M08a
| Enigma ID | M08a |
| Name | |
| Frequencies | 7555, 8010, 8097, 8136 |
| Status | Inactive |
| Voice | N/A |
| Emission mode | LSB; 1000 Hz audio tone |
| Location |
Havana, Cuba
|
| Activity pages |
M08a was the Morse code flavor of the Cuban DGI. Superseded by HM01.
Transmission format:
| Intro | Message #1 | Message #2 | Message #3 | Outro | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DIRTA | AGIGN | NTTNN | DIRTA | = = = | NRWAW UGDTU UNTUI ... | AR AR AR | AGIGN | = = = | DUURW RUTUW DUUTU ... | AR AR AR | NTTNN | = = = | TWTGR TRARG RUDUW ... | AR AR AR | SK |
| Three 5-digit message headers | First header | 150 5-digit single groups, pause every 10 groups |
Second header | 150 5-digit single groups, pause every 10 groups |
Third header | 150 5-digit single groups, pause every 10 groups |
|||||||||
| Repeated for 3 minutes | Repeated 5 times | Repeated 5 times | Repeated 5 times | ||||||||||||
M08a used the following cut number scheme:
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| T | A | N | D | U | W | R | I | G | M |
In the headers, the actual header comprised the first 4 digits, while the last digit was either 1 or 2.
M08a replaced the previous format M08 in 1997. After November 2012, when HM01 was introduced, M08a was relegated to only three time slots - 14:00, 20:00, and 23:00 UTC. The 20:00 UTC slot sometimes carried V02a instead, on either Tuesday or Thursday at the beginning of the month. The latest confirmed full transmission of M08a took place in February 2019.