circle or the transmission line in frequency charts, or it have a form of a heterodyne
signal in successive spectral analyzers or panoramic receivers.
t
t
t
t
U
МC
f
SG
U
MM
U
OUT
а)
б)
в)
г)
M
(nf1)
M
(n+1)f1
M
(nf1)
M
(n+1)f1
M
(n+1)f1
M
(nf1)
1
()
1
2
nf
+
1
nf
1
()
1
nf
+
Figure 3.2. Time characteristics of signals in individual points of the structural
scheme
The output signal of the swip-generator, in addition, provides to the input of the
stroboscopic mixer (SM).
Two reference generators on quartz resonators (RG1, RG2) through the adder
(ADD) provide a combined reference signal to the second input of the stroboscopic
mixer. The second reference oscillator is turned on or off by the microcontroller.
The product of the transformation of the stroboscopic mixer allocates by a filter
controlled through microcontroller (CF) and provides to the marker maker (MM).
Video pulses from the former come to the microcontroller for further processing.
Due to purpose of determination the frequency of the swip-generator in the circuit
were added quadrator (QD) and low pass filter (LPF).
The information display unit (IDU) displays information about the frequency of
the swip-generator, the frequency scale, the step of frequency marks, the frequency
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