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 add-on, 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 add-on (instead of the Z-Wave JS add-on) 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.