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A10 I/Q Multiplexer
J11
Z600
Sel
Latch
CAL
On
Latch
Ext Out
Sellect
Ext Out
IQ Offset
DACs
Ext Out
IQ Gain
Latches
EXT I In
J7
ABUS
I EXT OUT
Q EXT OUT
J12
ABUS
600
ABUS
Cal Source
I&Q
EXT Q In
Ext In
IQ
Offset
DACs
Cal IQ
DACs
J8
Path1
Sel
Latches
axb
a
b
Path1 IQ
Gain
Latches
Ext Out
IQ Fine
Adj DACs
Sum Sw1
Latches
b
Sum Sw2
Latches
Path2
IQ Gain
Latches
Fader
On
To Q
PATH 2
IQ Pol
Sel
Latch
b
Path2 IQ
Fine Adj
DACs
P1-8
Audio 2
(Q only)
ABUS
J9 (I)
4 GHz Modulator - IQ
To A13 Output
From Q
1/64
Sum Sw4
Latches
CW Bias
IQ DACs
Coarse
Offset IQ
DACs
Offset Cancel
& Adjust
Coarse
Fine IQ
DACs
P1-32
RMS
Converters
IQ Atten
Select
Latch
axb
Path2 Sel
Latches
Audio 1
(I only)
Q EXT OUT
J10 (Q)
Sum
Sw3
Latches
a
I EXT OUT
ABUS
1/64
Path1 IQ
Fine Adj
DACs
J13
J14
axb
a
P1-20 (I)
ABUS
IQ RMS
Offset
Adj
DACs
PATH 1
P1-46 (Q)
Ext Out
IQ Bar
Offset
DACs
1/64
P1-9 (I)
P1-34 (Q)
4 GHz Mod Offset Sense - IQ
From A13 Output
I/Q Inputs
J20-50 (Q)
J20-22 (I)
To A18
Reference
P3-5
To A18
Reference
P3-2
A7 Baseband Generator
A18
Reference
10 MHz Ref
A25
Rear Panel
Ext Ref
Baseband Generator
Burst Pulse Out
blk_05
A18
Reference
Digital Modulation Block Diagram for All Options
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