{"product_id":"mx-s3-sdr-radio-transceiver-switcher-auxiliary-receiver-compatible-with-ic7100-ft-891-450d-991a","title":"MX-S3 SDR Radio Transceiver Switcher\/Auxiliary Receiver Compatible with IC7100 FT-891 450D 991A","description":"\u003cdiv id=\"specification\"\u003e\u003c\/div\u003e\u003cdiv id=\"specification_end\"\u003e\u003c\/div\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003eDescription:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003eThe MX-S3 SDR TR SWITCH is a high-isolation transceiver switch designed to expand a transceiver's radio range with a second receiver, such as an SDR software receiver or connecting a real-time spectrum analyzer. It also supports three auxiliary ports for controlling the power amplifier and receiver squelch function.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003eFeatures:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e1. Dual-Channel Receiver Expansion: Connects a primary transceiver and an SDR receiver, automatically switching antenna paths when the primary device transmits.\u003cbr\u003e2. Dual Control Modes:\u003cbr\u003e- Key Control (SEND Port): Connects to the transceiver's key control port via a 3.5mm cable (supports YAESU\/ICOM).\u003cbr\u003e- RF Sense: Automatically switches upon detecting a transmitted signal (requires shorting a jumper and adjusting the delay).\u003cbr\u003e3. Receiver Protection: Built-in protection circuitry prevents damage to the receiving device due to excessive transmit power.\u003cbr\u003e4. Auxiliary Controls (AUX1\/2\/3):\u003cbr\u003e- AUX1\/AUX2 (MOSFET Control): Outputs a low level (100mA load) when transmitting, used to mute the receiver.\u003cbr\u003e- AUX3 (Relay Control): Selectable low\/high level (1A load) when transmitting. Set to normally open\/closed via a jumper to control amplifier start and stop.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003eSpecifications:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003ePower Supply: 12V ±20% \/ 500mA\u003cbr\u003eImpedance: 50Ω\u003cbr\u003eIsolation: -70dB\u003cbr\u003eInsertion Loss: 0.15dB\u003cbr\u003ePower Handling: 200W (CW\/SSB)\u003cbr\u003eFrequency Range: 0.5 MHz – 440 MHz\u003cbr\u003eAuxiliary Ports: AUX1\/AUX2: 100mA\/30V (MOSFET controlled, transmit low)\u003cbr\u003eAUX3: 1A\/30V (relay controlled, jumper selectable, normally open\/normally closed)\u003cbr\u003eDelay Adjustment: VR1: 40ms – 7s (counterclockwise increases time)\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"font-size: 18px;\"\u003ePackage Included:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e1 x SDR Switcher\u003cbr\u003e1 x Antenna Cable\u003cbr\u003e1 x Control Cable\u003cbr\u003e1 x Power Cable\u003cbr\u003e1 x Power Cord\u003cbr\u003e3 x Converter","brand":"LinkMejor","offers":[{"title":"Black","offer_id":49119944245473,"sku":"BG-2039185-BLACK","price":159.99,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/9317\/8849\/files\/794aa65a-ed4b-43ba-acbd-ef7bfe81ced1.jpg?v=1789396368","url":"https:\/\/ontproduct.com\/products\/mx-s3-sdr-radio-transceiver-switcher-auxiliary-receiver-compatible-with-ic7100-ft-891-450d-991a","provider":"IvySource","version":"1.0","type":"link"}