How RC1 settings work in multi zone device using Power Amplifier¶
Using RC1 zone with multi zone device can have advantages and disadvantages¶
The power amplifier in RC1 is not used by default. If you have multizone device using power amplifier even in switched off state the radio performance will be lower by 1.5 dBm due to the more complicated radio path. On the other hand you can enable the Power amplifier by enabling bit.............in byte. This will give you power output of 22 dBm that is not legal in RC1. You can lower the output by decreasing the voltage and setting the parameter ..........to value 1 to 3... The table TBD This will increase power consumption per message by 50 percent. If the device is integrated into another device (e.g.fridge, cooler, manhole) you can use increased power output and certify the end device as whole.
Are there any limitations when it comes to receiving the signal on the device¶
The goal of Sigfox is to create an ecosystem of low-cost long-lasting devices. The long-lasting part is important, because active listening (being able to receive a signal sent to the device all the time) would drain the battery much faster. Because of this, Sigfox-based devices have to ask for the signal first and afterwards they are listening to the respective frequencies for some time (under a minute) - this is the time window in which they are able to receive the signal. This means that if you want to change device settings via downlink (by sending the downlink sequence in a signal to the device), you need to first make the device request the downlink. This can be done in several ways, you can read more about this in this article: https://simplehw.atlassian.net/wiki/spaces/DOC/pages/23396404/API+6+Downlink+Information