{"product_id":"comtech-lbc-4000","title":"Comtech LBC-4000 L-Band Up\/Down Converter","description":"\u003cp\u003eThe Comtech LBC-4000 converts between L-band (950–2000 MHz, 2150 MHz optional) and a 70 MHz (140 MHz optional) IF, so legacy 70\/140 MHz modems can work with L-band block converters. Its 1RU chassis holds two front-accessible up or down converter modules with dual OR-ed power supplies; the LBC-4000-ST version holds one module and adds front-panel sample ports.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMeets or exceeds MIL-STD-188-164A\u003c\/li\u003e\n\u003cli\u003eTwo hot-swap up or down converter modules\u003c\/li\u003e\n\u003cli\u003e70 ±18 MHz IF (140 ±36 MHz optional)\u003c\/li\u003e\n\u003cli\u003e950–2000 MHz L-band (950–2150 MHz optional), 1 kHz steps\u003c\/li\u003e\n\u003cli\u003e50 dB gain adjustment; field-selectable spectral inversion\u003c\/li\u003e\n\u003cli\u003eInternal or external 5\/10 MHz reference; redundant option\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eLBC-4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eComtech LBC-4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eL-band range\u003c\/th\u003e\n\u003ctd\u003e950–2000 MHz (950–2150 MHz optional), 1 kHz steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIF\u003c\/th\u003e\n\u003ctd\u003e70 ±18 MHz (140 ±36 MHz optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput P1dB\u003c\/th\u003e\n\u003ctd\u003e+10 dBm min.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThird-order intercept\u003c\/th\u003e\n\u003ctd\u003e+20 dBm min.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCarrier spurious\u003c\/th\u003e\n\u003ctd\u003e-60 dBc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNon-carrier spurious\u003c\/th\u003e\n\u003ctd\u003e-75 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePhase noise\u003c\/th\u003e\n\u003ctd\u003eExceeds MIL-STD-188-164A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStability\u003c\/th\u003e\n\u003ctd\u003e1 x 10^-9\/day; 1 x 10^-8 over 0–50 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003ctd\u003e1RU, two converter modules, dual OR-ed power supplies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInterfacing 70\/140 MHz modems to L-band BUCs and block converters\u003c\/li\u003e\n\u003cli\u003eMilitary earth terminals needing MIL-STD-188-164A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\u003ch4\u003eCan the LBC-4000 drive a block up converter?\u003c\/h4\u003e\u003cp\u003eYes. Its L-band output can drive the Comtech MBT-4000 or any BUC with an L-band input.\u003c\/p\u003e\u003ch3\u003eNeed it installed, aligned or supported?\u003c\/h3\u003e\u003cp\u003eDigisat engineers install, commission and maintain satellite ground systems for government agencies, teleports and broadcasters worldwide. \u003ca href=\"\/pages\/request-a-quote?service=1\u0026amp;product=Comtech%20LBC-4000%20L-Band%20Up%2FDown%20Converter\u0026amp;mpn=LBC-4000\"\u003eRequest installation or engineering support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Comtech","offers":[{"title":"Default Title","offer_id":67966341874031,"sku":"CMT-LBC-4000","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/0528\/1135\/files\/comtech-lbc-4000-l-band-up-down-converter.jpg?v=1793924567","url":"https:\/\/digisat.org\/products\/comtech-lbc-4000","provider":"Digisat International","version":"1.0","type":"link"}