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Forum: Electrics and electronics

05 August 2007, 18:17

Replies: 23

Range of VHF

Views: 4,626

Posted By peterb

Each MRCC (Coastguard Ops Room) controls a number...

Each MRCC (Coastguard Ops Room) controls a number of aerials along their stretch of coastline.

When a call comes in, they have to switch to the best aerial before transmitting their reply.

Forum: Electrics and electronics

03 August 2007, 22:19

Replies: 23

Range of VHF

Views: 4,626

Posted By peterb

Its a bit late to work it out - but since they...

Its a bit late to work it out - but since they can receive from 30nm - its a long way up in the air!

Forum: Electrics and electronics

03 August 2007, 20:23

Replies: 23

Range of VHF

Views: 4,626

Posted By peterb

I hesitated to use the word "guarantee" before...

I hesitated to use the word "guarantee" before the 30nm - but that is their GMDSS requirement for A1.

And yes, when there is high pressure the blasted VHF signals go bouncing along a very great...

Forum: Electrics and electronics

03 August 2007, 19:58

Replies: 23

Range of VHF

Views: 4,626

Posted By peterb

HM CG in the UK will be able to hear 25w...

HM CG in the UK will be able to hear 25w transmissions from within 30m of the coastline.

This is known as area A1 in the GMDSS defined area of responsibility for the UK Coastguard Agency.

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