BG7NOD I haven't used the 6400, and my electromagnetic environment makes it impossible to achieve its theoretical performance. Therefore, I can't comment on it.
In addition to the FPGA and filter upgrades mentioned above, it also includes a GNSS receiver module that can be used as an NTP server and to calibrate the internal crystal oscillator. The MARS ATU GPSDO module is an optional accessory. Regarding the transmission and reception parameters, we will wait for the results from Sherwood.
The machine was very light, but the casing was too large and the interior was empty. It seems that this casing is only meant to hold Aurora series products.