

Electrical

• Overall Efficiency: 75%
• RF Efficiency: 88%
• Power Consumption: 2,667 W
• AC Power Factor: 0.98
• AC Mains Configuration – 3-phase 380 V: 4-wire WYE
  • AC Input Voltage: 380 V
  • Total Line Amps: 4 A
  • AC Fuse Size: 6 A
  • Possible AC Conductor Size: AWG
  • Possible AC Conductor Size: mm²
• AC Mains Configuration – 3-phase 220 V: 3-wire closed delta or WYE plus safety ground
  • AC Input Voltage: 220 V
  • Total Amps: 7 A
  • AC Fuse Size: 10 A
  • Possible AC Conductor Size: AWG
  • Possible AC Conductor Size: mm²
• AC Mains Configuration – 1-phase: 2-wire plus safety ground
  • AC Input Voltage: 220 V
  • Total Amps: 13 A
  • AC Fuse Size: 18 A
  • Possible AC Conductor Size: AWG
  • Possible AC Conductor Size: mm²

Cooling

• Cooling Type: Forced Air
• Cooling Air Volume: 283 m³/h
• Heat Dissipation: 2,222 BTU
• Heat Dissipation: 667 W
• Air Conditioning Load: 190 W

Mechanical

• Number of Cabinets: 1
• Cabinet type: 19″ rack
• Rack Units Height: 18 U
• Width: 484 mm
• Depth: 624 mm
• Height: 89 mm
• Weight: 22 kg

Packaging

• Package Width: 780 mm
• Package Depth: 610 mm
• Package Height: 330 mm
• Package Weight: 25 kg

Environmental

• Altitude: 4,000 m
• Ambient Temp Range: 0 to 45°C (de-rated 2° per each 300 m asl)
• Humidity: 95% non-condensing

Radioelectrics Characteristics

• Frequency Range: 87.5 – 108.0 MHz, programmable in 10 kHz steps
• Range of adjustment: from 100% to maximum power
• On request: 66 – 74 MHz (OIRT), 76 – 90 MHz (JPN) bands
• Frequency Stability: better than ±150 Hz (from -10 to +50°C)
• Modulation capability (max deviation): ±150 kHz
• Frequency Control: Synthesizer (microprocessor control)
• Output Impedance: 50 Ω
• Display: Forward/Reflected power and modulation indicator
• Type of Modulation: Direct carrier frequency modulation (F3E Stereo with subcarrier and mono)
• Lock-in Time: Typ. 4 s
• Off-Lock Attenuation: ≥ -80 dBc
• Modulation Mode: Mono, Stereo, Multiplex, SCA, RDS, Aux
• Pre-emphasis: Flat (0)/50/75 μs selectable from front panel
• Asynchronous AM S/N Ratio: -60 dB (100% AM modulation @ 400 Hz, without FM modulation)
• Synchronous AM S/N Ratio: -60 dB (100% AM modulation @ 400 Hz with FM modulation ±75 kHz @ 400 Hz)
• RF Harmonics: Exceeds ETSI/EBU/CCIR/FCC requirements (better than -84 dBc)
• RF Spurious: Exceeds ETSI/EBU/CCIR/FCC requirements (better than -84 dBc)
• Output Power: On/off and adjustable from front panel and remotely
• Overall Efficiency: up to 80%
• Monitor RF: -60 dBc (BNC connector)
• VSWR: 1.5:1 max (automatic fold-back at higher VSWR)

Audio Characteristics

Monaural Operation

• Audio Input Impedance: 600 Ω balanced; 15 kΩ unbalanced
• Audio Input Level: -6 to +12 dBm (other range on request)
• Input Connector: XLR (female)
• Audio Frequency Response: ±0.15 dB, 30 Hz to 15 kHz
• Total Harmonic Distortion + Noise: 0.03% @ 400 Hz
• Intermodulation Distortion: 0.03%, 1 kHz/1.3 kHz, 1:1 ratio
• Transient Intermodulation Distortion: 0.03%, 2.96 kHz square wave and 14 kHz sine wave
• FM S/N Ratio: -89 dB (RMS detector; -85 dB below ±75 kHz deviation, 50 μs de-emphasis, weighted)

Multiplex Operation

• Composite Input Impedance: 5 kΩ unbalanced
• Composite Input Level: 3.5 V_p-p for ±75 kHz deviation
• Input Connector: BNC (female)
• Composite Amplitude Response: ≤ ±0.1 dB, 30 Hz to 53 kHz
• Total Harmonic Distortion + Noise: 0.03% @ 400 Hz
• Intermodulation Distortion: 0.03%, 1 kHz/1.3 kHz, 1:1 ratio
• Transient Intermodulation Distortion: 0.03%, 2.96 kHz square wave and 14 kHz sine wave
• FM S/N Ratio: -89 dB (RMS detector; -85 dB below ±75 kHz deviation, 50 μs de-emphasis, weighted)

Stereo Operation

• Audio Input Impedance: 600 Ω balanced; 15 kΩ unbalanced
• Audio Input Level: -12 to +12 dBm
• Input Connector: XLR (female)
• Audio Frequency Response: ±0.15 dB, 30 Hz to 15 kHz
• Total Harmonic Distortion + Noise: 0.03% @ 400 Hz
• Intermodulation Distortion: 0.02%, 60 Hz/7 kHz 4:1 ratio @ +4 dBu
• Transient Intermodulation Distortion: 0.03%, 2.96 kHz square wave and 14 kHz sine wave
• FM S/N Ratio: -85 dB (RMS detector; -82 dB below ±75 kHz deviation, 50 μs de-emphasis, weighted)
• Stereo Separation: 30–80 Hz ≥ -53 dB; 80 Hz–15 kHz ≥ -65 dB (Typ. 70 dB)
• Crosstalk Attenuation: Main to Sub ≥ -55 dB (30 Hz to 15 kHz)
• 38 kHz Suppression: ≥ -70 dB (Typ. -85 dB)
• Pilot Frequency: 19 kHz ± 1 Hz
• Pilot Phase: ± 2° adjustable
• Pilot Output: 1 V_p-p (BNC female)
• Audio Filter Attenuation: ≥ -55 dB @ 19 kHz; > -45 dB from 20 kHz to 100 kHz
• Modes: Stereo, Mono L+R, Mono L, Mono R

AES/EBU Operation

• Input Level: -10 dBFS to 0 dBFS
• Input Connector: XLR (female) / Optical TOSLINK
• Input Impedance: 110 Ω
• Data Format: S/PDIF, AES/EBU, IEC958, EIAJ CP-340/1201
• D/A Converter: 24-bit
• Sampling Frequency: 32 to 96 kHz (automatic selection)
• Stereo Separation (Crosstalk): ≥ 50 dB (100 Hz to 5 kHz)
• Amplitude Response: ≤ ±0.1 dB, 30 Hz to 15 kHz
• FM S/N Ratio: -85 dB (below ±75 kHz deviation, 50 μs de-emphasis, weighted)

SCA, RDS, AUX Operation

• Input Connector: BNC (female)
• Input Impedance: 3 kΩ
• Input Level: -3 to +6 dBm
• Frequency Response: ±0.2 dB, 40 kHz to 100 kHz

Note: Most SCA/RDS/AUX performance parameters are determined by the generator used.

Options Available

Wide range of options available reduces the need for any additional equipment:

• High performance Stereo Encoder
• Digital AES/EBU
• Dynamic RDS Encoder with TMC function
• AOIP (Audio over IP)
• WEB TCP/IP and SNMP connectivity for remote access
• Japanese (JPN), Russian (OIRT) and other frequency bands available
• Parallel Remote Control Connector Interface

Modular Architecture

Advantages of Modular Architecture

Sometimes, the RF amplifier and exciter are integrated into a single enclosure, which complicates maintenance.

The SENSOR modular system overcomes these challenges by making each component independent and self-sufficient, greatly simplifying troubleshooting and fault resolution.

Another key advantage is that both the FM exciter and the RF amplifier are designed to operate independently, and each of them includes all necessary components such as power supply, fans, control logic, output filter, and protections. Testing or repairing it, whether on-site or in the lab, requires only a dummy load and a standard power cord, without the need for special tools.

SYNAPSE Compact Low Power FM Transmitter

SYNAPSE embodies:

• Extreme robustness and reliability
• Exceptional energy efficiency for lower consumption
• Remote access via HTML5 Web, TCP/IP, SNMP, Mail, and Telegram
• Easy maintenance with minimal costs
• Versatile audio inputs, including STEREO, MPX composite, AES/EBU digital, or MONO
• Unmatched audio fidelity

SYNAPSE Front View

SYNAPSE Back View

SYNAPSE 30 Block Diagram

• RF OUTPUT
• RF Amplifier
• Main Power Supply
• AUX & FAN Power Supply
• Display & Keyboard
• Left & Right Audio Trimmer Attenuators
• Digital Stereo Coder
• VCO (Voltage Controlled Oscillator)
• Audio Stereo Input Selector
• Audio MPX Input Selector
• MPX, External RDS and SCA Inputs
• Internal RDS Coder
• Digital Input AES/EBU
• CPU & Control Board
• Fan
• Output Directional Coupler
• Output Harmonic Filter
• Control & Ethernet Connector
• RF Driver

CELL RF Amplifier

The Core of SENSOR

The FM amplifier is the foundation of all SENSOR configurations. It has been optimized to enhance the performance of large broadcast systems, allowing them to benefit from shared optimizations.

Features: Low-level RF power input thanks to a pre-driver requiring less than 1 W of power, allowing it to drive high-power transmitters using a small 30 W exciter. It also supports the installation of an attenuator/isolator on the splitter’s input, providing added flexibility and protection.

Benefits

• Optimal Load to the Exciter: The input attenuator and pre-amplifier provide an optimum load to the exciter.
• Prevents Exciter Shutdown: Avoids VSWR feedback from the amplifiers.
• Isolated Exciter Input: The exciter drives a resistive load rather than directly driving the LDMOS input.

Note: In configurations with only one RF amplifier, a 10 dB input attenuator is installed.

CELL Front View

CELL Back View

CELL 2000 Block Diagram

Key Features of the RF Amplifier include:

• Compact Dimensions
• Stand-Alone Operation
• Low Input Power Requirement
• Hot Plug-In Power Supply: Available on the online market.
• Safe Removal: Can be safely removed without interrupting the transmission.

Features

User Interface

Provides immediate control and visualization of the transmitter’s status.

Features:

• Direct Access to Main Commands: Smart navigation keys with ESC function.
• Status Indicators: LEDs provide immediate recognition of operational conditions.
• Intuitive Navigation: Easily browse all parameters.

Reliability and Robustness: Engineered for Durability

To ensure exceptional reliability and performance, all components of SENSOR are over-dimensioned to handle rigorous conditions.

Design and Construction

• Air Filter: Provides high protection, easily cleanable or replaceable.
• Aluminium Construction: Balances minimal weight with maximum durability.
• Tropicalized PCB Boards and Wiring: Specialized coating safeguards against extreme conditions.

Component Over-Dimensioning

• Heatsinks and Fans: Handle excessive heat and ensure adequate cooling.
• Dummy Loads and LDMOS RF Amplifiers: Exceed operational requirements and tolerate high VSWR.
• Power Supply: Provides 30% more power than required.

Integrated Protections

• AC Mains Filtering
• Lightning Protection
• Overvoltage Spike Protection

Mechanical Construction

• Compact Design: Robust 2U aluminium rack mount.
• Optimized Airflow: Channels air through aluminium ducts, enhancing cooling efficiency.
• Efficient Heat Management: Dedicated heatsinks for all heat-producing components.
• Enhanced Durability: Protects electronic components from thermal stress.
• Heavy-Duty Fasteners: Simplifies maintenance with durable 5 mm screws.
• Aluminium Construction: Combines low weight with exceptional strength.

High Efficiency for Low Power Consumption

• Advanced 6th-Generation LDMOS Technology: High efficiency and tolerance to VSWR up to 65:1, ensuring superior reliability and reduced energy consumption.
• Intelligent Efficiency Algorithm: Controls power supply voltage and bias, maintaining optimal efficiency at any frequency and power level.

Plug-In Power Supply

Self-Protected Plug-In Power Supply: Wide voltage range (90–250 V) for enhanced reliability, includes AC mains filtering. Lightning and overvoltage protection, as well as delayed energization option.

RF Planar Architecture

Ensures maximum reproducibility and consistency in RF amplifier quality. The copper carrier enhances heat dissipation and simplifies maintenance.

Protections

Transmitter Integrated Protection

Safeguards against internal anomalies like VSWR issues, excessive temperature, or component malfunctions.

Site Protection Against Environmental Factors

Shields against external factors like lightning or power supply fluctuations.

Transmitter Integrated Protections

SENSOR incorporates:

• Fast Hardware Protection: Immediate response within nanoseconds for critical scenarios.
• Soft Software Protection: Reduces output power without interrupting the broadcast under less severe conditions.

Protection Features:

• Environmental Over-Temperature Protection
• Cooling System Failure Detection
• Amplifier Breakdown Monitoring
• Over and Under AC Voltage Protection
• RF Coaxial Output Open or Short-Circuit Protection

Site Protections: Overvoltage Protection and Delayed Energization (Optional)

Offers optional protection systems, including delayed energization and surge protectors, to guard against power interruptions and overvoltage.

N+1 and Backup Systems

• Versatile Standby Options: Supports various configurations.
• Streamlined Control: No additional control units required.
• N+1 Profiles Connector: Provides seven memory settings.
• Comprehensive Remote-Control Interface: Includes dry contact relay outputs and opto-isolated inputs.

Standards Compliance

• Rigorous Standards Adherence: Fully compliant with ETSI, CCIR, and FCC regulations.

Final Testing and Burn-In

• Final Test and Burn-In: Ensures maximum reliability through meticulous design and extensive testing.
• Rigorous Quality Assurance: Guarantees flawless operation by scrutinizing every detail.

Packaging

Designed with optimized size and weight for secure packaging, ensuring protection against shock and vibration during transport.

Shock and vibration during transport can compromise the result of an installation.

Optimizing the CELL amplifier’s dimensions and weight allows a small and smart package. Small weight and dimensions help to meet the most demanding transport conditions for:

• Hermetic temperature control
• Vibration and shock isolation
• Handling of light packages (aids operator health)

Remote Control

TCP/IP: Web and SNMP Access

Combining intuitive local control with advanced remote capabilities, this system ensures comprehensive supervision of all transmitter operations. It provides operators with unmatched control and diagnostic precision, guaranteeing optimal performance and swift fault resolution.

SENSOR features the most advanced web remote control on the market.

User Interface:

• Direct Internet Connection: No external boxes needed.
• Comprehensive Web Control: Adjust all main parameters remotely.
• Universal Graphics Interface: Compatible with PCs, smartphones, and tablets.
• Email Alerts and Reports: Programmable notifications for alarms or status reports.
• Web Log File: Stores up to 64,000 events, exportable in .txt format.
• Remote Upgradability and Secure Access
• SNMP v2c Support
• Telegram Remote Control
• Advanced Diagnostics: Over 100 parameters monitored, including current, voltage, and temperatures.