433Mhz use in Australia.

[PeterG]

I have spent some time looking into the rules and regs in Australia regarding the use of the 433Mhz band. It seems Australia does not have a 433Mhz ISM band as such. It does however seem to allow for this band to be used for short bursts using digital communication.
The issue i am faced with is this. I have designed a device with both WiFi and an HC-12 module. The HC-12 will be sending about 5 bytes at 1200bps at very long intervals. The signal is used to control a remote relay(Sonoff is not an option). How does this setup stand regarding Australian regs?

Hope someone here knows more than i do regarding this question.

Regards
PeterG

[tautech]

I looked at much the same thing in NZ. The rules do need some wading through to find the answers but it should all be there. The most likely constraint will be W ERIP that's a product of your transmitter and antenna gain combination.
433 MHz is a common telemetry band down under while the US uses 315 MHz.

[PeterG]

Thanks for the reply Tautech, looking at the datasheet for HC-12 i doubt it will exceed the 25mW ERIP stated in the regs if i tone down the output power. I am more concerned with working out if there are specific licensing issues to deal with.

Regards
PeterG

[vk3yedotcom]

433 MHz in Australia is covered by the ACMA class licence for "Low Interference Protection Devices".  See https://www.acma.gov.au/Industry/Spectrum/Radiocomms-licensing/Class-licences/lipd-class-licence-spectrum-acma

I don't think there's an issue with long interval transmissions. In the past FM walkie talkies, where the transmit time is indefinite, have been designed and sold by Australian companies for this band.

Here I have some fun with 433 MHz modules and get some quite incredible ranges from them http://home.alphalink.com.au/~parkerp/projects/projuhf.htm

433 MHz is shared with radio amateurs who use much higher power equipment.  That could interfere with typically unselective LIPD receivers. So it shouldn't be used for mission critical applications.

[mh2000wh]

Dear there,

I have run into the same problem. My product is using 433Mhz for smart home control. However, I just realized this band may need a licence or permission to operate. Or even the product have to be certificated.   Please let me know the outcome. Thanks!

[Mechatrommer]

if you ask them... they want to own everything...
https://transition.fcc.gov/oet/spectrum/table/fcctable.pdf

[mh2000wh]

And also sharing some reference I found online.

1.Short-range spread-spectrum devices fact sheet
https://www.acma.gov.au/Industry/Spectrum/Radiocomms-licensing/Class-licences/shortrange-spreadspectrum-devices-fact-sheet
It only mentioned the following band.

915 to 928   
2400 to 2483.5   
2400 to 2483.5   
5725 to 5850

2. ISM form WIKI
https://en.wikipedia.org/wiki/ISM_band

433.05 MHz-434.79 MHz   only in Region 1, subject to local acceptance 
However, Australian is in Region 3.

3. Spectrum at 434 MHz for low powered devices
https://www.acma.gov.au/theACMA/spectrum-at-434-mhz-for-low-powered-devices
433Mhz only can up to 25mW but my one is around 50mW

[mh2000wh]

if you ask them... they want to own everything...
https://transition.fcc.gov/oet/spectrum/table/fcctable.pdf

Thanks for your help!    However, I think it is for US.

[Lord of nothing]

430 - 440 is in many Country a Amteur Radio Band. So you can use it with an AFU Licenece?

[vk6zgo]

430 - 440 is in many Country a Amteur Radio Band. So you can use it with an AFU Licenece?

As it is in Australia.
We had a perfectly good  band at 305MHz for car remotes & the like, but big business wanted to import EU style 433MHz units which, due to the existing large market were cheap.

Under pressure from various "interest groups", ACMA "rolled over & played dead" & so the so-called Low Interference Potential Device (LIPD) category was born.

[JoeyG]

Australian Law   - Radiocommunications act  lists  the Short Range Devices starndard (LPID)  See here  https://www.legislation.gov.au/Details/F2019C00004

I says
Standard for performance – short range devices

         (1)   For paragraph 162(1)(a) of the Act, the standard for performance of an applicable device is as set out in AS/NZS 4268,

AS / NZS  4268:Feb 2018 is the current standard and it lists  433MHz  as one of the available frequencies up to 25mW  EIRP.
With the performance test derived from EUROPEAN ETSI 300 220.

There is no limit max transmission time.

** Disclaimer - I offer one persons opinion and customers should do they own due diligence  when evaluating government legal requirements **

[Richard Crowley]

According to international (ITU) regulations, 433 MHz ISM is legal only in Region 1
(Europe, Africa, the former Soviet Union, Mongolia, and the Middle East west of the Persian Gulf)
Ref: https://en.wikipedia.org/wiki/ISM_band#Frequency_allocation

Australia and New Zealand are in ITU Region 3.
Ref:https://en.wikipedia.org/wiki/ITU_Region

433 MHz ISM is not legal in Region 2, either (Americas, Greenland, some eastern Pacific islands)

[Lord of nothing]

When a Country make a Law who legalise it so where is the problem?