Uputronics recently changed their labelling by rotating the label 180 degrees and changing it from ANT and OUT (which is seen on many images online) to ANT and RX. This also makes the arrows line up properly with the SMA connectors. If you’ve seen the filter online it’s easy to connect it with the label the same way up and not notice that’s now the wrong way around. The unit itself, and its layout, hasn’t changed, only the label.
