NavCom Sapphire Rev.J - Manual (Page 85)

Sapphire Technical Reference Manual Rev. J
85
1.28 COLDSTART (ASCII)
SF-3050 Sapphire SF-3040
This command is used to do a receiver Cold Start. After receiving this command, the receiver
erases the position, ephemeris, almanac (GPS, GLONASS, and SBAS), and time; invalidates
real-time clock; and restarts.
Command: [COLDSTART] {DEFAULTALM}
Parameter Definition
Defaultalm Keyword that commands the system to use the default hard-coded almanac after reset

Using the [COLDSTART] command without any parameters means the system
does not use the hard-coded almanac after reset.

Even though the almanac in NVRAM is erased, there is still a hard-coded almanac
in the receiver firmware.