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CPI VZU-6994 Скачать руководство пользователя страница 3

811 Hansen Way

Palo Alto, CA 94303 USA

Tel: +1 (650) 846-3803

Fax: +1 (650) 424-1744

Communications & Power Industries

Technical Description

Ku-Band Rack-Mount

Medium Power Amplifier

Model VZU-6994

INTRODUCTION

This document provides a detailed technical description of the Communications & Power
Industries (CPI) VZU-6994 Series MPA, a Ku-band traveling wave tube amplifier
providing up to 400 watts of power and designed specifically for uplink service in
satellite terminals, ‘fly-aways’ and satellite news gathering (SNG) vehicles. This compact
medium power amplifier (CMPA) is 5.25” high, is lightweight and employs a dual
depressed collector helix, permitting continuous, efficient operation across the Ku-band
frequency range. The CMPA also incorporates the use of a microprocessor control
system, thereby simplifying interfacing with remote control and monitor facilities
speeding the integration process. Features include PIN diode attenuation and power factor
correction (0.95 min.) allowing the unit to meet the total harmonic distortion requirement
of EN61000-3-2 and providing for universal voltage input 100-240 VAC. It is also
designed to meet EN60215 safety and 2004/108/EC electromagnetic compatibility
requirements.

The VZU-6994 CMPA is a member of a comprehensive line of communication
amplifiers comprising TWT Amplifiers (TWTAs), High Power Klystron Amplifiers
(KPAs), and Solid State Power Amplifiers (SSPAs). All are designed specifically for
service in satellite earth stations operating in standard frequency bands.

CPI (formerly Varian Electron Device Group) has been active in the design and
manufacture of microwave power amplifiers and related products for more than 30 years.
CPI Satcom Division (formerly Varian MEP) was organized in the mid-1970s to bring
together, under a single business center, the strengths of existing groups involved with
Satcom and Industrial power amplifiers.

Since then, CPI Satcom Division has provided thousands of fully integrated satellite
uplink power amplifiers in the S, C, X, Ku, DBS and Ka- band frequency ranges to
worldwide users and has become the leading supplier of this class of products.

Ku-Band CMPA 04/08

TD-67 Page 1

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Содержание VZU-6994

Страница 1: ...l Safety Standard EN 60215 Electromagnetic Compatibility 89 336 EEC and Harmonic Standard EN 61000 3 2 to satisfy worldwide requirements Easy to Maintain Modular design and built in fault diagnostic c...

Страница 2: ...rier output 22 dBc max at 7 dB OBO 4 dB w lin for 14 7 15 2 GHz config Group Delay 0 01 ns MHz linear max in any 80 MHz band 0 001 ns MHz2 parabolic max 0 5 ns pk pk ripple max Environmental Operating...

Страница 3: ...g the unit to meet the total harmonic distortion requirement of EN61000 3 2 and providing for universal voltage input 100 240 VAC It is also designed to meet EN60215 safety and 2004 108 EC electromagn...

Страница 4: ...e set during installation up down buttons that permit setting high and low alarm trip points such as Low RF and a set of detail fault LEDs to help troubleshoot during operation Principal functions are...

Страница 5: ...PPM focused helix design It is designed especially for compact lightweight applications involving satellite uplink service The output waveguide assembly interfaces to the TWT and protects the tube fr...

Страница 6: ...ly the AC input power is required for operation The travelling wave tube derives its operation from four DC power supplies a filament heater low voltage supply a helix high voltage supply and two coll...

Страница 7: ...current sense resistors for critical TWT voltages The incoming 200 volt 21 kHz signal is applied to the primary of a multi section high voltage transformer which provides all of the high voltage level...

Страница 8: ...e longest HTD is three minutes If a fault occurs during TRANSMIT the FAULT LED will light and the unit will switch from TRANSMIT to FAULT Two scenarios are possible The first scenario occurs when a fa...

Страница 9: ...by 5 25 high and 24 deep plus connectors fan and air duct adapters The unit is cooled via a forced air cooling system consisting of two axial fans an air filter and an exhaust duct Allowances are mad...

Страница 10: ...VZU 6994 AB 1750 MHz VZU 6994 AP 500 MHz Gain at rated power 73 dB min 88 dB max small signal 78 dB min 90 dB max RF Level Adjust Range 0 to 20 dB Output Power Setability 0 2 dB Gain Stability at cons...

Страница 11: ...Harmonic Output 60 dBc at rated power second and third harmonics Noise and Spurious at rated gain VZU 6994 AC AD AP 150 dBW 4 kHz 10 9 to 12 7 GHz VZU 6994 AB 130 dBW 4 kHz 10 9 to 11 7 GHz VZU 6994...

Страница 12: ...derating of 2 C 1 000 ft non operating 40 000 ft Shock and Vibration Designed for normal transportation environ ment per Section 514 4 MIL STD 810E De signed to withstand 20G at 11 ms 1 2 sine pulse...

Страница 13: ...RF Output Power Attenuator Setting RF Output Sample Port 40 dBm nominal Type N RF Reflected Power W Helix Current mA Helix Voltage kV Control Status Display Power On Heater Time Delay HTD TX Transmit...

Страница 14: ...ES Options Compatibility Integral linearizer External receive band reject filter increases loss by a minimum of 75 dB up to 12 75 GHz for standard band and by a minimum of 50 dB up to 11 7 GHz for ext...

Страница 15: ...tion local or remote as selected by the operator For servicing the logic assembly can be removed from the front panel without disturbing the RF connections Options are available for the addition of an...

Страница 16: ...e with the Switching System and Phase Combiner SUPPORT SERVICES Documentation CPI Satcom Division provides a standard commercial documentation package for all products The standard package for satelli...

Страница 17: ...f CPI includes a staff of experienced professional service technicians to assist users in maintaining full performance from their CPI power amplifiers A telephone hot line permits access to one of the...

Страница 18: ...gure 1 CMPA Outline Drawing ref 01018602 rev A dtd 02 06 Note Before using this drawing for system design please check with CPI to ensure that it is the latest revision Ku Band CMPA 04 08 TD 67 Page 1...

Страница 19: ...OLATOR TWT I NT EGRATED RF OUTPUT ASSEMBLY RFOUTPUT WR 75 G ROO VED 40 DB 59 DB 50 DB RFOUTPUT SAMPLE PORT TYPE N FEMALE RF OUTPUT POWER RF REFLECTED POWER Contains integral PIN Diode Attenuator Figur...

Страница 20: ...rol Switching I F Serial Remote Control For use with CPI Remote Panel Computer I F User Interlocks Control Display Micro controller RF Metering Faults Control DC Power Monitor Control HV Module Helix...

Страница 21: ...Ku Band CMPA 04 08 TD 67 Page 19 Figure 4 CMPA Front Panel Ku Band CMPA 04 08 TD 67 Page 19...

Страница 22: ...MFG REL CL A A02717 5 16 03 CLS GE B INC E C O A03689 2 13 06 ON FJ C INC E C O A03862 6 12 06 ON FJ D INC E C O A04491 3 3 08 FJ FAMILY CONFIGURATION AND OPTIONS 400w COMPACT MPA Ku BAND CMPA MODEL...

Страница 23: ...Code Option Description Option Part Number 1 Prime Power 0 Single Phase 110 240 VAC Standard None 2 Front Panel Assembly 0 Standard 01018626 00 S Special Front Panel Assembly 01019455 XX 3 Attenuator...

Страница 24: ...h or written permission from the Corporation Space Code Option Description Option Part Number 8 9 01 Short Exhaust Duct See accessories 01020747 00 02 Receive Filter External See accessories 01020654...

Страница 25: ......

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