KA1BMF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KA1BMF, decoded by SO8OO in southeastern Poland. 230 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-19.
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 230 FT8 messages attributed to KA1BMF as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (76%), followed by 80 m (16%) and 20 m (8%). Most decodes (95%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.
Overview
Bands
Last attributed message: 2026-09-19 03:41 UTC
Observed FT8 message patterns
- Attributed sample
- 230 messages
- Active dates
- 30 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -22 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 105, moderate (-15 to -9 dB) 101, 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 KA1BMF 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 KA1BMF
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
- FN31
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 6,913 km (approx.)
- Last such locator decoded
- 2026-09-02 01:38 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 | KA1BMF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 03:31 | 40m | -9 / - | TF3VS | - / -19 | 17 | Partial capture |
| 09-19 02:37 | 40m | -13 / - | W6K | - / -18 | 4 | Partial capture |
| 09-16 02:55 | 40m | - / - | R6TA | -1 / - | 8 | Partial capture |
| 09-16 02:49 | 40m | -14 / - | 9K2WA | - / -14 | 2 | Partial capture |
| 09-16 02:47 | 40m | - / - | R6FY | +8 / - | 2 | Partial capture |
| 09-16 02:04 | 40m | - / - | SV1MOZ | -13 / - | 4 | Partial capture |
| 09-15 02:01 | 80m | -24 / -13 | PA4PA | +6 / -16 | 5 | ✓ Full exchange observed |
| 09-15 01:06 | 40m | -11 / - | W9OAW | - / -20 | 5 | ✓ Closing fragment |
| 09-15 00:30 | 40m | -14 / - | VA3MWT | - / -15 | 3 | ✓ Closing fragment |
| 09-14 01:53 | 40m | -9 / - | WY7WL | - / -15 | 4 | ✓ Closing fragment |
| 09-14 01:47 | 40m | -11 / - | R6HV/P | - / -18 | 3 | Partial capture |
| 09-14 01:42 | 40m | -9 / - | VA6RCN | - / -14 | 4 | Partial capture |
| 09-14 01:16 | 40m | - / -14 | PA4PA | -6 / - | 2 | ✓ Closing fragment |
| 09-12 03:24 | 40m | - / - | UR5AB | -2 / - | 4 | Partial capture |
| 09-12 03:19 | 40m | - / -15 | 5B4AMM | +7 / - | 2 | Partial capture |
| 09-12 02:11 | 40m | -11 / -11 | J38LD | -14 / -15 | 9 | ✓ Full exchange observed |
| 09-12 02:06 | 40m | -12 / - | KF8DZL | - / -15 | 2 | ✓ Closing fragment |
| 09-11 05:50 | 40m | - / - | DG1KDD | -2 / - | 3 | Partial capture |
| 09-11 02:08 | 40m | -12 / - | N0MHL | - / -13 | 2 | Partial capture |
| 09-11 00:11 | 40m | -11 / - | TF3VS | - / -20 | 3 | Partial capture |
| 09-11 00:03 | 40m | - / - | UX1VT | -3 / - | 4 | Partial capture |
| 09-10 23:47 | 40m | - / - | UX1VT | -8 / - | 3 | Partial capture |
| 09-10 22:43 | 40m | - / -5 | EA8DSX | -20 / - | 3 | ✓ Closing fragment |
| 09-10 02:19 | 40m | -14 / - | WF0B | - / -18 | 6 | Partial capture |
| 09-10 02:04 | 40m | -12 / - | T46W | - / -22 | 5 | Partial capture |
| 09-08 02:10 | 40m | - / -16 | A71AH | -11 / - | 2 | Partial capture |
| 09-08 01:53 | 40m | -16 / -14 | A61FJ | -16 / -16 | 3 | ✓ Full exchange observed |
| 09-06 06:34 | 40m | - / - | PD1AC | -10 / - | 3 | Partial capture |
| 09-06 03:11 | 40m | -18 / - | KC9WCJ | - / -7 | 2 | Partial capture |
| 09-06 03:06 | 40m | -21 / - | KC9WCJ | - / -7 | 4 | Partial capture |
| 09-06 02:55 | 40m | -20 / - | T77NC | - / -22 | 4 | Partial capture |
| 09-06 02:32 | 40m | -20 / - | CT7AUT | -12 / -12 | 4 | ✓ Closing observed |
| 09-06 00:18 | 40m | -18 / -22 | EX7CQ | +6 / -22 | 12 | ✓ Full exchange observed |
| 09-06 00:05 | 40m | -17 / - | EX7CQ | - / -23 | 10 | Partial capture |
| 09-05 05:40 | 40m | - / - | PD0WL | -12 / - | 9 | Partial capture |
| 09-05 02:37 | 40m | -15 / - | W8FSM | - / -20 | 3 | Partial capture |
| 09-03 23:44 | 40m | - / - | CT7AUT | -12 / - | 2 | Partial capture |
| 09-03 23:06 | 40m | -16 / - | K2JB | - / -20 | 2 | Partial capture |
| 09-03 22:25 | 40m | - / -13 | F1PBZ | -2 / - | 2 | Partial capture |
| 09-03 04:24 | 80m | - / - | HB0CC | 0 / - | 2 | Partial capture |
| 09-03 04:22 | 80m | - / - | EI1DG | -16 / - | 2 | Partial capture |
| 09-03 04:17 | 80m | - / - | DO5WG | -8 / - | 5 | Partial capture |
| 09-03 04:15 | 80m | - / - | HB9ALO | -4 / - | 3 | Partial capture |
| 09-03 03:37 | 80m | - / - | SP5DFG | +17 / - | 7 | Partial capture |
| 09-03 03:36 | 80m | - / +5 | K1ZM | +6 / - | 2 | ✓ Closing fragment |
| 09-03 02:58 | 80m | -20 / -17 | SP6JIU | +27 / -21 | 3 | Partial capture |
| 09-02 01:40 | 40m | -13 / -19 | UW5IM | -7 / -22 | 6 | Partial capture |
| 09-02 01:39 | 40m | -14 / - | AA7SG | - / -13 | 2 | ✓ Closing fragment |
| 09-02 01:39 | 40m | - / - | TA2EE | -7 / - | 3 | Partial capture |
| 09-02 01:36 | 40m | -16 / -15 | 4X5MZ | +10 / -10 | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 033215 -6 773 TF3VS KA1BMF -19 (x15)
UTC dB Audio Message 041745 -6 1160 KA1BMF DO5WG JO40 (x3) 041915 -13 955 KA1BMF DO1BWS R+05 042015 -8 1160 KA1BMF DO5WG JO40 042245 -17 2251 KA1BMF EI1DG IO63 (x2) 042445 -1 1770 KA1BMF HB0CC JN47 (x2) 042515 -16 1501 KA1BMF DO1NAE JN59 020115 +7 2494 KA1BMF PA4PA R-13 020130 -24 740 PA4PA KA1BMF -16 020145 +6 2494 KA1BMF PA4PA R-11 020200 -24 740 PA4PA KA1BMF RR73 020215 +5 2494 KA1BMF PA4PA 73
UTC dB Audio Message 195315 -3 1488 KA1BMF CT1END/P R-06 (x5) 221645 -19 1424 EA8AT KA1BMF -21 (x2) 220830 -24 1566 <...> KA1BMF -18 (x2) 012415 -19 1617 TJ1GD KA1BMF RR73 013500 -21 2165 KA1BMF 5Z4VJ R-06 032200 -1 2799 KA1BMF RX9ABI R-13 033830 -9 1492 KA1BMF RZ9A R-19 (x2) 081315 -24 1524 KA1BMF CT1END/P R+01
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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