4S7AB — 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 4S7AB, decoded by SO8OO in southeastern Poland. 118 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-16.
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 118 FT8 messages attributed to 4S7AB as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (86%), followed by 40 m (14%). Several six-hour UTC windows tied for the largest share (52%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-10-16 00:36 UTC
Observed FT8 message patterns
- Attributed sample
- 118 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -19 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 24.
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 4S7AB in decoded directed-looking exchanges:
Most frequent locator attributed to 4S7AB
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
- NJ07 · 53 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,200 km (approx.)
- Last such locator decoded
- 2026-10-16 00:36 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 | 4S7AB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 00:37 | 40m | - / - | DK1UJ | -12 / - | 2 | Partial capture |
| 10-16 00:37 | 40m | - / - | G3TFL | -3 / - | 11 | Partial capture |
| 10-16 00:34 | 40m | - / -10 | IZ8EYN | -14 / - | 4 | Partial capture |
| 10-16 00:34 | 40m | -10 / - | AA4NP | -19 / -18 | 3 | ✓ Closing observed |
| 10-16 00:32 | 40m | - / - | RX9WM | -5 / - | 2 | Partial capture |
| 10-16 00:32 | 40m | - / - | R4FDK | -3 / - | 10 | Partial capture |
| 10-16 00:27 | 40m | - / - | IW8BZE | -22 / - | 6 | Partial capture |
| 10-16 00:27 | 40m | -10 / - | NA3M | - / -22 | 2 | ✓ Closing fragment |
| 10-16 00:26 | 40m | - / - | UA9SY | -8 / - | 4 | Partial capture |
| 10-16 00:26 | 40m | - / - | RZ4FWA | -11 / - | 4 | Partial capture |
| 10-08 17:58 | 40m | - / - | EA5GS | -4 / - | 7 | Partial capture |
| 10-08 17:54 | 40m | - / - | CT3MD | -18 / - | 4 | Partial capture |
| 10-08 17:50 | 40m | - / -20 | G0TYS | -6 / - | 7 | Partial capture |
| 10-08 17:47 | 40m | - / - | R4HMI | -11 / - | 5 | Partial capture |
| 10-08 17:32 | 40m | - / -15 | R2GDV | -16 / - | 3 | ✓ Closing fragment |
| 10-08 17:29 | 40m | - / -17 | EC1ALT | -12 / - | 2 | Partial capture |
| 10-08 17:27 | 40m | - / - | 4Z5OZ | -17 / - | 2 | ✓ Closing fragment |
| 10-06 00:31 | 40m | - / - | LZ5ZI | -6 / - | 2 | Partial capture |
| 10-06 00:31 | 40m | - / -21 | PT7YB | -2 / - | 3 | ✓ Closing fragment |
| 10-06 00:21 | 40m | - / -10 | WA1T | -5 / - | 3 | ✓ Closing fragment |
| 09-19 14:39 | 40m | - / - | RD6OZ | +1 / - | 10 | Partial capture |
| 09-19 14:16 | 40m | - / -22 | R6YY | +2 / - | 4 | ✓ Closing fragment |
| 09-19 14:06 | 40m | - / -19 | RY3D | -7 / - | 2 | Partial capture |
| 08-31 20:02 | 40m | - / - | EA5KT | -14 / - | 4 | Partial capture |
| 08-31 19:49 | 40m | - / - | EA5KT | -14 / - | 14 | Partial capture |
| 08-31 19:35 | 40m | - / - | EA5KT | -11 / - | 13 | Partial capture |
| 08-31 19:24 | 40m | - / -15 | DL5BTE | +1 / - | 3 | Partial capture |
| 08-31 19:23 | 40m | - / -16 | IT9SMU | -11 / - | 3 | ✓ Closing fragment |
| 08-31 19:20 | 40m | - / -23 | G0FWX | 0 / - | 6 | ✓ Closing fragment |
| 08-31 19:20 | 40m | - / - | SP2FNC | -3 / - | 3 | Partial capture |
| 08-31 19:20 | 40m | - / -23 | UR5KC | +13 / - | 4 | ✓ Closing fragment |
| 08-31 19:19 | 40m | - / - | DC8SM | -9 / - | 8 | Partial capture |
| 08-31 19:19 | 40m | - / -18 | DL5BTE | +4 / - | 4 | Partial capture |
| 08-31 19:13 | 40m | - / - | DL3BQA | +6 / - | 4 | Partial capture |
| 08-31 19:11 | 40m | - / -20 | OZ6G | +7 / - | 8 | ✓ Closing fragment |
| 08-31 19:11 | 40m | - / - | SP2FTL | +3 / - | 6 | Partial capture |
| 08-31 19:08 | 40m | - / -25 | SP5CTY | +4 / - | 6 | ✓ Closing fragment |
| 08-31 19:08 | 40m | - / -23 | IK2WRI | -2 / - | 8 | Partial capture |
| 08-31 19:04 | 40m | - / - | UW5IM | +12 / - | 2 | Partial capture |
| 08-31 19:02 | 40m | - / - | OK2WO | -2 / - | 2 | Partial capture |
| 08-31 19:00 | 40m | - / - | DL9FCK | -5 / - | 2 | Partial capture |
| 08-31 18:54 | 40m | - / - | R3PI | -3 / - | 3 | ✓ Closing fragment |
| 08-31 18:49 | 40m | - / -8 | R6YG | -3 / - | 3 | Partial capture |
| 08-20 13:00 | 20m | - / - | RA9LY | -14 / - | 2 | Partial capture |
| 08-16 16:04 | 20m | - / +1 | F6ASS | -3 / - | 4 | Partial capture |
| 08-03 01:32 | 80m | - / - | SP4DLD | +9 / - | 3 | Partial capture |
| 07-29 19:53 | 40m | - / - | R4FV | -14 / - | 2 | ✓ Closing fragment |
| 07-29 19:49 | 40m | - / -16 | RX3ASQ | -18 / - | 3 | ✓ Closing fragment |
| 07-29 19:43 | 40m | - / -13 | F5VHQ | -2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 003715 -12 280 4S7AB DK1UJ JO31 003715 -10 1828 4S7AB 4Z1GY KM72 003745 -3 827 4S7AB R4FDK LO23 003745 -14 2513 4S7AB G3TFL IO91 003745 -11 280 4S7AB DK1UJ JO31 003815 -8 827 4S7AB R4FDK LO23 003815 -6 722 4S7AB G3TFL IO91 (x9)
UTC dB Audio Message 160400 -6 967 4S7AB F6ASS +01 (x4) 125030 -12 1479 4S7AB RA8AM -15 130030 -14 1662 4S7AB RA9LY MO27 (x2)
UTC dB Audio Message 013245 +8 1862 4S7AB SP4DLD KO13 (x3)
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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