
QM1003-2-18 RF Downconverter
User Manual
2. General Description
The QM1003-2-18 is a RF Downconverter housed in a 1U box. The QM1003-2-18 is controlled either
through the onboard USB or TCP/IP connection. The QM1003-2-18 delivery kit contains a user manual,
power supply, and USB A-male to Micro B cable. A model of the QM1003-2-18 is shown below in Fig. 1.1.
Options 201-400 Left Iso View.jpg
Figure 1.1:
QM1003-2-18 RF Downconverter system
The QM1003-2-18 RF Downconverter has been equipped with Option -100, which adds Local Oscillator
(LO) sources, making the QM1003-2-18 a self contained system, requiring only the externally applied
RF or IF signals for proper operation. Option -200 shifts the IF frequency range from 750-1250MHz
to 50-550MHz. Option -203 shifts the IF frequency range from 750-1250MHz to 2-3GHz. The Local
Oscillators (LOs) in the QM1003-2-18 are locked to a common internal 10 MHz reference. The user has
the option of supplying their own reference through the BNC connector located on the back panel of the
QM1003-2-18.
Quonset Microwave
Revision 0.1.0
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