a.
c.
channel capacity.
b.
sensitivity.
d.
15. The frequencies generated by the SBM-1102 are connected to the AN/FRR-41
system through the use of
a.
c.
b.
d.
16. The phase comparator subassembly (B1, fig.
2-2) determines the accuracy
of the receiver system by comparing the 100-kHz received carrier frequency with the
highly stable
a.
17-MHz frequency.
b.
390- to 399-kHz frequency.
c.
100-kHz reference frequency.
d.
2.455- to 3.455-MHz output frequency.
17. How does the operator know when he has selected the right conversion
frequencies for the signal being received?
a.
The fine tuning control is set at midpoint of its scale.
b.
The output voltage developed by the phase comparator is zero.
c.
The frequency counter shows the frequency of the signal that the receiver
is receiving.
d.
The reference oscillators are synchronized to precisely the same frequency
and phase.
18. The reason for having a manually adjustable reference frequency in this
kit is to compensate for
a.
change in oven temperature.
b.
transmitter frequency drift.
c.
drift of receiver conversion frequencies.
d.
aging of the reference oscillator crystal.
19. The oscillator that can be manually tuned if there is a drift in the
received signal is the
a.
100-kHz oscillator.
c.
1-MHz RF oscillator.
b.
555-kHz oscillator.
d.
9- to 17-MHz oscillator.
327 L2
26
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