AWQ VHF radio

skronkman
Rank: Premium Member
Rank: Premium Member
Posts: 517
Joined: Tue Oct 28, 2014 8:59 pm

Re: AWQ VHF radio

Postby skronkman » Sun Mar 12, 2017 5:36 am

Wolly Bugger wrote:
skronkman wrote:I dont think there is a UHF marine radio? I could be wrong but I thought all the UHF Radios in the shops were terrestrial, like for 4x4 etc...... Are you referring to 27MHz?


The UHF for marine use is the 27 meg, however the use of the VHF radio is perhaps better with a greater range.


27MHz is actually in the HF band (3-30MHz) and not the UHF band (300MHz-3GHz). I think any mention of UHF in conjunction with marine radio purposes here is just confusing for people.

27MHz is similar to terrestrial based 40 channel CB radios we had in the 80's but the actual marine channels are different different and a 27MHz marine radio cannot communicate with a "CB" radio.



Remove these ads.

Wolly Bugger
Moderator
Moderator
Posts: 3986
Joined: Sun Mar 06, 2011 5:25 pm

Re: AWQ VHF radio

Postby Wolly Bugger » Sun Mar 12, 2017 7:53 am

skronkman wrote:
Wolly Bugger wrote:
skronkman wrote:I dont think there is a UHF marine radio? I could be wrong but I thought all the UHF Radios in the shops were terrestrial, like for 4x4 etc...... Are you referring to 27MHz?


The UHF for marine use is the 27 meg, however the use of the VHF radio is perhaps better with a greater range.


27MHz is actually in the HF band (3-30MHz) and not the UHF band (300MHz-3GHz). I think any mention of UHF in conjunction with marine radio purposes here is just confusing for people.

27MHz is similar to terrestrial based 40 channel CB radios we had in the 80's but the actual marine channels are different different and a 27MHz marine radio cannot communicate with a "CB" radio.


It should also be noted that the VHF must meet Australian regulations, if for example someone imports one from the US to save a buck, there will be some different frequencies that could possibly interfere with police or ambulance radio's,

skronkman
Rank: Premium Member
Rank: Premium Member
Posts: 517
Joined: Tue Oct 28, 2014 8:59 pm

Re: AWQ VHF radio

Postby skronkman » Sun Mar 12, 2017 8:34 am

Wolly Bugger wrote:
skronkman wrote:
Wolly Bugger wrote:
skronkman wrote:I dont think there is a UHF marine radio? I could be wrong but I thought all the UHF Radios in the shops were terrestrial, like for 4x4 etc...... Are you referring to 27MHz?


The UHF for marine use is the 27 meg, however the use of the VHF radio is perhaps better with a greater range.


27MHz is actually in the HF band (3-30MHz) and not the UHF band (300MHz-3GHz). I think any mention of UHF in conjunction with marine radio purposes here is just confusing for people.

27MHz is similar to terrestrial based 40 channel CB radios we had in the 80's but the actual marine channels are different different and a 27MHz marine radio cannot communicate with a "CB" radio.


It should also be noted that the VHF must meet Australian regulations, if for example someone imports one from the US to save a buck, there will be some different frequencies that could possibly interfere with police or ambulance radio's,


Hey Wolly,
Can you please send me a source for this. I believe that the frequencies used for the channels are managed by the ITU and are standard internationally. The channel use might be different by region (even within the same country but 16 is always distress) but the radios should be electronically the same. If this were not the case then boats arriving in Australia from international locations would be unable (and illegal) to use their marine VHF. I'm happy to be corrected but I fear this may be misinformation pedaled by local retailers as an excuse to cover high margins and the "Australia tax".

Wolly Bugger
Moderator
Moderator
Posts: 3986
Joined: Sun Mar 06, 2011 5:25 pm

Re: AWQ VHF radio

Postby Wolly Bugger » Sun Mar 12, 2017 9:56 am

skronkman wrote:It should also be noted that the VHF must meet Australian regulations, if for example someone imports one from the US to save a buck, there will be some different frequencies that could possibly interfere with police or ambulance radio's,


Hey Wolly,
Can you please send me a source for this. I believe that the frequencies used for the channels are managed by the ITU and are standard internationally. The channel use might be different by region (even within the same country but 16 is always distress) but the radios should be electronically the same. If this were not the case then boats arriving in Australia from international locations would be unable (and illegal) to use their marine VHF. I'm happy to be corrected but I fear this may be misinformation pedaled by local retailers as an excuse to cover high margins and the "Australia tax".


Firstly it is not pedaled by the local retailers, I learnt it during my course. I'll see if I can find a reference online.

Wolly Bugger
Moderator
Moderator
Posts: 3986
Joined: Sun Mar 06, 2011 5:25 pm

Re: AWQ VHF radio

Postby Wolly Bugger » Sun Mar 12, 2017 10:00 am

Certain frequency are allocated to particular services, for example police have the frequencies that they use reserved for their use. The same goes for ambulance, military etc.

http://www.acma.gov.au/~/media/Spectrum ... %20pdf.pdf

Wolly Bugger
Moderator
Moderator
Posts: 3986
Joined: Sun Mar 06, 2011 5:25 pm

Re: AWQ VHF radio

Postby Wolly Bugger » Sun Mar 12, 2017 10:03 am

http://www.offshoreblue.com/communications/vhf-au.php

There is a list below that gives what other frequencies are used by other countries



Remove these ads.

Wolly Bugger
Moderator
Moderator
Posts: 3986
Joined: Sun Mar 06, 2011 5:25 pm

Re: AWQ VHF radio

Postby Wolly Bugger » Sun Mar 12, 2017 10:08 am

http://www.typeapproved.com.au/

[quote]The use and (sometimes) possession of radiocommunications equipment not specifically designed to comply with Australian standards may be illegal. There are severe penalties for operation, possession for the purpose of operation and supply of radiocommunications equipment that does not comply with applicable Australian standards.[quote/]

Wolly Bugger
Moderator
Moderator
Posts: 3986
Joined: Sun Mar 06, 2011 5:25 pm

Re: AWQ VHF radio

Postby Wolly Bugger » Sun Mar 12, 2017 10:12 am

International ships, boats, yachts all carry and use MF/HF radios as well.

User avatar
adamk
Rank: Premium Member
Rank: Premium Member
Posts: 745
Joined: Sat Feb 07, 2015 3:48 am
Location: laverton

Re: AWQ VHF radio

Postby adamk » Sun Mar 12, 2017 2:21 pm

skronkman wrote:
adamk wrote:Only uhf marine band. Other the is the scumbags if cb an not worth using.


I've never heard of this. after a google search though, it is used on large ships between members of the crew or something, like handheld walkie talkies (similar to security guards in a shopping mall). It's not a marine band used in Australia for boat to boat or boat to land transmissions that I can tell. No mention of it on any of the Australian maritime websites. We use 27MHz (technically HF) and VHF radios for general use. The is also HF but it is uncommon for small non ocean going vessels.

I think any mention of UHF for marine use only confuses people.



exactly, but thats the closest to uhf used on boats is that an tug frequencys i use to listen to both from home current house dont allow antennas so its handhold or nothing lol, shame really as i liked monitoring distress channels an tended to hear better then the coast guards

skronkman
Rank: Premium Member
Rank: Premium Member
Posts: 517
Joined: Tue Oct 28, 2014 8:59 pm

Re: AWQ VHF radio

Postby skronkman » Sun Mar 12, 2017 2:35 pm

Thanks wolly. Im always suspicious when im told by a retailer that i cant buy it on ebay for half the price from america for reason x,y or z. In this case it appears im wrong. Whilst the ITU do manage the spectrum for vhf marine radio it appears many countries bastardise it for local use and are only 99% compatible with eachother. Whilst you may be able to use a foreign bought radio in australia and do most things, there may be a channel or 2 you cant access or a few channels you can access that you are not alowed to broadcast on legally in australia.

This is news to me and im happy to have learnt something today. Having spent time on foreign registeted vessels in australia with foreign radios installed this was never an issue in practical usage. It appears its legal to use them temporarily while in country as long as you avoid broadcasting on channels not used in australia.

All interesting stuff (to me at least).

I found this site with very specific info on this exact subject http://marine-electronics-reviews.com/m ... adios.html

Thanks again for taking the time to inform me with the details.



Remove these ads.


Return to “Marine Electronics”

Who is online

Users browsing this forum: No registered users and 1 guest