Low Power 50W-SYNAPSE 50

Low Power Broadcast
50W FM Transmitters - Exciter Radio Station
SYNAPSE

Compact Architecture - Stereo Analogue Frequency Modulation Radio Station Equipment
OIRT & JAPAN Bands, WEB TCP/IP Telemetry Options

 

 

SYNAPSE Exciter Family is a compact FM Exciter with very good performance at low-cost designed for cost-effective applications as low power station as well as driver for low and medium power Trasnmitters. It is realized in the output power sizes from 30 W and 50W and it is housed into an ultra-compact cabinet of only  one unit height.  SYNAPSE is available also in JPN and OIRT frequencies. Its output power can be easily set from 0 to the nominal power.

Main Features

  • NOMINAL RF OUTPUT  POWER:  50 W
  • COMPACT  SIZE: ONLY ONE 19” RACK UNIT CABINET
  • VERY LOW SIGNAL TO NOISE:  TYP. 80 dB
  • HIGH STEREO SEPARATION:  TYP. 65 dB
  • LOW DISTORTION: THD, IMD & TIM TYP. 0,05%.
  • TOTAL  SPECTRAL PURITY: > -100 dBc SPURIOUS, > - 75 dBc HARMONICS
  • REMOTE  CONTROL:  DB9 TELEMETRY PORT
  • FULL – RANGE POWER SUPPLY: 90-260 VAC MAINS VOLTAGE
  • COMPLIANT WITH ALL THE STANDARD: ETSI – CCIR - FCC.

Options

  • DIGITAL   STEREO CODER:  SUPERIOR STEREO QUALITY
  • FULL FEATURES RDS/RBDS CODER: EASY PROGRAMMABLE BY PC 
  • OIRT & JPN:  FREQUENCY BAND VERSION
  • LPFM CODE STATION: FCC IDENTIFICATIONS CODE

 

 

To optimize to the maximum the price the SYNAPSE is available in two version: MONO/MPX and STEREO. The Stereo Coder can be easy upgraded on site also after the first installation. 

SYNAPSE allows the possibility to be easily upgraded with  useful options, in order to meet all the customer needs, like on- site integrated RDS Encoder and FCC station coding. 

The SYNAPSE’s integrated CPU card allows a large number of monitoring parameter. An user-friendly menu visualized in a clear LCD display allows the  configuration and setting of all the working parameters and the monitoring of the operating values. 

FRONT PANEL 
  1. USB Port USB Connector for upgrade function.  
  2. LCD Displa y Two- row, sixteen-characters LCD Display 
  3. Encoder Rotary encoder
  4. RF Monitor RF Output Monitor.BNC female (50 Ohm)

 REAR PANEL CONNECTORS

 
  1. RF OUT RF Output. N (50 Ohm) type connector, female. 
  2. AES/EBU Input (Optional) Digital\Input Balaced BNC Plug/(TOS optical Input) 
  3. Right/Left - Mono Input Analog Audio Input XLR (3 pins male connector)
  4. MPX Input MPX Unbalanced Input. BNC female connector5. AUX Input BNC female connector.
  5. 19 kHz Pilot Output BNC female connector.
  6. RDS/external Input RDS Input. BNC female type connector.
  7. AF Monitor BNC female Type connector
  8. WEB Telemetry (OPTIONAL) RJ45 for Lan connection
  9. RS485 RJ45 for RS485 connection.
  10. Reading DB9 Female Connector
  11. RDS Programming (OPTIONAL) Jack/ST/Female 6,3mm
  12. Telemetry DB25 Female Connector
  13. DC Input (OPTIONAL) Amphenol conector eco-mate serie C16-1
  14. AC Mains AC Main Source. VDE Mains socket.

 

  TECHNICAL SPECIFICATIONS

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. 

AC Apparent Power Consumption: 70 VA @ 30W.

Active power Consumption: 60W @ 30W.

Cooling: Forced air with internal long life brushless ball bearing fan.

Acoustic noise:< -56 dBa @ 1 meter.

 

ENVIRONMENTAL

Operating temperature: -10°C to +50°C.

Max Operating Altitude: 3000 mt.

Relative Humidity Range: 0 to 95% non condensing.

 

PHYSICAL DIMENSION

Mounting: Standard 19” chassis 1 U rack.

Size: 485 mm. W x 405 mm. D x 44 mm. H.

Weight: ~ 4,0 Kg.