Cross Technologies 2009-2425-1750, Инструкция по эксплуатации

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Model 2009-2425-1750 Downconverter
2.40 - 2.50 GHz to 1700 - 1800 MHz
1.0 General
1.1 Equipment Description
The 2009-2425-1750 Downconverter converts a 2.40 - 2.50 GHz signal to 1700 - 1800 MHz
with a low side local oscillator (LO) (non-inverted spectrum). Featuring low phase noise and
high stability, this unit down converts 2.40 - 2.50 GHz signals to 1700 - 1800 MHz. The 2.40 -
2.50 GHz input is mixed with a synthesized local oscillator (LO) signal to 1700 - 1800 MHz.
The mixer output is applied to the output amplifier providing a nominal gain of +10 dB.
Connectors are 75
Ω
type-F (female) for the 1700 - 1800 MHz output and 50
Ω
type-N (female)
for the RF input. Front panel LEDs light when DC power is applied (green) and when a PLL
alarm occurs (red). DC power is provided by the LNB voltage from the receiver under test or by
an external wall mount power supply (option -P4). The 2009 can be mounted on an 1 3/4” X
19” rack mount panel (option -R)
2009 TEST DOWNCONVERTER
C
ROSS
T
ECHNOLOGIES, INC.
DC ALARM J1 J2
J3
RF IN
IF OUT DC POWER
C
ROSS
T
ECHNOLOGIES, INC.
• •
FIGURE 1.1 Front and Rear Panels
1700
to
1800
MHz
OUT
2.40
to
2.50
GHz
IN
0.700 GHz
PLL
2009-2425-1750 Block Diagram
1.75 G
BP
2.45 G
BP
FIGURE 1.2 Block Diagram
2009-2425-1750 Manual, Rev. 0 Page 3 09/05/19