F4MAK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4MAK, decoded by SO8OO in southeastern Poland. 287 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-08-09.
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 287 FT8 messages attributed to F4MAK as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (92%), followed by 60 m (3%) and 10 m (3%). Most decodes (54%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-08-09 09:21 UTC
Observed FT8 message patterns
- Attributed sample
- 287 messages
- Active dates
- 21 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -20 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 75, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 147.
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 F4MAK 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 F4MAK
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
- JN18 · 154 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,370 km (approx.)
- Last such locator decoded
- 2026-08-09 09:21 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 | F4MAK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-09 09:21 | 20m | -19 / - | TA3NHM | - / - | 2 | Partial capture |
| 08-08 16:08 | 20m | +14 / - | VU2ADV | - / - | 2 | Partial capture |
| 08-07 15:16 | 20m | -15 / - | F1ORY | - / - | 2 | Partial capture |
| 08-07 12:26 | 20m | -18 / - | SQ9M | - / -12 | 3 | ✓ Closing fragment |
| 08-07 09:21 | 20m | -4 / - | OH0ERF | - / - | 2 | Partial capture |
| 08-06 21:22 | 60m | -13 / +4 | G4ZFJ | -1 / +1 | 6 | ✓ Full exchange observed |
| 08-06 21:21 | 60m | -16 / -10 | DL7GP | +5 / -5 | 6 | ✓ Full exchange observed |
| 08-06 21:20 | 60m | -17 / - | F1LZV | -18 / 0 | 3 | ✓ Closing observed |
| 08-06 21:18 | 60m | -18 / +6 | PI4APD | -12 / - | 3 | ✓ Closing observed |
| 08-06 21:17 | 60m | -13 / -11 | GB8VJ | -10 / - | 3 | ✓ Closing observed |
| 08-06 21:15 | 60m | -16 / - | 8S7DL | 0 / -4 | 4 | ✓ Closing observed |
| 08-06 21:09 | 20m | +1 / - | VA7RY | - / - | 3 | ✓ Closing fragment |
| 08-06 21:08 | 20m | -5 / - | JH1BZJ | - / - | 2 | Partial capture |
| 08-06 21:06 | 20m | -10 / - | W4TM | - / -18 | 2 | Partial capture |
| 08-06 21:00 | 20m | -10 / - | JH8SIT | - / -16 | 3 | ✓ Closing fragment |
| 08-06 20:53 | 20m | -10 / - | JA1UQA | - / -16 | 2 | ✓ Closing fragment |
| 08-06 20:43 | 20m | -7 / - | JE1LFX | - / -16 | 3 | Partial capture |
| 08-06 12:58 | 20m | -22 / - | R6DV | -6 / -14 | 7 | ✓ Closing observed |
| 08-06 12:55 | 20m | -22 / - | DL8LRZ | - / -12 | 4 | ✓ Closing fragment |
| 08-06 12:45 | 20m | -19 / -16 | DK4ET | -12 / - | 2 | ✓ Closing observed |
| 08-02 12:19 | 20m | +1 / - | VE2FVV | - / - | 4 | Partial capture |
| 08-02 12:17 | 20m | -7 / - | YL2JZ | - / -6 | 3 | ✓ Closing fragment |
| 08-02 12:16 | 20m | -8 / - | LA3ZA | - / - | 2 | Partial capture |
| 08-02 09:39 | 20m | +2 / - | SP5PSZ | - / -9 | 5 | ✓ Closing fragment |
| 08-02 09:36 | 20m | -1 / - | KE2UK | - / -20 | 4 | ✓ Closing fragment |
| 08-02 09:28 | 20m | -10 / - | SP6FME | - / 0 | 2 | ✓ Closing fragment |
| 08-02 09:26 | 20m | -11 / - | WA1BXY | - / -16 | 4 | ✓ Closing fragment |
| 08-02 09:21 | 20m | -5 / - | SA0LTA | - / - | 2 | Partial capture |
| 08-02 09:12 | 20m | -1 / - | SA0LTA | - / - | 3 | Partial capture |
| 08-02 09:07 | 20m | 0 / - | HI8UD | - / -6 | 2 | ✓ Closing fragment |
| 08-02 08:31 | 20m | -5 / - | HK3W | - / -17 | 4 | Partial capture |
| 08-02 08:17 | 20m | -7 / - | F4MXE | - / -5 | 2 | ✓ Closing fragment |
| 08-02 08:15 | 20m | -4 / -17 | EB3JT | -13 / -18 | 5 | ✓ Full exchange observed |
| 08-02 08:12 | 20m | -18 / - | ON7SX | - / -10 | 2 | Partial capture |
| 08-01 21:19 | 20m | +8 / - | WI1U | - / -12 | 2 | ✓ Closing fragment |
| 08-01 21:17 | 20m | -4 / - | YT2TOR | - / -10 | 2 | ✓ Closing fragment |
| 08-01 21:00 | 20m | +6 / - | G8RZ | - / -16 | 4 | ✓ Closing fragment |
| 08-01 20:58 | 20m | +2 / - | KC3WOX | - / -17 | 2 | ✓ Closing fragment |
| 08-01 20:56 | 20m | +7 / - | DS2NSC | - / -14 | 4 | ✓ Closing fragment |
| 08-01 20:49 | 20m | +5 / - | JA5AUC | - / - | 10 | Partial capture |
| 08-01 20:46 | 20m | -2 / - | JI1CZK | - / - | 2 | Partial capture |
| 08-01 19:58 | 20m | 0 / - | K1BIF | - / - | 2 | Partial capture |
| 08-01 17:03 | 20m | -18 / - | LB8X | - / -3 | 2 | ✓ Closing fragment |
| 08-01 12:32 | 20m | +3 / - | DG4BBK | - / -11 | 9 | ✓ Closing fragment |
| 08-01 12:23 | 20m | -6 / - | NS9I | - / -18 | 4 | ✓ Closing fragment |
| 08-01 12:05 | 20m | -9 / - | KZ9DX | - / - | 6 | Partial capture |
| 07-29 16:54 | 20m | -9 / +6 | YO3AUM | -13 / -16 | 4 | Partial capture |
| 07-29 09:49 | 20m | +4 / - | G6UJJ | - / - | 2 | ✓ Closing fragment |
| 07-29 09:43 | 20m | -2 / - | F5MYK | - / -10 | 2 | ✓ Closing fragment |
| 07-29 09:41 | 20m | -6 / - | HB10GBT | - / +3 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 092245 -7 2453 OH0ERF F4MAK JN18 095100 -19 1320 VE2OPC F4MAK R-20 122645 -16 1234 SQ9M F4MAK JN18 (x3) 125100 -19 2143 TK4QP F4MAK JN18 151600 -15 1480 F1ORY F4MAK JN18 (x2) 133545 +4 987 CT7BIN F4MAK JN18 145400 -10 1360 SQ9SZ F4MAK JN18 160800 +13 2575 VU2ADV F4MAK JN18 (x2) 091645 -13 680 YO3FVR F4MAK R-15 092115 -20 2091 TA3NHM F4MAK JN18 (x2)
UTC dB Audio Message 212030 -16 1129 F1LZV F4MAK R+00 212045 -18 1128 F4MAK F1LZV RR73 212100 -18 1128 F1LZV F4MAK 73 212115 +4 2327 F4MAK DL7GP JO52 (x2) 212200 -15 2328 DL7GP F4MAK -05 212215 +5 2327 F4MAK DL7GP R-10 212230 -16 2328 DL7GP F4MAK RR73 212245 +2 782 F4MAK G4ZFJ JO01 212245 +6 2327 F4MAK DL7GP 73 212315 -2 782 F4MAK G4ZFJ JO01 212330 -13 782 G4ZFJ F4MAK +01 212345 -2 782 F4MAK G4ZFJ R+04 212400 -13 782 G4ZFJ F4MAK RR73 212415 -1 782 F4MAK G4ZFJ 73
UTC dB Audio Message 050545 -17 2269 F4MAK DL8TV +00 (x2) 200230 -17 1412 F5PSP F4MAK JN18 200315 -18 1412 F4MAK F5PSP -01 200330 -18 1412 F5PSP F4MAK R-03 200345 -14 1412 F4MAK F5PSP RR73 200400 -18 1412 F5PSP F4MAK 73
UTC dB Audio Message 140915 -17 1378 <...> F4MAK JN18 (x2) 141300 -16 1134 MM7FTH F4MAK JN18 (x4) 141930 -19 2039 HA7TM F4MAK RR73 142245 -10 853 LY2BBF F4MAK JN18
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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