mirror of
https://github.com/idanoo/nzart-exam-generator.git
synced 2024-12-04 14:23:10 +00:00
266 lines
5.4 KiB
Plaintext
266 lines
5.4 KiB
Plaintext
% FILENAME = N24.TXT
|
|
% Practical Operating Knowledge
|
|
% Release version 2, January 00
|
|
|
|
%QUESTION: 1
|
|
#24.1 You are mobile and talking through a VHF repeater. The other station reports that you keep
|
|
"dropping out". This means:
|
|
|
|
your signal is drifting lower in frequency
|
|
|
|
your signal does not have enough strength to operate the repeater
|
|
|
|
your voice is too low-pitched to be understood
|
|
|
|
you are not speaking loudly enough
|
|
|
|
% ans 2
|
|
|
|
%QUESTION: 2
|
|
#24.2 A "pileup" is:
|
|
|
|
an old, worn-out radio
|
|
|
|
another name for a junkbox
|
|
|
|
a large group of stations all calling the same DX station
|
|
|
|
a type of selenium rectifier
|
|
|
|
% ans 3
|
|
|
|
%QUESTION: 3
|
|
#24.3 "Break-in keying" means:
|
|
|
|
unauthorised entry has resulted in station equipment disappearing
|
|
|
|
temporary emergency operating
|
|
|
|
key-down changes the station to transmit, key-up to receive
|
|
|
|
the other station's keying is erratic
|
|
|
|
% ans 3
|
|
|
|
%QUESTION: 4
|
|
#24.4 A repeater operating with a "positive 600 kHz split":
|
|
|
|
listens on a frequency 600 kHz higher than its designated frequency
|
|
|
|
transmits on a frequency 600 kHz higher than its designated frequency
|
|
|
|
transmits simultaneously on its designated frequency and one 600 kHz higher
|
|
|
|
uses positive modulation with a bandwidth of 600 kHz
|
|
|
|
% ans 1
|
|
|
|
%QUESTION: 5
|
|
#24.5 The standard frequency offset (split) for 2 metre repeaters in New Zealand is:
|
|
|
|
plus 600 kHz above 147 MHz, minus 600 kHz on or below 147 MHz
|
|
|
|
plus 600 kHz below 147 MHz, minus 600 kHz on or above 147 MHz
|
|
|
|
minus 5 MHz below 147 MHz, plus 5 MHz kHz on or above 147 MHz
|
|
|
|
plus 5 MHz below 147 MHz, minus 5 MHz kHz on or above 147 MHz
|
|
|
|
% ans 1
|
|
|
|
%QUESTION: 6
|
|
#24.6 The standard frequency offset (split) for 70 cm repeaters in New Zealand is plus or minus:
|
|
|
|
600 kHz
|
|
|
|
1 MHz
|
|
|
|
2 MHZ
|
|
|
|
5 MHz
|
|
|
|
% ans 4
|
|
|
|
%QUESTION: 7
|
|
#24.7 You are adjusting an antenna matching unit using an SWR bridge. You should adjust for:
|
|
|
|
maximum reflected power
|
|
|
|
equal reflected and transmitted power
|
|
|
|
minimum reflected power
|
|
|
|
minimum transmitted power
|
|
|
|
% ans 3
|
|
|
|
%QUESTION: 8
|
|
#24.8 The "squelch" or "muting" circuitry on a VHF receiver:
|
|
|
|
inhibits the audio output unless a station is being received
|
|
|
|
compresses incoming voice signals to make them more intelligible
|
|
|
|
reduces audio burst noise due to lightning emissions
|
|
|
|
reduces the noise on incoming signals
|
|
|
|
% ans 1
|
|
|
|
%QUESTION: 9
|
|
#24.9 The "S meter" on a receiver:
|
|
|
|
indicates where the squelch control should be set
|
|
|
|
indicates the standing wave ratio
|
|
|
|
indicates the state of the battery voltage
|
|
|
|
indicates relative incoming signal strengths
|
|
|
|
% ans 4
|
|
|
|
%QUESTION: 10
|
|
#24.10 The "National System" is:
|
|
|
|
the legal licensing standard of Amateur operation in New Zealand
|
|
|
|
a series of nationwide amateur radio linked repeaters in the 70 cm band
|
|
|
|
the official New Zealand repeater band plan
|
|
|
|
A nationwide emergency communications procedure
|
|
|
|
% ans 2
|
|
|
|
%QUESTION: 11
|
|
#24.11 A noise blanker on a receiver is most effective to reduce:
|
|
|
|
50 Hz power supply hum
|
|
|
|
noise originating from the mixer stage of the receiver
|
|
|
|
ignition noise
|
|
|
|
noise originating from the RF stage of the receiver.
|
|
|
|
% ans 3
|
|
|
|
%QUESTION: 12
|
|
#24.12 The purpose of a VOX unit in a transceiver is to:
|
|
|
|
change from receiving to transmitting using the sound of the operator's voice
|
|
|
|
check the transmitting frequency using the voice operated crystal
|
|
|
|
enable a volume operated extension speaker for remote listening
|
|
|
|
enable the variable oscillator crystal
|
|
|
|
% ans 1
|
|
|
|
%QUESTION: 13
|
|
#24.13 "VOX" stands for:
|
|
|
|
volume operated extension speaker
|
|
|
|
voice operated transmit
|
|
|
|
variable oscillator transmitter
|
|
|
|
voice operated expander
|
|
|
|
% ans 2
|
|
|
|
%QUESTION: 14
|
|
#24.14 "RIT" stands for:
|
|
|
|
receiver interference transmuter
|
|
|
|
range independent transmission
|
|
|
|
receiver incremental tuning
|
|
|
|
random interference tester
|
|
|
|
% ans 3
|
|
|
|
%QUESTION: 15
|
|
#24.15 The "RIT" control on a transceiver:
|
|
|
|
reduces interference on the transmission
|
|
|
|
changes the frequency of the transmitter section without affecting the frequency of the receiver section
|
|
|
|
changes the transmitting and receiver frequencies by the same amount
|
|
|
|
changes the frequency of the receiver section without affecting the frequency of the transmitter section
|
|
|
|
% ans 4
|
|
|
|
%QUESTION: 16
|
|
#24.16 The "split frequency" function on a transceiver allows the operator to:
|
|
|
|
transmit on one frequency and receive on another
|
|
|
|
monitor two frequencies simultaneously using a single loudspeaker
|
|
|
|
monitor two frequencies simultaneously using two loudspeakers
|
|
|
|
receive CW and SSB signals simultaneously on the same frequency
|
|
|
|
% ans 1
|
|
|
|
%QUESTION: 17
|
|
#24.17 The term "ALC" stands for:
|
|
|
|
audio limiter control
|
|
|
|
automatic level control
|
|
|
|
automatic loudness control
|
|
|
|
automatic listening control
|
|
|
|
% ans 2
|
|
|
|
%QUESTION: 18
|
|
#24.18 The AGC circuit is to:
|
|
|
|
expand the audio gain
|
|
|
|
limit the extent of amplitude generation
|
|
|
|
minimise the adjustments needed to the receiver gain control knobs
|
|
|
|
amplitude limit the crystal oscillator output
|
|
|
|
% ans 3
|
|
|
|
%QUESTION: 19
|
|
#24.19 Many receivers have both RF and AF gain controls. These allow the operator to:
|
|
|
|
vary the receiver frequency and AM transmitter frequency independently
|
|
|
|
vary the low and high frequency audio gain independently
|
|
|
|
vary the receiver's "real" and "absolute" frequencies independently
|
|
|
|
vary the gain of the radio frequency and audio frequency amplifier stages
|
|
independently
|
|
|
|
% ans 4
|
|
|
|
%QUESTION: 20
|
|
#24.20 The term "PTT" means:
|
|
|
|
push to talk
|
|
|
|
piezo-electric transducer transmitter
|
|
|
|
phase testing terminal
|
|
|
|
phased transmission transponder
|
|
|
|
% ans 1
|