Figure 7 Using SDG-800 series function generators to provide swept frequency and scope triggering. On the left side of this diagram is a block labeled sweep generator. SDG-800 series. On the right is another block labeled D S O for digital storage oscilloscope. Between the sweep generator and the D S O is an I F transformer consisting of two air wound coils that are close together indicating they are magnetically coupled. Resonating capacitors are not shown but they are assumed to be present. The channel output of the sweep generator is shown with two wires. One of them is ground. The ground wire from the sweep generator goes to a ground symbol indicating that the transformer shield can is connected to the generator ground. The ground also connects to the lower end of the primary winding of the transformer. The ground wire also connects to the bottom end of the secondary. The ground wire continues on to connect to the ground of the D S O. The hot side of the channel output of the generator goes to one end of a 470 k ohm resistor. The other end of this resistor connects to the upper end of the primary. The upper end of the primary also goes to the hot side of the channel two input of the DSO. The upper end of the secondary connects to the hot side of the channel one input of the D S O. The upper end of the secondary also connects to one end of another 470 k ohm resistor. The other end of the resistor connects to the bottom end of the secondary. Although a single wire is shown, the two connections to the DSO are presumed to be made by means of times ten probes each with its own ground. The Sync out/ext trig connector on the generator goes to the ext trig input of the scope. This connection is made by a coaxial cable with a BNC connector on each end. The settings of the generator will cause the sync out/ext trig connector to output a 50 ns wide, 5 volt high pulse. End of verbal description.
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