Cross Technologies 2017-93, Instruction Manual

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MODEL 2017-93 Up/Downconverter
1.0 General
1.1 Equipment Description
The 2017-93 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. 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 is manually controlled over a -10.0 to
+30.0 dB range for the upconverter (in 0.1 dB steps) and over a 0 to +50 dB range for the downconverter (in 1
dB steps) 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 10 MHz external reference input and output, and Type F female for
RF. LNB +24 VDC (down) and SSPB +24 VDC (up) are inserted on the RF lines when the corresponding rear
panel fuse is installed. The 10 MHz reference is also inserted on the RF lines. A high stability (±0.01ppm)
option is available. Powered by a 100-240 ±10% VAC power supply and housed in a 1.75” X 19“ X 16” rack
chassis.
MENU
EXECUTE
MODEL 2017
C
ROSS
T
ECHNOLOGIES INC.
U F=1525 G=+10.2
D F=1525 G=+25.0
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
6 7 8 9
REAR PANEL
Figure 1.1 Model 2017-93 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 2 GHz
BP
120 MHz
LP
CONTROLLER
U F=1525 G=+00.0
D F=1450 G=+25.0
.95 -2 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
var
atten
var
atten
INT
10MHz
Figure 1.2 Model 2017-93 Up/Downconverter Block Diagram
2017-93 Manual, Rev D Page 3 05/19/10