The Kalmus 757LCB is a dual-band RF power amplifier spanning 10 kHz to 1000 MHz, engineered for linear amplification across laboratory, communications, and RF immunity testing applications. The unit delivers broad instantaneous bandwidth suitable for sweep, pulse, and continuous-wave operation with low compression at rated power. A single power supply serves both bands, while internal coaxial relay switching and unified input/output connectors simplify integration. VSWR protection, RF power sensors, and automatic leveling control (ALC) safeguard the amplifier and connected loads against overdrive conditions. RF gain control enables precise output adjustment across the operating range.
## Technical Specifications
**Frequency Range:** 10 kHz to 1000 MHz
**Power Output:** 10 to 100 Watts (series range)
**Performance Characteristics:**
• Linear amplification with low compression at rated power
• Broad instantaneous bandwidth for sweep and pulsed operation
• RF gain control with automatic leveling control (ALC)
• VSWR protection for load and amplifier safeguarding
• RF power sensors for overdrive and load protection
• Blanking functionality
## Key Features
• Dual-band operation with single unified power supply
• Internal coaxial relay band switching
• Single input/output connector configuration
• Fully featured remote control capability
• Optional GPIB and RS232 control interfaces
• Safety interlock input
• Optional rear panel connectors
• Rack-mountable construction
## Typical Applications
• General-purpose RF laboratory measurements
• Communications testing and development
• Conducted and radiated EMC immunity testing
• Wideband RF signal amplification
## Compatibility & Integration
The 757LCB integrates with remote control systems via GPIB and RS232 options, enabling full command and monitoring of front panel functions from external controllers and automated test systems.
