SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep
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Fig. 14-11 Single Cable – Split Band Network Reverse
Sweep Configuration With Bi-Directional Test Points.
Systems with directional test points are set up as shown in Figure 14-11. The
directional coupler on the input side should be designed for at least the
frequency range of the forward bandwidth of the network under test. (This
coupler network should never be connected to the system without the SDA-
5000 attached, or the resulting lack of isolation might cause signals from the
forward path to bleed over to the reverse path.)
Dual Cable Network
Another possible, though rare, network configuration is the dual cable
network, in which a full bandwidth is used for both forward and reverse path
signals (see Fig. 14-12). In other words, it consists of essentially two cable
systems overlaying each other with signals carried in opposite directions.
Two cables can be used to sweep this type of system in both directions with
the same setup. A sample setup is shown in Figure 14-12.
SDA-5500 or
SDA-5510
SDA-5000
out
in
outin
Combining
Network
Distribution Amplifiers
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