Table of Contents
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REAR PANEL
INTERCONNECTS
N5244B and N5245B 4-Port Overall Block Diagram
N5244B and N5245B 2-Port Overall Block Diagram
Including Options 201-Standard; 217-Attenuators;
219-Attenuators and Bias Tees;
222-Attenuators, Second Source, Combiner, and Bypass Switches;
224-Attenuators, Bias Tees, Second Source, Combiner, and Bypass Switches;
029-Noise Figure Measurements
A55
A21 CPU
HARD DISK
DRIVE
USB x 4
INTERFACE
1
2
3
4
5
Mixer
Brick LO
Band
A7/A8/A12/A13
CONTROLLER
GPIB PORT
Harmonic
LO Synthesizer
A25 HMA26.5
RF Synthesizer
A5/A10 Source
GPIB
INTERFACE
40 GHz Doubler
Number
Frequency (GHz)
Frequency (GHz)
Frequency (GHz)
Frequency (GHz)
Frequency (GHz)
10/100 BASE-T
LAN
ETHERNET
0
1
--
--
--
--
--
--
--
--
--
--
1
1
VGA
INTERFACE
2
1
0.01248 to 0.01648
0.01248 to 0.01648
0.010 to 0.014
0.010 to 0.014
0.010 to 0.014
A20
3
1
0.01648 to 0.02148
0.01648 to 0.02148
0.014 to 0.019
0.014 to 0.019
0.014 to 0.019
POWER
A19 MIDPLANE
SUPPLY
4
1
0.02148 to 0.02948
0.02148 to 0.02948
0.019 to 0.027
0.019 to 0.027
0.019 to 0.027
AC LINE IN
5
1
0.02948 to 0.04048
0.02948 to 0.04048
0.027 to 0.038
0.027 to 0.038
0.027 to 0.038
A22
6
1
0.04048 to 0.05548
0.04048 to 0.05548
0.038 to 0.053
0.038 to 0.053
0.038 to 0.053
GPIB
7
1
0.06044 to 0.08244
0.06044 to 0.08244
0.053 to 0.075
0.053 to 0.075
0.053 to 0.075
8
1
0.08244 to 0.11244
0.08244 to 0.11244
0.075 to 0.105
0.075 to 0.105
0.075 to 0.105
TALKER/LISTENER
GPIB PORT
GPIB
INTERFACE
9
1
0.11244 to 0.15344
0.11244 to 0.15344
0.105 to 0.146
0.105 to 0.146
0.105 to 0.146
10
1
0.15344 to 0.21244
0.15344 to 0.21244
0.146 to 0.205
0.146 to 0.205
0.146 to 0.205
11
1
0.21244 to 0.25744
0.21244 to 0.25744
0.205 to 0.250
0.205 to 0.250
0.205 to 0.250
12
1
0.25744 to 0.40344
0.25744 to 0.40344
0.250 to 0.396
0.250 to 0.396
0.250 to 0.396
13
1
0.40344 to 0.50744
0.40344 to 0.50744
0.396 to 0.500
0.396 to 0.500
0.396 to 0.500
14
1
0.50744 to 0.63544
0.50744 to 0.63544
0.500 to 0.628
0.500 to 0.628
0.500 to 0.628
15
1
0.63544 to 1.0074
0.63544 to 1.0074
0.628 to 1.000
0.628 to 1.000
0.628 to 1.000
16
1
1.0074 to 1.5074
1.0074 to 1.5074
1.000 to 1.500
1.000 to 1.500
1.000 to 1.500
17
1
1.5074 to 2.0074
1.5074 to 2.0074
1.500 to 2.000
1.500 to 2.000
1.500 to 2.000
18
1
2.0074 to 3.0074
2.0074 to 3.0074
2.000 to 3.000
2.000 to 3.000
2.000 to 3.000
19
1
3.0074 to 3.2074
3.0074 to 3.2074
3.000 to 3.200
3.000 to 3.200
3.000 to 3.200
20
1
3.2074 to 4.0074
3.2074 to 4.0074
3.200 to 4.000
3.200 to 4.000
3.200 to 4.000
21
1
4.0074 to 5.3394
4.0074 to 5.3394
4.000 to 5.332
4.000 to 5.332
4.000 to 5.332
22
1
5.3394 to 6.7594
5.3394 to 6.7594
5.332 to 6.752
5.332 to 6.752
5.332 to 6.752
23
1
6.7594 to 8.0074
6.7594 to 8.0074
6.752 to 8.000
6.752 to 8.000
6.752 to 8.000
24
1
8.0074 to 8.5074
8.0074 to 8.5074
8.000 to 8.500
8.000 to 8.500
8.000 to 8.500
25
1
8.5074 to 10.6714
8.5074 to 10.6714
8.500 to 10.664
8.500 to 10.664
8.500 to 10.664
A24 J20
PULSE I/O
26
1
10.6714 to 12.0074
10.6714 to 12.0074
10.664 to 12.000
10.664 to 12.000
10.664 to 12.000
27
1
12.0074 to 12.8074
12.0074 to 12.8074
12.000 to 12.800
12.000 to 12.800
12.000 to 12.800
28
1
12.8074 to 13.5174
12.8074 to 13.5174
12.800 to 13.510
12.800 to 13.510
12.800 to 13.510
A24 J2
A
29
1
6.7587 to 7.7037
13.5174 to 15.4074
6.755 to 7.700
13.510 to 15.400
13.510 to 15.400
A24 J202
B
30
1
7.7037 to 8.0037
15.4074 to 16.0074
7.700 to 8.000
15.400 to 16.000
15.400 to 16.000
A24 J602
31
1
8.0037 to 9.5037
16.0074 to 19.0074
8.000 to 9.500
16.000 to 19.000
16.000 to 19.000
IF INPUTS
C/R1
32
1
9.5037 to 10.0037
19.0074 to 20.0074
9.500 to 10.000
9.500 to 10.000
19.000 to 20.000
A24 J802
D/R2
33
1
10.0037 to 10.6677
20.0074 to 21.3354
10.000 to 10.664
10.000 to 10.664
20.000 to 21.328
A24 J402
R
34
1
10.6677 to 12.0037
21.3354 to 24.0074
10.664 to 12.000
10.664 to 12.000
21.328 to 24.000
LOAD
35
1
12.0037 to 13.2537
24.0074 to 26.5074
12.000 to 13.250
12.000 to 13.250
24.000 to 26.500
W69
0.01 - 26.5 GHz
LO OUT (J5)
36
3
8.8358 to 9.0051
8.8358 to 9.0051
13.250 to 13.504
13.250 to 13.504
26.500 to 27.008
37
3
9.0051 to 10.6691
9.0051 to 10.6691
6.752 to 8.000
13.504 to 16.000
27.008 to 32.000
EXT
LOAD
TSET
W66
3.2 - 19 GHz
38
3
10.6691 to 12.1691
10.6691 to 12.1691
8.000 to 9.125
16.000 to 18.250
32.000 to 36.500
RF1 OUT (J6)
DRIVE
39
3
12.1691 to 13.5025
12.1691 to 13.5025
9.125 to 10.125
18.250 to 20.250
36.500 to 40.500
40
3
6.7512 to 7.1106
13.5025 to 14.2211
10.125 to 10.664
20.250 to 21.328
40.500 to 42.656
41
3
7.1106 to 7.2512
14.2211 to 14.5025
10.664 to 10.875
21.328 to 21.750
42.656 to 43.500
42
3
7.2512 to 7.7012
14.5025 to 15.4025
10.875 to 11.550
21.750 to 23.100
43.500 to 46.200
43
3
7.7012 to 8.0012
15.4025 to 16.0025
11.550 to 12.000
23.100 to 24.000
46.200 to 48.000
44
3
8.0012 to 8.3346
16.0025 to 16.6691
12.000 to 12.500
24.000 to 25.000
48.000 to 50.000
LOAD
W134
SW TSET IN (J7)
To A51
SW TSET IN (J1)
W122
To A53
Port 2
W123
W121
From A53
SW SRC OUT (J2)
Test Node
Error Description
Assembly
Frequency Band
A14 FREQUENCY REFERENCE
A5
0.01 - 13.5 GHz
W78
10 MHz
8
Unleveled, Source 1, Out 1
10 MHz
J3
A7
13.5 - 50 GHz
REF OUT
A5
0.01 - 13.5 GHz
10 MHz
9
Unleveled, Source 1, Out 2
HIGH STAB
OCXO
A8
13.5 - 50 GHz
Full Range
DAC
10
Unleveled, Source 1 Synthesizer
A4
A10
0.01 - 13.5 GHz
11
Unleveled, Source 2, Out 1
A12
13.5 - 50 GHz
A10
0.01 - 13.5 GHz
W79
10 MHz
12
Unleveled, Source 2, Out 2
10 MHz
J2
REF IN
A13
13.5 - 50 GHz
Full Range
13
Unleveled, Source 2 Synthesizer
A17
Full Range
14
Unleveled, LO Drive
A25
Full Range
15
Unleveled, LO Synthesizer
A15
Full Range
16
Unlocked, Source 1 Synthesizer, Integrator Low
A4
A23 TEST SET MOTHERBOARD
Full Range
17
Unlocked, Source 1 Synthesizer, Integrator High
A4
BIAS 1 IN
Full Range
19
Unlocked, Source 2 Synthesizer, Integrator Low
A17
Full Range
20
Unlocked, Source 2 Synthesizer, Integrator High
A17
22
Unlocked, LO Synthesizer, Integrator Low
A15
Full Range
BIAS 3 IN
23
Unlocked, LO Synthesizer, Integrator High
A15
Full Range
25
Unleveled, Doubler 1, Prelevel
A7
13.5 - 70 GHz
26
Unleveled, Doubler 2, Prelevel
A8
13.5 - 70 GHz
BIAS 4 IN
27
Unleveled, Doubler 3, Prelevel
A12
13.5 - 70 GHz
28
Unleveled, Doubler 4, Prelevel
A13
13.5 - 70 GHz
29
Unleveled, Source 1, P4
A5
13.5 - 70 GHz
BIAS 2 IN
30
Unleveled, Source 2, P4
A10
13.5 - 70 GHz
MEAS TRIG RDY
MEAS TRIG RDY
AUX TRIG 1 IN
AUX TRIG 1 IN
AUX TRIG 1 OUT
AUX TRIG 1 OUT
AUX TRIG 2 IN
AUX TRIG 2 IN
AUX TRIG 2 OUT
AUX TRIG 2 OUT
28 V
28 V
MEAS TRIG IN
MEAS TRIG IN
25
TEST SET I/O
\
TEST SET I/O
INTERFACE
9
PWR I/O
PWR I/O
\
INTERFACE
36
HANDLER I/O
HANDLER I/O
\
INTERFACE
15 Sep 2021
N5245B_blk_2port
FRONT PANEL
INTERCONNECTS
A3
A2
USB x 4
DISPLAY
USB BD
A16 SIGNAL PROCESSING
ADC MODULE (SPAM)
USB
HUB
9 MHz
DISPLAY
INVERTER
PROCESSOR
POWER
KEYPAD
J1
ADC
15 MHz
FLASH
A
RAM
SPEAKER
9 MHz
A1 FRONT PANEL INTERFACE BOARD
J2
USB
ADC
15 MHz
EEPROM
B
MAIN
PCI BUS
PCI
9 MHz
CPU
BRIDGE
J4
ADC
15 MHz
ROM
RAM
R
VGA
VIDEO PROCESSOR
9 MHz
DSP
VIDEO RAM
J5
ADC
RAM
15 MHz
C/R1
9 MHz
J6
ADC
A18
15 MHz
D/R2
SYSTEM
POWER BUS
MOTHERBOARD
LOCAL DIGITAL BUS
4
X6
DITHER
PULSE
\
NOISE
DRIVE
10 MHz REF
J3
TO A24
DIRECT CONNECT
THRU A18
HIGH DENSITY DATA BUS
A23
TO A4, A5, A7, A8,
A10, A12, A13,
TEST SET
MOTHERBOARD
POWER BUS
A14, A15, A17
RIBBON CABLE CONNECTIONS
LOCAL DIGITAL BUS
TO A24, A25, A27, A28,
A37-A41, A46-A53
MIXED POWER AND CONTROL SIGNALS
FROM THE A23 TEST SET MOTHERBOARD
SERIAL TEST BUS NODES
Bx = ACTIVE SOURCE BAND
10 MHz REF
15
\
OPTION 029
A9 NOISE RECEIVER
10-25 MHz
J6
25-60 MHz
60-150 MHz
3.0 GHz
150-350 MHz
31.6 MHz
L
I
R
12 MHz
350-750 MHz
J4
TO A14
ADC
0.75-1.5 GHz
LOW BAND
OVERLOAD
DETECTOR
1.5-3.0 GHz
HIGH BAND
31.6 MHz
OVERLOAD
DETECTOR
J1
3.0-6.0 GHz
EXT TEST SET DRIVE LO OUT
EXT TEST SET DRIVE RF OUT
A15 13.5 GHz LO SYNTHESIZER
B26-28,
6.75-8.0 GHz
34-36,
10.66-13.51 GHz
2-4 GHz
B23,29-30,37
B24-28,
41-44
31-36,
38-44
∫
B22,26-28,
5.33-6.75 GHz
X2
8.0-10.66 GHz
MAIN
B21-44
X2
34-36,41-44
22,23
B24-25,
B21,24-25,
4.0-5.33 GHz
1
φ
31-33,38-40,
31-33,
ƒ
Frac-N
38-40
Logic
12.5 MHz
to
B2-44
3.0-4.0 GHz
0.01-13.51 GHz
13.518 GHz
B19-20
-10 to +10 dBm
50 MHz
W51
REF
B21-23,
2.0-3.0 GHz
29-30,37
J1207
J5
B18
15
10 MHz
W74
ALC
10 MHz REF
1.0-2.0 GHz
J4
B16-17
÷2
50 MHz
50 MHz REF
W75
0.5-1.0 GHz
÷2
J5
250 MHz
B14-15
÷4
W76
LOCAL
DDS
J6
DIGITAL
0.25-0.5 GHz
100 MHz
W77
B12-13
φ
BUS
÷8
J7
J102
ƒ
÷10
POWER
B2-11
BUS
DDS=Direct Digital Synthesizer
NC
J8
0-200 Hz
∫
A17 13.5 GHz SOURCE 2 SYNTHESIZER
B26-28,
6.75-8.0 GHz
34-36,
10.66-13.51 GHz
2-4 GHz
B24-28,
41-44
B23,29-30,37
31-36,
38-44
∫
5.33-6.75 GHz
X2
B22,26-28,
8.0-10.66 GHz
MAIN
B21-44
X2
34-36,41-44
19,20
B21,24-25,
4.0-5.33 GHz
B24-25,
φ
31-33,38-40,
31-33,
Frac-N
38-40
ƒ
Logic
B2-44
3
3.0-4.0 GHz
2
B19-20
0.01-13.51 GHz
-10 to +10 dBm
\
DC BIAS 1 TO A42
50 MHz
W2
J541
REF
B21-23,
2.0-3.0 GHz
29-30,37
J1207
J5
B18
13
2
1.0-2.0 GHz
ALC
\
DC BIAS 3 TO A43
B16-17
J542
÷2
0.5-1.0 GHz
B14-15
250 MHz
÷4
2
LOCAL
DDS
LOCAL
\
DC BIAS 4 TO A44
0.25-0.5 GHz
J543
DIGITAL
DIGITAL
BUS
B12-13
÷8
BUS
J102
POWER
B2-11
POWER
BUS
DDS=Direct Digital Synthesizer
BUS
2
\
DC BIAS 2 TO A45
J544
A4 13.5 GHz SOURCE 1 SYNTHESIZER
B26-28,
6.75-8.0 GHz
34-36,
10.66-13.51 GHz
B24-28,
41-44
2-4 GHz
B23,29-30,37
31-36,
∫
38-44
B22,26-28,
5.33-6.75 GHz
X2
8.0-10.66 GHz
B21-44
34-36,41-44
MAIN
X2
16,17
B21,24-25,
B24-25,
φ
31-33,38-40,
4.0-5.33 GHz
31-33,
Frac-N
38-40
ƒ
POWER
Logic
BUS
B2-44
3
3.0-4.0 GHz
0.01-13.51 GHz
TO
B19-20
-10 to +10 dBm
A34 THRU A37,
50 MHz
W1
A42 THRU A49
B21-23,
REF
2.0-3.0 GHz
29-30,37
J1207
LOCAL
J5
B18
DIGITAL BUS
10
ALC
1.0-2.0 GHz
B16-17
÷2
0.5-1.0 GHz
250 MHz
B14-15
÷4
DDS
LOCAL
0.25-0.5 GHz
LOCAL
DIGITAL
DIGITAL
BUS
B12-13
÷8
BUS
POWER
B2-11
J102
POWER
BUS
BUS
DDS=Direct Digital Synthesizer
A24 IF MULTIPLEXER
IF = 0.826 MHz for CW Freq < 53 MHz
IF = 7.438 MHz for CW Freq > 53 MHz
Main IF A
A
W61
10.7 MHz
P1
Pulse A
PULSE
GATES
IF OUT A
Ext IF In A
P3
Aux R3
W147
LFE IF A
W69
W148
Main IF B
B
10.7 MHz
P201
Pulse B
PULSE
W129
GATES
IF OUT B
Ext IF In B
W64
P203
R1
Aux R4
P411
LFE IF B
R2
P412
Main IF R
R
W57
10.7 MHz
Pulse R
PULSE
W130
GATES
R3
IF OUT R
Ext IF In R
P413
P403
LFE IF R
R4
W73
P414
Main IF C
C/R1
10.7 MHz
P601
Pulse C
PULSE
GATES
IF OUT C/R1
Ext IF In C
P603
WITHOUT OPTION 029
AUX R2
LFE IF C
OPTION 029
D/R2
Main IF D
10.7 MHz
P801
Pulse D
PULSE
GATES
Ext IF In D
IF OUT D/R2
P803
Aux R1
From
LFE IF D
A25
FROM A16
4
PULSE DRIVE
PULSE
\
MODULATION
THRU A18
LOGIC
P1
SOURCE
FROM A23
PULSE
DRIVE OUT
15
\
5
IF INPUTS
\
A59 NOISE DOWNCONVERTER
W171
40.0-50.0 GHz
J3
X2
32.0-40.0 GHz
36.0-50.0 GHz
26.0-32.0 GHz
26.0-36.0 GHz
W172
L
I
R
12.0-26.0 GHz
W175
J2
6.0-12.0 GHz
J1
J5
W173
0.010-6.00 GHz
A7 50 GHz
W56
W55
DOUBLER
ALC
Modulator
W5
P4
25
A25 LO MULTIPLIER/AMPLIFIER 26.5 (HMA26.5)
W6
P3
20.0-26.5 GHz
2
B33-35,
46-48
15.4-20.0 GHz
10 MHz - 13.5 GHz
B29-35,
0.013 -
40-48
26 GHz
W80
P1
X2
26.508 GHz
B30-32,
13.518-
42-45
26.508 GHz
13.5-15.4 GHz
B29,
14
40-41
∫
A12 50 GHz
DOUBLER
13 GHz
B2-28,36-39
0.013-13.518 GHz
FROM
A19
ALC
Modulator
W9
P4
27
W10
P3
4
J402
P4
B29-31: 13.5-19 GHz
A10 26.5 GHz SOURCE (SOURCE 2)
B32-44: 9.5-25 GHz
20-26.5 GHz
10 MHz - 13.5 GHz
30
B40-44
P1
12.8-20 GHz
16-20 GHz
B28
B29-44
X2
B31,38-39
B20-44
8.5-12.8 GHz
B29-31,
B20-28
B25-27
B20-28
13.5-16 GHz
37-44
B29-30,37
ALC
A13 50 GHz
Modulator
11
B2-28
Pulse
5.33-8.5 GHz
0.01-13.5 GHz
DOUBLER
Modulator
B22-24
W7
OUT 1
B20-28,32-36
P5
P1
B2-19
3.2-5.33 GHz
B20-21
4
ALC
B20-28
Modulator
B2-28
12
P4
B2-19
B2-28
ALC
0.01-13.5 GHz
Modulator
OUT 2
W8
28
P3
3.2 GHz
P3
B2-19
B2-19
P2
P6
PIN-switched LPF
ALC
Pulse
Modulator
Modulator
10 MHz-3.2 GHz
10 MHz - 13.5 GHz
P1
J402
P4
B29-31: 13.5-19 GHz
4
A5 26.5 GHz SOURCE (SOURCE 1)
B32-44: 9.5-25 GHz
20-26.5 GHz
B40-44
29
12.8-20 GHz
B28
A8 50 GHz
16-20 GHz
B29-44
B31,38-39
DOUBLER
X2
B20-44
8.5-12.8 GHz
B20-28
B25-27
B20-28
B29-31,
13.5-16 GHz
37-44
B29-30,37
ALC
Modulator
8
B2-28
ALC
Pulse
5.33-8.5 GHz
Modulator
B22-24
0.01-13.5 GHz
W3
Modulator
OUT 1
W6
P4
B20-28,32-36
P1
P5
3.2-5.33 GHz
B2-19
4
B20-21
26
B20-28
50 OHM
B2-28
9
LOAD
B2-19
P3
B2-28
ALC
0.01-13.5 GHz
Modulator
W4
OUT 2
P3
3.2 GHz
B2-19
B2-19
P2
P6
10 MHz - 13.5 GHz
PIN-switched LPF
ALC
Pulse
P1
10 MHz-3.2 GHz
Modulator
Modulator
A27 MIXER BRICK (1)
70.0 MHz
A
I
R
A
L
70.0 MHz
R1
R1
I
R
L
70.0 MHz
R2
I
R
R2
L
70.0 MHz
B
B
I
R
L
EXT TSET DRIVE LO OUT
FROM
A23
W80
A26 SPLITTER
To
W53
A27
W52
W170
OPTION 201, 217, 219
W11
W12
OPTION 222, 224
A50 BYPASS
SWITCH
W110
3.2 - 19 GHz
3.2 - 19 GHz
From
W106
W105
W11
50
P2
B39-48: 19-50 GHz
P5
W107
To rear panel
40-50 GHz
32-50 GHz
SW SRC OUT
B38
A54
B38,
32-40 GHz
19-50 GHz
26.5-32 GHz
COMBINER
47-48
B36-37
9
X2
W108
B35-37
24-32 GHz
43-46
19-26.5 GHz
ALC
19-50 GHz
B32-35
5
Modulator
Pulse
P6
19-24 GHz
Modulators
From rear panel COMB ARM IN
W109
B32-34,
39-42
From rear panel COMB THRU IN
20 GHz
B29-31
13.5-19 GHz
J401
13.5-19.5 GHz
Pulse
Modulator
J500
P2
B39-48: 19-50 GHz
P5
40-50 GHz
32-50 GHz
B38
B38,
32-40 GHz
47-48
19-50 GHz
26.5-32 GHz
B36-37
9
X2
B35-37
24-32 GHz
A51 BYPASS
19-26.5 GHz
43-46
5
From rear panel
SWITCH
ALC
19-50 GHz
B32-35
W114
Modulator
Pulse
P6
SW TSET IN
B32-34,
19-24 GHz
Modulators
W127
W13
W111
39-42
20 GHz
50
13.5-19 GHz
W113
B29-31
To rear panel SW SRC OUT
J401
13.5-19.5 GHz
Pulse
Modulator
J500
W15
W128
50 OHM
LOAD
P2
B39-48: 19-50 GHz
P5
40-50 GHz
32-50 GHz
B38
32-40 GHz
B38,
47-48
19-50 GHz
26.5-32 GHz
B36-37
9
X2
B35-37
24-32 GHz
43-46
19-26.5 GHz
ALC
19-50 GHz
Modulator
Pulse
B32-35
5
P6
B32-34,
19-24 GHz
Modulators
39-42
20 GHz
B29-31
13.5-19 GHz
13.5-19.5 GHz
J401
Pulse
Modulator
J500
OPTION 201, 217, 219
W17
W18
50 OHM
LOAD
P2
B39-48: 19-50 GHz
OPTION 222, 224
P5
40-50 GHz
32-50 GHz
A53 BYPASS
B38
From rear panel
W122
SWITCH
B38,
32-40 GHz
SW TSET IN
47-48
19-50 GHz
26.5-32 GHz
W120
B36-37
9
From W17
W119
X2
24-32 GHz
50
B35-37
43-46
19-26.5 GHz
5
W121
ALC
19-50 GHz
Modulator
Pulse
B32-35
P6
Modulators
To rear panel SW SRC OUT
B32-34,
19-24 GHz
39-42
20 GHz
B29-31
13.5-19 GHz
13.5-19.5 GHz
J401
Pulse
Modulator
J500
FRONT PANEL
INTERCONNECTS
OPTION 201
W37
RCVR A IN
W36
Port 1
OPTION 217, 219, 222, 224
CPLR ARM
A46 STEP
ATTEN
W98
W97
RCVR
TO A27 A
A IN
0-50 dB
W42
RCVR R1 IN
W43
REF 1
W41
W36
SOURCE OUT
W21
A37 REF
MIXER
SWITCH
RCVR R2 IN
W46
W36
REF 2
W33
SOURCE OUT
OPTION 201
W40
RCVR B IN
W36
Port 2
OPTION 217, 219, 222, 224
CPLR ARM
A49 STEP
ATTEN
W104
W103
RCVR
TO A27 B
B IN
0-50 dB
SOURCE OUT
W36
Port 1
CPLR THRU
A29 RECEIVER
A33
COUPLER
TEST PORT
OPTION 201
OPTION 201, 217, 222
COUPLER
W19
W20
PORT 1
OPTION 217, 219, 222, 224
OPTION 219, 224
To
To
Port 1
A42
W22
A38 STEP
Port 1
W36
DC BIAS 1
W36
BIAS TEE
W21
ATTEN
W83
W84
W81
W82
W161 (029)
0-50 dB
OPTION 029
WITH 224
DC BIAS 1
To
Port 1
A56 BYPASS
A42
W36
SWITCH
BIAS TEE
W162
W165
W84
50
A64 TUNER
WITH 222
W164
W157
Z
x
W163
OPTION 222, 224
SRC 2 OUT 1
SRC 2 OUT 2
SOURCE OUT
W36
Port 2
CPLR THRU
A32 RECEIVER
A36
COUPLER
TEST PORT
OPTION 201
OPTION 201, 217, 222
COUPLER
W31
W32
PORT 2
OPTION 217, 219, 222, 224
OPTION 219, 224
To
To
Port 2
A45
W34
A41 STEP
Port 2
W36
DC BIAS 2
W36
BIAS TEE
W33
ATTEN
W95
W96
W93
W94
0-50 dB
OPTION 029
WITH 224
DC BIAS 2
To
A57 BYPASS
Port 2
A45
W36
SWITCH
BIAS TEE
W166
W167
W96
50
W168
WITH 222
W169
W158
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Troubleshooting
