Can LMIC 1.6 be set up to use a single channel and SF?

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Hi there!
I am using LMIC 1.5. Looking for the same answers as you… :slight_smile:
Found a way to lock join frequencies to a single channel by setting CH0,1,2 to the same frequency.

To fix the spreading factor: in lmic.c, in initJoinLoop modify

// setDrJoin(DRCHG_SET, DR_SF7); setDrJoin(DRCHG_SET, LMIC.datarate);

In the main code use:
LMIC.datarate=DR_SFx - where x stands for the SF use want to use

To avoid SF hopping during join: in lmic.c, modify nextJoinState:
// setDrJoin(DRCHG_NOJACC, decDR((dr_t)LMIC.datarate)); setDrJoin(DRCHG_NOJACC, (dr_t)LMIC.datarate);

So it wont try to decrease the SF when previous join failed.
Cheers