Contents
T8D[]
The T8D section covers non-voice communications; image data, digital modes, CW, packet, PSK31.
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T8D01
- Which of the following is an example of a digital communications method?
- Packet
- PSK31
- MFSK
- All of these choices are correct
T8D02
- What does the term APRS mean?
- Automatic Position Reporting System
T8D03
- Which of the following is normally used when sending automatic location reports via amateur radio?
- A Global Positioning System receiver
T8D04
- What type of transmission is indicated by the term NTSC?
- An analog fast scan color TV signal
T8D05
- Which of the following emission modes may be used by a Technician Class operator
between 219 and 220 MHz?
- Data
T8D06
- What does the abbreviation PSK mean?
- Phase Shift Keying
T8D07
- What is PSK31?
- A low-rate data transmission mode
T8D08
- Which of the following may be included in packet transmissions?
- A check sum which permits error detection
- A header which contains the call sign of the station to which the information is being sent
- Automatic repeat request in case of error
- All of these choices are correct
T8D09
- What code is used when sending CW in the amateur bands?
- International Morse
T8D10
- Which of the following can be used to transmit CW in the amateur bands?
- Straight Key
- Electronic Keyer
- Computer Keyboard
- All of these choices are correct
T8D11
- What is a "parity" bit?
- An extra code element used to detect errors in received data