TXKG3 Automatic Antenna Switcher 3–30MHz HF M-Type
TXKG3 Automatic Antenna Switcher 3–30MHz HF M-Type
TXKG3 Automatic Antenna Switcher – 3–30MHz HF Band with M-Type Connectors
The TXKG3 Automatic Antenna Switcher is a professional-grade RF switching solution designed for HF radio operators who need seamless, hands-free antenna management. Built from durable metal construction with M-type (SO-239/PL-259) connectors, this switcher automatically selects the correct antenna interface based on operating frequency — no manual intervention required. Made in Mainland China.
Key Features
- Fully Automatic Switching: Instantly matches the right antenna interface based on RF frequency, eliminating the hassle of manual switching and boosting on-air efficiency.
- Wide Compatibility: Supports single, dual, and triple antenna configurations, making it suitable for a broad range of amateur radio and communications setups.
- VSWR Protection: Built-in VSWR safeguard with clearly defined power handling limits (≤100W) protects your equipment from overload damage.
- Real-Time Display: Integrated display screen shows live power values, VSWR readings, frequency band settings, and the currently active antenna port — giving you a complete operational overview at a glance.
- Low-Loss M-Type Connectors: Delivers stable RF transmission with isolation ≥45dB and insertion loss ≤0.3dB, ensuring signal integrity across the entire frequency range.
Technical Specifications
| Model | TXKG3 |
| Frequency Range | 3MHz – 30MHz (HF) |
| Maximum Power | ≤100W |
| Minimum Input Power | ≥15W |
| Impedance | 50Ω |
| Insertion Loss | ≤0.3dB |
| VSWR | ≤1.2 |
| Isolation | ≥45dB |
| Connector Type | M-Type (SO-239 / PL-259) |
| Power Input | DC5521 9–15V (Center Positive), 500mA |
| Material | Metal |
| Color | Black |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1× TXKG3 Automatic Antenna Switcher
Note: Package includes only the item listed above. Other accessories or antennas shown in product images are not included. Slight color variations may occur due to monitor settings. Dimensional tolerance is ±1–3cm.
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Frequently Asked Questions
Q: What frequency range does the TXKG3 Automatic Antenna Switcher cover?
A: The TXKG3 is designed for HF operation, covering a frequency range of 3MHz to 30MHz. It automatically selects the appropriate antenna port within this range without any manual input.
Q: How many antennas can I connect to the TXKG3 at once?
A: The TXKG3 supports single, dual, and triple antenna configurations, giving you the flexibility to connect multiple antennas and let the switcher choose the best one for your current operating frequency automatically.
Q: What power supply does the TXKG3 require?
A: The TXKG3 requires a DC5521 power connector with 9–15V input (center positive, outer negative) at 500mA. It handles RF signals up to 100W and requires a minimum of 15W input power for automatic switching to activate.
Q: What type of antenna connector does the TXKG3 use?
A: The TXKG3 uses M-type connectors (equivalent to SO-239/PL-259), which are common in HF amateur radio setups. Insertion loss is ≤0.3dB and isolation is ≥45dB for stable, low-loss signal transmission.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.