1. What is kerchunking?

dropping of hand-held tranceiver into water
spurious interference that overrides your signal
glitches in an automatic repeater
momentary transmissions that activate a repeater

2. What does a squelch squelch

touchtone pulses
transmitter output
receive audio
mobile flutter

3. Subaudible tones are to ____________ to be heard in a repeater's output audio.

quiet
low in frequency
quick
infrequent

4. What is the lowest amateur frequency band on which repeater operation is permitted?

10 meters
160 meters
20 meters
2 meters

5. A crossband repeater operates on two different ______________ ?

amateur bands
modes
FM exciter designs
portions of the same amateur band

6. Repeaters are allowed on which frequencies in the 2-meter band

144.5 to 155.5 MHz
146 to 148 MHz
both (a) and (b)
all frequencies

7. If you're thingking about building a new repeater, who should you contact for advice about frequencies and operating and technical parameters?

frequency coordinator
repeater directory editor
the radio amateur repeater frequency newsgroup on usenet
nobody, just build it

8. From the user's perspective, a repeater supports ____________ operations.

simplex
duplex
backchannel
self-activated

9. Unwanted signals at a repeater input resulting from the mixing of strong local signals are called

whistlers
intermodulation
birdies
LO injection

10. Full quieting implies that what is minimized?

multipath interference
ignition noise
receiver noise
hum

11. TNC stands for

Terminal node controller
Terminate network connection
Terminate network communications
Transmit numeric constants

12. Which specifies the rate at which a packet signal changes states (shift tones) while sending data?

checksum
baud
packet length
retry count

13. Relaying digital signals through another station is called?

full duplex
traffic handling
on-line
digipeating

14. Which of the following protocols are used in packet radio?

AX 25
TCP/IP
both (a) and (b)
none of the above

15. A system of packet stations all connected to a central host on a single frequency and passing DX information to each other in real-time is called a:

packet cluster
BBS
net
pileup

16. A host station to which multiple connections are made is called a:

node
home
DTE
QTH

17. 1,200 baud digital data transmissions are limited to the amateur frequencies above:

14 MHz
28 MHz
144 MHz
1.2 GHz

18. Sending data by shifting the frequency of an audio tone is abbreviated:

MCW
FEC
AFSK
PSK

19. Establishing contact with another packet station is termed:

connecting
routing
accessing
hosting

20. To send a message to a packet station that is not in contact with you, you must know:

the receiving terminal type
the destination address
the receiving TNC manufacturer
the destination station's receiving frequency

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Correct answers: