Specifications
Introduction 3
Introduction
[B] RTCM Base
The receiver has the ability to be set as an RTCM differential base station and can 
output real-time differential corrections when this option is enabled. 
The output will be in RTCM-104, Version 2.2 format message types 1,3,6, 16 and 22 
as well as RTCM Carrier Differential 18, 19, 20, and 21. For messages 18, 19, 20, and 
21, the K option is also required.
[U] RTCM Remote
The real-time differential corrections are available when this option is enabled.
The receiver will decode the RTCM-104, Version 2.2 format message types 1,3,6,9, 
16, and 22 as well as types 18, 19, 20 and 21. For messages 18, 19, 20, and 21, the J 
option is also required. 
[E] Event Marker
The [E] option enables the storage of event times created from a trigger signal. The 
receiver measures and records event times with high accuracy (down to one 
microsecond). The receiver will store an event time at the rising edge of the trigger 
signal (or the falling edge on command) and the time will be recorded in the 
receiver’s PC memory card and/or output through the TTT NMEA message.
[X] External Frequency Reference
The external frequency option [X] allows the user to input an external frequency so 
the user can synchronize receiver data to an external clock. When enabled, its 
installation disables the internal oscillator and use the external frequency input only. 
This option is not available for the Z-Eurocard.
This option is not available for firmware version UC00 or older.
1,2,3 Observables
J RTK Rover
KRTK Base
 Table 1.2: Z-Family Options (continued)
Option Description (continued)










