R.V.R. Elettronica

FM STATIONS > TX-KSS PLUG-IN SERIES > UP TO 32.000W


TX20K PLUG-IN CA DUAL MONO-RACK

COD. TX20KSS-61D412

Potencia: 20.000W

TX20K PLUG-IN CA  DUAL MONO-RACK

Tunable over entire band (87.5 – 108 MHZ), without tuning. (MONO RACK)

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 2.2 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.




TX20KSS/61D412
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 > 70%
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)
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



ORDERING INFORMATION

  • TX20K PLUG-IN CA DUAL MONO-RACK
    Tunable over entire band (87.5 – 108 MHZ), without tuning. (MONO RACK)