MODEL 2017-95 Up/Downconverter
1.0 General
1.1 Equipment Description
The 2017-95 L-band Up/Downconverter converts 70 MHz to 250-950 MHz (Up) and 250-950 MHz to 70 MHz
(Down) in 1 MHz steps with low group delay and flat frequency response. Synthesized local oscillators (LO)
provide frequency selection. Multi-function push button switches select the RF frequency, gain, and other
parameters. Front panel LEDs provide indication of DC power (green), PLL alarm for up and downconverters
(red), remote operation (yellow), and Upconverter mute (yellow). Gain can be manually controlled over a -10 to
+30 dB range for the Upconverter and over a 0 to +50 dB range for the Downconverter as adjusted by the front
panel multi-function push-button switches. Remote operation allows selection of frequency and gain. Parameter
selection and frequency and gain settings appear on the LCD display. Connectors are BNC female for IF and
the optional external reference input and output, and Type F female for RF. LNB or SSPB +24 VDC and 10
MHz reference can be inserted on the RF lines as added options. A high stability (±0.01ppm) option is also
available. It is powered by a 100-240 ±10% VAC power supply and housed in a 1.75” x 19” x 16” 1RU chassis.
MENU
EXECUTE
MODEL 2017
CROSS TECHNOLOGIES INC.
U F=475 G=+10.0
D F=625 G=+25.0
MUTE
UPCONVERTERDOWNCONVERTER
REMOTEALARM POWER ALARM
UP/DOWNCONVERTER
FRONT PANEL
AC
UPCONVERTER
RF OUT
SSPB
FUSE
GND
J4 J5J3J18J2
RF IN
10 MHZ REF
10 MHZ
IF IN
EXT REF
F2
LNB FUSE
F1
J1
IF OUT
OUTPUT INPUT
DS8 DS7
VDC on RF
VDC
on RF
J10
AND
MONITOR
CONTROL
15 234
6789
J20
DOWNCONVERTER
REAR PANEL
Figure 1.1 Model 2017-95 Front and Rear Panels
70
MHz
OUT
.250
to .950
GHz
IN
1750 MHz
BP
1820
MHz
2.7
to
3.3
GHz
120 MHz
LP
CONTROLLER
U F=475 G=+00.0
D F=625 G=+25.0
70
MHz
IN
.250
to
.950
GHz
OUT
1750 MHz
BP
1680
or
1820
MHz
2.7
to
3.3
GHz
REF
REF
REF TO
UP
VCOS
var
atten
10MHz*
+24VDC*
10MHz*
+24VDC*
EXT
10MHz*
*OPTIONAL
var
atten
var
atten
INT
10MHz
Figure 1.2 Model 2017-95 Up/Downconverter Block Diagram
2017-95 Manual, Rev 0 Page 3 12/07/09
