DF8JO — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving DF8JO, decoded by SO8OO in southeastern Poland. 190 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-04 and 2026-10-30.
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 190 FT8 messages attributed to DF8JO as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (76%), followed by 40 m (15%) and 60 m (7%). Most decodes (52%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-10-30 15:35 UTC
Observed FT8 message patterns
- Attributed sample
- 190 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -20 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 84, strong (≥ -8 dB) 59.
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 DF8JO 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 DF8JO
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
- JO30 · 107 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,053 km (approx.)
- Last such locator decoded
- 2026-10-30 15:34 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 | DF8JO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-30 15:34 | 80m | -14 / -1 | DO1UKR | +1 / - | 4 | ✓ Closing observed |
| 10-30 15:33 | 80m | -11 / - | DG8JT | -16 / - | 4 | Partial capture |
| 10-30 13:27 | 60m | -20 / - | DG8JT | - / +10 | 2 | Partial capture |
| 10-30 13:24 | 60m | -22 / - | PA4CC | +6 / - | 4 | ✓ Closing observed |
| 10-30 13:22 | 60m | - / -14 | DM3XD | -11 / - | 3 | ✓ Closing fragment |
| 10-30 13:21 | 60m | -20 / +9 | OK8DCC | -3 / +7 | 4 | ✓ Full exchange observed |
| 10-30 13:20 | 60m | -20 / -2 | DL1RMY | -15 / +4 | 5 | ✓ Full exchange observed |
| 10-30 13:09 | 80m | - / -2 | DK7ZT | -6 / - | 2 | ✓ Closing fragment |
| 10-25 14:26 | 40m | - / - | DK8EW | -7 / - | 3 | Partial capture |
| 10-25 14:24 | 40m | -14 / - | PE1OID | - / +3 | 2 | ✓ Closing fragment |
| 10-25 14:20 | 40m | -11 / - | F4BJN | - / -8 | 2 | ✓ Closing fragment |
| 10-25 14:19 | 40m | -8 / - | IN3OWY | - / +1 | 2 | ✓ Closing fragment |
| 10-25 14:17 | 40m | -9 / -2 | DL6UCK | -13 / +5 | 6 | ✓ Full exchange observed |
| 10-25 14:17 | 40m | -12 / 0 | DJ1TU | -3 / +10 | 5 | ✓ Full exchange observed |
| 10-25 14:15 | 40m | -14 / - | F3CJ | - / +1 | 2 | ✓ Closing fragment |
| 10-25 14:13 | 40m | -12 / - | DL3IAK | -9 / +6 | 3 | ✓ Closing observed |
| 10-25 14:12 | 40m | -9 / - | DK0KG | - / - | 2 | ✓ Closing fragment |
| 08-15 08:45 | 20m | -4 / - | F5NNN | - / +3 | 3 | Partial capture |
| 08-15 08:37 | 20m | -8 / - | NL8F | - / - | 12 | Partial capture |
| 08-15 08:36 | 20m | - / -3 | RK4FF | -4 / - | 2 | ✓ Closing fragment |
| 08-15 08:33 | 20m | -24 / - | R3BCK | - / +5 | 2 | Partial capture |
| 08-15 08:29 | 20m | -16 / - | NL8F | - / - | 6 | Partial capture |
| 08-15 08:29 | 20m | - / - | RZ4FWA | -20 / - | 3 | Partial capture |
| 08-15 08:27 | 20m | -14 / - | UR5VPR | - / -11 | 2 | ✓ Closing fragment |
| 08-15 08:24 | 20m | -5 / - | BA3NZ | - / -19 | 4 | ✓ Closing fragment |
| 08-14 20:16 | 20m | -14 / - | UR5WCS | - / -23 | 2 | ✓ Closing fragment |
| 08-14 20:12 | 20m | -12 / - | R1ZDG | - / -11 | 2 | Partial capture |
| 08-14 20:11 | 20m | -12 / -10 | CT1BFP | -17 / +7 | 8 | ✓ Full exchange observed |
| 08-14 20:11 | 20m | -12 / - | BA5AN | - / -20 | 2 | ✓ Closing fragment |
| 08-14 20:09 | 20m | -13 / - | 9Y4DG | - / -22 | 2 | Partial capture |
| 08-14 20:07 | 20m | -12 / - | ES6DO | - / -14 | 3 | ✓ Closing fragment |
| 08-14 20:03 | 20m | -10 / - | UX7QV | - / -5 | 6 | ✓ Closing fragment |
| 08-14 19:58 | 20m | - / - | M1FHD | -4 / - | 2 | Partial capture |
| 08-14 19:58 | 20m | -14 / - | BH4ECL | - / -8 | 4 | Partial capture |
| 08-14 19:55 | 20m | -15 / - | BA5AN | - / -15 | 2 | Partial capture |
| 08-14 19:54 | 20m | -16 / - | 9J2FI | - / - | 2 | Partial capture |
| 08-14 19:51 | 20m | -16 / - | BU2FW | - / - | 4 | ✓ Closing fragment |
| 08-14 19:01 | 20m | -3 / - | EA8CVR | - / -8 | 3 | Partial capture |
| 08-14 18:59 | 20m | -4 / - | CU2JX | - / - | 2 | Partial capture |
| 08-14 18:56 | 20m | -3 / +4 | TN8GD | -8 / -2 | 6 | ✓ Full exchange observed |
| 08-14 18:48 | 20m | -10 / - | HB9MZI | - / - | 2 | ✓ Closing fragment |
| 08-14 18:47 | 20m | -2 / - | TN8GD | - / - | 2 | Partial capture |
| 08-14 18:41 | 20m | - / - | EA5OL | -6 / - | 2 | ✓ Closing fragment |
| 08-14 18:38 | 20m | - / -15 | 2E1HAT | -8 / - | 7 | Partial capture |
| 08-14 18:32 | 20m | -2 / - | TA3NK | +5 / -16 | 13 | Partial capture |
| 08-14 18:14 | 20m | - / -11 | UA6YW | +6 / - | 3 | ✓ Closing fragment |
| 08-14 18:10 | 20m | - / -16 | RY7G | +6 / - | 4 | ✓ Closing fragment |
| 08-14 18:07 | 20m | - / -13 | UA3VVA | 0 / - | 3 | ✓ Closing fragment |
| 08-14 18:04 | 20m | - / - | 2W0YOX | -8 / - | 2 | Partial capture |
| 08-13 17:54 | 20m | -12 / - | SM6LKT/7 | - / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 130945 -6 1759 DF8JO DK7ZT -02 (x2) 153300 -11 1509 DG8JT DF8JO JO30 (x3) 153430 -7 1509 CQ DF8JO JO30 153445 -7 967 DF8JO DO1UKR JO43 (x2) 153530 -14 1509 DO1UKR DF8JO RR73 153545 +6 967 DF8JO DO1UKR 73 153545 -16 2227 DF8JO DG8JT +15
UTC dB Audio Message 132145 -20 1544 OK8DCC DF8JO +07 132200 +0 1389 DF8JO OK8DCC R+09 132200 -13 1327 DF8JO DM3XD -14 132230 -5 1389 DF8JO OK8DCC 73 132230 -10 1327 DF8JO DM3XD -14 (x2) 132345 -19 1543 CQ DF8JO JO30 (x2) 132430 +4 335 DF8JO PA4CC JO32 (x3) 132545 -22 1543 PA4CC DF8JO 73 132700 -20 1544 DG8JT DF8JO JO30 (x2) 132900 -17 1543 DK7ZT DF8JO JO30
UTC dB Audio Message 141800 -15 1889 DF8JO DL6UCK JO71 141800 -2 2391 DF8JO DJ1TU 73 141815 -5 1864 DL6UCK DF8JO +05 141830 -11 1890 DF8JO DL6UCK R-02 141845 -13 1864 DL6UCK DF8JO RR73 141900 -8 1890 DF8JO DL6UCK 73 141915 -9 1864 IN3OWY DF8JO +01 (x2) 142015 -13 1864 F4BJN DF8JO -08 (x2) 142400 -16 1863 PE1OID DF8JO R+03 (x2) 142600 -13 1723 DF8JO DK8EW JO62 (x3)
UTC dB Audio Message 083845 -13 1917 NL8F DF8JO JO30 (x3) 084045 -7 1090 CQ DF8JO JO30 084115 -6 1090 NL8F DF8JO JO30 (x7) 084515 +0 630 F5NNN DF8JO +03 (x3) 084715 -12 630 NL8F DF8JO +03
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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