| TX20KSS/61S412 |
| Parameter | | Value |
| GENERALS |
| RF Output Power | | 21 kW |
| Frequency Range | | 87,5 – 108 MHz |
| Frequency Stability | | ± 1 ppm |
| Driver power for rated output | | 20 - 25 W |
| Nominal Frequency Deviation | | ±75 KHz (peak) |
| Maximum Frequency Deviation | | ±150 KHz (peak) |
| Class of Emission | | 180KF8E Direct to Channel |
| Modulation Mode | | Mono, Stereo, Multiplex |
| Stereo transmissions | | Ace to ITU-R / Ree 450 (Pilot tone) |
| RF Output Impedance | | 50 Ω |
| RF Output Connector | | 3-1/8” EIA Flange |
| VSWR | | 1.4:1 with automatic fold-back at higher VSWR |
| Pre-emphasis Mode | | 0/50 (CCIR) µs,75 (FCC) μs |
| Asynchronous AM S/N Ratio | | Typically >70dB |
| Synchronous AM S/N Ratio | | Typically > 55dB |
| Harmonics suppression and Spurious | | Typically < 85dB |
| Overall efficiency | | Typically > 72-74% |
| RF Harmonics | | Exceeds ETSI/CCIR/FCC requirements |
| RF Spurious | | Exceeds ETSI/CCIR/FCC requirements |
| Analogue Input level {+75 Khz (peak) deviation } | | -12,5 dBu - +12,5 dBu (adjustable) |
| Digital Input level {+75 Khz (peak) deviation } | | -20,0 dBFS – 0 dBFS (adjustable) |
| POWER REQUIREMENTS |
| AC power input | AC supply voltage | 400V ±10% AC Three-Phase 3F-N 230V ±10% AC Three-Phase 3F-N |
| | Active power consumption | From 29,1 kW to 28,3 kW |
| | Overall efficiency | Typically > 72-74% |
| | Power factor | > 0,95 |
| | Connector | Terminal Block Standard |
| MECHANICAL DIMENSIONS |
| Phisical dimensions mm (WxHxD) | W x H x D | 1370 x 1910 x 1150 |
| Cooling | | Forced, with internal fan |
| Acoustic Noise | | < 75 dBA |
| Weight | | About 770 Kg |
| MONO OPERATION |
| S/N ratio | | Typically > 83dB |
| Total Harmonic Distortion + Noise | | Typically < 0,03% |
| Inter Modulation Distortion SMPTE | | Typically < 0,02% |
| Frequency Response | | Typically ±0,2dB |
| Audio Input Impedance | | 600 Ω or 10 kΩ |
| MPX OPERATION |
| Composite S/N ratio | | Typically > 80dB |
| Total Harmonic Distortion + Noise | | Typically < 0,05% |
| Inter Modulation Distortion | | Typically < 0,05% |
| Frequency Response | | Typically ±0,2dB |
| Audio Input Impedance | | 10 kΩ |
| STEREO OPERATION |
| Stereo FM S/N Ratio | | Typically > 83dB |
| Total Harmonic Distortion + Noise (L or R) | | Typically < 0,02% |
| Inter Modulation Distortion SMPTE (L or R) | | Typically < 0,02% |
| Frequency response (L or R) | | Typically ±0,2dB |
| Linear Cross Talk | | Typically > 50dB |
| Non-linear Cross Talk | | Typically > 50dB |
| Stereo Separation (Sine Wave) | | Typically > 70dB |
| Audio Input Impedance | | 600 Ω or 10 kΩ |
| Digital Input Impedance | | 110 Ω |
