Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: Morse mystery from 1947  (Read 527 times)
K0OD
Member

Posts: 2522




Ignore
« on: May 24, 2009, 09:33:24 AM »

"The crew maintained Morse-code radio contact with the ground for the duration of the flight, and just before it was scheduled to arrive they signalled their approach. But then a mysterious signal was received at Santiago airfield—comprising the letters "S-T-E-N-D-E-C". Aware of no such Morse abbreviation, the radioman at Santiago requested a repeat of the signal, and the same cryptic message was received twice more. This inexplicable message was the last one received from flight CS-59"

Then The Star Dust vanished for 50 years

http://www.damninteresting.com/?p=876

Logged
AH6GI
Member

Posts: 60




Ignore
« Reply #1 on: May 24, 2009, 12:04:10 PM »

My guess is STENDEC is

ST  = V but the spacing is off.
EN  = R
DE  = DE
C   = C

V = warming up the wrist.

R = Received, as some say these days. I've heard EN for R since the 1960's.  

DE C perhaps de Cs-59 or de Cook.

donnno, it's a mystery.

de ah6gi/4
Logged
WX7G
Member

Posts: 5918




Ignore
« Reply #2 on: May 26, 2009, 10:06:11 AM »

If this is the incident I think it was, my question is was there a major ionospheric disturbance that day? There should be records of this. And there should be amateur radio logs that note a disturbance if there was one.

If there was a major disturbance that caused a large near-DC magnetic field in the ionosphere it could have alterned the aircraft compasses. It could also have led to a long delayed echo (LDE) of the radio transmission. These are said to come in two time delays for such close transmissions. 0.7 and 3 seconds. Could a 3 second LDE could cause an overlap of STARDUST to be copied as STENDEC?
Logged
K0OD
Member

Posts: 2522




Ignore
« Reply #3 on: May 26, 2009, 12:09:20 PM »

Surely radio disruptions would have been noted at that time. This was a well publicized mystery in South America and the UK (because of the missing British Messenger).

"Could a 3 second LDE could cause an overlap of STARDUST to be copied as STENDEC?"

Clever idea, but reports indicate STENDEC was copied three times and strongly.  
Logged
K5END
Member

Posts: 1309




Ignore
« Reply #4 on: May 26, 2009, 01:14:20 PM »



...or maybe the radio op's bug was malfunctioning and he did not know it...
Logged
WX7G
Member

Posts: 5918




Ignore
« Reply #5 on: May 26, 2009, 02:54:50 PM »

They used hand keys on aircraft. STENDEC? Isn't it obvious?
Logged
K5END
Member

Posts: 1309




Ignore
« Reply #6 on: May 27, 2009, 01:23:52 PM »

.
.
"Isn't it obvious?"

Isn't what obvious? <g>
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!