The 4075 linear amplifier is designed and engineered for modern communications which are heavily data orientated, requiring the equipment to work at high duty cycles for extended periods of time. The unique liquid cooled design increases efficiency resulting in less system deterioration due to overheating in the power stages, extending overall equipment service life. The amplifier provides continuous duty cycle (100%) at 1kW.
BARRETT 4050 HF SDR AS EXCITER
The Barrett 4075 amplifier natively supports the Barrett 4050 Transceiver/Exciter which when coupled requires no further tuning or adjustment. A flexible I/O interface and analogue ALC feedback provide the transceiver/exciter full control over final output power.
Some features the 4050 HF SDR provides to the 4075 High power transmitter are:
– 1.6 – 30 MHz continuous coverage
–USB, LSB (SSB), CW, FSK, AM
– Remote control via IP and WiFi
– Compatible with existing 4 & 6 digital selective calling radio networks
– 2G & 3G Automatic Link Establishment (ALE) options
– ARINC ICAO Annex 10 Aeronautical Selcall option
FIELD RE-PROGRAMMABLE
The 4075 system is field re-programmable via USB allowing the end user to update system software.
FLEXIBILITY
An on-board micro SD card provides enhanced flexibility for system language, display customisation and event logging. Customisable auxiliary ports are also available for enhanced system control.
OVERLOAD PROTECTION
Intelligent electronic controls protect the 4075 from input and output overload while providing a sophisticated early warning and a diagnostic interface for system monitoring and event logging.
General Specifications
- Frequency coverage: 1.6MHz to 30MHz
- Frequency stability: ±0.5 ppm (±0.1 ppm optional) -30°C to +60°C (4050 Transceiver/ Exciter)
- Channel capacity: 1000 with 4050 HF Transceiver
- Modes: J3E (USB, LSB) – H2B (AM) – J2A (CW) -(CF (Custom Filter) – ISB (data option)
- Power output: 1000W PEP or 500W PEP
- Duty cycle: 100%, Continuous PEP, CW
- Exciter: 4050 HF SDR transceiver
4075 Linear Amplifier Specifications
- Power Output: CW 1kW or 500W ± 1.5 dB
- Power Gain: +25 dB
- Harmonics & Spurious: Less than -55 dB
- ALC Voltage (output): 0 ~ 10V
- Filter Type: 7 Band LPF
- Dimensions: 178H x 482W x 480D mm excluding handles and I/O connectors
- Power Requirements: 50V dc @ 60A, 24V dc @ 2.5 A max
- Rack Height: 5RU, 19” Rack mount (Amplifier and 50V power supply only)
- Weight: 35 kg (77 lbs)
- Cooling: Liquid cooled, Water, Propylene Glycol mixture
- Temperature: -20°C to +65°C operational, -40°C to +85°C storage
- Humidity: 95% relative, non condensing
- Altitude: 3000 m above sea level (not airborne), 9000m transportation
- Input overdrive protection: +6 dBm max
- Output VSWR protection: 3:1 nominal all magnitude and phases
- Thermal Overload protection: 85°C
- Fault Log: System events and error reporting
- Standards: Designed to meet or exceed:
– FCC/IC/ETS
– CE
– Australia/New Zealand AS/
NZS 4770 2000 and AS/NZS
4582:1999
