Jump to content

VHF and 27mhz radios


Recommended Posts

Hi Raiders, 

I have recently bought a 2nd hand boat and it came with both a 27mhz and VHF radio. Is there a reason to have both or can I just run the VHF and same some dash space. The 27mhz doesn't seem to be working properly so it will need some TLC. 

 

Cheers 

Link to post
Share on other sites

There are several reasons NOT to use the 27MHz...

they are only 4 watts (VHF is 25W)

They are AM and subject to interference (VHF is FM)

27M is subject to atmospheric conditions that do strange things.  I'm in Adelaide, on one occassion on the water I could not reach a mate that I could see on the horizon... I could however talk to a bloke on Moreton Bay...

Marine Rescue is considering not monitoring 27M.  VHF is an international safety standard and is monitored 24/365.25

  • Thanks 1
Link to post
Share on other sites

when i originally fitted out my boat back in 2011 i operated on the theory of redundancy- so i have a VHF and a 27- ive never actually used the 27 but its there- i also have 2 bilge pumps, extra rope, 2 batteries - actually 4 now with the electric motor, 2 screens both of which can be used as gps and sounder, two transducers- you get the picture- having back up is a good idea, if the 27 works leave it there, if it doesnt have a think about it.

Link to post
Share on other sites
2 hours ago, PaddyT said:

when i originally fitted out my boat back in 2011 i operated on the theory of redundancy- so i have a VHF and a 27- ive never actually used the 27 but its there- i also have 2 bilge pumps, extra rope, 2 batteries - actually 4 now with the electric motor, 2 screens both of which can be used as gps and sounder, two transducers- you get the picture- having back up is a good idea, if the 27 works leave it there, if it doesnt have a think about it.

Nothing wrong with being safe-- instead of 27M (I took mine out) I carry a hand-held VHF too.

Link to post
Share on other sites

I still have both and there have been occasions with the VHF particularly in the Crookhaven river where i haven't been able to reach VMR Shoalhaven to sign off and have just jumped on the 27meg and its worked perfectly. On this 27meg dies though ill just run a second VHF

Link to post
Share on other sites

yep plenty of blind spots in radio coverage but MR still monitor 27 ""unofficially "" . But first trip out get a radio check with both .

  • Like 1
Link to post
Share on other sites
9 hours ago, Blade said:

The 27mhz doesn't seem to be working properly so it will need some TLC. 

Good points above, its does pay in most situations to have a back up.

I know when I go bush I have 2 or 3 uhf's, 2 GPS's plus paper maps etc.

What are the issues your having with the 27mhz?

Could be bad aereal connection if your getting static?

Edited by kingie chaser
  • Thanks 1
Link to post
Share on other sites

Old boat had both new boat didn't. I didn't bother moving the 27mHz.

The fishing club use 27mHz for chatting and you don't need a license for it. VHF you need a license if you want to use DSC, and to use DSC you need an MMSI, and to get an MMSI, you need a license. Marine Radio License

I also take a handheld VHF that floats. As mentioned above, if its working leave it, if its not, I wouldn't bother replacing it, thow it out and put in another sounder. Take your mobile with you, it will most likely work where ever you are fishing, up to a few KM offshore

 

 

  • Like 1
  • Thanks 1
Link to post
Share on other sites
3 hours ago, kingie chaser said:

Good points above, its does pay in most situations to have a back up.

I know when I go bush I have 2 or 3 uhf's, 2 GPS's plus paper maps etc.

What are the issues your having with the 27mhz?

Could be bad aereal connection if your getting static?

It just seems to not pick anything up I leave it on scan and it runs for ages then all of a sudden its onto something for a couple of seconds then gone.

Link to post
Share on other sites
13 minutes ago, Blade said:

It just seems to not pick anything up I leave it on scan and it runs for ages then all of a sudden its onto something for a couple of seconds then gone.

Imo the 2 main things to check would be the ground wire & the antenna connection to the back of the radio.

If either or both have a bad connection your signal strength will be weakened or interrupted. 

@zmk1962 is very good with 12V electrical so maybe he could offer another opinion on it?

Edited by kingie chaser
  • Thanks 1
Link to post
Share on other sites

Also check that you don’t have squelch cranked up. Turn it back until you hear noise. Then increment forward until the noise just disappears. 
cheers Zoran 

  • Like 2
  • Thanks 1
Link to post
Share on other sites
5 minutes ago, kingie chaser said:

@zmk1962 is very good with 12V electrical so maybe he could offer another opinion on it?

Hey my ears must have been ringing! .. and I don’t run on 12V! 

Link to post
Share on other sites

Will give the above a go and see if it makes a difference.

The VHF is a Lowerance and my sounder is too, I have the cable to link them so hoping to do that as well

 

Link to post
Share on other sites
26 minutes ago, zmk1962 said:

Hey my ears must have been ringing! .. and I don’t run on 12V! 

Ok, my mistake then!

Didn't say you run on 12V just implied you knee about it.

Edited by kingie chaser
  • Haha 1
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Forum Statistics

    • Total Topics
      66,667
    • Total Posts
      539,432
×
×
  • Create New...