Nixon White House Tapes › Tape 131 › Conversation 131-003

Mizzer phone call on Camp David and Communications security

Tuesday, May 16, 1972 · 12:01 AM–2:26 PM ET · Camp David Study Table · 52 sec

Participants[Unknown person(s)]; Mizzer, John ("Microwave")Conversation131-003 on Tape 131 (tape position 00:02:37–00:03:44)StartTuesday, May 16, 1972 at 12:01 AMEndWednesday, May 17, 1972 at 2:26 PMRecording deviceCamp David Study TableSourceNixon Library record for 131-003 ↗

Technical staff member John “Microwave” Mizzer and an unidentified individual coordinate troubleshooting efforts for communications equipment at the Aspen Lodge at Camp David. The participants discuss ongoing interference issues with secure telephone lines and wideband systems, specifically addressing problems with TEC-13 units. To resolve the persistent crackling on the secure line, they decide to split the mute and initiate a system patch.

  • Camp David
  • Communications security
  • Technical maintenance
  • Secure telephone
  • Equipment troubleshooting

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How about this white band?
Are you still having problems?
Let's see.
No, okay, we got our white bands cleared up, and right now we're playing with TEC-13s.
Cartwheel's got a TEC-13 problem.
There's a spare.
Okay, well, the reason I'm calling is we're on the secure phone calling downtown, and we get that crackling noise.
You do?
Yep.
Okay, let me see.
We've got a patch at the moment here.
Okay, what we have right now is we have the TIC-13 and the frame on the same system.
If we split the mute, that crackling noise would go.
Okay.
But where are you located?
Aspen.
Okay, let's see.
Okay, stand by.
We'll patch it over.
All right, patch it over.
Okay, stand by.
It'll be a minute or so.
All right, then I'll try it again.
I'll call back.
All right.
Okay.

Unknown person(s) and John ("Microwave") Mizzer talked on the telephone at Camp David on an unknown date, sometime between 12:01 am on May 16, 1972 and 2:26 pm on May 17, 1972. The Camp David Study Table taping system captured this recording, which is known as Conversation 131-003 of the White House Tapes.

Conversation No. 131-3

Date: Unknown between May 16 and 17, 1972
Time: Unknown between 12:01 am, May 16 and 2:26 pm, May 17
Location: Camp David Study Table

An unknown man talked with John (“Microwave”) Mizzer.

     Widebands
         -[Forename unknown] Cartwheel [?]
         -613S

     Secure telephone
          -Noise
          -613 and system
          -Location
                -Aspen Lodge
           -A patch
                -Check

                                                                  Conv. No. 131-39
                                                                  Conversation No. (cont.)
                                                                                   131-4

Date: Unknown between May 16 and 17, 1972
Time: Unknown between 12:01 am, May 16 and 2:26 pm, May 17
Location: Camp David Study Table

John (“Microwave”) Mizzer talked with the Camp David operator.

     Request for a call to Sgt. Major [Forename unknown] Petrie

     The Camp David operator talked with an unknown man

     Request for a call to Petrie

Mizzer talked with Petrie.

     Telephone check
          -A patch
          -Local line
          -Noise
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  • 131-001 12:01 AM · 2 min — Unknown person(s) talked on the telephone at Camp David on an unknown date, sometime between 12:01 am on May 16, 1972 and 2:26 pm on May 17, 1972.
  • 131-002 12:01 AM · 23 sec — Unknown person(s) and Camp David operator talked on the telephone at Camp David on an unknown date, sometime between 12:01 am on May 16, 1972 and 2:26 pm on May 17, 1972.
  • 131-004 12:01 AM · 1 min — John ("Microwave") Mizzer, Camp David operator, and unknown person(s) talked on the telephone at Camp David on an unknown date, sometime between 12:01 am on May 16, 1972 and 2:26 pm on May 17, 1972.
  • 024-147 1:05 AM · 6 sec — President Richard M. Nixon and the White House operator talked on the telephone at an unknown time between 1:05 am and 10:11 am.

Conversation 131-003, May 16, 1972. White House Tapes, Richard Nixon Presidential Library and Museum, National Archives. Audio and AI transcript via Easy Nixon, https://www.easynixon.org/tapes/131-003 (accessed October 9, 2026).