Hardware: T-Beam T22_V06 20180706
Firmware: SoftRF 1.0-rc4+

R33 is shown as a 22uh choke going between the center pin of the ipx connector and RF_IN. A choke in this position would not be useful in passing the 1575 mhz satellite signals from the patch antenna to the RF input of the Ublox Neo6 gps. A capacitor could work to block the dc to the antenna input but in my board this item measured .6 ohms and when taken off measured 17uh on my meter, so it was in fact an inductor

. The normal Ublox wiring has a choke in the line from the antenna connector pin through a limiting resistor to the VCC_RF that powers the patch antenna. The existing wiring does work, but is improved by removing the choke and putting it in series with the 22 ohm resistor R28. The wiring from the RF_IN was then jumped to the center pin of the ipx connector . In my case this improved the number of satellites tracked by 1 or 2 and improved the position error. I suggest this change me made to the pcb before the next production run.

David VE3KCL