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  Voice-activated tape recorder aboard Apollo

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Author Topic:   Voice-activated tape recorder aboard Apollo
DFBrunswick
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Posts: 40
From: California, USA
Registered: May 2015

posted 03-08-2017 02:42 AM     Click Here to See the Profile for DFBrunswick   Click Here to Email DFBrunswick     Edit/Delete Message   Reply w/Quote
On all the Apollo missions, astronauts had two kinds of voice communication with Mission Control. There was what was called the "hot mic," which meant that the astronauts' voices could be heard by the general public as well as Mission Control. And there was a private channel with Mission Control that excluded the general public. But there was also a voice-activated tape recording system aboard the Command Module as well I believe. So if this is correct, then it appears that every word spoken by the astronauts in the course of a flight was completely recorded. Is this true?

And if so, what about when the astronauts were in the lunar module? Did the LM have a voice-activated tape recording system as well? And if so, were the recordings retrieved by the astronauts before they discarded the LM?

nasamad
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Posts: 2141
From: Essex, UK
Registered: Jul 2001

posted 03-08-2017 10:35 AM     Click Here to See the Profile for nasamad   Click Here to Email nasamad     Edit/Delete Message   Reply w/Quote
I'm not sure about your first question, but I'm sure someone here will be able to help.

Regarding your second question. This should more than help with details: The Mission Transcript Collection.

Most of the Apollo missions produced four transcripts per flight. These included the onboard voice data recorder transcripts made from the Data Storage Equipment (DSE) on the Command Module (CM), and the Data Storage Electronics Assembly (DSEA) onboard the Lunar Module (LM)...

SpaceAholic
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Posts: 4494
From: Sierra Vista, Arizona
Registered: Nov 1999

posted 03-08-2017 12:33 PM     Click Here to See the Profile for SpaceAholic   Click Here to Email SpaceAholic     Edit/Delete Message   Reply w/Quote
I have details on the DSE and how it functioned here.

DFBrunswick
Member

Posts: 40
From: California, USA
Registered: May 2015

posted 03-08-2017 11:20 PM     Click Here to See the Profile for DFBrunswick   Click Here to Email DFBrunswick     Edit/Delete Message   Reply w/Quote
That was great stuff. Thank you! Are the transcripts edited?

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