Transmitter interference
Explanation of question 15
- i A parasitic oscillation may be caused by a
resonant length of wire
- ii Parasitic oscillations may cause instability
and distortion
- i and ii are both true
- i is true but ii is false
- i is false but ii is true
- i and ii are both false
The answer is :- 1A resonant length of wire could be the cause
of a parasitic oscillation at v.h.f. or u.h.f. A practical
solution may be the use of an r.f. choke, resistor or ferrite
beads. Instability and distortion are two possible effects of
parasitic oscillations.