Transmission 24

On April 28th, 2012, the user Umbra posted transmission twenty four in the Spreaker.com website. The transmission starts with a series of horns followed by an excerpt of The Peace Patrol. The body of the transmission contained a series of numbers as well as an encoded SSTV image.

Decoded Message
This message was double encoded: First, the 22 character string at the beginning was encrypted with a a Vigenère cipher. The key for this section was the following verse from the song in transmission 23: It blows across the ocean blue from anywhere to me. The rest of the message was encrypted with a Playfair cipher. The keyword for this message was THE WIND. After decoding, the message reads: CHARLIE ONE UMBRA CHARLIE ONE UMBRA BRAVO VIRGIL VIRGIL CHARON PAPA 0 1 2 3 4 5 6 7 8 9 NEXT 38 EXTRACTION FROM HOST NATION DISCSEMINATION OF INFORMATION WETWORKS ON STATION DROP POINT RECONNAISSANCE CONDUCTED IN SK SUSPECT DEVICE IS DISRUPTING SLEEP AT FOB SCHRADER FRIENDLY FORCES COMPLAIN OF A HUMMING NOISE THAT INTENSIFIES IN THE LATER HOURS OF THE NIGHT AND SOME HAVE CLAIMED TO HEAR WHAT THEY CALL VOICES FROM WITHIN THE CASING ITSELF DISPATCHED TEAM MEDIC TO INVESTIGATE THE AFFECTED INDIVIDUALS BUT RESULTS VARY AND ARE INCONCLUSIVE EACH SED MENTALLY HEALTHY PLEASE ADVISE AS TO NATURE OF CONTENTS SEE YOU IN SK CHARON CHARLIE ONE UMBRA <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;">CHARLIE ONE UMBRA <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;">CHARLIE ONE UMBRA

The SSTV Image
The following image was included in the transmission (album containing denoised image):

<p style="text-align: center;">

<p style="list-style-type: disc; font-size: 13px; font-family: Arial; color: rgb(0, 0, 0); font-weight: normal; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline;"><span style="font-size: 13px; font-family: Arial; color: rgb(0, 0, 0); font-weight: normal; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline;">The picture is a Fairchild A-10 Thunderbolt II (nicknamed “Warthog”). The main use on warfare is CAS (Close Air Support). <span style="font-size: 13px; font-family: Arial; color: rgb(17, 85, 204); font-weight: normal; font-style: normal; font-variant: normal; text-decoration: underline; vertical-align: baseline;">Picture to underside from comparison<span style="font-size: 13px; font-family: Arial; color: rgb(0, 0, 0); font-weight: normal; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline;">.

Original Transcript
<span style="font-size: 13px; font-family: 'Courier New'; color: rgb(0, 0, 0); font-weight: normal; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline;">CHARLIE ONE UMBRA <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;">CHARLIE ONE UMBRA <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;"> BRAVO <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;">18 15 15 01 09 17 08 08 14 21 09 21 12 16 21 13 07 04 12 01 03 00 <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;">00 01 02 03 04 05 06 07 08 09 <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;">16 00 17 00 38 10 17 11 15 15 16 12 13 17 15 08 22 05 20 16 08 22 08 19 14 12 02 21 04 12 20 08 21 24 02 15 15 02 24 08 07 20 21 01 11 15 12 01 09 19 25 16 09 13 15 11 16 04 20 08 14 09 19 14 05 15 19 13 14 06 03 07 14 10 23 09 13 03 14 16 03 10 14 24 07 17 01 13 14 17 00 04 05 08 07 05 10 17 13 00 10 10 01 15 00 09 15 21 21 15 24 24 03 17 09 15 07 04 10 01 09 23 07 15 18 09 22 10 08 01 22 20 16 15 20 04 19 17 13 21 17 03 17 21 25 03 24 03 06 09 08 13 21 05 05 02 08 21 03 09 23 12 19 14 08 15 19 15 01 01 19 17 05 19 23 15 07 16 05 07 07 05 17 00 24 13 20 18 12 01 16 05 02 17 06 14 22 01 20 22 15 11 16 09 04 19 18 14 01 18 20 00 19 23 04 22 20 18 11 24 12 22 00 19 19 21 01 15 19 17 18 12 01 13 25 23 17 13 11 17 04 14 11 25 05 24 08 03 14 12 15 10 23 13 02 18 06 09 14 04 14 19 05 00 16 07 17 14 24 08 06 05 17 15 11 02 02 20 17 01 01 01 06 04 10 05 10 13 17 06 25 25 15 06 22 17 22 15 11 22 04 24 13 21 17 18 05 00 08 07 12 15 15 19 09 01 17 00 17 01 01 23 17 21 15 04 20 24 03 23 03 04 00 10 23 25 21 24 22 18 02 04 10 16 10 15 22 22 00 21 21 17 23 22 11 20 12 00 09 23 08 13 16 12 12 00 13 24 15 03 16 08 13 18 03 16 02 21 19 04 17 19 11 17 22 08 17 15 07 22 16 16 24 15 11 02 01 03 23 23 07 00 04 24 19 14 09 04 05 09 17 00 03 25 12 10 23 21 08 16 02 05 04 11 18 17 13 00 19 21 07 01 16 02 00 25 14 08 21 15 00 25 08 24 02 19 10 19 16 20 16 16 02 10 05 23 00 07 20 <span style="font-size: 13px; font-family: 'Courier New'; color: rgb(0, 0, 0); font-weight: normal; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline;">CHARLIE ONE UMBRA <span style="font-size: 13px; font-family: 'Courier New'; color: rgb(0, 0, 0); font-weight: normal; font-style: normal; font-variant: normal; text-decoration: none; vertical-align: baseline;">CHARLIE ONE UMBRA <span style="font-size:13px;font-family:'Courier New';color:#000000;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;">CHARLIE ONE UMBRA