Element 7: GMDSS Radio Operating Practices

effective 8/01/2006

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7-A-028: DSC Frequencies

7-28D1: Which of the following is not a DSC watch frequency?

2182.0 kHz

2187.5 kHz

6312.0 kHz

12577.0 kHz



7-28D2: Which of the following channels and modes should be used when initiating a Distress alert transmission?

Ch-70 DSC

Ch-6 DSC

Ch-6 Radiotelephony

Ch-13 Radiotelephony and Ch-16 DSC



7-28D3: How many total frequencies are available for DSC Distress alerting?

Seven

One

Two

Five



7-28D4: Which of the following watches must a compulsory Sea Area A1 vessel maintain?

A continuous DSC watch on Ch-70.

A continuous DSC watch on 8414.5 kHz plus one other HF DSC frequency.

A continuous DSC watch on 2187.5 kHz

A continuous DSC watch on Ch-16.



7-28D5: Which of the following are the MF/HF DSC Distress watch frequencies

2187.5, 4207.5, 6312.0, 8414.5, 12577.0, 16804.5

2177.5, 4210.0, 6314.0, 8416.5 12579.0, 16806.5

2182.0, 4125.0, 6215.0, 8291.0, 12290.0, 16420.0

2174.5, 4177.5, 6268.0,8376.5, 12520.0, 16695.0



7-28D6: How many HF DSC Distress watch channels must be guarded by a compulsory vessel underway.

2

3

4

6





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7-A-027: DSC Operations
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Element 7: GMDSS Radio Operating Practices
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7-A-029: Sending a Distress Alert