The dbSpectra HC10200-03K is a 3-channel control station combiner engineered for the 850–960 MHz band in demanding industrial RF environments. This hybrid combiner integrates transmit and receive paths with exceptional isolation and low insertion loss, supporting 50 W continuous power per channel across all ports. Built-in bypass relay provides automatic failover on power or amplifier fault, ensuring system continuity. The unit operates from 110–240 VAC (50/60 Hz) or 12 VDC, consuming 30 W (AC) or 18 W (DC), and mounts directly into standard 19-inch EIA racks.
## Technical Specifications
• **Frequency Band:** 850–960 MHz
• **Channels:** 3
• **Transmitter-to-Transmitter Isolation:** 60 dB (min) / 70 dB (typ)
• **Transmitter-to-Receiver Isolation:** 60 dB (min) / 70 dB (typ)
• **Antenna-to-Transmitter Isolation:** 45 dB (min) / 55 dB (typ)
• **Receiver-to-Receiver Isolation:** 60 dB (min)
• **Transmitter Return Loss:** 14 dB (min)
• **Receiver Return Loss:** 10 dB (min)
• **Power Rating:** 50 W continuous per channel
• **Frequency Separation:** Unrestricted
• **Operating Temperature:** −30 to +60 °C
## Key Features
• Dual power input: 110–240 VAC or 12 VDC nominal
• Integrated bypass relay with automatic failover logic
• N(F) input connectors; D-sub amplifier interface
• Aluminum chassis with black finish
• Heavy-wall fiberglass construction (¼ inch minimum); brass tubing backbone with soldered brass radiating elements; solid copper hard-line internal feedlines
• Integral shock absorption and mast bonding system
## Typical Applications
• Multi-channel transmit/receive systems in the 850–960 MHz spectrum
• Mobile radio infrastructure combining and splitting
• Analog and digital radio networks
• Control station RF distribution in industrial and emergency-response environments
## Compatibility & Integration
The HC10200-03K operates with both analog and digital radios. Unused ports require termination with a 1 W N-type 50 Ω load (dbSpectra model DB8926) for optimum performance. Models in this series support expansion via combining modules, enabling channel scaling from standalone units to multi-channel configurations.
