Berkeley Varitronics Systems Fox Manual page 40

of the input command.
Data Message Output Rates
OUTPUT MESSAGE TYPE CONTINUOUS (m=1
Position/Channel Status
Satellite Range Data Output
Pseudorange Correction At selected update rate
Output
Ephemeris Data Output
Satellite Broadcast Data
Msg
Visible Satellite Status
DOP Table Status
Almanac Status
Leap Second Pending
*The message is sent 1 second after word 10 of the current subframe is collected.
**One time after the current subframe (word 10) of data has been collected.
For the case where more thin one output message is scheduled during the same I second interval, the GPS Receiver will output
all scheduled messages but will attempt to limit the total number of bvtes transmitted each second to 750 bytes. For the case of
multiple output messages, if the next message to be sent fits around the 750 byte length goal, then the message will be output.
For example, if messages totaling 718 bytes are scheduled to be sent, and the user requests another 58 byte message, then
776 bytes will actually be sent. If the user requests Vet another 86 byte message, then its output will be left pending and will be
scheduled when the total number of output bytes allows. The order shown in the Data Message Output Rates table is the priority
order for transmitting messages. Below this priority list, the ONCORE Receiver Control Parameters response messages and the
Utilities response messages have the lowest priority. You can select each of the output data messages as either one-time output
(polled), or output continuously (continuous) at a selected update rate. The polled or continuous option of each output message
is remembered during the power-off state in the ONCORE Receiver nonvolatile memory
NOTE: Every change-para meter type" input command has a corresponding response message showing the configuration
parameter change. To request the current status of the ONCORE Receiver, enter an input command with at least one out-of-
range parameter. The response message to properly formatted commands with outof-range parameters is to output the original
unchanged value of the parameter.
The ONCORE Receiver is capable of supporting the following optional capability via the Motorola Binary 1/0 Format. Receivers
with no options installed will not respond to, nor create, the following input/output messages listed below. In addition, the 1
PPS hardware output of the receiver 1/0 port is deactivated. You can install these options independently at any time. Contact
your Motorola P. N. S. B. customer repersentative for information about option installation.
Options
Option: Thning1l PPS Capability
Position I lold Position
Position Hold Enable/Disable
Measurement Epoch Offset
1 PPS Time Offset
1 PPS Cable Delay
Option: Real-Time Differential Capability (is now a standard feature)
Position Hold Position
Position Hold Enable/Disable
Output Pseudorange Correction (Master Station)
Input P-;eudorange Correction (Remote Mobile)
Available Motorola
Options: Satellite Pseudorange/Carrier Phase Data Capability
Satellite Range Data Output Message
255)
At selected update rate
At selected update rate
When Eph data changes
Once every six seconds*
When Vis data changes
When DOP data changes
When Alm status changes
When Requested
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ONE TIME (m=O)
When requested
When requested
When requested
When requested
One time**
When requested
When requested
When requested