NZART Amateur Examination                     page 8          NZARTX07 Security code 270029

  1. The "National System" is:
    1. the legal licensing standard of Amateur operation in New Zealand
    2. a series of nationwide amateur radio linked repeaters in the 70 cm band
    3. the official New Zealand repeater band plan
    4. A nationwide emergency communications procedure

  2. The "RIT" control on a transceiver:
    1. reduces interference on the transmission
    2. changes the frequency of the transmitter section without affecting the frequency of the receiver section
    3. changes the transmitting and receiver frequencies by the same amount
    4. changes the frequency of the receiver section without affecting the frequency of the transmitter section

  3. The "Q" signal "are you busy?" is:
    1. QRM?
    2. QRL?
    3. QRT?
    4. QRZ?

  4. Any length of transmission line may be made to appear as an infinitely long line by:
    1. shorting the line at the end
    2. leaving the line open at the end
    3. terminating the line in its characteristic impedance
    4. increasing the standing wave ratio above unity

  5. This type of transmission line will exhibit the lowest loss:
    1. twisted flex
    2. coaxial cable
    3. open-wire feeder
    4. mains cable

  6. The physical length of the antenna shown in this diagram can be shortened and the electrical length maintained, if one of the following items is added at the points shown at 'X' in each wire:
    1. an inductor
    2. a capacitor
    3. an insulator
    4. a resistor

  7. A dummy antenna:
    1. attenuates a signal generator to a desirable level
    2. provides more selectivity when a transmitter is being tuned
    3. matches an AF generator to the receiver
    4. duplicates the characteristics of an antenna without radiating signals
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