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ETG151 |
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 ETG151 is 150 W FM exciter in 3 rack units, provided with telemetry.
ETG151 is suitable for driving medium power devices; if connected to an antenna system, it allows to cover urban or mountain areas.
150 W FM exciter in 3 rack units - Available with internal Stereo encoder.
ETG exciters are very light and compact equipment, they can be used both
as exciters and main transmitters and directly connected to the antenna.
High power models have been developed for this application; these are
very useful where compactness, lightness and low-cost are important factors.
- Easy-use
A simple and wide LCD interface ease operating parameters' reading and
settings. Final user can password-protect its chosen configurations.
On request we can personalize ETG displaying on its LCD the broadcaster's
logo.
- 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
- Reliability:
RF amplifier is protected by a VSWR monitor progressively reducing output
power to a safe value in the case of mismatch; ETG exciters can be run
in this condition indefinitely without risks of damage.
- Stability:
an ALC circuit ensures that output power remains constant throughout the
operating frequency band.
- Telemetry:
Standard included in basic equipment, allows remote monitoring and adjustment
of the unit's operating parameters. Just an additional standard or GSM
modem or HyperTerminal software (© Microsoft Windows) is required.
- Modularity:
An expansion slot has been designed to place a Stereo Input and Stereo
coder board (stereo filetr, clipper and pre-emphasis) inside ETG
exciters.
| MAIN FEATURES |
| Operating band: |
87.5 ÷ 108.0 MHz |
| Frequency step: |
10 kHz |
| Modulation type: |
F3 direct frequency modulation of VCO |
| Power amplifier technology: |
MOSFET |
| Nominal power: |
150 W |
| Output power stability: |
+/- 0.1 dB |
| Output Impedance: |
50 Ohm |
| RF output connector |
"N" female |
| Harmonic and spurious attenuation: |
< -80 dBc |
| Frequency stability: |
within 1 ppm
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| Residual AM: |
asynchronous: 0.1% -
synchronous: 0.2% (typical values) |
| Weight: |
22 Kg |
| Dimensions( W x H x D): |
48.5 x 45.5 x 13.5 cm |
| Power supply voltage: |
115/230 V singlephase |
| Power Consumption: |
300 VA typ. @ 300 W RF |
| Cooling system: |
forced air-cooling |
| AUDIO L/R INPUT |
| Frequency response: |
±0.1dB (16Hz ÷ 15kHz) -45dB @ 19 kHz |
| Stereo separation: |
better than 65dB @ 1kHz |
| Pilot tone: |
19 kHz ± 1Hz |
| Input Impedance: |
10 kOhm - 600Ohm (adjustable) Balanced |
| Gain control: |
-12dB ÷ +12 dB steps by 0.1 dB |
| Connector type: |
XLR female |
| 19KHz attenuation: |
>45 dB |
| MPX INPUT |
| Impedance: |
10kOhm unbalanced input |
| Frequency response: |
± 0.1 dB (16Hz ÷ 100kHz) |
| Gain control: |
-12dB ÷ +12 dB steps by
0.1 dB |
| Intermodulation distortion: |
0.05% two tones 1kHz and 3 kHz measurement |
| THD+N: |
< 0.03% @ 1kHz |
| S/N CCIR: |
better than 72dB referred to 75kHz |
| Pre-emphasis: |
50/75 µs ± 0.1 dB |
| Connector type: |
BNC female |
| SCA INPUT |
| Input Impedance: |
10kOhm unbalanced input |
| Connector type: |
BNC female |
| ENVIRONMENTAL CONDITIONS |
| Operating conditions temperature: |
-10°C ÷ +45°C |
| Non-operating conditions temperature: |
-20°C ÷ +50°C |
| Operating conditions humidity: |
95% @ +40°C |
| Non-operating conditions humidity: |
90% @ +65°C |
| Operating conditions altitude: |
<4600 m s.l.m. |
| Carrying altitude: |
<15000 m s.l.m. |
The above details are referred to
ETG151 model.
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