Medium Power 500W-SENSOR 500
SENSOR 500W FM Transmitter-Build with  Air Cooled Medium Power High Efficiency Stereo Analog & Digital DDS Frequency Modulation Profesional Radio Station Equipment

Medium Power Broadcast 500W FM Transmitters Radio
SENSOR



Union-Semicompact: composed by SYNAPSE Exciter and CELL Amplifier
Build with Air Cooled High Efficiency Stereo Analog & Digital DDS
Frequency Modulation Profesional Radio Station Equipment



OVERALL AMPLIFIER CHARACTERISTICS



Hardware and Software Protections

  • Over and Under Voltage DC, Over and Under Voltage AC, RF and Power Supply Temperature, RF Coaxial


Output Open or Short Circuit

  • Capability of a long working time on Short/Open loads at all phase angles without any damage.
  • Last generation 1400 W LDMOS, VSWR > 65:1 @ all Phase Angles, designed for enhanced ruggedness ISM applications and plasma generators.
  • Integrated AC Mains filtering.
  • Integrated lightning protection.
  • Delayed energized of the system after Mains Power Blackout prevents against peaks and high variation voltages typical of this events.
  • Soft controlled sequential start-up so to reduce the Inrush current during OFF to ON transition. WEB/SNMP Telemetry and Remote Control
  • Full Local or Remote control by by logon username and password.
  • Remote control with Smartphones or Tablet.
  • Host Logic and tele-measurement (TM, TC & TA).
  • Remote control and monitoring via SNMP and/or WEB interface.
  • With logbook or log file to record error or alarm message.
  • Display of forward/reflection power value and reflection high alarm.
  • TCP/IP, SNMP, GSM and PSTN TELEMETRY



Human Interface

  • Each module is equipped with a logic controller that allows full control by a local operator.
  • All transmitter and amplifier parameters required for diagnostics can be retrieved locally or remotely via standard (IP) protocol and standard software (web browser, SNMP).
  • Multilingual user guidance.
  • High Definition, high contrast Color Oled display.
  • Quick set of thresholds for protections level. This set is based on assignment of three “flavors” or PERSONALITIES: Conservative (primary target = protect itself), Standard (balanced), Aggressive (primary target = transmission without interruptions).



TECHNICHAL CHARACTERISTICS



CELL Tech HIGH Efficiency

  • Output power on/off and adjustable from front panel and remotely.
  • Overall Efficiency up to 80%.
  • RF Input Connector: N Type.
  • RF Output Impedance: 50 ohm.
  • RF Output Connector: 7/16 Type. (other on request).
  • Monitor RF: -57 dBc, BNC connector.
  • VSWR: 1.5:1 Maximum with automatic fold-back at higher VSWR.
  • Very high efficiency (more than 75%.
  • Last LDMOS technology for power modules.
  • Ultra High RF efficiency (>80 % typ.) software optimized for each power level.
  • Lowest weight and dimensions in the industry.
  • Lower device heating.
  • Lower room heating.
  • Lower space occupied.
  • Lower maintenance needed.
  • Small dimensions and low weight, reduce transportation costs and simplifying the logistic.
  • Longer Component Lifespan.
  • Reduced Electricity Costs.
  • Lower Maintenance Costs.
  • Reduced Cooling Costs.
  • Fewer Fans.



Electrical Characteristics

  • Very high harmonics suppression (-90dB).
  • Independent, individual APC (Automatic Power Control) circuit maintain a constant output power set.
  • Frequency-response-compensated directional couplers and precision internal indicators.
  • Distributed less binding Low Pass filter.



AC Input Power: 220/400 VAC ±15%, 50/60 HZ singlephase
Power factor > 0.98.
Cooling: Forced air



ENVIRONMENTAL



Operating temperature: -10°C to +50°C.
Max Operating Altitude: 4000 mt.
Relative Humidity Range: 0 to 95% non condensing.



PHYSICAL DIMENSIONS



Mounting: Standard 19” chassis 2 U rack.
Size: 485 mm. W x 550 mm. D x 88 mm. H.
Weight: ~ 17 Kg.
When developing CELL Series, the main target was: Always on Air, Less than 7 kg (15 lbs) of modules-weight, Easy maintenance, Low consumption and High Efficiency



OVERALL EXCITER

CHARACTERISTICS GENERAL



Power Output: 50 W adjustable from front panel.
RF Output Impedance: 50 ohm.
RF Output Connector: “N” type.
Monitor RF: -46 dBc, BNC connector
VSWR: 1.5:1 Maximum with automatic fold-back at higher VSWR
Frequency Range: 87.5 ÷ 108.00 MHz, on request 66 ÷ 74 MHz ( OIRT), 76 ÷ 90 MHz (JPN) Programmable in 10 KHz steps.
Frequency Stability: ±1 ppm from -5 to 50°C.
Frequency Control: Synthesizer μprocessor control.
Type of Modulation: Direct frequency modulation of carrier frequency, F3E stereo and mono.
Lock in Time: Typ. 4 second.
Off Lock Attenuation: ≥ -60 dBc.
Modulation Capability: ±150 KHz.
Modulation Mode: Mono, Stereo, Multiplex, Aux.
Preemphasis: Flat/50/75μs selectable internal jumper.
Asynchronous AM S/N Ratio: -80 dB below reference carrier with 100% AM modulation @ 400 Hz, without FM modulation.
Synchronous AM S/N Ratio: -65 dB below reference carrier with 100% AM modulation @ 400 Hz with FM modulation ±75 KHz @ 400 Hz.
RF Harmonics: Exceeds EBU/CCIR/FCC requirements.
RF Spurious: Exceeds ETSI/CCIR/FCC requirements.



MONAURAL OPERATION



Audio Input Impedance: 600 ohm balanced, 10 Kohms unbalanced.
Audio Input Level: -3 to +9 dBm.
Input Connector: XLR female.
Audio Frequency Response: ±0.1 dB, 30 Hz to 15 KHz.
Total Harmonic Distortion + Noise: 0.05% @ 400 Hz
Intermodulation Distortion: 0.05%, 1 KHz/1.3 KHz, 1:1 ratio
Transient Interm. Dist.: 0,05%, 2.96 KHz square wave and 14 KHz sine wave.
Distortion: 0.05%, 2.96KHz square wave and 14 KHz sine wave.
FM S/N Ratio: -82 dB RMS, -80 dB at ±75 KHz dev., 50 μs de-emphasis, weighted.



MULTIPLEX OPERATION



Composite Input Impedance: 1.2 Kohm unbalanced.
Composite Input Level: +6 to +12 dBm
Input Connector: BNC female.
Composite Amplitude Response: ±0.2 dB, 30 Hz to 100 KHz.
Total Harmonic Distortion + Noise: 0.05% @ 400 Hz
Intermodulation Distortion: 30 Hz to 15 kHz * 0.05% @ 400 Hz
Transient Interm. Dist.: 0,05%, 2.96 KHz square wave and 14 KHz sine wave.
FM S/N Ratio: -83 dB RMS detector, -80 dB AT ±75 KHz dev., 50 μs de-emphasis, weighted.



STEREO OPERATION



Audio Input Impedance: 600 ohm balanced, 10 Kohm unbalanced.
Audio Input Level: -3 to +9 dBm.
Input Connector: XLR female.Audio Frequency Response: ±0.1 dB, 30 Hz to 15 KHz.
Total Harmonic Distortion + Noise: 0.05% @ 400 Hz
Intermodulation Distortion: 0.05%, 1 KHz/1.3 KHz, 1:1 ratio
Transient Interm. Dist.: 0,05%, 2.96 KHz square wave and 14 KHz sine wave.
FM S/N Ratio: -73 dB RMS, -71 dB at ±75 KHz dev., 50 μs de-emphasis, weighted.
Stereo Separation: 30÷80 Hz ≥ -50 dB, 80Hz÷15 KHz ≥ -60 dB (Typ. 65 dB).
Crosstalk attenuation: Main to Sub -50 dB 30 Hz to 15 KHz (typ. -55 dB 100 Hz to 8 KHz).
38 KHz Suppression: ≥ -65 dB (typ. -80 dB).
Pilot Frequency: 19 KHz ± 1 Hz
Output Pilot: 1 Vpp., BNC female
Audio Filter Attenuation: ≥ -44 dB @ 19 KHz, > -27 dB
20 KHz to 100 KHz.
Modes: Stereo, Mono



AUXILIARY INPUT



Input Impedance: 3 Kohm.
Input Level: -3 to +6 dBm.
Frequency Response: ±0.2 dB, 40 KHz to100 KHz.
Input Connector: BNC female. Most SCA, RDS, AUX, performance parameters are determined primarily by the generator used.



TELEMERTY CONNECTOR



DB9: female connector back panel for remote connections.



OPTIONS



DIGITAL STEREO CODERY
RDS/RBDS CODER PROGRAMMABLE BY PC
OIRT & JPN VERSION
LPFM CODE STATION
ELECTRICAL
AC Input Power: 90÷260 VAC 50/60 HZ single phase.
Cooling: Forced air with internal long life brushless ball bearing fan.
Acoustic noise:< -56 dBa @ 1 m.



ENVIRONMENTAL



Operating temperature: -10°C to +50°C.
Max Operating Altitude: 3000 mt asl.
Relative Humidity Range: 0 to 95% non condensing.



PHYSICAL DIMENSION



Mounting: Standard 19” chassis 1 U rack.
W: 485 mm. x D: 405 mm. x H: 44 mm.
Weight: ~ 4,0 Kg