Comet CAT-300 1.8–50 MHz Manual Antenna Tuner
Brand:
Comet
Comet CAT-300 1.8–50 MHz Manual Antenna Tuner
Comet CAT-300 1.8–50 MHz Manual Antenna Tuner
Comet CAT-300 1.8–50 MHz Manual Antenna Tuner
The Comet CAT-300 is a compact manual antenna tuner designed for amateur radio operation from 1.8 MHz through 50 MHz. Utilizing a high-efficiency T-network matching circuit with an integrated cross-needle SWR/power meter, the CAT-300 provides precise antenna matching for a wide variety of coax-fed antennas while supporting power levels up to 300 watts. Its compact footprint and straightforward controls make it ideal for home stations, portable operation, and HF mobile installations.
Key Features
- Covers all amateur bands from 1.8 MHz to 50 MHz
- Manual T-network antenna matching circuit
- Supports up to 300 Watts PEP SSB/CW operation
- Integrated illuminated cross-needle SWR and power meter
- Simultaneous forward power, reflected power, and SWR indication
- Wide antenna matching range for coax-fed antennas
- Compatible with dipoles, verticals, beams, loops, and portable antennas
- Selectable power measurement ranges for improved accuracy
- Large front-panel tuning controls for precise adjustments
- Low insertion loss matching network design
- Compact desktop form factor
- Heavy-duty variable capacitors for reliable operation
- Built-in antenna selector switch
- Supports multiple antenna configurations
- Easy-to-read analog meter display
- Suitable for HF and 6-meter amateur radio operation
- Durable metal enclosure construction
- Designed for fixed-station, portable, and mobile installations
- Improves transmitter efficiency by reducing SWR
- No external power required for tuner operation
- Backlit meter for improved visibility
- User-friendly manual tuning interface
- Ideal for multi-band amateur radio stations
- High-quality Comet engineering and construction
- Reliable operation across a broad frequency range
Typical Uses
- HF amateur radio stations
- 6-meter amateur radio operation
- Multi-band antenna matching
- Portable HF setups
- Field Day operations
- Emergency communications
- Home and mobile amateur radio installations
In the Box
- Comet CAT-300 Manual Antenna Tuner
- DC power cable for meter illumination
- User manual
| Brand | Comet |
| Model Number | CAT-300 |
| Product Type | Manual Antenna Tuner |
| Tuner Type | T-Network Manual Tuner |
| Frequency Coverage | 1.8-50MHz |
| Maximum Power | 300W PEP |
| Power Rating CW | 300W |
| Power Rating SSB | 300W |
| Impedance | 50 Ohm |
| Meter Type | Cross-Needle SWR/Power Meter |
| Power Measurement Ranges | 30W/300W |
| SWR Measurement | Integrated |
| Antenna Connectors | 2 x SO-239 |
| Transmitter Connector | SO-239 |
| Antenna Selector | 2 Position |
| Matching Circuit | T-Network |
| Meter Illumination | Yes |
| Power Requirement For Meter | 13.8V DC |
| Dimensions | 240 x 80 x 183mm |
| Weight | 2.5kg |
| Application | HF Amateur Radio |
| Application | 6 Meter Amateur Radio |



