MODEL 2005-10 Test Upconverter
1.0 General
1.1 Equipment Description
The 2005-10 Test Upconverter converts a 70 MHz or 140 MHz IF signal to 2000 to 2500 MHz in 1 MHz steps
with selection of high side LO (C = inverted) or low side LO (Ku = non-inverted) and 70 or 140 MHz input
over the 2.0 - 2.5 GHz range.
Featuring low phase noise, these units are used to loop 70 or 140 MHz modulators to 2.0 - 2.5 GHz receivers
for test purposes. The 70 or 140 MHz carrier input is mixed with a synthesized local oscillator (LO) signal.
The output frequency is selected with four BCD switches which control the synthesized LO. Front panel
LEDs light when DC power is applied (green) and when a PLL alarm occurs (red). The mixer output is
applied to the output attenuator providing a nominal gain of -10 dB (high gain) or -30 dB (low gain).
Connectors are 50
Ω
BNC (female) for the IF input and for the RF output (other connector options are
available).
Wall power supply options are
-P
for 120 VAC, 60Hz, and
-P4
is 100-240 ±10% VAC.
The 2005 can be mounted on a 1 3/4” X 19 “ rack mount panel (
option -R
).
2000
to
2500
MHz OUT
70
or
140
MHZ IN
1860
to
2640
MHz
ATTEN
2. 3
3
8
CONTROLLER
FIGURE 1.1 Block Diagram
DC ALARM
C
ROSS
T
ECHNOLOGIES, INC.
2005 TEST CONVERTER
C
KU
LO
70 140
IF
FREQUENCY
GHz
1MHz
10MHz
100MHz
C
ROSS
T
ECHNOLOGIES, INC.
DC POWER
RF
IF
GAIN
HI LOW
J1
J3
J2
FIGURE 1.2 Front and Rear Panel
2005-10 Manual, Rev. B
Page 3
4/28/09
