TX25K PLUG-IN CA
PLUG-IN system 25.000W.
COD.: TX25KSS/60D451
Potencia: 25.000W
The image of this layout is purely demonstrative and may change without notice. The configuration is only referred to installed equipment; rack, cover panels and all others accessories are to be defined at order.
Features
Tunable over entire FM band (87.5 – 108 MHZ), without tuning.
Overall efficiency better than 70%.
Hot-pluggable and broadband power amplifier modules.
Each module features switching mode power supply to control and stabilize power supply voltage.
Each amplifier module provides Automatic Power Control.
Suitable for mono & stereo broadcast operations.
Protection against high VSWR, overdrive, overcurrent and overtemperature.
Compliance to IEC safety standards.
Compliance to ETSI – CCIR – FCC standards.
Entire transmitter can be switched off through an emergency button.
High redundancy guaranteed by 10 power modules of 2.5 kW RF power.
All measurement and working parameters are displayed on front panel.
Remotely controllable by telemetry system.
Design for 24/7 non-stop operation.
The transmitter include an integrated system for automatic and manual switching between two exciters.
In Automatic mode the changeover is activated when active power of exciter falls below 3dB.
| TX25KSS/60D451 | ||
| Parameter | Value | |
| GENERALS | ||
| RF Output Power | 26,25 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 36,4 kW to 35,4 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 780 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 |