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HELIOS 20, 50, 100
FM vysílač / Budič 20, 50, 100W
Technical Features
| Output power | 87,5 MHz - 108 MHz
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| Output power | 20/50/100 W
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| RF output connector | N
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| RF output impedance 50 Ω | 50 Ω
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| Programming steps | 10 kHz
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| Frequency stability | < 10-6
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| Modulation type | FM - F3
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| Harmonic rejection | > 75 dBc @ 87,5 - 137 MHz
| > 70 dBc
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| Power supply | 88 - 264 VAC, 47 - 63 Hz
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| Power consumption | H 60 VA @ 20 W, 230 V - 50 Hz
| H 240 VA @ 100 W, 230 V - 50 Hz
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| Pre emphasis mono | 0 μs / 50 μs / 75 μs
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| Size | 19 - 2U
| (89 (H) x 480 (l) x 493(L) mm)
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(3.5(H) x 19 (W) x 19.4(L))
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| Operating temperature | 5°C - 45°C (41°F - 113°F)
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| Weight | H 10 kg (22 lbs)
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Mono Operation
| Input impedance | 2 kΩ
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| Audio connector | BNC
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| Input level for ± 75 kHz deviation | - 6 dBu → + 12 dBu
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| Bandwidth | 40 Hz - 15 kHz < ± 0,5 dB
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| Out of band rejection | > 35 dB @ 19 kHz
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| Distortion for ± 75 kHz deviation | < 0,25 %
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| Distortion for ± 100 kHz deviation | < 0,3 %
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| AM modulation | < 1 %
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| FM S/N ratio | > 70 dB @ ± 75 kHz
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| Intermodulation distortion | < 0,05 %
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Multiplex operation
| Input impedance | 2 kΩ
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| Audio connector | BNC
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| Input level | - 6 dBu → + 12 dBu
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| Bandwidth | 40 Hz - 55 kHz < 0,2 dB
| 20 kHz - 100 kHz < 0,4 dB
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| Distortion for ± 75 kHz deviation | < 0,25 %
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| Distortion for ± 100 kHz deviation | < 0,3 %
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| FM S/N ratio | > 70 dB @ ± 75 kHz
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RDS or SCA Auxiliary
| Input impedance | 2 kΩ
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| Input connector | BNC
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| Bandwidth | 50 kHz - 100 kHz
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| Modulator phase difference | < 2°
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Controls
| Frequency programming | LCD or RS232
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| LCD and RS232 controls Frequency / Deviation / | Frequency / Deviation /
Direct power / Reflected power /
VSWR / Right and Left level /
RDS name (if available)
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| Alarms | PLL indication
| V.S.W.R.
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Power loss
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| Left, right and modulation adjustments | Front panel potentiometer
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| Power adjustment | Front panel potentiometer
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| RF test | Front panel
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| Output level | 10 mW = 100 W
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Available optional boards
| Stereo encoder | CSS
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| Receiver / demodulator Control | TUN
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| Remote control and remote monitoring | TS
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| Digital remote control and remote monitoring | TN
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 datasheet (PDF)
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