Service manual for the CG-3000 automatic antenna tuner with overview, specifications, schematics, PCB layout and parts list.
The CG-3000 automatic antenna tuner provides power protection, regulation, relay driving, SWR, phase and impedance detection, and CPU control for tuning RF signals. It can tune frequencies from 1.8 MHz to 30 MHz and store up to 200 memory channels for quick retuning.
The manual includes a system overview, block diagram, workflow description, full specifications, schematic diagrams, PCB layout, and a detailed parts list to assist service technicians in maintenance and repair.
| Tunable frequency | 1.8 – 30 MHz |
|---|---|
| Input impedance | 50 Ω |
| Input power | 10 – 200 W PEP |
| Power supply voltage | 12 V ±10 % |
| Current consumption | < 0.8 A |
| Auto tuning time (first tune) | ≈ 2 seconds |
| Memory tuning time | < 20 ms |
| Number of memory channels | 200 |
| Weight | 1.8 kg (without accessories) |
| Dimensions (L × W × H) | 310 mm × 240 mm × 72 mm |
It can tune from 1.8 MHz to 30 MHz.
The tuner stores up to 200 memory channels.
It accepts input power from 10 W to 200 W PEP.