SR2.8.TCT - SEMTECH

SR2.8.TCT Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance of the SR2.8.TCT?
  A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the RF traces as short as possible and use 50-ohm impedance matching to minimize signal reflections.
• How do I ensure reliable communication between the SR2.8.TCT and other LoRaWAN devices?
  Ensure that the devices are configured to use the same spreading factor, bandwidth, and coding rate. Also, verify that the devices are operating on the same frequency band and have a clear line of sight.
• What is the maximum transmit power of the SR2.8.TCT, and how can I adjust it?
  The maximum transmit power of the SR2.8.TCT is +20 dBm. You can adjust the transmit power by using the `setTxPower()` function in the Semtech API, which allows you to set the power level from +2 dBm to +20 dBm in 1 dB steps.
• How do I implement frequency hopping with the SR2.8.TCT?
  Frequency hopping can be implemented using the `setFrequency()` function in the Semtech API. You can define a list of frequencies and use the `hop()` function to switch between them. The SR2.8.TCT supports up to 16 frequency channels.
• What is the typical current consumption of the SR2.8.TCT, and how can I optimize it?
  The typical current consumption of the SR2.8.TCT is around 30 mA in transmit mode and 10 mA in receive mode. To optimize current consumption, use the `setMode()` function to switch to low-power mode when not transmitting or receiving, and use the `sleep()` function to put the module into sleep mode when not in use.