There are some ways to circumvent it but that's a real burden.
Not really. I suggest you have a look at these 2 free programs ModeSDeco2 and / or ModeSMixer2:
http://xdeco.org/If you want to view the output from many different types of receivers, then MSM2 can transcode into BS format and you see the BaseStation display exactly as though it was connected to an SBS receiver. Additionally, you can view the output on any compatible device that can run BaseStation.
If you use an SBS you can have multiple copies of BS running simultaneously anywhere on your network. Something you can’t do with a direct SBS to BS connection.
ModeSDeco2 will also allow you to connect e.g. a dongle and decode the off-air signals and transcode them to BS format all in one program.
So rather than seek to buy a replacement SBS, why not consider perhaps a FA dongle, use the dump1090fa program to do the decoding and supply data to FA. You get returned Mlat data to you, so using MSM2 you can transcode both streams - ADSB and Mlat into BS format and see everything in BS. This provides a unique view as to see Mlat traffic in BS is a bit of a novelty!
Come back if you need more but there is lots of info on the above two programs here on the forum.
Tim