MODEL 3116-192 Block Downconverter
1.0 General
1.1 Equipment Description
The 3116-192 Block Downconverter converts 19.2 - 20.2 GHz to 0.95 - 1.95 GHz with low phase noise and flat
frequency response. Frequency translation is via a 18.25 GHz local oscillator. The gain is +35 ± 2 dB
maximum and is adjustable in 0.5 ± 0.5 dB steps. Front panel LEDs provide indication of Remote operation,
PLL Alarm and DC Power. Gain and internal/external/Auto reference frequency selection are controlled by
front panel switches or remote selection (via RS 232C, standard; Ethernet Optional) and are viewable on the
LCD Display. Connectors are Super SMA female for the RF and BNC female for the L-Band and external
reference input and reference output. In AUTO, the 10 MHz reference stays in external if the external level is
+3 dBm, ±3 dB. The 3116 is powered by a 100-240 ± 10% VAC power supply, and housed in a 1 3/4” X 19 “
X 12” rack mount chassis.
MENU
EXECUTE
MODEL 3116
C
ROSS
T
ECHNOLOGIES INC.
IN LO FREQ REF.
3 9790.4 EXT
POWER
REMOTE
ALARM
DOWNCONVERTER
19.2-20.2 GHZ
G=+10.0 Ref AUTO-I
FRONT PANEL (Shown with optional Etherent)
AC
RF INPUT
GND
J101
J8
10 MHZ REF
OUTPUT
J11
ALARM
1
5
2
3
4
6
7
8
9
J2
EXT 10 MHZ
INPUT
L-BAND
OUTPUT
J1
J14
REAR PANEL (Shown with optional Etherent)
FIGURE 1.1 Front and Rear Panels
0.95 -
1.95
GHz
OUT
19.2
to
20.2
GHz
IN
1.95 GHz LP
CONTROLLER
G=+10.0 Ref AUTO
19.2-20.2 GHz BP
18.25
GHz
EXT
10MHz
var
atten
INT
10MHz
3116-192 Block Diagram
AUTO
FIGURE 1.2 Block Diagram
3116-192 Manual
Page 3
12/02/21
