What certification do I need to use/sell 433.92mhz data devices in the US?
Jon101
Posts: 2
Hello;
I am currently gearing up for some certification testing to allow our product to be sold in the US (it is currently CE marked). Our product is a sensor device that transmits sensor information every 6 seconds or so to a display, using a 433.92mhz FM connection.
I am finding it difficult to understand whether or not I need to change the transmission frequency, in order to make it certifiable for the US. I have read through the fcc reg 15.231 (attached) and so on, but have heard conflicting views from different people. I have also found this device, which operates in a similar way to ours, and uses 433mhz. http://www.smarthomeusa.com/ShopByManufacturer/Eco-Response-Technologies/Item/CM113A/specifications/.
If we use 433, do we need
A specific license from the FCC, (which I believe we will recieve through our certification through TUV)
To limit transmissions to every 10 seconds (we prefer 6 seconds update)
To make sure the transmissions have some variabillity in time between them so they are not perfectly periodic
To limit the transmission time of actual data to a a few tens of milliseconds
Limit power to 25mw (we currently limit it to 10mw to meet CE requirements
If 433 is a no, no, what frequency transmission should we use? 318mz or 415mhz?, we would prefer not to use higher frequencies due to poor transmission through walls etc
thanks in advance for any advice
Confused Jon
I am currently gearing up for some certification testing to allow our product to be sold in the US (it is currently CE marked). Our product is a sensor device that transmits sensor information every 6 seconds or so to a display, using a 433.92mhz FM connection.
I am finding it difficult to understand whether or not I need to change the transmission frequency, in order to make it certifiable for the US. I have read through the fcc reg 15.231 (attached) and so on, but have heard conflicting views from different people. I have also found this device, which operates in a similar way to ours, and uses 433mhz. http://www.smarthomeusa.com/ShopByManufacturer/Eco-Response-Technologies/Item/CM113A/specifications/.
If we use 433, do we need
A specific license from the FCC, (which I believe we will recieve through our certification through TUV)
To limit transmissions to every 10 seconds (we prefer 6 seconds update)
To make sure the transmissions have some variabillity in time between them so they are not perfectly periodic
To limit the transmission time of actual data to a a few tens of milliseconds
Limit power to 25mw (we currently limit it to 10mw to meet CE requirements
If 433 is a no, no, what frequency transmission should we use? 318mz or 415mhz?, we would prefer not to use higher frequencies due to poor transmission through walls etc
thanks in advance for any advice
Confused Jon
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You should check the requirements on the FCC web site. Whoever did your CE testing can probably advise you, also.
Leon
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Amateur radio callsign: G1HSM
Suzuki SV1000S motorcycle
> FCC site and standards, which I have found a little ambiguous
- and, not intended as snarky, welcome to dealing with US bureaucracy.
The FCC is actually not so bad,
Did you do this first?
https://fjallfoss.fcc.gov/coresWeb/faq.jsp
Look here for "OET" about mid-page
http://www.fcc.gov/cgi-bin/EFBoards/systemstatus.cgi?index_t=../../pub/e-file/EFBoards.html
They also list testing labs you can use.
- H
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