Transmitter

Transmitter — Defines the electronics hardware, attached to a GroundStation resource, that transmits an RF signal.

Description

A ground station needs a Transmitter to transmit the RF signal to both user spacecraft and to navigation spacecraft such as TDRS. A Transmitter is assigned on the AddHardware list of an instance of a GroundStation.

Fields

Field

Description

Frequency

Transmit frequency

Data Type	Real
Allowed Values	Real >= 0
Access	set
Default Value	0
Units	MHz
Interfaces	script

PrimaryAntenna

Antenna resource used by GroundStation resource to transmit a signal

Data Type	Antenna Object
Allowed Values	Any Antenna object
Access	set
Default Value	None
Units	N/A
Interfaces	script

Remarks

Discussion of how Transmitter frequency is used

A transmitter will be attached to a GroundStation resource. As discussed in the RunSimulator Help, for the case where a ramp table is not used, the transmit frequency is used directly to calculate the DSN range and Doppler measurements. If a ramp table is specified on the relevant TrackingFileSet, the frequency profile specified in the ramp table is used and the transmitter frequency is ignored.

Examples

Create and configure a Transmitter object

Create Antenna DSNAntenna;
Create Transmitter Transmitter1;

Transmitter1.PrimaryAntenna = DSNAntenna;
Transmitter1.Frequency = 7186.3; 

Create GroundStation DSN
DSN.AddHardware = {Transmitter1};

BeginMissionSequence;