Required bandwidth for GPS signal

[Green1234]

We are working with tuning of the GPS:

Basically the tuning is fine but we are mostly bandwidth limited.

I wanted to ask  how much is the acceptable bandwidth for a GPS signal.  Would 20MHz be fine or do we need more?

[AHaug]

Hi,

Apologies for the delay in response. The office has been closed due to the recent holidays.

According to the product specification for nRF9160, the nRF9160 supports GPS L1 C/A band, which has a bandwidth of 24 MHz. However, due to the signal design a bandwidth of 9.66 MHz will capture enough data to allow the receiver under test to acquire it, track and navigate.

In other words: 20MHz will be fine, but you should get away with using a minimum of 9.66MHz bandwidth for this specific GPS band at least in testing.

Let me know if this answers your question!

Kind regards, 
Andreas

[Green1234]

Thanks a lot.

Regards

Liang