The L3Harris AM-7223/URC is a radio frequency amplifier engineered for secure, multi-channel transmission in military and tactical communication systems. This equipment integrates built-in switching networks, diagnostic capabilities, and precision power management to operate reliably in demanding environments.
## Technical Specifications
**Power Supply & Rail Requirements**
• Primary rail: +8.25 VDC at 3 A typical (at P1dB)
• Secondary rail: -12 VDC at 20 mA typical (at P1dB)
• High-voltage supply: +2000 VDC (generated by internal Rectifier/Bleeder PWB Assembly for Tube Assy)
• System supply: +13.5 VDC
• Input power: 115 VAC, 400 Hz
• Rail regulation tolerance: ±2.5% recommended (external regulation required)
**RF Performance**
• Small signal gain: 34.0 dB average at 25°C
• Saturated output power: -2.0 to +4.0 dBm typical
• Harmonic output level: better than -15 dBc @ P1dB
• Third order intermodulation (two-tone): +39 dBm typical
• Input/Output VSWR: 2:1
• Load VSWR: 2:1 for 85% of band, 3:1 maximum; output power degradation at 3:1 VSWR: 1.2 dB typical
**RF Switch Performance**
• Switching speed: 80 ns typical
• Video leakage: <-50 dBm
• Isolation: better than 10 dB
• Non-reflective ports
• PRF switching time: 500 kHz maximum
• Modulation ON/OFF timing: 60 ns typical
## Key Features
• Dual-output switch network configured for separate antenna element polarizations in phased array systems
• Automatic status checking with manual and automatic diagnostic bit (BIT) routines
• Manual and automatic tuning procedures
• Built-in test capability for troubleshooting
## Typical Applications
• Military and tactical secure communications
• Multi-channel RF transmission systems
• Phased array antenna systems
• RF-355 system integration
## Compatibility & Integration
The AM-7223/URC operates as part of larger L3Harris communication architectures. Technical manuals (T.O. 31R2-2URC-101, T.O. 31R2-2URC-103) provide detailed on-equipment operation and maintenance procedures.
