R5DT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R5DT, decoded by SO8OO in southeastern Poland. 5,190 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 87 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-06.
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 5,190 FT8 messages attributed to R5DT as the transmitting token by decoded message structure across 87 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (51%), followed by 40 m (26%) and 80 m (17%). Most decodes (53%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-10-06 16:32 UTC
Observed FT8 message patterns
- Attributed sample
- 5,190 messages
- Active dates
- 87 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -13.5 to +15 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 331, moderate (-15 to -9 dB) 966, strong (≥ -8 dB) 3,893.
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 R5DT 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 R5DT
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
- KO94 · 2,422 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,273 km (approx.)
- Last such locator decoded
- 2026-10-06 16:31 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 | R5DT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 16:31 | 160m | +8 / - | R3RB | - / -16 | 3 | ✓ Closing fragment |
| 10-06 16:23 | 160m | +8 / - | R9CS/P | - / - | 8 | Partial capture |
| 10-06 16:22 | 160m | +6 / - | <...> | - / - | 2 | Partial capture |
| 10-06 16:18 | 80m | +16 / - | RM6OB | - / -15 | 2 | Partial capture |
| 10-06 15:50 | 80m | +13 / -1 | RK4HS | -22 / -2 | 3 | ✓ Full exchange observed |
| 10-06 15:48 | 80m | +20 / -4 | RU4F | -4 / -1 | 4 | ✓ Full exchange observed |
| 10-06 04:07 | 40m | -11 / - | R8KAW/P | - / -11 | 4 | ✓ Closing fragment |
| 10-06 04:03 | 40m | -18 / - | RN8C/M | - / -14 | 6 | Partial capture |
| 10-05 15:47 | 160m | +4 / - | R9CS/P | - / - | 3 | Partial capture |
| 10-05 15:38 | 160m | -2 / - | R9CS/P | - / +2 | 12 | ✓ Closing fragment |
| 10-05 01:36 | 80m | +20 / +5 | WF2A | -14 / -9 | 3 | ✓ Full exchange observed |
| 10-05 01:34 | 80m | - / - | UB3DQR | -14 / - | 3 | Partial capture |
| 10-05 01:34 | 80m | +18 / - | LU7HW | - / -20 | 2 | ✓ Closing fragment |
| 10-05 01:33 | 80m | +16 / - | KA2YNA | -19 / -17 | 3 | ✓ Closing observed |
| 10-05 01:31 | 80m | +16 / +8 | ON4MAP | -11 / -14 | 5 | ✓ Full exchange observed |
| 10-05 01:30 | 80m | - / - | EI3CTB | -8 / - | 7 | Partial capture |
| 10-05 01:30 | 80m | +20 / -19 | R4CFH | +3 / -1 | 5 | ✓ Full exchange observed |
| 10-05 01:28 | 80m | +19 / 0 | EA7Z | +10 / -4 | 4 | ✓ Full exchange observed |
| 10-05 01:26 | 80m | +14 / - | HK3TY | - / -17 | 3 | Partial capture |
| 10-04 14:58 | 80m | +15 / - | RO2E/P | - / -9 | 2 | Partial capture |
| 10-04 01:54 | 40m | - / -2 | MM8FKF | -9 / - | 2 | Partial capture |
| 10-04 01:45 | 80m | +16 / +3 | OK2BB | -4 / -14 | 5 | ✓ Full exchange observed |
| 10-04 01:45 | 80m | +20 / - | RO2E/P | - / -10 | 2 | Partial capture |
| 10-04 01:43 | 80m | +21 / - | RW9MZ | - / -19 | 3 | ✓ Closing fragment |
| 10-04 01:42 | 80m | - / - | F6FHZ | -10 / - | 2 | Partial capture |
| 10-04 01:39 | 80m | +19 / +6 | E75C | +8 / 0 | 5 | ✓ Full exchange observed |
| 10-04 01:39 | 80m | +22 / - | RO2E/P | - / - | 3 | Partial capture |
| 10-04 01:37 | 80m | +18 / -3 | G6PWS | +2 / -6 | 5 | ✓ Full exchange observed |
| 10-04 01:35 | 80m | +21 / -5 | UA3AGW | +22 / +1 | 6 | ✓ Full exchange observed |
| 10-04 01:30 | 160m | +21 / +5 | RK3YWS/P | +1 / 0 | 6 | ✓ Full exchange observed |
| 10-04 01:27 | 160m | +20 / - | EW2ZC | - / +1 | 3 | Partial capture |
| 10-04 01:27 | 160m | +21 / -4 | DL9KM | -13 / -19 | 7 | ✓ Full exchange observed |
| 10-04 01:26 | 160m | +20 / - | UA6FD | - / -16 | 3 | ✓ Closing fragment |
| 10-04 01:24 | 160m | +22 / - | RO2E/P | +4 / +2 | 4 | ✓ Closing observed |
| 10-04 01:22 | 80m | +20 / - | RO2E/P | -9 / -8 | 5 | ✓ Full exchange observed |
| 10-03 01:49 | 80m | - / - | DO5AX | -14 / - | 3 | Partial capture |
| 10-03 01:20 | 80m | +21 / - | LA5ZUA | - / -6 | 3 | ✓ Closing fragment |
| 10-03 01:17 | 80m | +23 / -5 | R80SAA | -16 / -1 | 5 | ✓ Full exchange observed |
| 10-02 01:28 | 80m | +10 / - | VE1PZ | -10 / -16 | 3 | ✓ Closing observed |
| 10-02 01:26 | 80m | +12 / -6 | OD5XX | -2 / -3 | 4 | ✓ Full exchange observed |
| 10-02 01:25 | 80m | +16 / - | ON4MAP | -12 / -16 | 5 | ✓ Full exchange observed |
| 10-02 01:24 | 80m | +4 / - | HI8L | - / -21 | 2 | Partial capture |
| 10-02 01:06 | 80m | +18 / - | SX2LGT | -7 / -6 | 3 | ✓ Full exchange observed |
| 10-02 01:04 | 80m | +17 / - | HI8L | - / -21 | 3 | Partial capture |
| 10-02 01:01 | 80m | - / -13 | W1MLT | -21 / - | 7 | Partial capture |
| 10-02 01:00 | 80m | +18 / - | WP4U | - / -10 | 5 | ✓ Closing fragment |
| 10-01 02:50 | 80m | +16 / - | UA3RBM | - / -5 | 2 | ✓ Closing fragment |
| 10-01 02:49 | 80m | +18 / - | SO100PKP | - / -9 | 2 | Partial capture |
| 10-01 02:39 | 40m | +3 / +1 | ON4VMA | +9 / - | 6 | Partial capture |
| 10-01 02:38 | 40m | +6 / - | DD4U | - / -5 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 155015 +5 1518 CQ R5DT KO94 (x2) 162215 +10 693 <...> R5DT KO94 (x2) 162345 +3 678 R9CS/P R5DT KO94 (x8) 163100 +7 678 R3RB R5DT KO94 (x3)
UTC dB Audio Message 013730 +21 346 WF2A R5DT RR73 013800 +16 346 CQ R5DT KO94 (x2) 154800 +9 595 RD1A/P R5DT KO94 154830 +15 595 CQ R5DT KO94 154845 -5 2432 R5DT RU4F -04 154900 +22 595 RU4F R5DT R-01 154915 -3 2432 R5DT RU4F RR73 154930 +17 595 RU4F R5DT 73 155000 +11 595 RK4HS R5DT -02 155015 -22 1857 R5DT RK4HS R-01 155030 +15 595 RK4HS R5DT RR73 161800 +15 723 RM6OB R5DT KO94 161830 +16 723 CQ R5DT KO94 161930 +17 723 RM6OB R5DT R-15
UTC dB Audio Message 024130 +9 521 R5DT ON4VMA +01 (x2) 015445 -6 998 R5DT MM8FKF -02 (x2) 040315 -21 1731 RN8C/M R5DT KO94 (x2) 040415 -6 1731 CQ R5DT KO94 040445 -19 1731 RN8C/M R5DT KO94 (x4) 040715 -10 1126 R8KAW/P R5DT KO94 (x4)
UTC dB Audio Message 165400 -5 1097 R5DT ON1JP -05 (x2) 165445 +12 2034 CQ R5DT KO94 165500 -1 1097 R5DT ON1JP -05 165515 +9 2034 CQ R5DT KO94 165530 +0 1097 R5DT ON1JP -05 165545 +8 2034 R6DZD R5DT -05 (x2) 165645 +11 2035 CQ R5DT KO94 (x4) 165845 -5 2034 JH1FVE R5DT R-10 (x3)
UTC dB Audio Message 112900 -23 1972 CQ R5DT KO94 112915 +1 2539 R5DT F1PBZ -12 (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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