UHF Frequency Upgrade

**KarlB** · 27th January 2011, 03:24 PM

Standards Australia has today published the new Radiocommunications equipment used in the UHF citizen band radio service Standard (AS/NZS 4365:2011) This is a significant step in implementing the new '80 channel regime'. You can see a preview here: http://infostore.saiglobal.com/store...ItemID=2197852

Cheers
KarlB

**Drover** · 27th January 2011, 03:42 PM

Hey KarlB,

You will have to pardon my lack of knowledge on this topic, but when the 80 channel UHF is up and running - will we require new radio sets to get all 80 channels ?

Cheers

**KarlB** · 27th January 2011, 03:55 PM

Originally Posted by Drover

Hey KarlB,

You will have to pardon my lack of knowledge on this topic, but when the 80 channel UHF is up and running - will we require new radio sets to get all 80 channels ?

Cheers

The simple answer is yes, unless you have a radio that can be reprogrammed to the new frequencies. Your old 40 channel radio will still work but not on the new channels. I am not an expert on this and I am sure there are others on the forum who can be more informative than I can.

Cheers
KarlB

**Lotz-A-Landies** · 27th January 2011, 04:18 PM

40 of the new 80 channels are sort of the same. What is happening is that the channel bandwidth is being reduced from 25kHz to 12.5 kHz meaning that they can squeeze more channels onto the same spectrum allocated to the Citizens UHF Service.

After the commencement date of the new 80 channels, new equipment will be required to meet the 80Ch standard. 40 channel sets can still be used (at least for a time) but there is potential for interference between older sets and users or facilities on new channels.

**VladTepes** · 27th January 2011, 04:58 PM

You have a 40 channel set now... 1, 2, 3 and so on.

Think of the new channels as 1A, 2A, 3A and so on.

**VladTepes** · 27th January 2011, 05:33 PM

Also (for basic info) this forum:
UHF CB Australia - News & Events
notably
UHF CB Australia - Upcoming Changes to UHF CB Radio

and here is a copy of the entire DRAFT standard. used fo cinsultation.
http://shop.standards.co.nz/drafts/D...RASNZS4365.pdf
I doubt much will have changed post consultation.

**Lotz-A-Landies** · 27th January 2011, 05:33 PM

Originally Posted by VladTepes

You have a 40 channel set now... 1, 2, 3 and so on.

Think of the new channels as 1A, 2A, 3A and so on.

Although this is not yet finalised and GME have made a submission to ACMA requesting the new channels be regarded as 41-80 as it is an easier option for them to program. See: http://www.acma.gov.au/webwr/_assets...ifc11-2010.pdf

**Sprint** · 27th January 2011, 08:13 PM

Honestly, i fail to see any reason to change whats already in place.....

**THE BOOGER** · 27th January 2011, 08:33 PM

The extra channels may make it possible to us uhf in metro ares its impossible at the moment due to the d**k heads on channel

**wrinklearthur** · 27th January 2011, 08:59 PM

Originally Posted by KarlB

The simple answer is yes, unless you have a radio that can be reprogrammed to the new frequencies. Your old 40 channel radio will still work but not on the new channels. I am not an expert on this and I am sure there are others on the forum who can be more informative than I can.

Cheers
KarlB

Hi All

The new channels for the narrow band UHF sets will sit between the existing channels i.e. 1, then 41, 2, then 42 etc.

UHF CB Australia - 80 Channel UHF CB Radio Information & Allocations

You will still be able to talk to another ( old ) unaltered UHF CB on the existing channels and also with the new narrow band sets, but there will be a performance deficit between old and new.

When the repeaters are eventually are changed to narrow band settings again there would be a performance deficit between old and new CB's, but only if the repeater channels where to remain on the exiting channel allocations.

Cheers Arthur

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