Baron Services XDD-300X Doppler weather radar User Manual 8

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Document ID	75249
Application ID	fvDE7m6rvpRXy4A984FrQg==
Document Description	8
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	51.62kB (645298 bits)
Date Submitted	1999-12-10 00:00:00
Date Available	1998-10-14 00:00:00
Creation Date	2001-05-11 17:36:46
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-05-11 17:36:48
Document Title	8

JAYCOR
HPM OPERATION
OPERATIONAL MANUAL
SOLID STATE
MODULATOR
FOR THE
BARON SYSTEMS
RADAR
WARNING
INTERNAL VOLTAGES MAY CAUSE SEVERE SHOCK
OR DEATH; USE CAUTION AND AVOID CONTACT
WITH ENERGIZED COMPONENTS.
2186 EASTMAN AVE - SUITE 107, VENTURA, CALIFORNIA -93003
PHONE: 805 6508074 FAX: 805 6509275
44
4-2
4-3
TABLE OF CONTENTS
SECTION 1
GENERALD RIPTI N
Paragraph Title Page
No‘ No.
1-1 Introduction ............... 1-1
1-2 General Description 1-1
1-3 Requirements ......... 1-1
Front Panel Drawing 1-6
Transmitter Outline Drawing 1-7
SECTION 2
INSTALLATION INSTRUCTIONS
2-1 Introduction ....................... . 2-1
2-2 Unpacking and Inspection. ....... 2-1
2-3 Installation ..................... 2-1
2-4 Performance Check Out ———-———--—-——- 2-2
SECTION 3
PRINCIPALS OF OPERATI N
3-1 Introduction ........................... 3-1
3-2 System Function Description ..... 3-1
3-3 System Operation .................. 3-1
3-4 28 VDC and Bias Supply (A2) . 3-2
3-5 Filament Power Supply Assembly (A3) 3-2
3-6 Card Cage (A4) .. 3-3
3-7 Master Regulator 0 CA (MAS) 3-3
3-8 Control Conditioner CCA (AAAA) —-—- 3-3
3-9 Interface and Control CCA (A4A5) 3-3
3-10 Low Voltage Power Supply CCA (A4A2) ———- 3—4
3-11 Low Voltage Monitor (A4A1) —— 3—4
342 DC to DC Converter (A5) — 3-5
3-1 3 Modulator Assemblies (A6) —— 3-5
3-14 Oil Can Assembly (A6A2) -———~———- 3-5
3-15 Reset Assembly (A7) 3-5
3-16 Over Temperature Protection ——-—-——- 3-5
3-17 Magnetron Assembly (V1) -———— 3—6
SECTION 4
OPERATING INSTRUCTIONS
Introduction ....... 4-1
Controls I Indicators .. . 4-1
Operating Procedures ........ 4-4
5-1
52
5-3
5-4
5-5
MAINTENANCE
lntroducfion ...........................
Periodic Maintenance .....
Inspection and Cleaning.
SECTION 5
Power and Pulse Vlfidth Output Check:
Maintenance Procedure For Removal -
Of Modules For Replacement And IOr
Trouble Shooting
5-1
5-2
5-2
5-2
SECTION]
GENERAL DESCRIPTION
1-1. INTRODUCTION
This manual contains information and procedures for operation of the Solid State Modulator
for use in the Baron Transmitter using the Varian SFD-349 Magnetron.
The manual is organized into three sections as follows:
Section 1. introduction and General Description
Section 2. Preparation For Use
Section 3. Principles of Operation
Section 4. Operating Instnictions
Seetion 5. Maintenance
1-2. GENERAL DESCRIPTION
A Solid State Modulator, figure 1-1, The Solid State Modulator in essence is a Hard Tube
Modulator which uses low voltage IGBT switches and pulse transformers to drive SFD-349
Magnetron at the proper operating voltage of 25 W. The SFD-349 coaxial magnetron will
generate high-power microwave RF pulse energy in the frequency range of 8.5 to 9.6
GHZ with a peak power output of a minimum of 250 kilowatt. It is driven by a JAYCOR
Solid State Modulator which will drive the magnetron with proper pulse widths and at a
repetition frequency as directed by the external pulse groups. The duty cycle for the
transmitter is limited 0.0011 as dictated by the magnetron specification. Protective
circuitry will protect the magnetron by not allowing R.F. pulses to be generated at a
combination of pulse width and rep rate not to exceed the 0011 duty. The magnetrons
output frequency is adjusted manually.
Primary power is 220VAC. 60 Hz. 1 phase and is connected to the Transmitter through
connector TBS . The remote control signals from the host system is on connector J 2 and
J3. J4 , BNC, is a pulse representing the magnetron peak current . Cooling for the emitter is
provided by internal fans. The fans circulates cooling air over plenums and heatsinks.
1.3 REQUIREMENT§
TRAN§MITTER SPECiFICATIQN:
Magnetron: SFD~349 or equivalent—8.5 to 9.6 GHZ
Magnetron Input: 25 kV. 26 amps (Nominal)
Peak RF Power: 250kw
Pulse Widths
Rise Time:
Fall Time:
(measured at -3 dB power points):
a. 0.5
b. 1.00
c. 2.00
equal to or less than 100 NSEC
(measured between the 10 and 90% power points):
Less than 200 NSEC
(measured between the 90 and 10% ower points):
Outgut Reguirements:
Stability:
Spectrum
0, 1 dB, Pulse to Pulse
Side lobes greater than 12 dB down
NOTE: - The modulator will be capable of delivering the correct pulse
stability and power to permit the necessary RF source
performance. Maximum duty cycle will be limited by modulator
circuitry.
Output Pulse Variation: Less than 1% at any combination PRF, Pulse Width
Jitter:
Delay Stability:
Duty Cycle:
Modulator Output:
and Pulse Code
Less than 3 NSEC, RMS (Referenced to Input Trigger)
Less than 1 usec alter warm-up (One-half hour)
MAGNETRON l§ 0011
NOTE: The modulators will employ magnetron "over
duty" protection. JAYCQR will drop guises when the
guy gcle Is exgeedeg, thus maintaining the maximum
dug gycle. A fault light will alert the operator of the over
duty.
Output to the magnetron will approximate 250 kilowatts,
Output Pulse Amplitude (Negative Pulse) shall be adjustable
to a preset value between 22 to 26KV. A softstait build up of
the operating voltage to the magnetron is preset and this
shall occur during the first ten seconds after transmitter HV
tum-on. Typical operating conditions require a pulse of 25
12
KV at 26 amperes. .
Filaments: Standby: 13.75 volts, 3.63mps:
Operate: Down to ‘0' volts at full duty
Input Trigger: 10 to 15 volts level signal with a pulse width of ,5 usec to 2
usec via BNC connector. 50 ohm load
Output Connections: The Magnetron shall be connected directly to the Pulse
Transformer using the 6 inch long leads provided with the
magnetron. .
HVPS Regulation: The output voltage regulation over the Modulator duty cycle
range to .0011 shall be better than 1.0 percent. Output ripple
shall be less then 0.1 percent. and recovery from a 50
percent transient spike on the load shall not be greater than
3 milliseconds.
OTHER CONSIDERATIONS:
Altitude:
Operating To 10,000 Feet
Ambient temperature: - 40C to +55 degrees C
Humidity... 95 %, non—condensing
Cooling. lntemal, forced air
Dimensions:
Height. 19.25 : inches
Vlfidth ...... 16.00...... inches
Depth ....... 27.25 ....... inches
Transmitter Weight: ......... 50 pounds with Magnetron
1-3
TABLE 151
CONTROL INPUT/OUTPUT LINES/CONNECTOR TYPE
INPUT CONNECTOR FOR SINGLE PHASE ZDSVAC - MSS112E16-8P (J1)
PIN A - PHASE A
PIN H - NEUTRAL
PIN G - GROUND
CONNECTOR UGZB1B (BNC) (J3) - COMMAND PULSE
0-10V LOGIC PULSE INPUT FOR MODULATION
CONNECTOR UGZQ‘IB (BNC) (J4) - MAGNETRON CURRENT
VOLTAGE PULSE REPRESENTING MAGNETRON PEAK CURRENT
INTERFACE CONNECTOR M24308/3-2F (J2)
PIN 1 - RESET COMMAND
ACTIVE HIGH, 10-28V INPUT, OPTO-ISOLATED
PIN 2 - SUMMARY FAULT
ACTNE HIGH, 10-15V TOTEMPOLE OUTPUT (VCC), OPTO-ISOLATED
PIN 3 - BUSS VCC
10-15VDC TO POWER THE OPTO-COUPLERS
PIN 4 - FILAMENT VOLTMETER ( 15Volts, Full Scale)
O-1MA CURRENT OUTPUT FOR METER MOVEMENT. INDICATING FILAMENT
VOLTAGE
PIN 5 - HV POWER SUPPLY CURRENT METER ( 11) Amps, Full Scale )
0-1MA CURRENT OUTPUT FOR METER MOVEMENT, INDICATING MODULATOR
CURRENT
PIN 6 - HV POWER SUPPLY VOLTAGE METER ( 2000 VOLTS, Full Scale )
0—1MA CURRENT OUTPUT FOR METER MOVEMENT, INDICATING OUTPUT
VOLTAGE
PIN 7 - MAGNETRON CURRENT METER ( 50 me , Full Sale )
0-1MA CURRENT OUTPUT FOR METER MOVEMENT, INDICATING AVERAGE
MAGNETRON CURRENT
PIN 8 - GROUND
RETURN FOR METER CIRCUITS. TRANSMITTER GROUND
PIN 9 - HV ONIRADIATE COMMAND
1-4
ACTIVE HIGH, 10-28V INPUT, OPTO-ISOLATED
FIN 10 - FILAMENT READY
ACTIVE HIGH, 10-15V TOTEMPOLE OUTPUT (VCC), OPTO—ISOLATED.
INDICATING FILAMENT WARM-UP DELAY IS COMPLETED
PIN 11 - MAGNETRON AIR FLOW
SWITCH CONTACT TO GROUND INDICATING MAGNETRON COOLING AIR FLOW
PIN 12 ‘ NIC
PIN 13 - BUS RETURN/BUS COMMON
RETURN VOR VCC IN‘ COMMON FOR COMMANDS
PIN 14 - AC ON
ACTIVE HIGH, 10-28V INPUT, OPTO-ISOLATED
FIN 15 - NIC
NOTE: THE COMMAND AND STATUS SIGNALS ARE ISOLATED FROM THE
TRANSMITTER GROUND BY OPTO-COUPLERS. THE STATUS SIGNAL
(SUMMARY FAULT AND FILAMENT READY) OPTO-COUPLERS ARE POWERED BY
THE EXTERNAL BUSS VCC VOLTAGE. WHICH SHOULD BE +10‘15VDC (20V MAX).
THE POWER RETURN IS BUS RETURN/BUS COMMON, WHICH IS ISOLATED
FROM THE TRANSMITTER GROUND.
The Front Panel has the following meters:
FILAMENT VOLTMETER — 15 volts Full Sale
HV POWER SUPPLY CURRENT METER - 1.0 Amps Full Scale
HV POWER SUPPLY VOLTAGE METER — 2000 volts Full ScaIe
MAGNETRON CURRENT METER — 50 me Full Scale
AC INPUT VOLTS - 220VAC - SYSTEM POWER
AC INPUT VOLTS - 220VAC — TRANSMITTER POWER
00
066
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File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : Yes
Create Date                     : 2001:05:11 17:36:46
Producer                        : Acrobat Distiller 4.0 for Windows
Modify Date                     : 2001:05:11 17:36:48-04:00
Page Count                      : 27