2182 kHz is the international radiotelephone distress frequency. It is also used for a calling channel. The authorized mode of emission is H3E (single-sideband full carrier). A3E (double-sideband full carrier) is only authorized for equipment:
A
Solely intended for distress and safety communications
B
Built and sold after the GMDSS implementation date
C
Built and sold before the GMDSS implementation date
D
Solely intended for ship-to-shore public correspondence
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Question 1 / 20ud5CzVRmcFy8DKIcTiE1
Question 1 of 20ud5CzVRmcFy8DKIcTiE1
2182 kHz is the international radiotelephone distress frequency. It is also used for a calling channel. The authorized mode of emission is H3E (single-sideband full carrier). A3E (double-sideband full carrier) is only authorized for equipment:
2182 kHz is the international radiotelephone distress frequency. It is also used for a calling channel. The authorized mode of emission is H3E (single-sideband full carrier). A3E (double-sideband full carrier) is only authorized for equipment: