F5RMK — 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 F5RMK, decoded by SO8OO in southeastern Poland. 39,189 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 78 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-22.
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 39,189 FT8 messages attributed to F5RMK as the transmitting token by decoded message structure across 78 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (53%), followed by 80 m (19%) and 40 m (13%). The busiest six-hour window was 22:00-04:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-22 08:13 UTC
Observed FT8 message patterns
- Attributed sample
- 39,189 messages
- Active dates
- 78 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -18 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7,020, moderate (-15 to -9 dB) 14,621, strong (≥ -8 dB) 17,548.
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 F5RMK 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 F5RMK
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
- IN98 · 34,409 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,657 km (approx.)
- Last such locator decoded
- 2026-10-22 08:13 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 | F5RMK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 07:16 | 60m | -22 / - | M0CKX | - / -3 | 2 | ✓ Closing fragment |
| 10-22 05:46 | 60m | -10 / +5 | F4HSB | -20 / -9 | 3 | ✓ Full exchange observed |
| 10-22 05:40 | 60m | -16 / -14 | DL8RBL | 0 / +1 | 4 | ✓ Full exchange observed |
| 10-22 05:03 | 60m | -20 / - | OK3WOD | - / -16 | 2 | ✓ Closing fragment |
| 10-22 05:01 | 60m | -14 / +9 | M0DSK | -23 / +10 | 3 | Partial capture |
| 10-22 04:57 | 60m | -10 / - | DL4NHP | - / -3 | 2 | ✓ Closing fragment |
| 10-22 04:54 | 60m | -14 / - | AI9K | - / -21 | 4 | ✓ Closing fragment |
| 10-22 04:40 | 60m | -5 / - | EW6DO | - / -18 | 3 | ✓ Closing fragment |
| 10-22 04:10 | 60m | -6 / - | HI3K | - / -5 | 2 | ✓ Closing fragment |
| 10-22 04:01 | 60m | -7 / - | KF0ULU | - / -11 | 13 | ✓ Closing fragment |
| 10-22 03:56 | 60m | -9 / - | KB8DX | - / -16 | 3 | ✓ Closing fragment |
| 10-22 03:49 | 60m | -14 / - | SP2WRH | - / -9 | 2 | ✓ Closing fragment |
| 10-22 03:43 | 60m | -5 / - | UW5ESX | - / -11 | 3 | ✓ Closing fragment |
| 10-22 03:39 | 60m | -8 / - | N2ISS | - / -15 | 2 | ✓ Closing fragment |
| 10-22 02:56 | 60m | -8 / - | N8LE | - / -22 | 2 | ✓ Closing fragment |
| 10-22 02:45 | 60m | -4 / - | 4X1FK | - / -11 | 2 | ✓ Closing fragment |
| 10-22 02:30 | 60m | -12 / - | VA3MBT | - / -10 | 2 | ✓ Closing fragment |
| 10-22 02:24 | 60m | -4 / -6 | G1LQT | -4 / -12 | 4 | ✓ Full exchange observed |
| 10-22 02:08 | 60m | -6 / - | N3FMC | - / -7 | 2 | ✓ Closing fragment |
| 10-22 01:54 | 60m | -8 / - | KB2BK | - / -4 | 3 | ✓ Closing fragment |
| 10-22 01:24 | 60m | -12 / - | W9IKE | - / -9 | 2 | ✓ Closing fragment |
| 10-22 00:59 | 60m | -14 / - | UT2UB | - / +5 | 2 | ✓ Closing fragment |
| 10-22 00:54 | 60m | -9 / - | W2BDM | - / -20 | 4 | Partial capture |
| 10-22 00:20 | 60m | -9 / - | WB3IGR | - / -10 | 4 | ✓ Closing fragment |
| 10-21 23:55 | 60m | -7 / - | DF9AO | - / -20 | 3 | ✓ Closing fragment |
| 10-21 23:32 | 60m | -11 / - | SQ2NUH | - / -1 | 2 | ✓ Closing fragment |
| 10-21 22:36 | 60m | -2 / -12 | UD6AWH | -12 / -6 | 2 | Partial capture |
| 10-21 22:33 | 60m | -4 / -1 | DB2OO | -3 / +5 | 4 | ✓ Full exchange observed |
| 10-21 22:00 | 160m | - / - | DL9NN | -19 / - | 3 | Partial capture |
| 10-21 21:51 | 60m | -4 / - | IU1TLE | - / -10 | 2 | ✓ Closing fragment |
| 10-21 20:42 | 60m | -4 / - | IW1FRD | - / -4 | 2 | ✓ Closing fragment |
| 10-21 20:28 | 60m | -12 / +4 | F4EPP | -15 / 0 | 3 | ✓ Full exchange observed |
| 10-21 20:25 | 60m | -8 / - | SP2TQQ | - / -11 | 2 | ✓ Closing fragment |
| 10-21 20:17 | 60m | -8 / - | SP2WIL | - / -19 | 3 | ✓ Closing fragment |
| 10-21 19:36 | 60m | -6 / -11 | DL4BBY | -7 / 0 | 5 | ✓ Full exchange observed |
| 10-21 19:34 | 60m | -8 / - | SM5RYW | - / -20 | 2 | ✓ Closing fragment |
| 10-21 19:31 | 60m | -10 / - | EA4GM | - / +8 | 2 | ✓ Closing fragment |
| 10-21 19:30 | 60m | -12 / 0 | SN0EG | -4 / - | 5 | ✓ Full exchange observed |
| 10-21 19:26 | 60m | -5 / - | E74MG | -12 / -5 | 3 | ✓ Closing observed |
| 10-21 19:21 | 60m | -9 / - | IU1HGN | -16 / -11 | 3 | ✓ Closing observed |
| 10-21 19:13 | 60m | -6 / - | ON4MHZ | - / -6 | 2 | ✓ Closing fragment |
| 10-21 19:05 | 60m | -12 / - | OH3CD | -12 / -4 | 4 | ✓ Closing observed |
| 10-21 18:37 | 60m | -10 / - | SM7MDI | - / -17 | 3 | ✓ Closing fragment |
| 10-21 18:24 | 60m | -8 / - | SP2AJO | - / +4 | 2 | ✓ Closing fragment |
| 10-21 18:08 | 60m | -4 / -13 | HA7CH | -12 / -4 | 4 | ✓ Full exchange observed |
| 10-21 18:06 | 60m | -11 / - | PE1LJS | - / -6 | 2 | ✓ Closing fragment |
| 10-21 18:03 | 60m | -7 / +2 | ON6QRP | -7 / - | 5 | ✓ Full exchange observed |
| 10-21 17:58 | 60m | -6 / -4 | F5HOD | -15 / -10 | 5 | ✓ Full exchange observed |
| 10-21 17:37 | 60m | -7 / +5 | IZ2WYA | -5 / -2 | 5 | ✓ Full exchange observed |
| 10-21 17:31 | 60m | -6 / - | DL2FAG | +5 / - | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 074315 -22 1836 CQ F5RMK IN98 (x11) 075715 -19 1835 G3YQA F5RMK 73 080115 -23 1835 CQ F5RMK IN98 a1 (x3)
UTC dB Audio Message 060045 -17 1203 G4GVB F5RMK RR73 060245 -21 1202 CQ F5RMK IN98 (x11) 220000 -16 1601 F5RMK DL9NN JO42 (x3)
UTC dB Audio Message 065130 -24 1607 CQ F5RMK IN98 (x4) 070215 -22 1607 F5RMK DK2OJ JO41 (x2) 070830 -24 1606 CQ F5RMK IN98 071500 -24 1607 MM0JTV F5RMK RR73 071530 -24 1607 CQ F5RMK IN98 (x5) 075245 +8 1713 F5RMK OK1YQ JN79 080345 -22 1292 F5RMK HB9ALO 73
UTC dB Audio Message 162930 -11 1238 CQ F5RMK IN98 162945 -10 1238 F5RMK DK5FF JO54 163000 -12 1238 CQ F5RMK IN98 (x2) 163045 -6 1238 F5RMK DK5FF JO54 163100 -10 1238 CQ F5RMK IN98 163115 -7 1238 F5RMK DK5FF JO54 163130 -12 1238 CQ F5RMK IN98 (x2) 163215 -9 1238 F5RMK DK5FF JO54 163230 -11 1237 CQ F5RMK IN98 (x2) 163315 -7 1238 F5RMK DK5FF JO54 144445 -15 1139 F5RMK E75NET JN93 075045 -24 1643 F5RMK DG5PW JO30
UTC dB Audio Message 162815 -16 1454 CQ F5RMK IN98 (x9) 123530 -24 1693 F5RMK R6DP LN04 094330 -15 2419 F5RMK RM8L MO27 (x2) 144500 -3 2828 F5RMK PT7YB HI06 (x3)
UTC dB Audio Message 180115 -21 1186 AA3B F5RMK IN98 (x3) 180445 -12 1185 CQ F5RMK IN98 184400 -16 1184 F5RMK IU4SQE JN64 (x2) 190430 -21 1877 F5RMK BI4MJX OM97 (x2) 190715 -18 1186 CQ F5RMK IN98 a1 (x2) 190815 -20 1186 US5LD F5RMK -17 191130 -24 2040 F5RMK BG7BVI OL66 192330 -21 1649 F5RMK DK5DS JN39 (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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