priyom.org

E10

Enigma ID E10

Name Mossad / NATO Alphabet
Frequencies Many different frequencies spanning 2 to 23 MHz
Status Inactive
Voice Female, automated, with odd pronunciation of certain phonetics, the last letter in each group was inflected
Emission mode USB + carrier. Rarely: AM, USB.
Location Tel Aviv, Israel
Activity pages

Known counterpart stations

Last heard on March 1, 2011 after uninterrupted operation since 1970s.

Null format:

EZI 2
3-letter ID  
Repeated for 3 minutes

Test transmission:

YHF 1
3-letter ID  
Repeated for extended periods of time

Rarely other suffixes similar to above were broadcast. Their meaning remains unknown.

Traffic format:

Intro Message   Message Outro
YHF Message Group 91 Text MDMGI QJBWU RSFFT ... POIXL End of message Repeat Message Group 91 Text MDMGI QJBWU RSFFT ... POIXL End of message End of transmission
3-letter ID   Amount of 5-letter groups in the message   5-letter single groups       Amount of 5-letter groups in the message   5-letter single groups    
Repeated for 3 minutes Repeated twice Repeated twice Repeated twice     Repeated twice Repeated twice Repeated twice Repeated twice      

All callsigns and groups were spoken using the NATO phonetic alphabet.

If more than one message was to be transmitted, the intro would have been followed by the amount of messages, spoken as "# messages". Each message would have been transmitted one after another, and repeated altogether at the end, rather than each separately.

For much of its life E10 transmitted 24 hours a day, always several messages at once. Seven callsigns had regular, predictable schedules and high amount of traffic - ART, EZI, FTJ, JSR, PCD, ULX, YHF. Each station carried messages for different areas, as seen in highly varied frequency usage. These always started at either the full hour, or half hour. Two regular stations started at the 15-minute mark - KPA and MIW, and three at 45 minutes past - CIO, SYN, VLB - and instead used frequencies drawn from a pool. Messages were typically sent on two or three different time slots, and were sometimes repeated for several days before changing.

A number of callsigns were never observed with messages, instead sent their call for hours, sometimes with suffixes. These callsigns were ABC, BAY, FDU, GBZ, HNC, NDP, OEM, ROV, TMS and ZWL. Possibly tests or deep cover operations.

Interesting feature of E10 traffic was lower amount of messages on Fridays and Saturdays, presumably giving a day off to orthodox Islamic and Jewish recipients, respectively.

Schedules and frequencies

Until March 2010, the schedule for the seven main callsigns was the following. Note that JSR shut down in November 2007, and FTJ in July 2008.

UTC ART EZI FTJ JSR PCD ULX YHF
00:00 3415 5435                 3150 4270         2844 3840  
00:30 3417 5437                 3150 4270 6498 2743 4880        
01:00       6840 9130 11565 2626 4461           6270 7760        
01:30 3415 5435   6840 9130 11565                     5820 7918  
02:00 3415 5435   6840 9130 11565               2743 4880   5820 7918 9202
02:30       6840 9130 11565         3150 4270   2743 4880   4560 5820 7918
03:00       9130 11565   2626 4461     3150 4270              
03:30       6840 9130 11565 2628 4463 2270 5091 3150 4270 6498 2743 4880   3840 4560  
04:00 5435 6986   11565 13533   4461 7358     3150 4270   2743 4880   3840 5820  
04:30 5435 6986   6840 9130 11565 2626 4463     4270 6498 8805 4880 6270   7918 10648  
05:00 3415 5435   11565 13533   4461 7358     4270 6498   4880 6270   10648 14530  
05:30 5435 6986   6840 9130 11565 2626 4463     4270 6498   6270 7760   5820 7918  
06:00 5435 6986   17410 19715   2626 4461           4880 6270   4560 5820  
06:30 5435 6986   9130 11565   4461 7358           6270 7760   5820 7918  
07:00 5435 6986   9130 11565 13533 4461 7358     6498 8805   6270 7760   10648 14530  
07:30 5435 6986   11565 13533   4461 7358     6498 8805   6270 7760   5820 7918  
08:00 5435 6986         4461 7358     6498 8805   6270 7760        
08:30 5435 6986   17410 19715   4461 7358     6498 8805   6270 7760   7918 10648  
09:00 5435 6986   13533 17410   4461 7358     6498 8805   6270 7760   5820 7918  
09:30       17410 19715           6498 8805   6270 7760   5820 7918  
10:00 5435 6986   11565 13533   4461 7358     6498 8805         7918 9202  
10:30             4461 7358     6498 8805   6270 7760   5820 7918  
11:00 5435 6986         4461 7358           6270 7760   5820 7918  
11:30 5435 6986   11565 13533           6498 8805         5820 7918  
12:00 5435 6986   13533 15980   4461 7358 5091 7540       6270 7760   9202 10648  
12:30 5435 6986   13533 15980 17410 4461 7358 5091 7540 6498 8805   6270 7760        
13:00 5435 6986   13533 17410 19715 4461 7358 5091 7540 6498 8805   6270 7760   5820 7918  
13:30 5435 6986   15980 17410   4461 7358 5091 7540 6498 8805   6270 7760   5820 7918  
14:00 5435 6986   19715 23740   4461 7358 5091 7540 4270 6498   6270 7760   5820 7918  
14:30 5435 6986   11565 13533   4461 7358 5091 7540 6498 8805   4880 6270   7918 10648  
15:00 3415 5435   13533 15980   4461 7358 2270 5091 4270 6498   6270 7760   5820 7918  
15:30 3415 5435   17410 19715   2626 4461 5091 7540 6498 8805   6270 7760   5820 7918  
16:00 3415 5435   11565 13533   4461 7358 5091 7540 4270 6498   4880 6270 7760 7918 10648  
16:30 3415 5435   11565 13533   2626 4461 2270 5091 4270 6498   4880 6270   4560 5820  
17:00 3415 5435   11565 13533   4461 7358 5091 7540 4270 6498 8805 4880 6270   4560 5820  
17:30 3415 5435   9130 11565 13533 2626 4461 2270 5091 6498 8805   2743 4880   3840 4560  
18:00 3415 5435   6840 9130 11565 2626 4461 2270 5091 4270 6498   2743 4880   5820 7918  
18:30 3415 5435   9130 11565 13533 2626 4461 2270 5091 3150 4270   4880 6270 7760 9202 10648  
19:00 5435 6986   6840 9130 11565 2626 4463 5091 7540 3150 4270   2743 4880   4560 5820  
19:30 3415 5435 6986 6840 9130 11565 2626 4461 2270 5091 3150 4270   4880 6270   5820 7918  
20:00 3417 5435   9130 11565 13533 2626 4461 2270 5091 3150 4270   2743 4880   5820 7920  
20:30 3415 5435   6840 9130 11565 2626 4461 5091 7540 3150 4270   4880 6270   7918 9202  
21:00 3415 5435   11565 13533   4461 7358 2270 5091 4270 6498   2743 4880   4560 5820  
21:30 3415 5435   6840 9130 11565 2626 4461 2270 5091 3150 4270 6498 2743 4880   4560 5820  
22:00 3415 5435   6842 9130 11565 2626 4461 2270 5091 3150 4270   4880 6270   3840 5820  
22:30 3415 5435   9130 11565       2270 5091 4270 6498   2743 4880   3840 4560  
23:00 3415 5435         2626 4461     3150 4270   4880 6270   3840 4560  
23:30 3415 5435   6840 9130 11565 2626 4461     3150 4270              

In March 2010, the schedule was changed to the following:

UTC ART EZI PCD ULX YHF
00:00               4560  
00:30 3415 4165     4270        
01:00     7690            
01:30 3415 5435           4560  
02:00 3415 5435           3840  
02:30               3840 4560
03:00         3150 4270      
03:30     6840            
04:00         3150 4270      
04:30               5820  
05:00                  
05:30               7918  
06:00                  
06:30     6840 7690          
07:00                  
07:30                  
08:00                  
08:30                  
09:00                  
09:30                  
10:00                  
10:30                  
11:00                  
11:30                  
12:00               10648  
12:30     13533 15980          
13:00     9202            
13:30               10648  
14:00               7918  
14:30     7690            
15:00         6498        
15:30             5170    
16:00 5435                
16:30 4560             4560  
17:00 3415 5435              
17:30             5435    
18:00     6840            
18:30         4270        
19:00         4270        
19:30         4270     5820  
20:00             4880    
20:30     9130            
21:00         4270        
21:30             4270    
22:00 5435                
22:30     6840            
23:00             4880    
23:30         4270        

CIO, KPA, MIW, SYN and VLB (all shut down July 2007) picked the transmission frequencies from a pool: 1735, 2120, 2515, 2540, 2953, 3090, 3270, 3485, 3640, 4165, 4360, 4665, 4780, 5170, 5230, 5380, 5435, 5530, 5629, 6370, 6658, 6745, 6930, 6986, 7445, 7605, 7613, 7690, 7811, 8025, 8127, 8465, 8641, 8805, 9270, 9382, 10125, 10352, 10820, 10970, 12376, 12747, 12950, 13190, 13921, 14000, 14750, 14866, 15016, 17170, 17966, 18177 kHz.

While ABC, BAY, FDU, GBZ, HNC, NDP, OEM, ROV, TMS and ZWL never had schedules, these callsigns often reused frequencies:

  • ABC - 6428, 6528, 10352 kHz
  • BAY - 5530 kHz
  • FDU - 4418, 6211 kHz
  • GBZ - 5170 kHz
  • HNC - 4110, 6575 kHz
  • NDP - 6658 kHz
  • OEM - 5339, 6911 kHz
  • ROV - 4604, 6438, 6911 kHz
  • TMS - 4015, 5000, 5339, 14000 kHz
  • ZWL - 3940 kHz
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