OPTION 503, 508, 513, 526 RF/mW MXA RF BLOCK DIAGRAM
(Lowband Path - Input signals < 3.6 GHz)
RF (Low Freq)
BLOCK DIAGRAM
A9 INPUT
ATTENUATOR A
A15 FRONT END CONTROLLER
P/O Enhanced
Front End
Controller
A13A1 BANDPASS FILTER
A10 INPUT
ATTENUATOR B
A11 LOWBAND
SWITCH
A12 YTF
SW1
(Option MPB)
SW2
(Option MPB)
A13 FRONT END
30 dB
2 dB
2 dB
6 dB
1
1
C
C
2
2
10 dB
-25 dBm
-35 dBm
-37 dBm
20 dB
6 dB
0 - 24 dB
+20 dB
Cal Signal
From A16 Reference
4800 MHz, -28 dBm
or
50 MHz, -25 dBm
13.6 GHz - 26.5 GHz Path
J7
J9
J8
J13
J1
3.6 GHz - 13.6 GHz Path
3.6 GHz - 26.5 GHz
3 Hz - 3.6 GHz
Thru Path
4 GHz
+30 dB
-32 dBm
Preamp
Mixer 3
Mixer 2
Mixer 1
Preamp
Electronic Attenuator
1st LO OUT
W26
(Opt EXM)
To A2
Analog IF
2nd LO
4800 MHz
3 - 15 dBm
W5
from A16
Reference Bd
260 MHz - 400 MHz
120 MHz
LPF
8.3 - 14 GHz
W19
W10
W11
W9
W3
J900
AUX
IF OUT
J901
J902
IF In
Ext
IF In
W36
W15
W7
IF OUT
322.5 MHz
-28 dBm
+8 dBm
W17
J903
J102
J301
to AIF
322.5 MHz
-29 dBm
W37
W39
to rear
panel
Option CR3
2nd IF
-35 dBm
Burst
Trigger
J1100
W16
W18
W30
W22
W31
J800
J700
J801
J300 J302
W35
W33
W34
W8
W32
AT1
Preselector
J3
J3J5
J10
J11
J6
ATTENUATOR CONTROL
LOW BAND SWITCH CONTROL
PRESELECTOR BYPASS CONTROL
PRESELECTOR DRIVER CONTROL
X2
LOG
DET
J
ALIGNMENT
THERMOMETER
RF
Input
VCO
+10 to
-10 mA
DAC
DAC
LO
DISTRIBUTION
EXT
MIXER
IF OUT from A13
NOTE: Power levels based on these settings:
Mode: Spectrum Analyzer unless specified differently
Input Signal 50 MHz Calibrator (Press Input/Output, RF Calibrator, 50 MHz)
Center Frequency 50 MHz
Span 0 Hz
Input Attenuation 10 dB
Preamp OFF
Auto Align OFF after initial Auto Align
FOOTNOTES
1
IF Path IF Freq.
10 MHz
25 MHz
40 MHz
>85 MHz
322.5 MHz
322.5 MHz
250 MHz
300 MHz
BIAS
TEE
MIXER BIAS, AMP BIAS,
PREAMP BIAS, E-ATTEN CONTROL,
SWITCH CONTROL, 1st LO POWER OPTIMIZATION
A13W1
A13W2
W20
W40
J2
J4
5
5
1
3
5
6
7
1, 2, 3
3
4
3
W4
J2 (Opt EXM)
W27 (Opt EXM) W28 (Opt EXM)
+15 dBm
IF
Out
J2
ECAL In
IF INIF OUT
AUX LO
+10 dBm
AUX LO
+3 dBm
blockm40_rf_low
Center: 5.1 GHz
3 dB BW: 150 MHz
from A14
LO Synthesizer
J4
J12
J2
AUX IF OUT is only available
with Option CR3 and/or CRP
Units with any of the following options:
CR3, CRP, MPB, B40, DP2
Units without any of the following options:
CR3, CRP, MPB, B40, DP2
Units with any of the following options:
B40, MPB, DP2
S/N < MY/SG/US52330000 with any of the following options:
B40, MPB, DP2
S/N < MY/SG/US52330000 without any of the following options:
B40, MPB, DP2 or S/N > MY/SG/US52330000
Signal levels above 3 GHz include cable loss
of measurement system
2
3
4
5
6
7
SWEEP
RAMP
W38
Option B40
to Digital IF
Mode = I/Q Analyzer
IF Path 40 MHz
250 MHz, -35 dBm
or
W53 (Opt B85/B1A/B1X)
to WB AIF
Mode = I/Q Analyzer
IF Path = 85/125/140 MHz
300 MHz, -35 dBm
J1
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