{"product_id":"868-915mhz-filtered-preamplifier-with-transmit-bypass","title":"868\/915MHz Filtered Preamplifier with Transmit Bypass","description":"\u003cp\u003eThis unit is a filtered preamp designed to go between a radio transceiver and an antenna which gives excellent performance gains for reception and \u003cstrong\u003ebypasses the preamplification circuit when a transmission is detected\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePower is either via bias tee or a \u003ca href=\"\/nl\/products\/usb-a-to-usb-c-cable-1m\"\u003eUSB-C cable\u003c\/a\u003e\u003cspan\u003e (not included).\u003c\/span\u003e. Bias-tee voltage input is 5V.\u003c\/p\u003e\n\u003cp\u003eUsing a SAW bandpass filter and a low noise amplifier (LNA), it stops out-of-band intermodulation while providing additional gain for increased sensitivity. The LNA is before the SAW filter. These particular models are tuned for use with frequencies centred on \u003cstrong\u003e868MHz\u003c\/strong\u003e \u003cstrong\u003e(usable 863-876MHz) or 915MHz (893MHz-935MHz)\u003c\/strong\u003e. The LNA provides around 15dB of gain at 868\/915MHz.\u003c\/p\u003e\n\u003cp\u003eSMA female connectors are fitted for antenna input and radio output, a blue power indicator is provided which switches to red to indicate the unit is in bypass mode.\u003c\/p\u003e\n\u003cp\u003eMax TX power +15dBm (30mW). TX detection threshold -5dBm (+\/-2dBm). Originally designed to support a demand within the Helium cryptomining scene.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDon't need the transmit bypass?\u003c\/strong\u003e \u003ca href=\"\/nl\/products\/868mhz-filtered-preamplifier\"\u003eCheck out the standard 868MHz pre-amplifier here\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/store.uputronics.com\/files\/FPA-TXB-V6.03.pdf\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/store.uputronics.com\/files\/LNAMechcanicalDiagramV2.pdf\"\u003eMechanical Diagram\u003c\/a\u003e \u003cem\u003e(showing lug kit which is not included and not yet stocked - let us know if you would like us to stock the lugs!)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Uputronics","offers":[{"title":"Default Title","offer_id":50847262572817,"sku":"106036","price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/868-915mhz-filtered-preamplifier-with-transmit-bypass-uputronics-106036-43011427664067.jpg?v=1735209439","url":"https:\/\/abcd3032.myshopify.com\/nl\/products\/868-915mhz-filtered-preamplifier-with-transmit-bypass","provider":"Tayyab Zak","version":"1.0","type":"link"}