TXKG3 Antenna Switch 1 Radio to 3 Antennas Automatic Switcher for Short Wave Radio

Function Introduction:
1. Supports automatic switching between 1 radio and 3 antennas, adapting to three usage scenarios: automatic matching and switching after setting corresponding frequency bands for three single-band antennas respectively; automatic connection to the frequency band not preset by two single-band antennas when using one multi-band antenna with two single-band antennas; direct use of a single antenna (closing other interfaces and stopping frequency detection).
2. Equipped with a frequency detection function, it can automatically identify the input frequency of the radio and accurately match the antenna interface corresponding to the set frequency band.
3. Built-in VSWR (Voltage Standing Wave Ratio) protection function, the screen displays the VSWR value in real time. When the screen shows an excessively high VSWR prompt, the radio transmission must be stopped, with a maximum protection time limit of ≤5 seconds.
4. Supports power-on menu setting. The frequency band corresponding to each antenna interface can be configured through the panel buttons (range: 3-29M), clearly displaying key information such as the currently connected interface, average power value, and VSWR value.


Features:
1. Convenient automatic switching: No need for frequent manual antenna switching; automatically matches the corresponding antenna interface according to the radio frequency, improving usage efficiency.
2. Multiple usage adaptations: Compatible with different usage scenarios of single antenna, dual antennas, and three antennas, meeting diversified needs.
3. Comprehensive safety protection: Built-in VSWR protection mechanism with a clear maximum power bearing capacity (≤100W), preventing equipment damage due to overload.
4. Clear parameter display: Equipped with a display screen that real-time presents core information such as power value, VSWR value, interface-set frequency band, and currently connected interface, making the operational status clear at a glance.
5. Stable and reliable connection: Adopts M-type connectors with an isolation of ≥45dB and insertion loss of ≤0.3dB, ensuring stable signal transmission and reducing loss.


Specifications:
Frequency range: 3M-30MHz
Maximum bearing power: ≤100W
Minimum input power: ≥15W
Power measurement accuracy: ±10 (Note: Only 5 seconds of protection is provided. Beyond this 5-second protection period, the circuit will melt due to high temperature and overheating.)
Impedance: 50Ω
Insertion loss: ≤0.3dB
VSWR (Voltage Standing Wave Ratio): ≤1.2
Isolation: ≥45dB
Connector type: M-type
Built-in protection: 50Ω (maximum protection time ≤5 seconds)
Power supply requirement: DC 9-15V (inner positive, outer negative), 500mA


Package Included:
1 x TXKG3 Antenna Switch
1 x Power cable