MODEL 1200-07 IF AGC AMPLIFIER
1.0 General
1.1 Equipment Description
The 1200-07 IF Amplifier provides automatic gain control (AGC) for a 50 to 200 MHz IF signal. It takes a
-80 to 0 dBm input signal and automatically adjusts the gain for a -35 dBm ± 10 dB output. The 1200-07 has
a band limiting lowpass filter. It also has capabilities to switch between automatic gain control (AGC) or
manual gain control (MGC). A potentiometer on the rear panel allows for manual gain adjustment when in
MGC mode. The IF in and out connectors are BNC female. All circuitry is on a single PCB housed in a 1RU
X 14” deep chassis. An internal switching power supply powers the unit with a 100-240 ±10% VAC, 47-63
Hz input.
REAR
FRONT
J1
MODEL 1200
AMPLIFIER
C
ROSS
T
ECHNOLOGIES, INC.
POWER
IF
MONITOR
LEVEL
ADJUST
AC
GND
J109
IF 2
OUT
IF IN
J107
J106
IF 1
OUT
S5
AGC
MGC
MGC
ADJUST
R123
J104
AGC
VOLTAGE
FIGURE 1.1 Model 1200-07 Front and Rear Panels
IF 2
OUT
(J107)
IF MON
OUT
(J1)
IF 1
OUT
(J106)
S
P
L
I
T
T
E
R
IF
IN
(J109)
AGC
CONTROL
ATT
ATT
AGC
ATT
MGC
V
FIGURE 1.2 Model 1200-07 Block Diagram
1200-07 Manual_A
Page 3
09/13/10
