QUESTION

Question

Hi,

I built a project that uses Quectel BG96 for GPS and LTE communication. For GPS I use M20047-1 antenna but it looks like something is unmatched while I "see" 11 satellites but can't get a fix. Can you provide information on how to properly test the antenna using a VNA? I found for M20057 here:
https://ask.antenova.com/746/what-im-measuring-when-the-active-antenna-20047-is-powered-on?show=746#q746
so I suppose the procedure is similar, but R1 is on some other place... Thanks

Gabrijel

Answer 1

Hi Gabrijel,

What are the C/N values you are seeing from the satellites? If the BG96 module has a LNA it could be a case of the receiver being over saturated as the M20047 has a LNA already.

The process to connect the M0047/57 to the VNA is the same.

Best regards,

Yu Kai Yeung