AWS Ground Station
User Guide

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Downlink Demod/Decode and Uplink Echo Template

The AWS CloudFormation template named DownlinkDemodDecodeAndUplinkEchoCustomerTemplate.yml is based on the Downlink Demod/Decode and Uplink Template from the previous section. It provides all the resources necessary for a single downlink stream, a single uplink stream, and an uplink echo stream. You can download the template using the following AWS CLI command:

aws s3 cp s3://groundstation-customer-cf/DownlinkDemodDecodeAndUplinkEchoCustomerTemplate.yml

The template can be viewed and downloaded in the console by navigating to the following URL in your browser:

https://s3.console.aws.amazon.com/s3/object/groundstation-customer-cf/DownlinkDemodDecodeAndUplinkEchoCustomerTemplate.yml

You can specify the template directly in AWS CloudFormation using the following link:

https://groundstation-customer-cf.s3-us-west-2.amazonaws.com/DownlinkDemodDecodeAndUplinkEchoCustomerTemplate.yml

What resources does the template define?

The downlink demod/decode and uplink echo template defines the following resources in addition to the resources defined in the Downlink Demod/Decode and Uplink Template from the previous section:

  • Downlink Demod/Decode and Uplink – This template includes all of the resources defined in the downlink demod/decode and uplink template.

  • Security Groups – This template updates the properties of the security groups to include ingress and egress for the uplink echo stream’s port.

  • Data Defender Streams – This template adds a new entry for the uplink echo stream in the stream definition JSON blob contained in the Amazon EC2 instance’s UserData property.

  • Dataflow Endpoint Group – This template updates the dataflow endpoint group so that it contains a new endpoint for the uplink echo stream.

  • Uplink Echo Config – The AWS Ground Station antenna uplink echo config specifies the uplink stream from which to echo back to your Amazon EC2 instance.

  • Uplink Echo Endpoint Config – The AWS Ground Station dataflow endpoint config defines the endpoint used to stream data from the uplink echo back to your Amazon EC2 instance.

What changes should I make to the AWS CloudFormation template?

The downlink demod/decode and uplink echo template doesn't require any changes in addition to the changes mentioned in the Downlink Demod/Decode and Uplink Template section.