MODEL 2016-57 Downconverter
1.0 General
1.1 Equipment Description
The 2016-57 Downconverter converts 5.845 to 6.725 GHz to 70 ± 18 MHz in 125 kHz steps (1 kHz steps,
option X1005) with low group delay and flat frequency response. Synthesized local oscillators (LO) provide
frequency selection with ±0.01 ppm stability. 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). Gain is adjustable manually over a +30 to +50 dB range by the front panel push-button switches.
Remote M&C allows selection of the 10 MHz reference, frequency and gain. Parameter selection and
frequency and gain settings appear on the LCD display. Connectors are BNC (female) for IF output and the
10MHz reference input and output, and Type N (female) for the RF input (other connector configurations
available). A 10 MHz output connector contains either the internal or external 10 MHz reference signal. The
unit is powered by a 100-240 ±10% VAC power supply, and housed in a 1 3/4” X 19“ X 16” rack mount
chassis.
MENU
EXECUTE
MODEL 2016
C
ROSS
T
ECHNOLOGIES INC.
REMOTE
POWER
ALARM
DOWNCONVERTER
F = 5950.125
G = +30.0
FRONT
AC
GND
J3
J10
J18
J2
RF IN
10 MHZ REF
OUTPUT
10 MHZ
EXT REF
INPUT
MONITOR
AND
CONTROL
J1
IF OUT
1
5 2
3
4
6
7
8
9
REAR
FIGURE 1.1 Model 2016-57 Front and Rear Panels
5.845
to
6.725
GHz
IN
70
MHz
OUT
CONTROLLER
F=5950.125
G=+30.0
VAR
ATT
EXT
10 MHz
VAR
ATT
INT
10 MHz
Block Diagram
FIGURE 1.2 Model 2016-57 Downconverter Block Diagram
2016-57 Manual, Rev 0.
Page 3
7/14/20
