Bext XL 50 50W Ultra Compact FM Transmitter

The Bext XL50 is a compact, highly reliable and remarkably energy efficient solid state FM transmitter. Delivering high-quality audio in a user-friendly package.

Features:
– Analog FM transmitter
– Standard 19” chassis, 2 RU and 19” in depth
– Greater than 73% efficiency
– Single phase AC
– Carefully built for internal maximized air flow
– Front touch panel menu
– Field replaceable power amplifier
– Strong rack mounting ears
– Front air filter easy to remove, clean and replace
– 6th generation LD-MOS technology
– Integrated FSK ID for translators

Specifications:
Nominal RF Output Power: 55 W
RF Output: N female
Power Amplifier: 1
PA power supply: 1
RF/AC efficiencies of up to 85%
Frequency range: 87.5-108 MHz, front panel and AUI programmable in 10 kHz steps
Start-up time: Typically 5 to 10 seconds
Type of modulation: F3E / F8E direct FM at carrier frequency
Frequency deviation: Nominal ±75 kHz
Automatic foldback protection
Integrated exciter, may be used in modular system
RF Harmonics: Exceeds FCC requirements
RF Spurious: Exceeds FCC requirements

Audio Inputs
– 2 x BNC Connectors supports composite, MPX
– Analog L&R or Mono 600W balanced or unbalanced
– Optional AES-EBU input available
– Option Audio Over IP available

Built-in Stereo Generator Specifications:
Stereo System: FCC standard “Pilot Tone System”
Pilot Tone Frequency: 19 kHz ± 1 Hz
Pilot Tone Deviation: ± 7 kHz nominal
38 kHz Suppression: Greater than 70 dB
38 kHz Tone Generation: Internal Crystal
38 kHz Tone Precision: 38 kHz ± 2 Hz
Audio Filter Attenuation: Greater than 55 dB @ 19 kHz

Audio
Preemphasis: Selectable Flat / 50 / 75 micros.
Wideband Amplitude Response: ± 0.2 dB 30 Hz to 100 kHz
Wideband AM Asynchronous: (FM = no modulation, Ref = 100 % AM, Unweighted, RMS detector, BW 30-100 kHz) less than -68dB, typycal -80dB
Wideband Distortion, THD: Less than 0.1% (typ. 0.05%)
WB Distortion, IMD: Less than 0.1% (typ. 0.05%)
WB Transient IMD: Less than 0.25% (square/sine wave)

AC Power:
– 90 to 260 V
– Single Phase 50 to 60 Hz
– 108 W Consumption @ 50 W operation

IP Connectivity:
SNMP: Manage and monitor the XL 50 from your central management system
SNMP v2: available option
Web Advance User Interface (AUI): Manage and monitor the XL 50 via the internet with a computer, cell phone or tablet

Front Touch Panel Menu and AUI Managing and Monitoring:
– Forward Power Reading
– Reflected Power Reading
– Preemphasis status and selection
– Frequency reading and selection in 10 kHz steps
– Audio input selection
– Modulation level reading
– Stereo generator selection between Enabled/Disabled
– Audio limiter selection between Enabled/Disabled
– Temperature reading
– Efficiency Reading
– Status of FSK ID

Front Panel Connectors:
Micro USB Port: To access user manual file & technical test reports
50 W BNC: For RF Monitoring

Additional Connectors:
1 BNC connector: 19 kHz Output:
Pilot tone 2 Vpp 19 kHz
1 BNC : Baseband / Composite / MPX Output
DB25: For Analog Telemetry & Remote Control
RJ 45s: LAN / WEB connection, optional VOIP, optional SNMP2
USB A: For optional SNMP v2 software
DB9: RS485 for interconnection with other units
SMAs for 10 MHz external reference port and for 1 pps port (optional)

Environmental:
Storage temperature: -4° to 140° Fahrenheit
Operating temperature: 14° to 114° Fahrenheit
Relative humidity: 90% non-condensing
Max operating altitude: 14,765 Ft.
Cooling: Forced air with easily replaceable fans

Physical
Front panel: 19″ x 3.5”
Cabinet depth from front panel: approximately 19”
Weight: 13 lbs