MODEL 2016-03A L-band Downconverter
1.0 General
1.1 Equipment Description
The 2016-03A L-band Downconverter converts 950-1525 MHz to 70 (±18) MHz in 1 MHz steps with low
group delay and flat frequency response. The 2016-03A Input and Output levels have been optimized to support
transmit from an L-band modem to a 70 MHz IF upconverter. Multi-function push button switches select the
RF frequency, gain, and other parameters. Front panel LEDs provide indication of DC power (green), PLL
alarm (red), and remote operation (yellow). The gain is adjustable from 0 to +50 dB. Remote operation allows
selection of frequency and gain. Parameter selection and frequency and gain settings appear on the LCD
display. Standard connectors are BNC female for IF output and the optional external reference input and
reference output, and Type F female for the RF input. LNB +24 VDC, 0.4 Amps and 10 MHz reference can be
inserted on the RF line as added options. The 10 MHz option also includes a 10 MHz output connector, which
contains either the internal or external 10 MHz reference signal. A high stability (±0.01ppm) option is also
available. The unit 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 2016
C
ROSS
T
ECHNOLOGIES INC.
F=1525 G=+25.0
REMOTE
ALARM POWER
DOWNCONVERTER
FRONT
AC
GND
J3
J10
J18
J2
RF IN
10 MHZ REF
10 MHZ
AND
MONITOR
EXT REF
LNB FUSE
F1
CONTROL
J1
IF OUT
OUTPUT
INPUT
DS8
VDC on RF
1
5 2
3
4
6
7
8
9
REAR
FIGURE 1.1 Model 2016-03A Front and Rear Panels
70
MHz
OUT
.95
to
1.52
GHz
IN
.95 to 2 GHz
BP
120 MHz
LP
CONTROLLER
F=1450 G=+25.0
1750 MHz
BP
1680
or
1820
MHz
2.7
to
3.3
GHz
var
atten
10MHz*
+24VDC*
EXT
10MHz*
*OPTIONAL
INT
10MHz
FIGURE 1.2 Model 2016-03A L-band Downconverter Block Diagram
2016-03A Manual, Rev A
Page 3
11/25/08
