Trimble Outdoors Part Number 45005-00-ENG manual Packet Descriptions, Oscillator Offset

Trimble Standard Interface Protocol A

A.15 Packet Descriptions

Command packets are sent from an external device, such as a computer or terminal, to the receiver when requesting report packets, setting receiver parameters, or performing receiver command operations such as resetting the receiver. Many command packets have a corresponding report packet, which is sent to the external device in response to the command packet. Some commands perform discrete operations and have no matching report packet.

0x1D Command Packet 1D

Oscillator Offset

This packet commands the GPS receiver to set or clear the oscillator offset in battery backed memory. This is normally used for servicing the unit.

Table A-16 Command Packet 1D - Clear Oscillator Offset

Byte	Item	Type	Value	Response
0	Operation	Byte	"C," 43 hex	Clear the oscillator offset

To set the oscillator offset, four data bytes are sent: the oscillator offset in Hertz relative to L1 as a SINGLE real value. The oscillator offset is automatically updated when the receiver is doing fixes.

Table A-17 Command Packet 1D - Set Oscillator Offset

Byte	Item	Type	Value	Response
0-3	Offset	Single	Offset in	Set the oscillator offset
			Hertz

!Note – Use of this packet is for diagnostic purposes only and is not recommended for the user.

A-20 Acutime 2000 Synchronization Kit User Guide