Hello Community, I was wondering what actually happens when I do not use the SF parameter while intilaizing LoRa settings like this lora = LoRa(mode=LoRa.LORA, region=LoRa.US915, sf=9, coding_rate = LoRa.CODING_4_8, tx_power=20, rx_iq=True) here I have used SF 9 what if I remove this parameter do…

What is the application ? What library ? What language ? The LoRa parameters for TTN are normally not an option you would configure at program level, the TTN layer controls them for you.

Just to test data rates at different distances. I am using the pycom board for lora and not yet intergrated with TTN. If thats the case will they be still existing at the physical layer by default?

oh… I thought he is writing a book :wink: FEC in LoRa/LoRaWAN What methods are supported on LoPy's "LoRa" class? Understanding coding rate

It is a ‘she’ FYI. Also since you assumed i was an author. I am just a student trying to learn most of what I could by figuring out and trying to various experiments myself. So if you can’t encourage then no problem. Good luck buddy !!

hmmmmmmmmm … no humor sorry :sunglasses:

[image] snehasg95: If thats the case will they be still existing at the physical layer by default? I dont understand the question, will what still be existing at the ‘physical’ layer ? Please appreciate that whilst you may know what hardware setup and language you are using, it may not be ob…

[image] snehasg95: I was wondering what actually happens when I do not use the SF parameter while intilaizing LoRa settings like this This looks like Micropython code, probably for the LoPy or FiPy. As the lora behavior depends on the firmware I think the Pycom forum is a better place to ask…

[image] snehasg95: I was wondering what actually happens when I do not use the SF parameter while intilaizing LoRa settings like this Well in most languages, if you do not use (ommit?) a parameter a function is expecting, then you will and should get a program error.

I am not sure what you mean by language using? I am using the pycom lora boards and my scripts are written in Micro python. I am carrying out all my experiments in the US region. To be precise, i am wondering what will be the case when i dont specify any coding rate at all. Will there be no error c…

what is the relation with TTN network ?

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Default SF and coding rate in LoRa

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BoRRoZ March 12, 2019, 7:41pm 4

oh… I thought he is writing a book

FEC in LoRa/LoRaWAN
What methods are supported on LoPy's "LoRa" class?
Understanding coding rate