25KW AM TRANSMITTER
Dsw-25kN: Is a 100% Solid State, modular-redundant equipment of brilliant and transparent sound. Composed for twenty (20) 2.500 watts Plug-in RF modulated power amplifier and high capacity modulation 145% to nominal power and 96% efficiency. The dsw-N series may include AMC dynamic Carrier Control; DUAL DRM/RF-AM Exciter with Automatic Change Over; Anti- LIGHTNING output filter design. Power level compensator for main supply fluctuations. Power level reduction with a high ROE level. SMS and WEB REMOTE CONTROL
PRINCIPAL FEATURES OF 25KW AM TRANSMITTER
Output Power v/s Modulation: 25.000 Watts to 145% de modulation (peak) 27.000 Watts to 100% de modulation (peak).
Frequency Range: 2.550Khz a 11.250Khz Setting one fixed channel
VSWR: 1,5:1 With automatic RF Power Level Reduction.
Audio Frequency Response: +0.7/-0.8 dB within 20Hz-10KHz.
THD Distortion: +/-1% to 90% modulation.
Frequency Stability: +/- 1,5ppm to 0ªC - 40ªC
Carrier shift: Better than1,5% 0 and 90% modulation.
Harmonic Attenuation: meets FCC/CCIR standard.
Efficiency: Better than 75% Without AMC Control.
Temp\Humidity Operation: 0-40C / 0%-95% No Cond.
Altitude: 0 to 3.200 m.s.n.m.m.
Impedance & RF Connectors: 50-Ohms un-balance/3” EIA flange type. Other upon customer request.
S/N: Better than -60 dB, to nominal power @400Hz.
Audio Input: 600 Ohms Un-balance. -10db +15dB for 100% modulation.
Main Supply: 380V-50/60Hz +/-10%, 3-Phase 4-Wire. Other upon customer request.
Dimensions (W;H;D): 100 ; 200; 120 cm. Weight 890kg.
2.500W RF Modulated Power Amplifier PA2K5N
- 09 H Bridge Independent Class-D
- Temperature / RF-Unbalance P.A. Led front signaling.
- Wilkinson-Serial RF Combiner into Power Amplifier
- 40% output RF Power reserved to 25kw +145% Peak Mod.
LCD Touch Status and Monitoring
* Main Supply Voltage and Currents.
* Forward / Reflected Power.
* Vrf / Irf -Pre impulsion Stage.
* Individual PA Voltage / Currents
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.