7-A-082: MF-HF: Voice & TELEX Channel Separation
7-82J1:
Which statement regarding bandwidth and channel spacing is correct:
Channel spacing values are a function of bandwidth values.
Bandwidth values are a function of channel spacing values.
Channel spacing values are not a function of bandwidth values.
Bandwidth & channel values do not vary with emission mode.
7-82J2:
The purpose of ITU channel spacing is:
To minimize the possibility of interference from adjacent channels.
To maximize the number of voice & TELEX channels available.
To make most efficient use of the radio spectrum, by using voice channels rather than TELEX channels.
To make most efficient use of the radio spectrum, by using TELEX channels rather than voice channels.
7-82J3:
Which statement regarding channel spacing and bandwidth is true?
Both TELEX bandwidth and channel spacing values are less than voice bandwidth and channel spacing values.
Voice bandwidth is greater than TELEX bandwidth and therefore voice channel spacing values are less than TELEX channel spacing values.
TELEX bandwidth is greater than voice bandwidth and therefore TELEX channel spacing values are less than voice channel spacing values.
Both TELEX bandwidth and channel spacing values are greater than voice bandwidth and channel spacing values.
7-82J4:
The proper sequence of channel spacing from narrow to widest is:
NBDP SITOR, SSB-voice, VHF-FM voice.
SSB voice, NBDP SITOR, VHF-FM voice.
VHF-FM voice, NBDP SITOR, SSB-voice.
NBDP SITOR, VHF-FM voice, SSB-voice.
7-82J5:
Communications with an emission of F1B/J2B would typically have a channel spacing of:
0.5 kHz
0.3 kHz
2.8 kHz
3.0 kHz
7-82J6:
Communications with an emission of J3E would typically have a channel spacing of:
3.0 kHz
0.5 kHz
0.3 kHz
2.8 kHz
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Color key:
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● = Incorrect answer
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