Ku-Band GEN IV Klystron High Power Amplifier Highly Efficient Provides up to 2.45 kW of output power. Multi-stage depressed collector klystron allows the amplifier to use less power and produce less heat than other K-HPAs. Employs a power saver feature to optimize K-HPA efficiency to meet your operating condition. Technologically Up to Date Scopescreen provides a graphical log display. Ethernet option provides higher speed connections, can update and coordinate all clock settings, and enables a snapshot feature where user can create a file containing all settings, alarms and faults at a single point in time. Small Size Greater efficiency and exceptional thermal margins have enabled CPI to design the smallest KPA on the market --without the threat of overheating or a shorter klystron life. Greater Reliability Low temperatures are the key to longer lifetimes for klystrons and electronic parts. The CPI power supply design and high efficiency, multi-stage depressed collector klystron make these lower temperatures possible. K-HPA MTBF is nearly 90,000 hours. Model K4U Klystron Power Amplifier for satellite uplink applications OPTIONS •Motorized channel selector (<1 second) •Remote control panel •Integral linearizer •Redundant and combined systems •External receive band reject filter •L-band block upconverter (BUC) --specifications for when BUC is included are not contained in this document. Contact CPI for details. •Ethernet interface Useful Displays Large, high quality, color, graphical display has a wide viewing angle and a sharp appearance. All important functions are clearly displayed, and an event log is included. Easy Maintenance, Easy Handling All areas of the amplifier are easily accessible and there are no large harnesses to get in the way. Separate RF and Power Supply drawers slide out from a standard rack. Worldwide Support Backed by over 35 years of satellite communications experience, and CPI’s worldwide 24-hour customer support network that includes more than 20 regional factory service centers. 811 Hansen Way, PO Box 51625 Palo Alto, CA 94303 USA tel: +1 (650) 846-3803 fax: +1 (650) 424-1744 e-mail:[email protected] website:www.cpii.com/satcom Ku-Band Specifications Ku-band GEN IV Klystron High Power Amplifier Specification Output Frequency Output Power with Harmonic Filter1 Klystron CW Power Flange CW Power (min.) Instantaneous Bandwidth Model K4U 13.75 to 14.50 GHz 12.75 to 13.25 GHz 14.0 to 14.8 GHz 2.45 kW (63.89 dBm) min. 2.00 kW (63.01 dBm) min. 2.45 kW (63.89 dBm) min. 2.00 kW (63.01 dBm) min. 2.45 kW (63.89 dBm) min. 1.95 kW (62.91 dBm) min. 80 MHz 85 MHz 85 MHz Gain at rated power Gain Stability vs. Time Gain Stability vs. Temperature 77 dB min. ±0.25 dB/24 hr. max. at constant drive and temperature 1 dB max. from 20° to 40°C; ±2.5 dB max. from 0° to 50°C (at constant drive) Gain Slope at Rate Power 0.04 dB/MHz max. over Fo ±30 MHz Gain Variation at Rated Power 0.4 dB pk-pk max. over Fo ±30 MHz Input/Output VSWR Load VSWR Residual AM2 1.25:1 max. input; 1.30:1 max. output 2.0:1 max. for full spec. compliance; any value for operation without damage -50 dBc max, 20 to 400 Hz; -60 dBc max, 400 Hz to 2 kHz; -80 dBc max, 2 kHz to 500 kHz AM/PM Conversion 4°/dB max. at rated power Harmonic Output Noise and Spurious Intermodulation -80 dBc with filter; -35 dBc without filter -135 dBc/4 kHz, 11.70 to 12.75 GHz; -65 dBc/4 kHz, passband -60 dBc/4 kHz, passband with linearizer; -110 dBc/MHz, 12.75 to 40 GHz, excluding passband -135 dBc/4 kHz, 10.70 to 11.70 GHz; -65 dBc/4 kHz, passband -60 dBc/4 kHz, passband with linearizer; -110 dBc/MHz, 11.75 to 40 GHz, excluding passband -135 dBc/4 kHz, 11.70 to 12.75 GHz; -65 dBc/4 kHz, passband -60 dBc/4 kHz, passband with linearizer; -110 dBc/MHz, 12.75 to 40 GHz, excluding passband -28 dBc with regard to each of two equal carriers at 7 dB backoff from rated output power Phase Noise Exceeds requirements of IESS-308/309 by -10 dB at 10 dB backoff Group Delay In any 72 MHz band: 0.10 ns/MHz linear max; 0.02 ns/MHz2 parabolic max; 2.0 ns pk-pk ripple max. Primary Power3 Power Consumption4 All ratings are ±10%; Frequency: 47-63 Hz, 5 wire, 3 phase with ground; 208 VAC (with or without neutral); 380 to 415 VAC 8.0 kW max; typical values for the following RF output backoffs with respect to rated (power saver OFF): 7.7 kW at 0 dB (rated); 5.6 kW at -4 dB; 4.9 kW at -7 dB; -4.6 kW at -10 dB; -4.5 kW at -13 dB Power Factor Inrush Current, peak Ambient Temperature 0.9 min. 180% of normal line current peak max. (first half-cycle only) -10˚C to +50˚C operating, -40˚C to +80˚C non-operating Relative Humidity Altitude Shock and Vibration Cooling 95% non-condensing 10,000 ft. with standard adiabatic derating of 2˚C/1000 ft. operating; 40,000 ft. non-operating As normall encountered in satellite earth stations and shipping Forced air with integral blower and fans; separate klystron collector cooling path Air Flow Rate, Klystron 175 cfm min. at sea level External Ducts Back Pressure 0.5 inch water gauge total, max. Klystron Heat Loss 4400 W max. Heat Loss in Room Acoustic Noise Connections M&C Interface Dimensions, W x H x D Weight Cabinet less klystron: 1700 W max. 63 dBA nom, measured 3 ft from front of equipment RF Input: Type N Female; RF output: WR-75 waveguide flange, grooved; RF output monitors: Type N Female RS422/485, RS232 serial interface; Ethernet optional RF Drawer: 19 x 17.5 x 28 inches (483 x 445 x 711 mm); Power Supply: 19 x 8.75 x 24 in. (483 x 223 x 610 mm) RF Drawer: 220 lbs with klystron (100 kg) nom; Power Supply: 100 lbs (45.4 kg) Notes: 1. Harmonic filter can be removed as an option. Add 0.25 dB to amplifier output for units ordered without harmonic filter. Output VSWR without filter is 1.25:1 max. 2. Prime power AC line unbalance not to exceed 3%. Excess imbalance may cause an increase in residual RF noise (AM, FM and PM). Phase noise increase is typically 2.5 dB / % imbalance. 3. AC current harmonic content: less than 20%, primarily fifth and seventh harmonics. Harmonics must be considered when choosing UPS sources. 4. Lower power consumption can be achieved if power saver (included as standard) is employed when operating below rated output power. Quality Management System - ISO 9001:2008 For more detailed information, please refer to the corresponding CPI technical description if one has been published, or contact CPI. Specifications may change without notice as a result of additional data or product refinement. Please contact CPI before using this information for system design. MKT 112, ISSUE 11 dated FEB 2015