LoRa module with TXCO

[bmarkus]

Is there a LoRa module with TXCO for the SX127x chip?

[bmarkus]

@danielm said in LoRa module with TXCO:

What difference in radio performance can be expected for L04 vs L01?

SX127x chips offer lower bandwidth modes than 125kHz but you need a TXCO to use them. In LoRaWAN lower bandwidth not used to keep device prices low, but it can be usefull in other P2P or mesh network applications. Of course you need a Pycom firmware also which supports it in RAW LoRa mode.

[danielm]

@jmarcelino
Can increased frequency stability affect received signal quality on the other end?

[jmarcelino]

@danielm
Sensitivity and TX power should be similar (note I have not tested this myself), the main thing will be increased frequency stability across temperature ranges.

Also useful for Sigfox

[danielm]

What difference in radio performance can be expected for L04 vs L01?

[jmarcelino]

@bmarkus
The LoPy4 has a TCXO and that will be in the L04 module as well when released (I don’t have a release date, sorry)