Gateway receiving in wrong Frequency band?

[LoRaTracker]

@iob

I would expect some filters tuned to limit the range to the specific band. I mean you have to select at ordering whether it should be 434, 868 or 915.

I would expect that the filters on the RF input side would not be so sharp that a 915Mhz module would completly exclude all 868Mhz signals.