ETG300 – 300W

ETG101

Modulator ETG300 offers the high ETG series performance with 300 W output power.
Exciter in 3 rack units, switching power supply, equipped with telemetry.
Suitable both to drive high power devices and to direct connection in antenna, to cover urban or mountainous areas. Indispensable as reserve apparatus during maintenance in station.
Available with internal stereo board.

ETG300 – 300W

ETG300 – 300W

Highlights

EASY USE

Interface LCD allows ease reading and setting operations of parameters. Final user can password-protect its chosen configurations.

audio quality

3 bars indicate frequency deviation (one for composite signal and two for left and right channels), with peak memory. A histogram on frequency and time axis allows precise monitoring of audio chain performances. An extremely wide and flat audio pass-band, without phase rotation, ensures that the MPX signal is transmitted at high quality without stereo degradation. A programmable ALC (Automatic Level Control) circuit acts on variations of the composite MPX signal, maintaining its level within the range defined by the user.

high performance

The RF amplifier is behind by a ROS meter, that in case of mismatch, gradually decreases the output power up to a safe value, the ETG exciters series might remain in this condition for an indefinite time without damage.

IPF (Intelligent Proportional Foldback)

IPF is an intelligent system that allows the transmitter to stay "ON AIR" into mismatched loads.

Telemetry

It allows remote monitoring and adjustment of the unit's operating parameters. Just an additional standard or GSM modem and HyperTerminal software (© Microsoft Windows) are required.

Modularity

Inside ETG exciters an expansion slot has been designed to place a Stereo Input and Stereo coder board (stereo filter, clipper and pre-emphasis).

PFC CIRCUIT

It allows the first 40 current harmonics emission reduction below the limits imposed by European standards (EN61000-3-2), better functioning of electronic equipment connected to the network, waveform of the current very close than sinusoidal.

REGULATORY COMPLIANCE

All ETG exciters meet the essential requirements of Directive 1999/5/EC.

CUSTOMIZATIONS

On request we can personalize the ETG display with the broadcaster's logo.

Specifications

GENERAL DATA  
Output Nominal Power 1000W adjustable(ETG1000) - 500W adjustable(ETG500) - 300W adjustable(ETG300) - 150W adjustable(ETG151) - 100W adjustable(ETG101)
Maximum peak power 1200W (ETG1000) - 600W (ETG500) - 350W (ETG300) - 159W (ETG151) - 40W (ETG101)
Operating band 87.5 - 108 MHz
Output Low-pass Filter W.B. 87.5 MHz - 108 MHz
RS232/RS485 Yes
Points of measure RF Sample-MPX Monitor
Displayed Parameters More than 50 parameters displayed on a wide graphic LCD
Adjustments From the frontal panel trough LCD /from PC
Microprocessor controlled Yes
Power supply redundancy Yes (ETG1000, option)
Number of MOSFETs 4 (ETG1000) - 2 (ETG500) - 1 (ETG300) - 1 (ETG151) - 1 (ETG101)
RF power stage technology ICEFET & ECOSAVING
MOSFET type BLF278 Philips (ETG1000) - BLF278 Philips (ETG500) - BLF278 Philips (ETG300) - BLF177 Philips (ETG151) - BLF177 Philips (ETG101)
Number of power supplies 1 or 2 (ETG1000) - 1 (ETG500) - 1 (ETG300) - 1 (ETG151) - 1 (ETG101)
Dimensions: Rack units 3U
Dimensions: W - H - D 50 - 13 - 44 cm (50 - 13 - 44 cm ETG1000)
Weight 21÷ 24kg (ETG1000) - 18kg (ETG500) - 18kg (ETG300) - 15kg (ETG151) - 15kg (ETG101)
Nr. cooling fans amplifiers 2 + 2 (ETG1000) - 2 (ETG500) - 2 (ETG300) - 1 (ETG151) - 1 (ETG101)
   
INSTALLATION REQUIREMENTS
Power supply 110-240 VAC
Power consumption 1,6KW (ETG1000) - 0,9KW (ETG500) - 0,5KW (ETG300) - 0,3KW (ETG151) - 0,24KW (ETG101)
Overall Efficiency 60%Typ (ETG1000) - 52%Typ (ETG500) - 43%Typ (ETG300) - 43%Typ (ETG151) - 43%Typ (ETG101)
   
ENVIRONMENT  
Temperature range (operating) 0 - +45 °C
Temperature range (non operating) -20 - +50 °C
Humidity range (operating) 95% a 40 °C
Humidity range (non operating) 90% a 65 °C
Altitude range (operating) <4600 meters
Altitude range (non operating) <15000 meters
   
To details to download the brochure.

TESTIMONIALS

Oscar Medinaoscarmedina
Panama
Engineer

20 January 2010

Watch video (spanish)

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