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HELIOS JR
FM vysílač / Budič 20W





Technical Features


Frequency range 87,5 MHz - 108 MHz
Output power 2 → 20 W
RF Output connector N
RF Output impedance 50 Ω
Programming steps 10 kHz
Frequency stability < 10-6
Modulation type FM - F3
Harmonic rejection > 75 dBc @ 87,5 - 137 MHz
> 70 dBc
Power supply 165 - 264 VAC, 47 - 63 Hz
Pre emphasis mono 0 μs / 50 μs / 75 μs
Size 19" - 1U
(44,5 (H) x 480 (l) x 320 (L) mm)
(1.75" (H) x 19" (W) x 12.6" (L))
Operating temperature 5°C - 45°C (41°F - 113°F)
Weight 4,5 kg (9.9 lbs)

Mono Operation


Bandwidth 40 Hz - 15 kHz @ 0,5 dB
Out band rejection > 35 dB @ 19 kHz
Distortion < 0,25 % @ 75 kHz
AM modulation < 2 %
FM S/N ratio > 70 dB RMS @ 75 kHz
Intermodulation distortion < 0,05 %

Multiplex Operation


Bandwidth 40 Hz - 55 kHz @ 0,2 dB
20 Hz - 100 kHz @ 0,4 dB
Distortion < 0,25 % @ 75 kHz
< 0,30 % @ 100 kHz
FM S/N ratio > 70 dB

Input / Output


RF output N
Input impedance 50 Ω
Mono / Modulation input BNC
Output impedance > 2 kΩ
Modulation level - 3 dBu → + 12 dBu
Mono level - 3 dBu → + 12 dBu
Auxiliary input BNC
Input impedance > 2 kΩ
Bandwidth 50 kHz - 100 kHz

Controls


Frequency programming LCD (+, -, enter)
LCD measurements Direct power
Reflected power
Excursion
Alarms PLL locked
V.S.W.R.
Power loss
Mono or MPX adjustments Front panel potentiometer
Power adjustment Front panel potentiometer

PDFdatasheet (PDF)


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