DF1OY — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF1OY, decoded by SO8OO in southeastern Poland. 161 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-26 and 2026-09-13.
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 161 FT8 messages attributed to DF1OY as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 20 m (12%). Most decodes (83%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (66%); the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-09-13 14:28 UTC
Observed FT8 message patterns
- Attributed sample
- 161 messages
- Active dates
- 17 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -15 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 107, strong (≥ -8 dB) 39.
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 DF1OY 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 DF1OY
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
- JO44 · 72 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,006 km (approx.)
- Last such locator decoded
- 2026-09-13 14:25 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 | DF1OY S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 14:27 | 40m | -10 / - | F5MYK | - / -16 | 2 | ✓ Closing fragment |
| 09-13 14:25 | 40m | -10 / - | PD2MAC/P | - / -3 | 3 | ✓ Closing fragment |
| 09-13 14:23 | 40m | -9 / - | F6FHZ | - / -20 | 2 | ✓ Closing fragment |
| 09-13 14:21 | 40m | -15 / +2 | DL6EL | +5 / +5 | 5 | ✓ Full exchange observed |
| 09-13 14:20 | 40m | -14 / - | IK1MJK/P | - / 0 | 3 | ✓ Closing fragment |
| 09-09 18:35 | 40m | -3 / - | SV9FBT | - / - | 3 | Partial capture |
| 09-09 18:33 | 40m | -3 / - | SV8/F6BLP | - / -9 | 3 | Partial capture |
| 09-09 18:32 | 40m | -8 / - | UT0IN | - / - | 2 | Partial capture |
| 09-07 20:08 | 40m | +8 / -11 | OE6TNO | +2 / -7 | 5 | ✓ Full exchange observed |
| 09-07 20:07 | 40m | 0 / -10 | IU4DTV | -5 / -4 | 3 | ✓ Full exchange observed |
| 09-07 20:04 | 40m | +10 / +3 | 5Q1X | -18 / -12 | 3 | Partial capture |
| 09-07 20:03 | 40m | +6 / -6 | PE1NPS | -1 / - | 4 | ✓ Closing observed |
| 09-07 20:01 | 40m | +3 / - | DC9GT | - / -22 | 2 | ✓ Closing fragment |
| 08-30 20:56 | 40m | - / -2 | UR1CDL | -2 / - | 2 | ✓ Closing fragment |
| 08-30 20:22 | 20m | - / -8 | IU1PFA | -12 / - | 3 | ✓ Closing fragment |
| 08-24 20:52 | 40m | -6 / - | LB6MJ | -4 / +3 | 4 | ✓ Closing observed |
| 08-24 20:50 | 40m | -2 / -4 | DM4ZPJ | +2 / +1 | 5 | ✓ Full exchange observed |
| 08-24 20:48 | 40m | -14 / 0 | DL9KM | -5 / - | 4 | ✓ Closing observed |
| 08-24 20:47 | 40m | -7 / - | EB2EMZ | - / -13 | 2 | Partial capture |
| 08-24 20:46 | 40m | -2 / - | EA5HM | - / -8 | 2 | ✓ Closing fragment |
| 08-24 20:45 | 40m | -6 / - | CT7AXN | - / -10 | 2 | ✓ Closing fragment |
| 08-24 20:43 | 40m | - / -8 | R2EA/P | +3 / - | 3 | Partial capture |
| 08-24 20:42 | 40m | -8 / -7 | YO4NF | +8 / +4 | 4 | ✓ Full exchange observed |
| 08-24 20:39 | 20m | - / - | IZ4JMA | 0 / - | 2 | Partial capture |
| 08-24 20:37 | 20m | - / - | DL1R | -4 / - | 3 | Partial capture |
| 08-24 20:29 | 20m | - / -1 | M7EOI | -8 / - | 3 | ✓ Closing fragment |
| 08-24 20:26 | 20m | - / -9 | IQ4JO | +12 / - | 3 | ✓ Closing fragment |
| 08-24 20:22 | 20m | - / +6 | G1ZOM | -1 / - | 2 | ✓ Closing fragment |
| 08-24 20:20 | 20m | - / -12 | BG7BVI | -15 / - | 2 | ✓ Closing fragment |
| 08-23 13:59 | 20m | -6 / - | US5LD | - / - | 2 | ✓ Closing fragment |
| 08-23 13:57 | 20m | -10 / - | UT2PC | - / - | 2 | Partial capture |
| 08-21 20:55 | 40m | -8 / - | <...> | - / - | 2 | Partial capture |
| 08-21 20:48 | 20m | - / - | KA8YGL | -15 / - | 2 | ✓ Closing fragment |
| 08-21 20:41 | 20m | -14 / - | K0BFG | - / -8 | 2 | Partial capture |
| 08-18 18:05 | 40m | -12 / - | BA7IWL | - / -24 | 7 | Partial capture |
| 08-18 18:04 | 40m | -13 / - | DL2ZJA | -15 / -8 | 2 | Partial capture |
| 08-18 18:00 | 40m | -12 / - | DL1CBS/P | -23 / +2 | 4 | ✓ Full exchange observed |
| 08-18 17:59 | 40m | -14 / - | RX3VF | -17 / +4 | 3 | ✓ Closing observed |
| 08-18 17:56 | 40m | - / - | DL6UM | -11 / - | 2 | ✓ Closing fragment |
| 08-18 17:55 | 40m | - / -3 | DL1EDR | -5 / - | 3 | ✓ Closing fragment |
| 08-18 17:52 | 40m | -18 / - | ON3MOH/P | -7 / - | 3 | ✓ Closing observed |
| 08-17 20:37 | 40m | -12 / - | OZ1ITS | - / -9 | 3 | Partial capture |
| 08-17 20:34 | 40m | - / - | DL6UM | -4 / - | 2 | Partial capture |
| 08-17 20:31 | 40m | - / +2 | IK3/UY7LA | -13 / - | 2 | Partial capture |
| 08-17 20:30 | 40m | -12 / - | DH4BM | - / -6 | 2 | Partial capture |
| 08-17 20:27 | 40m | -12 / -5 | YO9ZIP | -9 / -9 | 5 | ✓ Full exchange observed |
| 08-16 18:16 | 20m | - / -3 | 7X3WPL | -10 / - | 2 | ✓ Closing fragment |
| 08-16 18:02 | 40m | - / +1 | F5MKD | -23 / - | 2 | Partial capture |
| 08-16 18:00 | 40m | - / - | E70SZ | -8 / - | 2 | Partial capture |
| 08-16 17:59 | 40m | -16 / - | RW3C/P | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 142030 -12 911 IK1MJK/P DF1OY R+00 (x2) 142115 +9 726 DF1OY DL6EL JN57 142130 -16 910 DL6EL DF1OY +05 142145 +5 726 DF1OY DL6EL R+02 142200 -14 910 DL6EL DF1OY RR73 142215 +2 726 DF1OY DL6EL 73 142300 -6 911 F6FHZ DF1OY -20 (x2) 142430 -14 910 PG9S DF1OY RR73 142530 -14 910 PD2MAC/P DF1OY JO44 (x3) 142730 -10 910 F5MYK DF1OY -16 (x2)
UTC dB Audio Message 202745 +12 2332 DF1OY IQ4JO 73 202945 -6 952 DF1OY M7EOI IO83 (x3) 203715 -5 2658 DF1OY DL1R JN58 (x3) 203945 -5 532 DF1OY IZ4JMA JN54 (x2) 202245 -14 2175 DF1OY IU1PFA JN44 202245 -24 1687 DF1OY BU2FW RRR 202345 -10 2175 DF1OY IU1PFA R-08 (x2) 203445 -13 1764 DF1OY PY2XAT -07 205030 -11 2765 DF1OY IW5ALZ JN53
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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