The Mini-Circuits ZHL-4240+ is a connectorized RF power amplifier delivering 42 dB typical gain across 600 MHz to 4200 MHz. Built for test instrumentation, satellite communications, and cellular infrastructure, this 50 Ω module combines high output power with exceptional gain flatness. The amplifier produces +28 dBm to +31 dBm output power with a third-order intercept point of +38 dBm typical, making it suitable for demanding signal conditioning and system validation tasks.
Technical Specifications
• Frequency Range: 600 MHz to 4200 MHz
• Gain: 39 dB minimum, 42 dB typical, 47 dB maximum
• Gain Flatness: ±1.3 dB typical, ±1.8 dB maximum
• Noise Figure: 8.0 dB typical
• Output Power (P1dB): +28 dBm to +30 dBm typical
• Output Power (P3dB): +29 dBm to +31 dBm typical (1 W equivalent)
• IP3: +38 dBm typical
• Input/Output VSWR: 2.5:1 maximum
• Supply Voltage: +15 V typical, +20 V maximum
• Supply Current: 1.0 A typical
• Operating Temperature: −20°C to +65°C
• Connectors: SMA Female
• Case: U36 aluminum alloy, 177.80 × 82.55 × 54.10 mm
– Key Features
• High gain with tight flatness across wide bandwidth
• Moderate noise figure for cascade amplification
• 1 Watt output power capability at 3 dB compression
• Low VSWR input and output impedance matching
• Compact connectorized module with integral mounting bracket
• Optional external heatsink support (1.3°C/W thermal resistance required)
– Typical Applications
• Test and measurement instrumentation
• Satellite communications systems
• Cellular and mobile infrastructure (including Band 71)
• GPS signal conditioning
• Laboratory and field testing
– Compatibility & Integration
50 Ω impedance matching throughout. Operates from ±15 V to ±20 V single supply. Standard SMA connectors enable direct integration into existing RF systems and measurement setups.
