This RTL LINK has been modified for external 28.8 MHz reference. A GPSDO has driven a signal generator for producing 28.8 MHz. No noticable drift of beacon was noticed. Even the 2832 was a T version and not a T2 no SNR decrease was noticed.
PA3FYM The GPSDO has compared to cesium reference and when producing 10 GHz a drift of +-2 Hz was noticed. The TC was about 100-150.