Theory of Operation
Overall Functional Description
6
6-9
ATTENUATOR
CW
AM
CONTROL
LEVEL
CARRIER
LEVEL
10Hz - 20kHz
WAVE
TABLE
CONTROLLED
H.F. CARRIER PRE-MODULATION
L.F. CARRIER
MPX,
10MHz CLOCK
FILTER &
AMPLIFY
VOLTAGE
CARRIER LEVEL DEMAND
VOLTAGE
-40dB
HIGH I
S
OLATION
S
WITCH
RF OUTPUT
TO HEAD
-20dB
+
-
ERROR
A.M. ENVELOPE
DETECTOR
ENVELOPE
A.M.
WIDE FM
62.5M - 125MHz
500M - 1GHz
ANALOGUE
MULTIPLIER
VOLTAGE
CONTROLLED
9M - 62.5MHz
R.F.
ATTENUATED R.F.
A.M. ENVELOPE &
AMPLIFY
1G - 1.7GHz
1.7G - 2.7GHz
ERROR
ATTENUATOR
CONTROLLED
R.F. CARRIER CONTROL &
20kHz - 125MHz
CARRIER LEVEL,
LEVEL
L.F.
LEVEL
ADC
EXTERNAL MODULATION
HEAD
CONTROL
HF LEVEL
S
EN
S
E FROM HEAD
DETECTOR
-
+
CARRIER
JA01
A.M. ENVELOPE DEMAND
DATA
CONTROL
CW
AM
125MHz - 1.8GHz
125MHz - 4GHz
10Hz - 125MHz
+5V & RELAY
S
UPPLY
VOLTAGE
DETECTOR
MPX
GENERATION & CONTROL
CONTROLLED
ATTENUATOR
VOLTAGE
CONTROLLED
ATTENUATOR
VOLTAGE
CONTROLLED
ATTENUATOR
H.F.
ATTENUATOR
ATTENUATOR
CONTROLLED
VOLTAGE
LF LEVEL
S
EN
S
E FROM HEAD
MPX,
FILTER &
125M - 1.7GHz
1G - 2GHz
250M - 500MHz
125M - 250MHz
1G - 2.7GHz
20kHz - 9MHz (50kHz - 11MHz i
n AM)
62.5M - 125MHZ
0V
JB00
60-WAY RIBBON
NCO
32-BIT
AM
CW
2.7GHz - 4GHz
1.8GHz - 2.7GHz
DIV 2^N
J300/
0V
J301
0V
J800
0V
J801
0V
AMP
MUX
FILTER
1G - 2.7GHz
J101
0V
DIV 2
MUX
FILTER
0V
2.7G - 4GHz
J100
JB01
J200/ J201
0V
MUX
ead256f.eps
Figure 6-3. A2 RF Output PCA - Simplified Schematic Diagram
Содержание 9640A Series
Страница 8: ......
Страница 16: ...9640A Instruction Manual viii...
Страница 22: ...9640A Instruction Manual 1 2...
Страница 40: ...9640A Instruction Manual 2 2...
Страница 108: ...9640A Instruction Manual 4A 2...
Страница 138: ...9640A Instruction Manual 4C 2...
Страница 164: ...9640A Instruction Manual 4D 2...
Страница 168: ...9640A Instruction Manual 4D 6...
Страница 170: ...9640A Instruction Manual 4E 2...
Страница 174: ...9640A Instruction Manual 4E 6...
Страница 176: ...9640A Instruction Manual 4F 2...
Страница 184: ...9640A Instruction Manual 4F 10...
Страница 186: ...9640A Instruction Manual 4G 2...
Страница 190: ...9640A Instruction Manual 4G 6...
Страница 192: ...9640A Instruction Manual 5 2...
Страница 272: ...9640A Instruction Manual 5 82...
Страница 274: ...9640A Instruction Manual 6 2...
Страница 284: ...9640A Instruction Manual 7 2...
Страница 309: ...8 1 Chapter 8 Lists of Replaceable Parts Title Page Introduction 8 3 How to Obtain Parts 8 3 Parts Lists 8 4...
Страница 310: ...9640A Instruction Manual 8 2...
Страница 316: ...9640A Instruction Manual 8 8...
Страница 320: ...9640A Instruction Manual A 4...