Cross Technologies 2017-03A, Instruction Manual

Page: 3 / 21

MODEL 2017-03A Up/Downconverter
1.0 General
1.1 Equipment Description
The 2017-03A L-band Up/Downconverter converts 70 MHz to 950-1525 MHz (Up) and 950-1525 MHz to 70
MHz (Down) in 1 MHz steps with low group delay and flat frequency response. The 2017-03A has lower RF
level out of the upconverter and higher RF level into the downconverter than the 2017-03 and is typically used
to interface an L-band modem to a 70 MHz IF upconverter and downconverter. 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 adjusted over a -25 to +15 dB range for the upconverter and over a 0 to +50 dB
range for the downconverter 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. 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
C
ROSS
T
ECHNOLOGIES INC.
U F=1525 G=+00
D F=1525 G=+25
MUTE
UPCONVERTER DOWNCONVERTER
REMOTE ALARM POWER
ALARM
UP/DOWNCONVERTER
FRONT PANEL
AC
UPCONVERTER
RF OUT SSPB FUSE
GND
DOWNCONVERTER
J4 J5 J3 J18 J2
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
1 5 2 3 4
9
6
7 8
REAR PANEL
Figure 1.1 Model 2017-03A Front and Rear Panels
70
MHz
OUT
.95
to
1.525
GHz
IN
1750 MHz
BP
1820
MHz
2.7
to
3.3
GHz
.95 to 1.525 GHz
BP
120 MHz
LP
CONTROLLER U F=1525 G=+00.0
D F=1450 G=+25.0
.95 -1.525 GHz
BP
70
MHz
IN
.95
to
1.525
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 2017-03A Up/Downconverter Block Diagram
2017-03A Manual, Rev. I Page 3 07/22/19