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Ken Mattingly (CAPCOM)
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Apollo 8, Houston. We're not getting a good lock. I wonder if we could try making sure that we're in AUTO on the tracks and that we're in narrow beam width?
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Ken Mattingly (CAPCOM)
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Apollo 8, this is Houston. What we're doing right now is collecting baseline data, and we'll be in this mode for another couple of minutes and then we'll be moving out to the second signal.
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Ken Mattingly (CAPCOM)
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Okay. We are … we have some ground problems, and we're reading you weak but clear. We're ready to start into our test. We're going to be changing our modes so you'll probably hear a burst of noise as we make the change. This will be a noise that sounds like an S-band onlock. However, your AEC leader will lock that off. This is due to the loss of modulation on the uplink. There will be about 2 minutes, and during this time, you will hear one burst of noise.
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Ken Mattingly (CAPCOM)
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Okay. Thank you. Were you reading all along? We just—This is the first time we've heard you call back.
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Bill Anders (LMP)
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We've been reading you; we're trying to hold the noise down so we can get some sleep.
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Ken Mattingly (CAPCOM)
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Okay, Apollo 8. The next portion of our test is like we did yesterday; We'll be changing the uplink modes to uplink command and ranging with no upvoice. We'll be in this mode for approximately 2 and 1/2 minutes and send two test messages. During this time, we will not have uplink. We are going to this mode at time 33:48:30, and we'll be back in this configuration at 33:50:00. Over.
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Ken Mattingly (CAPCOM)
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Apollo 8, we've completed the third test; we're going into the final test now. PCM switch to HIGH, please.
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Ken Mattingly (CAPCOM)
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Apollo 8, Houston. We're going to switch uplink to the upvoice backup for about 2 minutes, and may take a few seconds to link the transition. And we'll be back up at 33:56 in our normal mode to place the up-telemetry data switch to upvoice backup at this time. Over.
Spoken on Dec. 22, 1968, 10:25 p.m. UTC (55 years, 10 months ago). Link to this transcript range is: Tweet
