MTI 3948B Pulse TWT 8.8 GHz – 10.5 GHz RF Performance • • • • • • 5% Maximum Duty 7400 W Minimum Power 8.8 to 10.5 GHz -54° to 85° C 1179 W Typ. Prime Power @5% 48-51 dB Typical Gain • 15.45” L x 2.77” W x 3.25” H (39.2 x 7 x 8.27 cm) • ±15° Phase Match Typical Operating Conditions Element Voltage Heater Helix with RF without RF Grid On Grid Off Cathode (Ek) Collector w/RF Coll. #1 Coll. #2 Current Power Supply Requirements Voltage Min. Voltage Max. Current Max. -6.3 Vdc 2.2 A -6.1 Vdc -6.5 Vdc 2.5 A Ground Ground 250 Vpk -300 Vdc -14.2 kV 400 mApk 75 mApk 0 0 2.3 Apk Ground Ground 100 Vpk -300 Vdc -14 kV Ground Ground 300 Vpk -500 Vdc -15 kV 500 mApk @ 5% 460 mApk @ 5% 30 mApk 0.5 mA 2.5 Apk 11.7 kV 8.5 kV 0.4 Apk 1.5 Apk 80% x Ek ±2% 58% x Ek ±2% 1 Apk 2.5 Apk Freq (GHz) Typ. Sat. Power Output (W) Min. Spec. Power Output (W) Typ. Gain @ Spec. Power (dB) 8.8 8.9 9.0 9.2 9.4 9.6 9.8 10.0 10.1 10.2 10.3 10.4 10.5 7400 7800 8300 8350 8400 8500 8600 8700 8700 8700 8300 8200 8200 6800 7400 8000 8000 8000 8000 8000 8000 8000 8000 7800 7500 7500 48 49 50 50 50 50 51 51 51 51 50 50 49 Typical power output is shown to illustrate capability. Typical gain shown is without equalizer. Performance Typical Spec Input VSWR .......................................1.5:1 .................... 2.0:1 Output VSWR ....................................1.5:1 .................... 1.8:1 Max. Duty ............................................ — .......................... 5% Max. Pulsewidth .................................. — ...................... 50 µs Min. Harmonic Separation .............. -12 dBc .............. -10 dBc Noise Power Density (dBm/MHz) ...................................... -14 ......................... -10 Prime Power ................................... 1179 W .............. 1300 W Cathode voltage is measured with respect to ground. Heater, Collector, and Grid voltages are measured with respect to Cathode. This model number is controlled by the International Traffic in Arms Regulations, and can only be exported via a U.S. Department of State export license. They may not be transferred, transshipped on a non-continuous voyage, or otherwise be disposed of in any other country, either in their original form or after being incorporated into other end-items, without the prior written approval of the U.S. Department of State. Specifications are subject to change without notice. Teledyne TWT Products • 11361 Sunrise Park Drive • Rancho Cordova, CA 95742 • 916.638.3344 • www.teledynemicrowave.com This model number is controlled by the International Traffic in Arms Regulations, and can only be exported via a U.S. Department of State export license. They may not be transferred, transshipped on a non-continuous voyage, or otherwise be disposed of in any other country, either in their original form or after being incorporated into other end-items, without the prior written approval of the U.S. Department of State. Teledyne TWT Products • 11361 Sunrise Park Drive • Rancho Cordova, CA 95742 • 916.638.3344 • www.teledynemicrowave.com 8.8 GHz – 10.5 GHz Pulse TWT ● MTI 3948B