MODEL 3117-3338#-720 Up/Downconverter
1.0 General
1.1 Equipment Description
The 3117-3338#-720 Up/Downconverter converts 0.72 to 3.3 and 3.8 to 0.72 GHz (±0.3 GHz) with non-inverting spectrums. Front
panel LEDs provide indication of Remote, DC Power, upconverter mute, and PLL Alarm. The maximum gain is +20 dB for the
upconverter and +20 dB for the downconverter (adjustable in 0.5 ± 0.5 dB steps). Gain and internal/external/Auto reference frequency
selection are controlled by front panel switches or remote selection (via RS-232C/485, standard; Ethernet Optional) and are viewable
on the LCD Display. Connectors are Type N female for the RF DOWN IN and RF UP OUT and BNC female for the RF UP IN, RF
DOWN OUT 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 3117 is powered by a 100-240 ± 10% VAC power supply, and in a 1 3/4” X 19” X 14” rack mount chassis.
MENU
EXECUTE
MODEL 3117
C
ROSS
T
ECHNOLOGIES INC.
U 3300 G=+10.0 REF=
D 3800 G=+18.0 AUT-E
MUTE
UPCONVERTER
DOWNCONVERTER
REMOTE
ALARM
POWER
ALARM
UP/DOWNCONVERTER
FRONT PANEL
AC
UPCONVERTER
RF OUT
GND
DOWNCONVERTER
J4
J5
J3
J18
J2
RF IN
10 MHZ REF
10 MHZ
RF IN
EXT REF
J1
RF OUT
OUTPUT
INPUT
J10
AND
MONITOR
CONTROL
J20
1
5
2
3
4
6
7
8
9
REAR PANEL
Figure 1.1 Model 3117-3338#-720 Front & Rear Panels
3.30 ±0.3
GHz OUT
RF2 Out
3.80 ±0.3
GHz IN
RF1 In
PLL,ATT, CONTROL
3117-3338#-720 Up/Dowconverter Block Diagram
10 MH
z
To PLLs
EXT 10 M
10 M
MON
0.72 ±0.3
GHz IN
RF2 In
3.30 ±0.3 GHz BP
1.1 GHz LP
0.72 ±0.3
GHz OUT
RF1 Out
3.80 ±0.3 GHz BP
1.1 GHz LP
Upconverter
Dowconverter
M&C
V
A
R
A
T
T
V
A
R
A
T
T
3.08 GHz
CONTROLLER
2.58 GHz
Figure 1.2 Model 3117-3338#-720 Up/Downconverter Block Diagram
3117-3338#-720 Manual, Rev. 0
Page 3
03/23/2022
