ESVA 20-100W
Broadcast FM 20-100W Transmitters
Technical Features
| GENERAL | |
|---|---|
| Frequency Range: | 87.5÷108.00 MHz (other upon request) |
| Modulation: | FM |
| Emission Class: | F3E |
| VCO Tuning: | 25 MHz |
| Frequency stability: | ± 2.5 ppm |
| Synthesizer Step: | 10KHz |
| Power Output: | 30W, 50W or 100W |
| Spurious Emission: | <-80dBorbetter |
| Harmonic Emission: | <-65dB |
| Stereo Separation: | > 55 dB @ 1KHz |
| Distorsion: | < 0.1 % (TYP. 0.06%) @ 1KHz |
| Base Band: | 30 Hz ÷ 60 KHz within 0.15 dB |
| Unweighted S/N Ratio: | > 80 dB (30Hz ÷ 15KHz 50 S RMS) |
| Syncronous AM S/N Ratio: | > 65 dB with FM @ 75KHz @400Hz |
| Asyncronous AM S/N Ratio: | > 70 dB Ref. 100% AM 400Hz |
| Pre-Enphasis: | 50 OR 75 μS int. selectable |
| RF Out Connector: | N-F 50 Ohm |
| MPX Input Connector: | BNC-F |
| MPX Input Impedance | 2 KOhm |
| SCA Input Connector: | 3 BNC- |
| Cooling: | Forced air by brushless fan |
| OP.Temperature Range: | – 10 ÷ +45 °C |
| Maximum Umidity: | 90% |
| AC Supply: | 100÷240VAC- 47÷63Hz |
| Dimension: | 1 unit rack 19″, 405mm depth |
| Wheight: | 6Kg |
| STEREOCODER FEATURES | |
|---|---|
| L & R Input connectors: | Mini XLR female balanced |
| L & R Input impedance: | 10KΩ |
| L & R Input level: | -8dBm to + 12dBm |
| Audio filter response: | ± 0.25dB 20Hz to 15KHz |
| Audio filter attenuation: | > 45dB @ 19KHz, > 35dB to 60KHz |
| Pre-emphasis: | Flat , 50 or 75 microS |
| Harmonic distortion on encoded channels: | < 0.1% ( 0.05% typ) 20Hz to 15KHz |
| S/N: | > 85dB rms |
| Stereo separation: | > 60 dB ( 65dB typ 100Hz÷10KHz) |
| Pilot frequency: | 19KHz ±1Hz |
| Subcarrier frequency: | 38KHz ±2Hz |
| Subcarrier generation: | 4.864KHz Crystal oscillator |
| Pilot level: | 8 to 12% internal adjustable |
| Phase difference 19/38KHz: | 0° ± 2° internal adjustable |
| 38KHz suppression: | > 60dB |
| GENERAL | |
|---|---|
| Frequency Range: | 87.5÷108.00 MHz (other upon request) |
| Modulation: | FM |
| Emission Class: | F3E |
| VCO Tuning: | 25 MHz |
| Frequency stability: | ± 2.5 ppm |
| Synthesizer Step: | 10KHz |
| Power Output: | 30W, 50W or 100W |
| Spurious Emission: | <-80dBorbetter |
| Harmonic Emission: | <-65dB |
| Stereo Separation: | > 55 dB @ 1KHz |
| Distorsion: | < 0.1 % (TYP. 0.06%) @ 1KHz |
| Base Band: | 30 Hz ÷ 60 KHz within 0.15 dB |
| Unweighted S/N Ratio: | > 80 dB (30Hz ÷ 15KHz 50 S RMS) |
| Syncronous AM S/N Ratio: | > 65 dB with FM @ 75KHz @400Hz |
| Asyncronous AM S/N Ratio: | > 70 dB Ref. 100% AM 400Hz |
| Pre-Enphasis: | 50 OR 75 μS int. selectable |
| RF Out Connector: | N-F 50 Ohm |
| MPX Input Connector: | BNC-F |
| MPX Input Impedance | 2 KOhm |
| SCA Input Connector: | 3 BNC- |
| Cooling: | Forced air by brushless fan |
| OP.Temperature Range: | – 10 ÷ +45 °C |
| Maximum Umidity: | 90% |
| AC Supply: | 100÷240VAC- 47÷63Hz |
| Dimension: | 1 unit rack 19″, 405mm depth |
| Wheight: | 6Kg |
| STEREOCODER FEATURES | |
|---|---|
| L & R Input connectors: | Mini XLR female balanced |
| L & R Input impedance: | 10KΩ |
| L & R Input level: | -8dBm to + 12dBm |
| Audio filter response: | ± 0.25dB 20Hz to 15KHz |
| Audio filter attenuation: | > 45dB @ 19KHz, > 35dB to 60KHz |
| Pre-emphasis: | Flat , 50 or 75 microS |
| Harmonic distortion on encoded channels: | < 0.1% ( 0.05% typ) 20Hz to 15KHz |
| S/N: | > 85dB rms |
| Stereo separation: | > 60 dB ( 65dB typ 100Hz÷10KHz) |
| Pilot frequency: | 19KHz ±1Hz |
| Subcarrier frequency: | 38KHz ±2Hz |
| Subcarrier generation: | 4.864KHz Crystal oscillator |
| Pilot level: | 8 to 12% internal adjustable |
| Phase difference 19/38KHz: | 0° ± 2° internal adjustable |
| 38KHz suppression: | > 60dB |