UBX-22039292 - R01
Hardware
Page 10 of 28
C1-Public
2.3.1
Use case #1: Correction data through L-band receiver
L-band represents the range of frequencies in the radio spectrum from 1 2 GHz to 2 GHz, which is the
top end of the ultra-high frequency (UHF) band and the lower end of the microwave range.
In this use case #1, the NEO-D9S module receives correction data through LBAND and the NINA-
W106 module gets the correction data from NEO-D9S through the I2C bus. NINA-W106 forwards the
correction data to ZED-F9R through the same I2C bus.
The active components in this use case are shown in
Figure 5: Correction data flow (L-band)
☞
NINA-W106 also forwards the decryption keys for the correction data packages to ZED-F9R. The
decryption keys (changed monthly) can be downloaded from the internet over a NINA-W106 Wi-Fi
connection or LARA-R6 LTE Cat 1 connection, using the MQTT messaging protocol.
☞
For library references, code examples, build instructions, macro and component definitions
related to this use case, see also the GitHub example: “
Correction data via NEO-D9S LBAND
module to ZED-F9R with the help of MQTT
–
using certificates
