{"product_id":"cpi-k4s8","title":"CPI K4S8 3000W S-Band Klystron HPA, 1.6–2.7 GHz","description":"\u003cp\u003eThe CPI K4S8 is a 3000W S-Band GEN IV klystron power amplifier. It delivers 2.5 kW minimum from the klystron (3.0 kW at 2.6 GHz) and 2.0 kW at the flange (2.66 kW at 2.6 GHz), in frequency ranges from 1.6 to 2.7 GHz. A 1.2 kW, 25 MHz-bandwidth version is also available.\u003c\/p\u003e\u003cp\u003eIt runs on three-phase 208 or 380–415 VAC (10.0 kW max.), with separate RF and power supply drawers; the RF drawer is larger below 2.1 GHz. Output power is adjustable over 20 dB in 0.1 dB steps.\u003c\/p\u003e\u003cp\u003eOrder it as K4S8 series; frequency range and channel options are specified when ordering. The GEN IV Klystron HPA Series comes in 4 listed models; compare them on the series page.\u003c\/p\u003e\u003ch3\u003eOther models in this series\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cpi-k4c7\"\u003eK4C7\u003c\/a\u003e: C-band GEN IV\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cpi-k4c8\"\u003eK4C8\u003c\/a\u003e: C-band TouchPower\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/cpi-k4d8\"\u003eK4D8\u003c\/a\u003e: DBS-band TouchPower\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003ca href=\"\/collections\/cpi-gen-iv-klystron-hpa-series-c-s-and-dbs-band-klystron-hpa\"\u003eCompare all 4 CPI GEN IV Klystron Power Amplifiers (KPA) models\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eK4S8 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eCPI GEN IV Klystron HPA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput frequency\u003c\/th\u003e\n\u003ctd\u003e1.6–2.0, 1.7–1.9, 1.7–2.0, 2.0–2.2, 2.15–2.65 or 2.6–2.7 GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput power\u003c\/th\u003e\n\u003ctd\u003eKlystron 2.5 kW (64.0 dBm) min., 3.0 kW at 2.6 GHz; flange 2.0 kW (63.0 dBm) min., 2.66 kW at 2.6 GHz; 900W flange for 25 MHz BW version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBandwidth\u003c\/th\u003e\n\u003ctd\u003e8 MHz (-1 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGain at rated power\u003c\/th\u003e\n\u003ctd\u003e70 dB min. (60 dB for 900W KPA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGain stability\u003c\/th\u003e\n\u003ctd\u003e±0.25 dB\/24 h max.; 1.0 dB max. 20–40 °C; ±2.5 dB max. 0–50 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAM\/PM conversion\u003c\/th\u003e\n\u003ctd\u003e4°\/dB max. at rated power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHarmonics\u003c\/th\u003e\n\u003ctd\u003e-80 dBc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntermodulation\u003c\/th\u003e\n\u003ctd\u003e-29 dBc, two equal carriers at 7 dB below rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary power\u003c\/th\u003e\n\u003ctd\u003e3-phase, 208 VAC or 380–415 VAC ±10%, 47–63 Hz; 10.0 kW max. (9.0 kW at rated, 5.0 kW at -13 dB, typ.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling\u003c\/th\u003e\n\u003ctd\u003eForced air with separate klystron collector path; 250 cfm min. at sea level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnections\u003c\/th\u003e\n\u003ctd\u003eType N female input; CPR-430 grooved output below 2.10 GHz (CPR-340G above); Type N female monitors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (W × H × D)\u003c\/th\u003e\n\u003ctd\u003eRF drawer 19 × 23 × 34 in above 2.1 GHz, 19 × 24.5 × 42 in below; power supply 19 × 8.75 × 24 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eRF drawer 280 lb with klystron; power supply 100 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\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=CPI%20K4S8%203000W%20S-Band%20Klystron%20HPA\u0026amp;mpn=K4S8%20series\"\u003eRequest installation or engineering support\u003c\/a\u003e.\u003c\/p\u003e","brand":"CPI","offers":[{"title":"Default Title","offer_id":67963282620783,"sku":"CPI-K4S8","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/0528\/1135\/files\/cpi-20-k4s-mkt123-1600x1356.jpg?v=1793925975","url":"https:\/\/digisat.org\/products\/cpi-k4s8","provider":"Digisat International","version":"1.0","type":"link"}