LC29HAA GPS-module, no L5 or B2 satellites

isstar1978 · February 14, 2024, 4:56pm

Hi.
I implemented LC29HAA GPS-module as dual band, but it doesn’t see any L5 or B2 satellites.
What is wrong?
I use no-name active antenna from Aliexpress.
Is this module able to see that satellites?

I give command:
$PAIR105

Answer:
$PAIR001,105,0
$PAIR105,1

Raphael-Q · February 19, 2024, 1:57am

Hi Isstar,

LC29HAA module is a dual band module and L1+L5 is enabled by default.

Please check the firmware version on your module by sending: $PQTMVERNO*58

Please check the antenna specification. Probably you are now using a single band antenna. An L1+L5 dual band antenna should support 1559–1606 MHz(L1 band) and 1164–1189 MHz(L5 band). And the recommended antenna specification is shown below.

Best regards.

isstar1978 · March 18, 2024, 1:25pm

It was the antenna. Now I connected YB0017AA from Aliexpress and everything is fine.