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Nautel NX5

Solid State modular 5 kW AM Broadcast Transmitter


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

NX5 Specifications:
• Transmitter Type: Medium wave, AM, 100% solid state
 • Two 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
 • Optional redundant digital single board exciters utilizing FPGA/DSP technology with automatic changeover
 • Pre-correction utilized specifically to improve digital performance
RF Output Power:
 • Carrier Power Range: 0 to 5500 W
 • 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: 7/8" EIA or 1-5/8" EIA
• RF Output Impedance: 50 ohms, unbalanced
• Efficiency: 86% typical at 5 kW
 • 800 peak reflected watts (1.5:1 VSWR @ 5 kW, 100% modulation) results in instantaneous power shutback
 • 200 reflected watts RMS (1.5:1 VSWR @ 5 kW, 0% modulation) results in a graceful power reduction
• Frequency Range: 531 kHz to 1,700 kHz."Quick frequency change capability"
Frequency Stability:
 • ±2 ppm/year over temperature range
 • ±0.3 ppm/year with GPS option
Modulation Capability:
 • 140% positive peak modulation to 5000 W
 • 130% positive peak modulation to 5500 W
Spurious and Harmonic:
 • Meets ITU-R SM.328-11
 • Meets ITU-R SM.329-12
• Voltage: 208 Vac & 380 Vac, 3 phase or to customer specifications
• Power Supply Variation: ±10% voltage, 47 Hz to 63 Hz
Temperature Range:
 • 0°C to + 50°C
 • Derate 3°C per 500 m above sea level (2°C per 1,000 ft)
• Cooling: Forced Air
• Humidity Range: 0% to 95% non-condensing
• Altitude: 0 m to 4,000 m (0 ft to 13,000 ft)
• Meets EN60215: 1996 Safety Requirements for Radio
Transmitting Equipment
• Dimensions: 184.2 cm H x 58.7 cm W x 86 cm D (72.5" H x 23.1" W x 34" D)
• Weight: 261 kg (573 lbs)

*Please consult a broadcast engineer/BSW to determine if this unit is right for your application and you are meeting all of the appropriate legal requirements. You can review the FCC regulations on LPFM and unlicensed usage below.

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