{"product_id":"zdkg-3mhz-30mhz-100w-1-to-3-shortwave-antenna-automatic-switch-with-m-type-connector-domestic-microcontroller","title":"ZDKG 3MHz-30MHz 100W 1-to-3 Shortwave Antenna Automatic Switch with M-type Connector (Domestic Microcontroller)","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- Adopting domestically produced microcontroller with high cost-effectiveness.\u003cbr\u003e- Convenient Automatic Switching: Eliminates the need for frequent manual antenna switching; automatically matches the appropriate antenna interface based on RF for frequency, improving efficiency.\u003cbr\u003e- Wide Application: Compatible with single, dual, and triple antenna applications, meeting diverse needs.\u003cbr\u003e- Comprehensive Safety Protection: Built-in VSWR protection mechanism with clearly defined power handling limits (≤100W) to prevent overload damage.\u003cbr\u003e- Clear Parameter Display: Equipped with a display screen that shows real-time power values, VSWR values, interface for frequency band settings, and currently connected interfaces, providing a clear overview of the operating state.\u003cbr\u003e- Stable and Reliable Connection: Employs for M-type connectors with isolation ≥45dB and insertion loss ≤0.3dB, stable transmission and reducing loss.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e- Frequency Range: 3M - 30MHz\u003cbr\u003e- Power Handling Capacity: Max. 100W\u003cbr\u003e- Minimum Input Power: ≥20W\u003cbr\u003e- Measurement Accuracy: Power ±10%, SWR ±10%\u003cbr\u003e- Impedance: 50Ω\u003cbr\u003e- Insertion Loss: ≤0.3dB\u003cbr\u003e- Voltage Standing Wave Ratio (VSWR): ≤1.2\u003cbr\u003e- Isolation: ≥45dB\u003cbr\u003e- Connector: Type M (M Connector \/ SO-239)\u003cbr\u003e- Built-in Protection: 50Ω (Protection time limit ≤5 seconds)\u003cbr\u003e- Power Supply: DC 9-15V, 500mA\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Antenna Switch\u003c\/p\u003e","brand":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products, Audio Amplifer and Decoders","offers":[{"title":"Default Title","offer_id":41262289059889,"sku":"105678","price":79.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/20261014154825_76628a44.jpg?v=1791971762","url":"https:\/\/www.thanksbuyer.com\/products\/zdkg-3mhz-30mhz-100w-1-to-3-shortwave-antenna-automatic-switch-with-m-type-connector-domestic-microcontroller","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}