1
00:00:01,180 --> 00:00:03,100
Challenge number one.

2
00:00:03,220 --> 00:00:04,380
Here's what we know.

3
00:00:04,380 --> 00:00:11,820
Having access to the ground station means we can attempt communication, but the satellite is spinning out of control, which complicates everything.

4
00:00:12,120 --> 00:00:13,060
The challenge.

5
00:00:13,060 --> 00:00:15,980
Teams must regain communication with the satellite.

6
00:00:16,840 --> 00:00:18,560
Here's how they do it.

7
00:00:18,560 --> 00:00:24,500
To get started, teams must set the command and telemetry rates appropriately and the power output to maximum.

8
00:00:24,500 --> 00:00:28,020
Because the satellite is spinning, additional link margin is required.

9
00:00:28,020 --> 00:00:32,160
The teams receive periodic telemetry, but are not able to command the vehicle.

10
00:00:32,300 --> 00:00:41,620
Based on the review of the anomaly resolution section in the user's guide, they realize that to increase the link margin, they should increase radio output power and decrease link rate.

11
00:00:41,620 --> 00:00:46,660
They command the radio to high power and low rate mode and regain communications with the satellite.

12
00:00:46,720 --> 00:00:51,620
The link is limited to low rate, meaning that what they can send and receive from the satellite is limited.