Teledyne LeCroy UWBTracer User Manual - Manual (Page 187)

UWBTracer/Trainer User Manual Chapter 11: Setting Up for Recording
LeCroy Corporation
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Wired RF Recording
Wired RF Recording can be used when the test setup requires isolation from external RF
interference or when the effects of the antennas need to be negated. In this setup, coaxial
cables are used to connect the analyzer to the devices under test.
To match the transmit power of the radios to the receive power ratings (because
low-impedance wires are now used), use attenuators to lower the signal strength so that
the input stages of the PHYs are not saturated (Figure 11.4). The –20 dB attenuators are
given as an example. You might need to use different attenuators depending on the
characteristics and signal strength of the radios in use.
Figure 11.4 Wired RF Recording
Note: The attenuator values shown are only examples. You may need to
use different values according to the PHYs used, their signal
strengths, and your setup.