Introduction to Signal Paths WSR88D Students will have ... · 20.10.2020 · 3w105. cp14. w60 see...
Transcript of Introduction to Signal Paths WSR88D Students will have ... · 20.10.2020 · 3w105. cp14. w60 see...
Introduction to Signal Paths WSR88D
Objective: Students will have basic understanding of RF,IF, and Test Paths used by the WSR88D RADAR between the Frequency Generator and the Intermediate Frequency Digital Receiver (IFDR). Expectations: In this online environment please keep microphones muted. Instructors will ask if there are any questions during the presentation.
NW
S EHB 6-513
2-18
Figure 2-5. NW
S Single Channel Equipm
ent Shelter Configuration
NW
S EHB 6-513
2-19
Figure 2-6. DoD
RD
A Equipm
ent Shelter Configuration
NW
S EHB 6-513
2-20
Figure 2-7. FAA
Equipment Shelter C
onfiguration (Sheet 1 of 2)
NW
S EHB 6-513
2-21
Figure 2-7. FAA
Equipment Shelter C
onfiguration (Sheet 2 of 2)
NW
S EHB 6-513
2-2
Figure 2-1. Radar D
ata Acquisition G
roup
NWS EHB 6-500
FP-1-5/(FP-1-6 blank)
Figure FO1-3. System Program andOperating Station Interrelationships,
Pictorial Flow Diagram
2-3
2-3
UD4 RECEIVER
UD90A11 RSP
UD90/190A1
SPIP
UD90A10 KVM
UD4A40 RDAIU
UD3 XMTR
AME
UD2A9
RFAMPLIFIER
MODULATOR
CONTROLAND
MONITOR
COOLING
DRIVE MOTORS
AZ – EL ENCODERS
RF PALLET
UD2A5
DIGITAL
RECEIVER
IF – DIGITAL
CONVERSION
7 TRIGGERS & GATES
FAULTSSTATUS
STATUS FAULTS
TRIGGERS CONTROL
TX PWR MON OUTPUT
UD2 PEDESTAL
NWS TRAINING CENTER
SIMPLIFIED BLOCK DIAGRAM
STALO = SITE FREQUENCY - COHO
SITE FREQUENCY = STALO + COHO
CONTROL
WIDEBAND
BASE DATA
GENERATION
ETHERNETINTERFACE
ETHERNET
INTERFACE
STATUS AND
CONTROL
UD90A4
ROUTER
UD90A5LAN SWITCH
HV
H + V RF H + V IF
RF to IFCONVERSION
FOR TRAINING USE ONLY
TO RPG FROM RPG
CONTROLBASE DATA (R,V,W,D)
STATUS & FAULTS
- Modulator Charge
- Trigger Charge
- Mid-PRT
- Post Charge
- RF Drive
- Modulator Discharge
- RF Pulse Start (T0)
SimplifiedBlock_20180417.vsd
STALO
1
2
3
UD4A1RF
GENERATOR
BurstMixer
RCV VIDEO
AME COMMS
POSITION DATA
INTERLOCKS SENSORS
7 TRIGGERS & GATES
RF GATE &CONTROL
STATUS
STATUS & CONTROL
1
RS232 – RS422CONVERSION
STALO
STALO
MOMENT DATA
TIMING
COHO
IF BURST
STATUS
ANTENNA DRIVE
BANDPASS T/R
BANDPASS T/R
LNA
LNA
AME = ANTENNA MOUNTED ELECTRONICS
ANT = ANTENNA PEDESTAL
IFDR = INTERMEDIATE FREQUENCY DIGITAL
RECEIVER
KVM = KEYBOARD, VIDEO, MONITOR
RSP = RADAR SIGNAL PROCESSOR
RCVR = RECEIVER
SPIP = SIGNAL PROCESSOR INTERFACE PANNEL
XMTR = TRANSMITTER
CLUTTERSUPRESSION
UD90A14POWER
AMPLFIER
I&Q DATA H + V IF
4 PORT AZ ROTARY COUPLER
EL ROTARYCOUPLER
HV PULSE
FAULTS
TRIGGERS
HV ON & ANT CMD
TDS 0-2
TX STATUS DATA WORD
HVOFF, RECYCLE & INOP
TIMING CONTROL &
SYNCHRONIZER
ETHERNET INTERFACE
RF GATE
CONTROL
INTERLOCK LOGIC
(PED / XMTR)
PEDESTAL CONTROL
CMD & STATUS
INTERFACE
REDUNDANT CHANNEL
SWITCHING *
OMT
HYBRID
1DC1 1AT4RF BURST
RF DRIVE
(8.32uS, 10mW Pk @ Site Feq.)
BITECal
* Redundant sites only: Includes
RDAIU Switching and WGS 1S1
DISCRETE STATUS DATAUD 4, 10, AND 7
ANALOG STATUS DATAUD1, 2, 4, 7, 10, AND 90
SW TO UTIL/GENGEN START CMD UD10
POWERDIST
FAULTS
2-5
UD90ProcessorCabinet
UD190 Processor Cabinet
AME = ANTENNA MOUNTED ELECTRONICSIFDR = INTERMEDIATE FREQUENCY DIGITAL RECEIVERRSP = RADAR SIGNAL PROCESSORXMTR = TRANSMITTER
UD103
XMTR
AME
UD2A9
RFAMPLIFIER
MODULATOR
DRIVE MOTORS
AZ – EL ENCODERS
RF PALLETUD2A5
DIGITALRECEIVER
IF – DIGITALCONVERSION
UD2 PEDESTAL
OMT
STALO = SITE FREQUENCY - COHOSITE FREQUENCY = STALO + COHO
UD90A4 ROUTER
H V
H + V RF
H + V IF
RF to IF
CONVERSION
FOR TRAINING USE ONLY
NWS Training CenterFAA Redundant Simplified Diagram
FAA_RedundantSimplified_v20180418.vsd
STALO
1
2
3
UD104A1RF GENERATOR
BurstMixer
RCV VIDEO
AME COMMS
INTERLOCKS SENSORS
RF DRIVE
STALO
STALO
TIMING
COHO
IF BURST
CH 1 BAND PASS
T/R
T/R
LNA
LNA
700 KW, 1.5/4.5 uS
H + V IF
4 PORT AZ ROTARY COUPLER
EL ROTARYCOUPLER
HV PULSE
TIMING CONTROL &
SYNCHRONIZER
DIGITALRECEIVER
IF – DIGITALCONVERSION
STALO = SITE FREQUENCY - COHOSITE FREQUENCY = STALO + COHO
UD4A1RF GENERATOR
BurstMixer
RCV VIDEO
STALO
TIMING
COHO
IF BURST
CLOCK
TIMING CONTROL &
SYNCHRONIZER
UD3 XMTR
RFAMPLIFIER
MODULATOR
HV PULSE
RF DRIVE(8.32uS, 10mW Pk @ Site Freq.)
UD90A5LAN SWITCH
UD90A11 RSP
UD90A5LAN SWITCH
UD90A11 RSP
CH 2 BAND PASS
WaveGuide
Switch
CH 1 BAND PASS
CH 2 BAND PASS
WaveGuide
Switch
WaveGuide
Switch
WaveGuide
Switch
Test / Cal
WaveGuide
Switch
Dummy
Load
WaveGuide
Switch
WaveGuide
Switch
Dummy
Load
LongShort
LongShort
H + V IF
UD4A40 RDAIU
To WFO
UD70A4RPG Router
UD90A4 ROUTER
UD70A11LAN SWITCH
UD70A4&5RPG (A&B)
UD170A4RPG RouterUD170A11
LAN SWITCHUD170A4&5RPG (A&B)
UD31 Relay Box
Balancing motor
Horizontal IF
Vertical IF
AME Comms
STALO
CH1 IFDR
CH2 IFDR
CH1 IFDR
CH2 IFDR
CH1 RSP
CH2 RSP
CH1 4A1
CH2 4A1
Mechanical movements w/CH change
Phase/Power Balancing unit/motor(tune balance of output H/V for 50/50)
Bandpass input/output filters(change frequency of input filters)
Ch1/Ch2 TX waveguide switch(change source of RF transmitter)
Standby/Operate waveguide switches(switch in dummy load for calibration
and antenna for operation)
RF switches in RDAIU(change STALO source up to pedestal)
IF switches in RDAIU(IF from pedestal to destination receiver)
Toggle AME Control(select which RSP controls AME)
Comms Relay box relays(select RPG to feed WFO)
UD104 RECEIVER
UD4 RECEIVER
UD104A38 IFDR
UD4A38 IFDR
2-107
IGCT
HV SwitchStack Monitor
Charging
Transformer
Charging Diode
280V
PS
Capacitor Filter
Bank
Charging
Switch
A16K1
Post Charge
Regulator
Focus Coil
Power Supply
Vacuum
Power Supply+3000 VDC <20µA
Focus CoilCurrent Adj.
Arc / VSWR
Detector
Filament
Power Supply
RF Amp Pulse ShaperVariable
Attenuator
Power
TransformerKlystron
Fo
cu
s C
oil
2
FilimentCurrent Adj.
A1R4
A1 R3
A1 R5
A1A2R74
wide
narrow
A10
A15A14
A9
A2
A4A5
A7A1T4 A7T1 A7T3
AT1
PS1
A7T2
A15A6
A15A9A15A1
A8
A1A2
V1
L1
PS8
A6
PS2
A1R2
A1R1
6 Pre-Conditions for Transmitter Available
no faults
no reset
preheat complete
WG SW seated
280v inrush current suppression bypassed
no HV Inhibit
- excesive triggers
- pfn wide/narrow
HVON Command
Trigger Sequence
Mod Charge
Mid PRT
Post Charge
RF Driver (RF Pre Trig)
Mod Discharge
RF Pulse Start
Mod Charge
Mid PRT
Post Charge
RF Driver
(Pre-trigger)
Mod Disharge
RF Pulse Start
Trigger Box
Discharge Trigger(30 +/- 2 us)
RF Pulse Width Select
1:2.7
280VDC
28VDC Enable
8.32µs 10mW
RF pulse from
UD4A1
8.32µs 48Wpk
2Wpk (-1dBmavg) CPI
7.5Wpk (5dBmavg) Litton1.5µs (sp) - 4.5µs (lp)
RF drive
LVPS
4.8 KvCharging
Pulse
1:30
A15A5
WSR 88D Transmitter Functional Block
TRIGGER Triggers from RDASC
xxx
CB2
CB1
CB2
CB1
CB2
UD3A3A3 Test Point
Legend
320
322
315
311
313
326
Integrated
Amp
25 AmpFocusCoil
current
Reflected PowerSample
-
+
FOR TRAINING USE ONLY NWSTC
5 Things (necessary to transmit)
Vacuum Pump Current
Filament Voltage
Mod Pulse
Focus Coil Current
RF Drive
Optical
Discharge
Trigger CCA
A3A1A1-U5 PFN
Color Transmitter Block_20170310.vsd
Pulse
Transformer
1:1
1:30
Filament
Transformer
32.4:1
1:1
15 Wpk
1.5µs (sp) - 4.5µs (lp)
RF
1-31
PROCESSOR
A3
KD
/HT
X J
16
KD
/VT
X J
17
Vert
RF
Re
ceiv
e J
11
V T
est
/ S
en
se J
15
H T
est /
Sen
se J
14
Horiz R
F R
eceiv
e
J9
TX
Sam
ple
J
18
Horiz I
F J
10
Vert
IF
J
12
ST
ALO
J
13
2A9
AME
AME COMMS
RS-422
1
Single Channel WSR-88D Signal Paths
R38 COHO PWR @
4A1J4
R39 STALO PWR @
4A1J2
R258
R257
R50 A20J1_2
R51 A20J1_3
R52 A20J1_4
R251 A20J1_5
TRANSMITTER UD3
PEDESTAL UD2
RDA DATA PROCESSOR UD90
RECEIVER CABINET UD4
AR1
AMP
W93
3W102 3W
10
3
3W
10
4
J13B
FL2
FL1
FL3
AT13
50 dB
AT8
50 Ohms
3
90/190W550
2
J28
W555
Hybrid Splitter
&
Phase Shifter
2A1A3A9
4 CHANNELAZIMUTH
ROTARY JOINT
2A1A5
ELEVATION
ROTARY
JOINT 3
1
2
3
2A5 RF PALLET
2W
57
5
2W
57
4
2W
55
2
2W
55
9
2
W56
0
2
W55
8
2W567
2W568
W550
2
1
3
A1 – ANT GAIN
R261 – ANT NOISE
TEMP
42W569 2W561 2W563
2A1A2
SLIP
RINGS
-50 dB
-30 dB
-30 dB
CP10FL1
LOW PASS
FILTER
R254 RF_4/104W357-OUT
DC1J1
J4
DC2J1
DC3J1
4W583
2W
55
5
2W
57
7
20 dBJ2
J3
V
2W
55
6
2W
57
6
20 dB
RECEIVER MODULE A2
A4
J3
J2
A1
H
Cable
Ad
ap
ter
Pla
te
Cable Adapter Plate
V
H
S
J6
J5
J4
LNA LNA
Ban
dp
ass
Filt
er
Ban
dp
ass
Filt
er
W11
4
RDA INTERFACE UNIT
RCP COM 1 AME COM
Horizontal IF Returns / Test Signals
Vertical IF Returns / Test Signals
STALO
W54
W53
W10
W56
W55
RS-232RS-422
RDA Shelter Wall
RDA Shelter Wall
XM
T S
EN
SE
XM
T S
EN
SE
CW
KD
/ N
OIS
E
KD
/ N
OIS
E
1
2
V
H
A3
A5
R3
3
R3
4
R2
88
19200 baud
STALO
Power / Control / Status
Power / Control / Status
BITE/CAL ASSY A4COHO
CW
H & V test
Switching
And
DelayH & V
Xmit Samples
Xmit Sample
KD or NoiseKD or Noise
Noise
Mixer
T
2
3
4
1
4/104W357
4/104W573
J21
AT550 dB
Adaptation Data
Tx/Rx Signal
Test Signal
Reference Signal
Control Signal
LEGEND
* Site Dependent
J5 J3
J29
4W584W550
W56
J15
4W568
W55
J16
4W567
W10
J2
4W582
W22 4/104W455
J23
R259
AT12
8 dB ATTN
4/104W67
4/104W66
J13A
AT16
0-12 dB
AT17
0-12 dB
4/104W601
90/190W602
90/190W844
CP1
J9
CP7
A38 IFDR
4/104W463
4/104W353
90/190W71
4/104W107
4/104W132
4/104W463
4/104W105
W59 W61
2W564 (LPP) 2W565 (LPP)
NX3841-C
T/R LIM T/R LIM
2W
55
7
CP2
2W
57
2
CP1
2W
57
3
CP3
A40
2A2A2
J3
J2
J1
SPIP
J6
J5
SERIAL
RIGHT
RSPA11
ETH
RIGHT
TOP
ETH
MID
TOP
ETH
MIDBOT
J16
90/190W813 W22
J2
J7
J13E
J7
J5
3W105
CP14
W60
SEE NOTE
NOTE: CABLE CONNECTED TO UD4 BUT NOT USED INTERNALLY.
MATCH FILTER
R41 SHORT
R40 LONG
CP8
TO RPG VIA LAN SWITCH AND ROUTER
A15
5
4/104W129
FPGA
J18
* W/G RUN FROM W/G
SWITCH 1S1 TO AZ
ROTARY JOINT
2A1A3A9
* W/G
A39 BURST MIXER
For Training Use Only 2-41
PROCESSOR
A3
KD
/HT
X J
16
KD
/VT
X J
17
Vert
RF
Re
ceiv
e J
11
V T
est
/ S
en
se J
15
H T
est /
Sen
se J
14
Horiz R
F R
eceiv
e
J9
TX
Sam
ple
J
18
Horiz I
F J
10
Vert
IF
J
12
ST
ALO
J
13
2A9
AME
AME COMMS
RS-422
W/G
Sw
Ctr
l J7
1
Redundant Channel WSR-88D Signal Paths
R38 COHO PWR @
4A1J4
R39 STALO PWR @
4A1J2
R258
R257
TRANSMITTER UD3
PEDESTAL UD2
RDA DATA PROCESSOR UD90
RECEIVER CABINET UD4
AR1
AMP
3W102 3W
10
3
3W
10
4
CP14
AT8
50 Ohms
3
RDA
INTERFACE
UNIT
A40-RED
AME
COM
2
W555
Hybrid Splitter
&
Phase Shifter
2A1A3A9
4 ChannelAzimuth
Rotary Joint
2A1A5
Elevation
Rotary Joint
2A5 RF Pallet
2W
57
5
2W
57
4
2W
55
2
2W
55
9
2W
56
0
2W
55
8
2W567
2W568
2W566
2
1
3
A1 – ANT GAIN
R261 – ANT NOISE
TEMP
42W569 2W561 2W563
2A1A2
SLIP
RINGS
-50 dB
-30 dB
-30 dB
CP10
FL1
LOW PASS
FILTER
R254 RF_4/104W357-OUT
DC1J1
J4
DC2J1
DC3J1
2W
57
8
STALO Ch 1 J3
V IF OUT Ch 1 J11
V IF OUT Ch 2 J12
H IF OUT Ch 1 J13
STALO
OUT
H IF IN V IF INCP13
4W571 (104W591 CH-1)
4W570 (104W590 CH-1)
CP12
CP11
J24
4
J2
2W
55
5
2W
57
7
20 dBJ2
J3
Ban
dp
ass
Filt
er
Ch
2
Ban
dp
ass
Filt
er
Ch
1
V
2W
55
6
2W
57
6
20 dB
Ban
dp
ass
Filt
er
Ch
2
RECEIVER MODULE A2
A4
J3
J2
Ban
dp
ass
Filt
er
Ch
1
A1
H
Cable
Ad
ap
ter
Pla
te
Cable Adapter Plate
V
H
S
J6
J5
J4
LNA LNA
RDA Shelter Wall
RDA Shelter Wall
W54
W53
W154
W56
W55
W156
W10
5
Vertical IF Returns / Test Signals
Horizontal IF Returns / Test Signals
KD
/ N
OIS
E
KD
/ N
OIS
E
XM
T S
EN
SE
XM
T S
EN
SE
CW
1
2
3
1
2
3
V
4W578 (CH-2 only)
H
A3
A5
R3
4
R3
3R2
88
P1
19200 baud
STALO
Power / Control / Status
Power / Control / Status
BITE/CAL ASSY A4COHO
CW
H & V test
Switching
And
DelayH & V
Xmit Samples
Xmit Sample
KD or NoiseKD or Noise
Noise
Mixer
T
1
2
3
4
4/104W67
4/104W66
Adaptation Data
Tx/Rx Signal
Test Signal
LEGENDReference Signal
Control Signal
W15
90/190W844
CP7
90/190W661
J21
90/190W550
90/190W813 W22
4/104W463
W93
CP1
J28
4W564
4/104W463
4/104W601
4/104W573
4/104W353
AT12
8 dB ATTN
4/104W357
W61
W60
W59
4/104W555W22
4W580
J15
W56
W55
J16
4W579
W156
J29
4W566
J2
W10 4W565
J23
J5J4J9 J2
W553
W554
4/104W129
J19 J18
W551
W552
4W
57
2
(10
4W
59
2 C
H-1
)
T/R LIMT/R LIM
2W
57
3
CP3CP1
2W
57
2
2W
55
7
CP2
COM Ch 1 J7
CH SELECT J6
STALO Ch 2 J1
H IF OUT Ch 2 J14
COM Ch 2 J8
NX3842-C
4W594
4W595
4W563
4W593
2A2A2
J3
J2
J1
* W/G RUN FROM W/G
SWITCH 1S1 TO AZ ROTARY
JOINT 2A1A3A9* W/G
SEE NOTE
NOTE: CABLE CONNECTED TO UD4 BUT NOT USED INTERNALLY.
* J2 NOT CONNECTED IN REDUNDANT CHANNEL 1
J13J76
RSP
ETH
RIGHT
TOP
ETH
MID
TOP
ETH
MIDBOT
SPIP
J7
J16
J13B
FL2
FL1
FL3
J13A
AT16
0-12 dB
AT17
0-12 dB
A38 IFDR
J2
J7
J13E
MATCH FILTER
R41 SHORT
R40 LONG
J5
A11
A1
SERIAL
RIGHT
90/190W71
TO RPG VIA LAN
SWITCH AND ROUTER
CP8
5
6 TO J7
J13J12
90/190W65 W101
INTERPANEL LINK
TO CHANNEL 1 SPIP
*
R50 A20J1_2
R51 A20J1_3
R52 A20J1_4
R251 A20J1_5
AT13
50 dB
AT550 dB
4/104W107
4/104W132
4/104W105
FPGA
J18
A39 BURST MIXER
For Training Use Only 2-43
NWS EHB 6-513
2-14
Figure 2-3. Receiver Cabinet UD4 (Sheet 2 of 2)
NWS EHB 6-511
FP-11-103/(FP-11-104 blank)
Figure FO11-13. Transmitter MajorComponents (Sheet 1 of 6)
NWS EHB 6-513
2-6
Figure 2-2. Antenna/Pedestal UD2 (Sheet 2 of 3)
NWS EHB 6-513
2-5
Figure 2-2. Antenna/Pedestal UD2 (Sheet 1 of 3)
For Training Use Only 2-55
NWS EHB 6-513
FP-5-273/(FP-5-274 blank)
Figure FO5-28. RF Pallet FunctionalBlock Diagram (Sheet 1 of 2)
NWS EHB 6-513
5-25/(5-26 blank)
Figure 5-1. Receiver Signal FlowBlock Diagram (Sheet 1 of 3)
NWS EHB 6-513
5-29/(5-30 blank)
Figure 5-1. Receiver Signal FlowBlock Diagram (Sheet 3 of 3)
NWS EHB 6-518
3-291/(3-292 blank)
Figure 3-48. AME ComponentLocations (Sheet 2 of 3)
NWS EHB 6-518
3-289/(3-290 blank)
Figure 3-48. AME ComponentLocations (Sheet 1 of 3)
NWS EHB 6-513
5-41/(5-42 blank)
Figure 5-4. IF Analog-to-DigitalConversion
NWS EHB 6-513
5-53/(5-54 blank)
Figure 5-6. Klystron Test Signal Generation
NWS EHB 6-513
2-14
Figure 2-3. Receiver Cabinet UD4 (Sheet 2 of 2)
NWS EHB 6-513
2-31
Figure 2-12. Radar Data Acquisition Data Processor Cabinet UD90/190 (Sheet 1 of 2)
NWS EHB 6-513
4-12
Figure 4-4. RDAIU 4A40 Controls and Indicators (Sheet 1 of 2)
NWS EHB 6-513
4-13
Figure 4-4. RDAIU 4A40 Controls and Indicators (Sheet 2 of 2)
P/O ANTENNA MOUNTED ELECTRONICSUD2A9
RECEIVER CABINETUD4
P/O ANTENNA MOUNTED ELECTRONICSUD2A9
RF PALLETUD2A5
IFDR4A38
TR Limiter2A5A1
Clutter Module2A9A4A4
Delay Line2A9A9
Horiz CW
Vert CW
Isolator2A9A8
Isolator2A9A7
2A9A5
2A9A6
J3
J1
J4
TX SAMPLE 2W552
Vert XMT Sample
Hybrid2A9A10
AT6-15 dB
J1
Main Bite Cal Module2A9A4A3
STAL
O
CW
J8
J6
J12
J10
J1
On rear ofBite Cal Assy.
J5
Horiz XMT Sample
2A9DC2
J3
J4
J4
Bandpass Filter2A5FL1
Low Noise Amplifier2A5A4
Gain VS TempCompensation
AT70-3 dB
AT80-3 dB
RECEIVER2A9A2
J2
J3
J4
J5
J6
J7
AT111 dB
AT121 dB
CP1
CP2
CP3 AT160-12 dB
FL1
FL2
AT170-12 dB
4A1RFGenerator
2A5DC1
J1
AZ ROTARYJOINT
2A1A3A9
J1
J2
J3
J4
J5
J6
AT3PhaseShifter
3 dB ZDRSwitch
Isolator2A9A4A5
J9
J11
J10
J13
J12
H-RF2W556
V-RF2W555
J3J1
J2
H-IF2W572
V-IF2W573
STALO2W557
2W559
2W558
2W560
2W567
2W566
2W568
KD H-TX (NOISE)
2W577
KD V-TX (NOISE)
2W576
H TEST (CW) / H SENSE 2W575
V TEST (CW) / V SENSE 2W574
J16
J17
J14J15 J13
AT4
Isolator2A9A12
Noise Module2A9A4A1
KDTest Signal
J3 J4
NoiseSource
J2
2A9DC1
J3
AT1-14 dB
AT1-30 dB
AT2-30 dB
AT2
Hybrid2A9A11
2A5DC2
J1
2A5DC3
J1
NWSTC WSR-88D Test PathsFor Training Use Only
LegendSTALO
CW
KD
NOISE
COHO
Hybrid
Step Atten2A9AT40-103dB
MatrixSwitch 2A9W57
2A9W58
2A9W
54
2A9W
55
2A9W53
2A9W212A9W272A9W28
2A9W19
2A9W26
2A9W25
2A9W22
2A9W24
2A9W37 2A9W17
2A9W38 2A9W18
2A9W19
2A9W
20
2A9W52
2A9W51
J16
J15
J29
W55
W156
W56
W53
W154
W54
/ /
/ /
/ /
Low Noise Amplifier2A5A5
Gain VS TempCompensation
J3
J2
J1Bandpass Filter2A5FL2
TR Limiter2A5A3
For Training Use Only 2-57
NWS EHB 6-518
3-289/(3-290 blank)
Figure 3-48. AME ComponentLocations (Sheet 1 of 3)
NWS EHB 6-513
5-51/(5-52 blank)
Figure 5-5. Test Signal PathBlock Diagram
- Linearity (Fast/Full)
- RCVR Bias
(5.4.6.3)
Tests Dynamic Range during Linearity test 90dB(sp) - 93dB (lp)
Switch Options:
Straight
Swapped
H to V (H isolated)
V to H (V isolated)
H only (V isolated)
V only (H isolated)
H to Both
V to Both
Isolated
"H" t/s
"V" t/s
(Table 5-3)(5.4.6.2)
- Sys Noise Temp
- Sun Check
(Table 5-2)
(5.4.6.1)
- Clutter Suppression
- RF Gen Phase Sifter Chk
- Power Sense
No loss
10us
KD & Noise
Switching
Attenuated CW andPhase Shifted CW
LNA -to-RCVR-to-IFDR
Circulators -to-Bandpass Filters-to-TR Limiters-to-LNA-to-Rcvr-to-IFDR
NWSTC MODIFIED DRAWING FOR TRAINING USE ONLY
Provides 20dB of isolation
0-6dB
0-6dB
Provide 20dB of isolation
"H" t/s
"V" t/s
6dB
Reflectivity Cals
Velocity & Phase Cals
LNA -to-RCVR-to-IFDR
For Training Use Only 2-53