50KW AM TRANSMITTER
DSW50k: 100%, modular-redundant equipment of brilliant and transparent sound. Composed for twenty-four (24) 3.450W each RF modulator, more one RF output tube, high capacity modulation 155% to nominal power and 88% efficiency. The DSW-series include: anti- LIGHTNING output filter design. Power level compensator for main supply fluctuations. Power level reduction with a high ROE level. “SMS or WEB REMOTE CONTROL BUILT-IN, PARALLEL FINAL RF COMBINER AND PLUG RF POWER AMPLIFIER”.
PRINCIPAL FEATURES OF 50KW AM TRANSMITTER
Output Power v/s Modulation: 50.000 Watts to 135% de modulation (peak)
Frequency Range: 2,5Mhz to 11.0Mhz.
VSWR: 2:1 (max.)
Audio Frequency Response: +/-1 dB within 30Hz-9KHz.
THD Distortion: Better than 1,5% de 30hz a 10Khz.
Frequency Stability: +/- 1Hz, 0ªC - 40ªC
Carrier shift: Better than1,5% 0 and 90% modulation.
Harmonic Attenuation: meets FCC/CCIR standard.
Efficiency: Better than 78%.
Temp\Humidity Operation: 0-40C / 0%-95% No Cond.
Altitude: 0 to 3.000 m.s.n.m.m.
Impedance & RF Connectors: 50-Ohms un-balance / 6-1/8” flage type.
S/N: Better than -63 dB/400Hz to nominal power.
Audio Input: 600 Ohms Un-balance. 0db-15dB for modulation.
Main Supply: 380V-50/60Hz +/-10%, 3-Phase. Other upon customer request.
Dimensions (W;H;D): 570 ; 200; 190 cm. Weight 1790kg.
1.750W RF Modulated Power Amplifier PA-1750
* 06 Independent Class-E power Amplifier
* 12 Power Mosfet HEXFET type
* Temperature / RF-Unbalance P.A. Led front signaling.
* Serial RF Combiner into Power Amplifier
* 1050W reserved to 50kw +135% Peak Mod.
Protections: Individual Modulator Amplifier Protections:
1.- Fuse Failure.
2.- RF-Mosfet damaged / Un-balance
3.- Over Temperature Alarm.
These protections electronically disconnect the faulty module without disrupting the equipment.
Global Protections:
* Main Supply: Surge Protector; Over Voltage, Over Temp. & Over Power.
* Output Filter: Anti- Lightning output filter design, Spark-gap. Support high VSWR, >2:1.
* Power level reduction with a high ROE level, TX doesn’t get out the air.
ALL EQUIPMENT CONTROL FROM YOUR
HAND
GSM/GPRS & Web LAN-ip Telemetry System Built-in
Allows Control: Power Level, ON/OFF, Reset Alarm & status, Monitoring measurements...and more.
Day schedule RF output power.