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Sielco RFB 2000GX

10,241.00 6,145.00

2kW FM Amplifier

RFB 2000GX model is the 2000W amplifier of the innovative GX family produced by Sielco.

SKU: Sielco RFB 2000GX Categories: , ,
Brands: Sielco


RFB 2000GX model is the 2000W amplifier of the innovative GX family produced by Sielco. It is appreciated for the great efficiency and versatility due to three main reasons: LIGHT weight, MINIMUM size and LOW consumption. To buy an RFB 2000GX, as anyone other model of the GX line, means to make a winning choice, to enjoy all the relevant advantages during all the life of the product and to spare money: less transport costs, less needed space to install it and the lowest energy consumption during the work. RFB 2000GX is simple to set up: very easy to configure thanks to the intuitive human interface equipped with an elegant LCD graphic display, a multi-function jog control and only a few other control buttons. The high flexibility of this amplifier could be even increased through the use of important options like: telemetry/remote control systems, Ethernet connection with SNMP protocol, high quality stereo encoder, audio digital board in accordance with AES/EBU directive and RS232/485 serial port to enable an easier integration with other instruments. The modern and attractive design of our GX transmitters reflects the state-of-the-art technology of this trustworthy model that requires a few maintenance and that allows to spare time and money. N.B.: the amplifier characterized by the code RFB needs an exciter like our EXC30GT as driver.

Additional information

Weight 21 kg
Dimensions 59 × 49 × 14 cm




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  • Frequency range:from 87,5 to 108 MHz
  • FM modulation:75 KHz peak deviation (adjustable)
  • Audio and Mpx input level:from -3,5 to +12,5 dBm @ 75 KHz deviation
  • Auxiliary input channel level:SCA – from -12,5 to +3,5 dBm @ 7,5 KHz deviation
  • RDS – from -24 to -8 dBm @ 2 KHz deviation
  • Modulation distortion:75 KHz deviation – <0.05%, 0.02% typical
  • S/N ratio, mono:30÷20000Hz – >76 dB, 80 typical
  • CCIR – >75 dB, 79 typical
  • S/N ratio, stereo:30÷20000Hz – >72 dB, 77 typical
  • CCIR – >68 dB, 72 typical
  • Audio channels frequency response:30÷15000 Hz – ±0.1 dB
  • Pre-emphasis time constant:25/50/75 μs selectable
  • Rated RF output power:2000W, 2500W, 3000W, 4000W
  • Transmitter tuning steps:10/100 KHz
  • Output power ALC stability:±3%
  • Harmonic and spurious emissions:<70dB (harmonic), <80 dBc (spurious)
  • RF output connector:7/8″
  • Power supply:Single phase – 230 VAc ± 15%
  • Three phase – 230 or 400 Vac ± 15% with neutral line
  • Total consumption at rated RF power:<3900W (EXC2500GT), <6400W (EXC4000GT)
  • Operative temperature range:suggested – from 0 to 35 °C
  • extreme – from -10 to +50 °C max (with derating)
  • Relative humidity:up to 95% not condensing
  • Dimensions (WxHxD):483x177x650 mm
  • Weight:30kg

RFB 2000GX Brochure

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