ANTENNATYPE

Store the user defined antenna type

Platform:

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700

Use the ANTENNATYPE command to control the storage of up to five user-defined antennas. Values are entered and interpreted according to the conventions in the IGS ANTEX format.

The current list of user-defined antennas stored by the receiver can be viewed using the USERANTENNA log. The THISANTENNATYPE command and BASEANTENNATYPE command control the use of the antennas in RTK.

Message ID: 2281

Abbreviated ASCII Syntax:

ANTENNATYPE Action AntennaType [AntennaName] [NumberOfFrequencies] [Frequency] [NorthOffset] [EastOffset] [UpOffset] [PCVArray] ...

The “Number of frequencies” determines the number of frequencies for which Phase Center Offsets (PCOs) and Phase Center Variations (PCVs) are stored. For simplicity, the syntax above shows a single frequency. The ASCII Example 1 below shows two frequencies being added.
PCOs and PCVs can be defined for up to 24 frequencies.

ASCII Example 1:

ANTENNATYPE ADD USER_ANTENNA_1 NOVCUSTOM 2 GPSL1 0.09 0.0 51.74 0 -0.03
-0.11 -0.20 0.23 -0.17 -0.04 0.14 0.26 0.25 0.07 -0.24 -0.54 -0.67 -0.49
-0.02 0.55 0.84 0.47 GPSL2 -1.54 1.66 52.00 0.00 0.0 0.0 -0.03 -0.13 -0.28
-0.48 -0.61 -0.56 -0.28 0.23 0.84 1.29 1.31 0.77 -0.16 -0.95 -0.81 0.97

ASCII Example 2:

ANTENNATYPE REMOVE USER_ANTENNA_1

Field

Field Type

ASCII Value

Binary Value

Description

Format

Binary Bytes

Binary Offset

1

Command header

ANTENNATYPE header

This field contains the command name for abbreviated ASCII or the message header for ASCII or Binary.

H

0

2

Action

ADD

0

Add a user antenna

Enum

4

H

REMOVE

1

Delete a user antenna

3

AntennaType

Table: User-Defined Antenna Type

User defined antenna type

Enum

4

H+4

4

AntennaName

 

 

Name of the user defined antenna

Char[16]

16

H+8

5

NumberOf
Frequencies

 

 

Number of frequencies for which corrections are stored

Ulong

8

H+24

6

Frequency

See Table: Frequency Type

The frequency for which the phase center corrections are valid.

Enum

4

H+32

7

NorthOffset

 

 

North phase center offset (millimetres)

Valid range: -326.66 to 326.66

Float

4

H+36

8

EastOffset

 

 

East phase center offset (millimetres)

Valid range: -326.66 to 326.66

Float

4

H+40

9

UpOffset

 

 

Up phase center offset (millimetres)

Valid range: -326.66 to 326.66

Float

4

H+44

10

PCVArray

 

 

19 element array of Phase Center Variations in 5-degree elevation increments from 90 degrees elevation to 0 degrees (millimetres)

Valid range: -326.66 to 326.66

Float[19]

76

H+48

11

Next Frequency = H + 32 + (Number of frequencies x 92)

User-Defined Antenna Type

Binary

ASCII

1001

USER_ANTENNA_1

1002

USER_ANTENNA_2

1003

USER_ANTENNA_3

1004

USER_ANTENNA_4

1005

USER_ANTENNA_5