Bruce McCandless (CAPCOM)

Neil, Neil, this is Houston through Tranquility. Radio check. Over.

Neil Armstrong (CDR)

Roger. Houston, this is Neil. How do you read?

Bruce McCandless (CAPCOM)

Neil, this is Houston. We're reading you loud and clear. Break, break. Buzz, this is Houston through Tranquility. Over.

Buzz Aldrin (LMP)

Roger, Houston. This is Buzz through Tranquility. How do you read? Over.

Bruce McCandless (CAPCOM)

We're reading you loud and clear, Buzz. Out.

Neil Armstrong (CDR)

*** and are you getting a signal on the TV? Over.

Bruce McCandless (CAPCOM)

That's affirmative, Neil. The data that we're receiving looks good and we are receiving SYNC pulses and a black signal on TV.

Neil Armstrong (CDR)

Okay. You'll find that the area around the ladder is in a complete dark shadow so we're going to have some problem with TV, but I'm sure you will see the—You'll get a picture from the lighted horizon …

Bruce McCandless (CAPCOM)

This is Houston. We copy, and right toward the end of your transmission after you mentioned lighted horizon, you trailed off down into the noise level, Neil. Over.

Bruce McCandless (CAPCOM)

Columbia, this is Houston. Are you reading Tranquility all right on the relay? Over.

Michael Collins (CMP)

I believe so. I haven't heard anything fairly lately, and it's breaking up. But up until about 3 minutes ago, I was reading them loud and clear.

Bruce McCandless (CAPCOM)

Roger. Sounds like you're getting it all.

Bruce McCandless (CAPCOM)

Tranquility Base, this is Houston. We request you open the TV circuit breaker at the present time. We've had it on about 15 minutes now with the MESA closed. Over.

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Neil Armstrong (CDR)

Houston, do you read ***

Bruce McCandless (CAPCOM)

Neil, Neil, this is Houston. I can hear you trying to transmit; however, your transmission is breaking up. Over.

Bruce McCandless (CAPCOM)

Buzz, Buzz, this is Houston. Do you read? Over.

Buzz Aldrin (LMP)

Roger, Houston. This is Buzz. How do you read? Over.

Bruce McCandless (CAPCOM)

Roger. You're coming through loud and clear, Buzz. It's a beautiful signal.

Buzz Aldrin (LMP)

Neil's got his antenna up now. Let's see if he comes through any better now.

Neil Armstrong (CDR)

Okay. Houston, this is Neil. How do you read?

Bruce McCandless (CAPCOM)

Neil, this is Houston. Reading you beautifully.

Neil Armstrong (CDR)

(Static) My antenna's scratching the roof.

Bruce McCandless (CAPCOM)

We copy, your antenna scratching the roof. Roger.

Buzz Aldrin (LMP)

They hear everything but that.

Neil Armstrong (CDR)

Houston, this is Tranquility. We're standing by for a GO for cabin DEPRESS. Over.

Bruce McCandless (CAPCOM)

Tranquility Base, this is Houston. You are GO for cabin depressurization. GO for cabin depressurization.

Buzz Aldrin (LMP)

And the descent water valve is closed.

Buzz Aldrin (LMP)

Verify cabin fan number 1 circuit breaker open.

Neil Armstrong (CDR)

*** Over, PLSS fan number 1 breaker,

Buzz Aldrin (LMP)

We'll have to pull that one out. ***

Bruce McCandless (CAPCOM)

Columbia, this is Houston. Your LM line of sight COMM acquisition with the Tranquility Base is 108 plus 29. LOS is 108 plus 42. Over.

Buzz Aldrin (LMP)

Suit circuits relief valve to AUTO.

Buzz Aldrin (LMP)

Suit gas diverter valve to EGRESS.

Michael Collins (CMP)

I'm going over to … I'll pick you up on OMNI C or D.

Neil Armstrong (CDR)

*** ECS caution light and water separation light ON. Takes a while for the water separator. Maybe.

Buzz Aldrin (LMP)

I don't understand … Suit fan number 1 circuit breaker opened.

Bruce McCandless (CAPCOM)

Buzz, this is Houston. We would like you to pull the suit fan DELTA P circuit breaker on panel 16. Over.

Neil Armstrong (CDR)

*** that *** if, if it's in.

Neil Armstrong (CDR)

Okay. There it is. ECS MASTER ALARM, water separator.

Neil Armstrong (CDR)

*** both suit isolation valves to SUIT DISCONNECT.

Neil Armstrong (CDR)

Okay. Disconnect LM hoses.

Neil Armstrong (CDR)

Connect OPS O2 hose to right hand PGA blue connector and lock.

Buzz Aldrin (LMP)

Let me do that for you.

Neil Armstrong (CDR)

Okay. Locked and lock locked.

Neil Armstrong (CDR)

Okay. Retrieve purge valves from pocket.

Neil Armstrong (CDR)

Verify closed; locked pin installed.

Neil Armstrong (CDR)

Install in RH PGA red ***

Buzz Aldrin (LMP)

Okay. It's installed, locked and lock locked.

Buzz Aldrin (LMP)

Oh, wait a minute. Should be—, Stand by.

Buzz Aldrin (LMP)

It's right out in the middle.

Neil Armstrong (CDR)

All right. Check my diverter valves, VERTICAL.

Neil Armstrong (CDR)

Hold this … in your purge valve.

Buzz Aldrin (LMP)

Locked and double locked.

Buzz Aldrin (LMP)

Sure wished I had shaved last night.

Buzz Aldrin (LMP)

*** Got your mikes where you want them?

Neil Armstrong (CDR)

Verify PLSS mode select in AR.

Buzz Aldrin (LMP)

Verified.

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Spoken on July 21, 1969, 1:51 a.m. UTC (50 years, 1 month ago). Link to this transcript range is: Tweet

Michael Collins (CMP)

I don't know if you guys can read me on VHF, but you sure sound good down there.

Buzz Aldrin (LMP)

All right. The vent window is clear. And remove LEVA from the engine cover. Verify EV visor is attached.

Buzz Aldrin (LMP)

How's the COMM now, Houston? Over.

Bruce McCandless (CAPCOM)

Buzz, this is Houston. The COMM is very good. You are coming in loud and clear, and Mike passes on the word that he is receiving you and following your progress with interest.

Neil Armstrong (CDR)

Got all the material up in the back?