Sysmocom or JetVision cavity

[LawrenceHill]

@jbelvin

Can anyone tell me the difference

Here are some plots of the Jetvision and Sysmocom filters
500MHz plots 10dB/div
Jetvision:

Sysmocom:

30MHz plots 1dB/div
Jetvision:

Sysmocom:

The engineer in me prefers the shape of the Sysmocom filter response.
Also the Sysmocom filter is considerably smaller than the Jetvision.
In use, both seem to perform equally as well

Edit:
If you want to compare with the FlightAware filters see here:

Which one is the best antenna?

The narrower, Dark blue filter I presume That looks pretty close to what I measured. [FlightAware ADSB Filter Dark Blue - 840-1340MHz] Here is a comparison between the light and dark blue filters. [FlightAware ADSB Filters Light and Dark Blue - 840-1340MHz]