I’m looking for a way to connect 2 (or more) GPS receivers (Specifically SparkFun GPS-RTK-SMA x2) to a single antenna (TOP106). My assumption is that this splitter (https://timemachinescorp.com/product/2- … z3EALw_wcB) from TimeMachines would work, but I don’t have experience here and want to make sure before I put any order in.
Is one of these passive GPS splitters a good option, or is there a better choice out there to connect multiple receivers to one antenna?
Thank you!
It should work. All GPS (GNSS) antennas require active elements within them to overcome the very low signal levels from space-based signals (i.e. they require built-in LNA). Therefore, the GPS (GNSS) receiver must supply DC bias to antenna. The splitter/combiner you show does this by having RF from antenna split from one antenna into two receivers and having one of the two receivers provide the DC bias (while the other one has a DC block (i.e. capacitor in series). I am sure there are other options/manufacturers; but the one you show looks adequate.
Awesome, thanks for the info, it’s greatly appreciated!