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Nautel NX50


50kw AM transmitter

BSW PART: NX50

NX50.jpg
Modern, Efficient, Digital High Power Nautel invented the modern solid state broadcast transmitter over 40 years ago. Five generations of transmitter design know-how have been applied to the NX Series resulting in the most modern and reliable high power transmitters available today. Choose from surprisingly compact standalone transmitter designs with outputs from 3 kW to 400 kW. These discrete transmitters can be combined to achieve power outputs of up to 2 MW.

Main Features:
• Conservatively engineered building block
• High reliability and on-air serviceability
• Industry’s best digital transmitter
• High power combining
• Class-leading space efficiency
• Ease of operation & ownership
• Safety without compromise
• Energy savings and cleaner environment
• Integration services
• Standard power outputs: 3 kW to 400 kW
• Custom systems delivered to 2 MW
• Advanced user interface (AUI)
• Power saving MDCL
• PhoneHome™
• HD MER Instrumentation

NX50 Specifications:
GENERAL:
• Transmitter Type: Medium wave, AM, 100% solid state
Configuration:
 • Twenty RF power modules, each including a single integrated RF amplifier/modulator
 • No frequency dependant parts in RF module
 • Each module is hot pluggable and has internal microcontroller for protection and monitoring over a serial bus
 • Short circuit protection at the module level offers an added layer of protection
 • Dual redundant digital single board exciters utilizing FPGA/DSP technology with automatic changeover
 • Pre-correction utilized specifically to improve digital performance
 • Redundant low voltage power supplies
RF Output Power:
 • Maximum: 75 kW RMS
 • Peak Power: 288kW
 Carrier Power Range:
  • Continuously adjustable from 0 to 55 kW in 100 W steps 
  • Up to 62 preset levels, presets may include other operational parameters such as DRM vs Analog and different program inputs
  • Output level stabilized against AC supply voltage variations
  • Built in Dynamic Carrier Control
  • Built in AM stereo
• RF Output Connection: 3 1/8 EIA female standard, other outputs on request
• RF Output Impedance: 50 ohms, unbalanced
• Efficiency: 90% typical at 50 kW
RF Load VSWR:
 • 8000 peak reflected watts (1.5:1 VSWR @ 50 kW, 100% modulation) results in instantaneous power shutback
 • 2000 reflected watts RMS (1.5:1 VSWR @ 50 kW, 0% modulation) results in a graceful power reduction
• Frequency Range: 531 kHz to 1,620 kHz. "Quick frequency change capability"
• Frequency Stability: ±2 ppm over temperature range (Optional 300 ppb ovenized source with GPS option)
Modulation Type:
 • 6 phase direct digital modulation
 • 1.8 MHz modulation sample rate
Modulation Capability:
 • 140% positive peak modulation to 50 kW
 • 130% positive peak modulation to 55 kW
Spurious and Harmonic:
 • 80 dB or more below carrier at 50 kW
 • Meets ITU-R SM.328-10
 • Meets ITU-R SM.329-9
AC INPUT:
• Voltage: 340 V to 510 V, 3 phase or to customer specifications
• Power Supply Variation: ±10% voltage, 47 Hz to 63 Hz*
Power Consumption:
 • 55.5 kW typical at 50 kW, 0% modulation
 • 85 kW typical at 50 kW, 100% modulation
• Cos (theta): 0.95 typical
ENVIRONMENTAL:
Temperature Range:
• 0°C to + 50°C
• Derate 3°C per 500 m above sea level (2°C per 1,000 ft)
• Humidity Range: 0% to 95% non-condensing
• Altitude: 0 m to 4,000 m (0 ft to 13,000 ft)
• Cooling Air Requirements: 2,550 m3/hr (1,500 CFM)
SAFETY:
• Meets EN60215: 1976 Safety Requirements for Radio Transmitting Equipment

List Price
$176,400.00
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