[solved] channels TTIG US915

Gateways TTIG - The Things Indoor Gateway
1

I want to know what channels are used for the The Things Indoor Gateway, is it possible to change them? how?

2

That depends on your region, there are EU868, US915, AS923 and CN470 versions available.

No

3

I use the US915 region , do you know how can I select the channels?

4

:roll_eyes:

why ?

5

Because it is important to my node to know on what channels can transmit data, according to the spec related to TTIG it can only listen from 8 channels, it would be very convenient if my nodes transmit only on those channels.

My question is,on what channels the TTIG is listening?

6

https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html

Note that The Things Network uses 2nd Sub-Band only (channels 8 to 15 and 65). You’ll need to program the specific channels into the devices in order to make them work with TTN.

*removed wrong img (AU915) :astonished:

7

I’m not sure where you got that table from, but it is completely wrong.

The actual TTN uplink frequencies for US 915 (which are indeed the 2nd subband) are:

  1. 903.9 - SF7BW125 to SF10BW125
  2. 904.1 - SF7BW125 to SF10BW125
  3. 904.3 - SF7BW125 to SF10BW125
  4. 904.5 - SF7BW125 to SF10BW125
  5. 904.7 - SF7BW125 to SF10BW125
  6. 904.9 - SF7BW125 to SF10BW125
  7. 905.1 - SF7BW125 to SF10BW125
  8. 905.3 - SF7BW125 to SF10BW125
    and possibly
  9. 904.6 - SF8BW500
8

Thank you @BoRRoZ, the link is correct, the table is not.
Thank you @cslorabox