Trimble Outdoors SK8 - Manual (Page 51)

Lassen-SK8 Embedded GPS Module 3-9
Software Interface
Alternatively, you may use Trimble's TSIP packets 60h and 61h to apply differential
corrections through the Lassen-SK8 port 1 (J4, pin 5). These packets can be interleaved
with the TSIP command stream. Packets 60h and 61h are useful in applications which
require the use of a single communications channel between the Lassen-SK8 and the
system. Note that using these messages requires you to reformat the RTCM SC-104
differential correction data into the 60h/61h message format. See Appendix A for more
information on these messages.