CT3MD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving CT3MD, decoded by SO8OO in southeastern Poland. 8,760 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-07.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 8,760 FT8 messages attributed to CT3MD as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (53%), followed by 40 m (18%) and 80 m (15%). The busiest six-hour window was 23:00-05:00 UTC, containing 41% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-10-07 04:56 UTC
Observed FT8 message patterns
- Attributed sample
- 8,760 messages
- Active dates
- 32 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -15 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 730, moderate (-15 to -9 dB) 3,369, strong (≥ -8 dB) 4,661.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with CT3MD in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to CT3MD
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- IM13 · 4,542 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,645 km (approx.)
- Last such locator decoded
- 2026-10-07 04:56 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | CT3MD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-07 07:50 | 40m | - / -11 | OT8T | -1 / - | 3 | ✓ Closing fragment |
| 10-07 07:45 | 40m | - / -17 | G4DBW | -12 / - | 2 | Partial capture |
| 10-07 06:56 | 40m | - / -13 | F5MXH | -7 / - | 2 | ✓ Closing fragment |
| 10-07 06:37 | 40m | - / -17 | DK5UR | -19 / - | 2 | Partial capture |
| 10-07 06:26 | 40m | - / -22 | DL7DL | -4 / - | 2 | Partial capture |
| 10-07 06:13 | 40m | - / - | 9A2RI | +5 / - | 11 | Partial capture |
| 10-07 06:02 | 40m | - / -18 | DL9CE | -8 / - | 3 | Partial capture |
| 10-07 05:55 | 40m | - / -12 | IZ0RPS | -4 / - | 4 | ✓ Closing fragment |
| 10-07 05:32 | 40m | - / -24 | OE3HPT | -2 / - | 2 | ✓ Closing fragment |
| 10-07 05:23 | 40m | - / -13 | DL2MIJ | +12 / - | 2 | ✓ Closing fragment |
| 10-07 05:22 | 40m | - / -11 | DL1MC | 0 / - | 3 | ✓ Closing fragment |
| 10-07 05:19 | 40m | - / -10 | LZ2VQ | -8 / - | 4 | ✓ Closing fragment |
| 10-07 05:16 | 40m | - / -9 | 9A5AZK | -12 / - | 3 | ✓ Closing fragment |
| 10-07 05:10 | 40m | - / -21 | IQ6MW | -4 / - | 2 | Partial capture |
| 10-07 05:02 | 40m | - / -9 | UA3IDQ | -18 / - | 3 | Partial capture |
| 10-07 04:56 | 40m | -12 / - | V51PJ | - / - | 2 | Partial capture |
| 10-07 04:53 | 40m | -13 / -16 | UA3YPS | -8 / -18 | 9 | ✓ Full exchange observed |
| 10-07 04:49 | 40m | - / - | TA3NK | -10 / - | 4 | Partial capture |
| 10-07 04:49 | 40m | -9 / 0 | YO9CSM | +9 / -1 | 6 | ✓ Full exchange observed |
| 10-07 04:46 | 40m | -9 / - | W2MXL | - / -15 | 4 | Partial capture |
| 10-07 04:43 | 40m | -8 / - | W0DET | - / - | 4 | Partial capture |
| 10-07 04:41 | 40m | -10 / - | HB9HRG | - / - | 4 | Partial capture |
| 10-07 04:39 | 40m | -11 / - | IW6CAE | - / - | 2 | Partial capture |
| 10-07 04:38 | 40m | -14 / - | YO3KWJ | - / -6 | 2 | Partial capture |
| 10-07 04:36 | 40m | -11 / - | N7TP | - / -23 | 3 | ✓ Closing fragment |
| 10-07 04:35 | 40m | - / - | EA2EYJ | -8 / - | 3 | Partial capture |
| 10-07 04:35 | 40m | -10 / - | W9MDM | - / -1 | 3 | ✓ Closing fragment |
| 10-07 04:34 | 40m | - / - | TA3NK | -9 / - | 3 | Partial capture |
| 10-07 04:31 | 40m | -11 / - | DL4HTK | - / -22 | 3 | ✓ Closing fragment |
| 10-07 04:31 | 40m | - / - | EA2EYJ | -9 / - | 3 | Partial capture |
| 10-07 04:29 | 40m | -12 / - | IN3HBF | - / -18 | 2 | ✓ Closing fragment |
| 10-07 04:29 | 80m | - / - | KY2J | -12 / - | 2 | Partial capture |
| 10-07 04:28 | 40m | -13 / - | N3UBI | - / 0 | 2 | ✓ Closing fragment |
| 10-07 04:27 | 40m | -10 / - | KF0KBL | - / -12 | 2 | ✓ Closing fragment |
| 10-07 04:24 | 40m | -10 / - | K2YF | - / -4 | 2 | ✓ Closing fragment |
| 10-07 04:23 | 40m | -12 / - | F5LZN | - / -8 | 2 | ✓ Closing fragment |
| 10-07 04:22 | 40m | -11 / - | KF7IO | - / -13 | 2 | ✓ Closing fragment |
| 10-07 04:21 | 40m | -9 / - | KA1RL | - / -9 | 2 | ✓ Closing fragment |
| 10-07 04:20 | 40m | -7 / - | NT4J | - / -11 | 2 | ✓ Closing fragment |
| 10-07 04:17 | 40m | -10 / - | MW0ACX | - / -20 | 4 | Partial capture |
| 10-07 04:15 | 40m | -9 / - | KE5YYC | - / -14 | 2 | ✓ Closing fragment |
| 10-07 04:14 | 40m | -10 / - | KT4DZ | - / -8 | 2 | ✓ Closing fragment |
| 10-07 04:12 | 40m | -11 / - | WR7T | - / -14 | 3 | Partial capture |
| 10-07 04:12 | 40m | - / - | 4X5CG | -16 / - | 2 | Partial capture |
| 10-07 04:11 | 40m | -12 / - | KD8VYT | - / -9 | 2 | ✓ Closing fragment |
| 10-07 04:08 | 40m | -14 / -5 | R6ZB | -8 / -12 | 4 | ✓ Full exchange observed |
| 10-07 04:08 | 40m | -14 / -4 | UZ5CA | -2 / -1 | 4 | ✓ Full exchange observed |
| 10-07 04:06 | 40m | -10 / - | E75BO | - / -19 | 3 | ✓ Closing fragment |
| 10-07 04:04 | 40m | -12 / - | W4GIV | - / -23 | 4 | Partial capture |
| 10-07 04:03 | 40m | -17 / -3 | EA2EYJ | -14 / -11 | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 061730 +7 2855 CT3MD 9A2RI JN65 (x3) 062630 -4 2051 CT3MD DL7DL -22 (x2) 063730 -20 1998 CT3MD DK5UR -17 (x2) 064330 -18 1783 CT3MD PD0MNO -14 065630 -7 1224 CT3MD F5MXH -13 (x2) 074530 -13 2341 CT3MD G4DBW -17 (x2) 075000 +1 839 CT3MD OT8T JO21 (x3)
UTC dB Audio Message 223845 -16 2480 CT3MD SP5DAA KO02 223930 -5 1966 CT3MD YO7SY KN14 223945 -19 2480 CT3MD SP5DAA KO02 224000 -2 1967 CT3MD YO7SY R-11 224015 -10 1122 YO7SY CT3MD RR73 224015 -14 2480 CT3MD SP5DAA KO02 224030 -2 1966 CT3MD YO7SY 73 224045 -20 2480 CT3MD SP5DAA KO02 224200 -14 1122 CT3MD DO8JB JO32 (x2) 224300 -13 2075 CT3MD DH1TS R+01 (x2) 225330 -14 1123 CT3MD DO7KGB JO72 042900 -15 888 CT3MD KY2J FN31 (x2)
UTC dB Audio Message 201930 -4 529 CT3MD G3RLX -04 201945 -8 1175 G3RLX CT3MD R-06 202000 -3 529 CT3MD G3RLX RR73 202015 -4 1175 G3RLX CT3MD 73 202100 -5 1175 L8BJP CT3MD IM13 (x4) 202400 -7 1175 OZ5AGJ CT3MD IM13 (x2) 202445 -13 1981 CT3MD OZ5AGJ +11 202500 -4 1176 OZ5AGJ CT3MD R-06 202515 -15 1981 CT3MD OZ5AGJ RR73 202530 -3 1175 OZ5AGJ CT3MD 73 202630 -7 1175 IT9ILM CT3MD IM13
UTC dB Audio Message 013715 -10 988 HB9CXZ CT3MD IM13 013730 +10 2390 CT3MD HB9CXZ +05 013745 -6 988 HB9CXZ CT3MD R-04 013800 +8 2390 CT3MD HB9CXZ RR73 013815 -6 989 HB9CXZ CT3MD 73 214745 -16 1309 ES5NC CT3MD IM13 (x7) 215330 -10 2206 MW0DNF CT3MD R-19 215345 -18 2207 CT3MD MW0DNF RR73 215400 -13 2207 MW0DNF CT3MD 73
UTC dB Audio Message 150330 -15 1006 F4NPE CT3MD +09 151200 -14 1006 G3YKI CT3MD -05 (x2) 151300 -14 1007 YO2LLL CT3MD -04 (x2) 151600 -16 1007 IZ2JPN CT3MD RR73 151630 -17 1007 PY6ZL CT3MD IM13 (x2) 161900 -11 920 CT3MD IS0LJG R+34 162045 -15 1094 DL9FFM CT3MD -02 (x2) 162215 -12 1094 DN9FUN CT3MD -07 (x2) 162345 -16 1094 N1ERA CT3MD IM13 162445 -18 1094 N3FMC CT3MD R-25
UTC dB Audio Message 130430 +0 2609 CT3MD R7ZY KN98 130445 -5 866 SV1TRJ CT3MD IM13 130500 -2 2609 CT3MD R7ZY KN98 130515 -5 866 R7ZY CT3MD -14 130530 -2 2609 CT3MD R7ZY R-09 130530 -12 928 CT3MD PC5H JO23 130545 -1 866 R7ZY CT3MD -14 130600 +2 2609 CT3MD R7ZY R-12 130615 +0 866 R7ZY CT3MD RR73 130630 +2 2610 CT3MD R7ZY 73 130645 -4 866 YO3NSS CT3MD IM13 (x3) 132415 -1 865 RC3C CT3MD IM13 (x2)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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