9A4BA — 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 9A4BA, decoded by SO8OO in southeastern Poland. 110 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-28 and 2026-10-12.
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 110 FT8 messages attributed to 9A4BA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 20 m (41%). Most decodes (59%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (98%); the estimated median was +9 dB.
Overview
Bands
Last attributed message: 2026-10-12 00:49 UTC
Observed FT8 message patterns
- Attributed sample
- 110 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- +9 dB
- Estimated 10th-90th percentile
- +1 to +13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 108.
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 9A4BA 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 9A4BA
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
- JN95 · 36 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 536 km (approx.)
- Last such locator decoded
- 2026-10-12 00:49 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 | 9A4BA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-12 00:45 | 80m | +12 / - | EA1IOK | -3 / -1 | 10 | Partial capture |
| 10-12 00:44 | 80m | +9 / - | UN2G | -17 / -10 | 3 | ✓ Closing observed |
| 10-12 00:44 | 80m | +8 / -11 | F1IQH | -8 / -20 | 7 | ✓ Full exchange observed |
| 10-12 00:42 | 80m | +12 / -14 | ES2DR | -8 / -8 | 4 | ✓ Full exchange observed |
| 10-12 00:40 | 80m | +7 / - | 9H6C | - / -1 | 3 | ✓ Closing fragment |
| 10-12 00:39 | 80m | +4 / -11 | F5HNQ | +5 / -3 | 6 | ✓ Full exchange observed |
| 10-12 00:37 | 80m | +12 / - | ON4MAP | - / -14 | 2 | Partial capture |
| 10-12 00:36 | 80m | +10 / -13 | DO8JB | +4 / -12 | 4 | ✓ Full exchange observed |
| 10-12 00:34 | 80m | +12 / - | F5HNQ | - / -5 | 2 | Partial capture |
| 10-12 00:33 | 80m | - / - | ON4MAP | -8 / - | 4 | Partial capture |
| 10-12 00:32 | 80m | +13 / - | M0IOY | -2 / +9 | 3 | ✓ Closing observed |
| 10-12 00:32 | 80m | +12 / +6 | IU2THY | -1 / 0 | 8 | ✓ Full exchange observed |
| 10-12 00:31 | 80m | +12 / +3 | ON8FAB | -7 / -5 | 4 | ✓ Full exchange observed |
| 10-12 00:29 | 80m | +10 / - | DO8JB | +1 / -3 | 5 | Partial capture |
| 10-12 00:28 | 80m | +12 / -12 | GM6URC | -15 / -11 | 5 | ✓ Full exchange observed |
| 10-12 00:27 | 80m | +12 / - | CT7AUT | -16 / -7 | 4 | ✓ Closing observed |
| 10-12 00:27 | 80m | +12 / - | EC3A | - / -1 | 2 | ✓ Closing fragment |
| 10-12 00:25 | 80m | +12 / - | T77RN | -1 / -8 | 5 | ✓ Full exchange observed |
| 09-26 05:22 | 80m | +8 / -9 | DO1ID | +6 / - | 3 | Partial capture |
| 09-26 05:21 | 80m | +3 / -17 | MI0NWA | -14 / -11 | 5 | ✓ Full exchange observed |
| 09-26 05:19 | 80m | +1 / -15 | EC5M | -15 / -3 | 4 | ✓ Full exchange observed |
| 09-26 05:16 | 80m | +8 / - | Z62NS | -7 / - | 4 | ✓ Full exchange observed |
| 09-26 05:14 | 80m | +5 / - | SN100PKP | - / - | 2 | Partial capture |
| 09-26 05:12 | 80m | +11 / -7 | DO5PY | -14 / -8 | 7 | ✓ Full exchange observed |
| 09-26 05:10 | 80m | +5 / - | EA5PS | - / -8 | 3 | Partial capture |
| 09-26 05:09 | 80m | +8 / - | SO100PKP | - / - | 2 | Partial capture |
| 08-29 09:43 | 20m | - / -4 | F4AXK | -7 / - | 3 | ✓ Closing fragment |
| 08-29 07:21 | 20m | +4 / - | 5N0YEN | - / - | 2 | Partial capture |
| 08-29 07:13 | 20m | +6 / -15 | Z62NS | -1 / -14 | 17 | Partial capture |
| 08-29 07:10 | 20m | -2 / - | VK4XK | - / - | 2 | Partial capture |
| 08-29 07:04 | 20m | +6 / - | VK2WAJ | - / - | 2 | Partial capture |
| 08-29 06:59 | 20m | +2 / - | EA3CY | - / -25 | 3 | ✓ Closing fragment |
| 08-29 06:57 | 20m | +10 / - | JY5IB | - / +6 | 2 | ✓ Closing fragment |
| 08-29 06:57 | 20m | +4 / - | F4LNM | +5 / +2 | 3 | Partial capture |
| 08-29 06:54 | 20m | +10 / - | DK8HC/P | - / +1 | 2 | ✓ Closing fragment |
| 08-29 06:50 | 20m | +8 / - | UW8SM | - / +6 | 2 | Partial capture |
| 08-29 06:49 | 20m | +10 / - | VK2GCA | - / -25 | 4 | ✓ Closing fragment |
| 08-29 06:48 | 20m | +10 / - | SV8NAJ | - / -13 | 2 | ✓ Closing fragment |
| 08-29 06:47 | 20m | +2 / - | SP8BJU | - / -7 | 2 | ✓ Closing fragment |
| 08-21 06:57 | 20m | +4 / - | ZL2NU | - / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 233515 -7 2795 9A4BA UR9QQ KN77 233515 -6 319 9A4BA RA6OY KN88 013030 -17 1645 9A4BA C5R RR73 013100 -19 1644 9A4BA RR73; RA9YDL <...> -14
UTC dB Audio Message 004530 -9 1003 9A4BA F1IQH JN27 004530 +0 860 9A4BA EA1IOK IN62 004545 +9 1003 F1IQH 9A4BA -20 004600 -10 1003 9A4BA F1IQH R-11 004600 -3 860 9A4BA EA1IOK IN62 004615 +8 1003 F1IQH 9A4BA RR73 004630 -8 1003 9A4BA F1IQH 73 004630 -4 860 9A4BA EA1IOK IN62 004645 +12 1003 EA1IOK 9A4BA -01 004700 -6 860 9A4BA EA1IOK IN62 004715 +8 1003 EA1IOK 9A4BA -01 (x4) 004915 +12 1003 CQ 9A4BA JN95
UTC dB Audio Message 071630 +3 729 9A4BA Z62NS -15 071645 +6 1247 Z62NS 9A4BA R-14 071700 -3 729 9A4BA Z62NS -15 071715 +6 1248 Z62NS 9A4BA R-17 071730 +1 729 9A4BA Z62NS -15 071745 +8 1247 Z62NS 9A4BA R-19 071800 -8 729 9A4BA Z62NS -15 071815 +6 1248 Z62NS 9A4BA R-15 071830 -7 730 9A4BA Z62NS -15 071845 +4 1248 Z62NS 9A4BA R-15 072145 +2 1229 5N0YEN 9A4BA JN95 (x2) 094300 -10 2557 9A4BA F4AXK IN96 (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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