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@ -146,15 +146,15 @@ publish-mqtt Urukul/Control/Channel0/Switch "on"
``` ```
This turns on the channel 0 RF switch. This turns on the channel 0 RF switch.
## Attenuation ## Attenuator
- Topic: `Urukul/Control/Channel<ch_num>/Attenuation` - Topic: `Urukul/Control/Channel<ch_num>/Attenuator`
- ch_num: The channel number, from 0 to 3. - ch_num: The channel number, from 0 to 3.
- Message: `<atten> [dB]` - Message: `<atten> [dB]`
- atten: Attenuation of the attenuator of the specified channel. The unit dB is optional. Valid attenuation is within [0, 31.5] (inclusive) in decibel. - atten: Attenuation of the attenuator of the specified channel. The unit dB is optional. Valid attenuation is within [0, 31.5] (inclusive) in decibel.
### Example ### Example
```shell ```shell
publish-mqtt Urukul/Control/Channel0/Attenuation "20 dB" publish-mqtt Urukul/Control/Channel0/Attenuator "20 dB"
``` ```
This sets the attenuation of the channel 0 attenuator to be 20 dB. This sets the attenuation of the channel 0 attenuator to be 20 dB.