1B - Automatic Link Establishment (ALE)

Question 1

Automatic Link Establishment (ALE) alleviates the need for radio operators to ___ check frequencies to adjust for changes in the ionosphere (atmospheric conditions), time of day, or interference.

Answer 1

manually

Question 2

Automatic Link Establishment (ALE) alleviates the need for radio operators to manually check frequencies to adjust for changes in the _____.

Answer 2

ionosphere (atmospheric conditions), time of day, or interference

Question 3

ALE automatically selects pre-programed HF channels and links based on their ___.

Answer 3

signal strength

Question 4

LQA develops the channel scores over time based on _____.

Answer 4

Exchanges/Sounds, call successes, and observed traffic.

Question 5

An LQA technique that sends a one-way message on all channels in the channel group.

Answer 5

Sounding

Question 6

An LQA technique that involves two-way messages sent between two stations.

Answer 6

Exchange

Question 7

In order to link on the best channel, ____ are performed.

Answer 7

periodic LQAs

Question 8

Improvements of ALE in 3G compared to 2G:

Answer 8

1) faster linking times
2) more efficiency in signal-to-noise ratios
3) faster data transfer rates

Question 9

What channels does 3G ALE operate on?

Answer 9

100-162

Question 10

What channels does 3G+ in ALE use?

Answer 10

1-62