Radio Coverage for up to 100km off Perth Waters

 Hi guys,


I recently found out that a VHF radio at best might have communication with Sea Rescue up to 15km out. Is this correct and what radio would work for say up to 100km if you needed assistance??


Is UHF any better??

pelagicyachts's picture

Posts: 865

Date Joined: 23/02/11

HF and you will need a long

Fri, 2018-10-26 13:32

and you will need a long (tall/high) whip
They are a lot cheaper than they used to be but not cheap! Keep an eye out on gumtree - they come up every now and then.

Out of interest - what are you doing 100km offshore...? Rottnest trench is about 45kms - just deep water after that :-)

Posts: 22

Date Joined: 08/07/14

Thanks for that actuall just

Sat, 2018-10-27 10:26

Thanks for that actuall just interested really as the furthest I’ve been out is about 50km out from Mandurah . I don’t intend on going further than that but was curious what you need to do


thanks  for all the replies 

Posts: 24

Date Joined: 12/04/16

You will need a HF set for

Fri, 2018-10-26 13:33

You will need a HF set for that far out

carnarvonite's picture

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Date Joined: 24/07/07

Channel 81

Fri, 2018-10-26 16:23

Try channel 81 repeater on Rottnest Island, that should give you coverage out another 25nm further out

Tim's picture

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Date Joined: 26/09/06


Fri, 2018-10-26 17:36


Its not that good.

We run Billfish tournaments at the trench and can struggle to get coverage much past the fads at times.

The repeater isnt in the best spot to cover out there. If it was moved it might be better

Posts: 5047

Date Joined: 17/06/10

I think that you will need

Fri, 2018-10-26 17:24

A special licence to operate a HF radio set which will mean you will have to go and do a TAFE course, could be wrong but I don't think your VHF licence is going to cover the operation of a HF set.

Posts: 559

Date Joined: 27/08/09

 Yes to opperate a HF set you

Fri, 2018-10-26 17:35

 Yes to opperate a HF set you need what was the MROCP or now called the long range operarors certificate LROCP. On top of this you need apply for a ship station license which attracts a yearly fee.

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Date Joined: 01/02/10

mrocp covers hf.So if you are

Fri, 2018-10-26 18:33

mrocp covers hf.

So if you are have you vhf licence you are covered for hf as well.  


Does anyone know where the love of god goes, when the waves turn the minutes to hours?

Dale's picture

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Date Joined: 13/09/05

Sat, 2018-10-27 10:38


"Just because you are a Character, Doesn't mean you have Character."

Mr Wolf



Swompa's picture

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 Yep, HF with a 20ft whip or

Fri, 2018-10-26 19:34

 Yep, HF with a 20ft whip or a Sat phone.

scubafish's picture

Posts: 552

Date Joined: 15/08/12

whitfords sea rescue VJ6LQ

Sat, 2018-10-27 09:56

No reported problem with the repeater this morning ,call's taken from thomson bay were ok.Would suggest anyone going out to the fad's/trench do a radio test call to check and if there is a problem they can fix it.Hate to think with Summer coming and offshore breezes you would have a engine problem and drift off to Madagascar,cant anchor out there.


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Date Joined: 08/07/14

 Would the Rottnest repeated

Sat, 2018-10-27 10:28

 Would the Rottnest repeated pick me up out of Mandurah ?? 

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Date Joined: 23/04/14

VHF 82

Sun, 2018-10-28 16:43

 If you’re going out of Mandurah you’ll be better off trying the Pinjarra repeater on VHF 82.  




scubafish's picture

Posts: 552

Date Joined: 15/08/12

As the old saying goes

Sat, 2018-10-27 10:43

Would suggest next time your out do a test call.But in saying that your direct line of comm's would probably be to Call Sign: VMR 611 .