Both the radio frequency and the radio transmit power level used by Z-Wave devices depend on your region.
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By default, the radio frequency of Home Assistant Connect ZWA-2 is set to EU Long Range.
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The transmit power level is configured for Europe.
About transmit power levels
If you use Home Assistant with the Z-Wave JS app, the radio frequency region and transmit power levels are configured automatically. You do not need to do anything.
If you use another hub (not Home Assistant), or you use the Z-Wave JS UI app (instead of the Z-Wave JS app) you may need to change the radio frequency region and transmit power levels. The location of the settings depends on your hub.
There are 3 transmit power values that can be set:
- Normal transmit power level (sometimes called TX power level)
- Max. Long Range transmit power level
- Power level calibration (also called "measured power at 0 dBm")
Normal power transmit power level
Depends on the region:
- EU: +13 dBm
- US: -1 dBm
- Rest of the world: Unknown (you could try EU levels)
Max. Long Range transmit power level
Depends on the region:
- EU: +14 dBm
- US: +20 dBm
- Rest of the world: Does not apply (No Long Range outside of EU/US yet)
Power level calibration
Should not be changed. Power level calibration is hardware-specific. For the Home Assistant Connect ZWA-2, it should be 0 dBm.