On 2022-03-09 10:44, Dan CaJacob wrote:
It looks like this antenna requires 3.3V bias on the center pin to
power the LNA inside? What voltage is supported on the X410's center
pin? Often these things provide a bias to the active antenna to power it.
If the X410 does not provide a bias voltage (or the wrong one - e.g.
5V), you may try putting a Bias-T between the antenna and the USRP and
feeding 3.3V to the antenna that way.
Do you have another GPS device that you can use with the antenna to
eliminate the possibility that the antenna is bad?
The LTE-Lite board that X410 uses provides 3.3V power on the antenna
connector.
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