RM1F — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RM1F, decoded by SO8OO in southeastern Poland. 546 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-10.
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 546 FT8 messages attributed to RM1F as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 20 m (31%). Most decodes (66%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-10 20:51 UTC
Observed FT8 message patterns
- Attributed sample
- 546 messages
- Active dates
- 37 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -17 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 74, moderate (-15 to -9 dB) 158, strong (≥ -8 dB) 314.
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 RM1F 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 RM1F
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
- KO59 · 332 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,214 km (approx.)
- Last such locator decoded
- 2026-09-10 20:51 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 | RM1F S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-10 20:48 | 40m | -5 / -10 | JF4VZT | -7 / - | 7 | ✓ Closing observed |
| 09-10 20:47 | 40m | -6 / - | RA3TVW | - / -10 | 2 | ✓ Closing fragment |
| 09-10 20:44 | 40m | -7 / - | HL2WA | - / -14 | 4 | Partial capture |
| 09-10 17:23 | 40m | -13 / - | JH1OBS | -4 / -16 | 5 | ✓ Closing observed |
| 09-10 17:13 | 40m | -6 / - | JH1OBS | - / - | 4 | Partial capture |
| 09-04 18:18 | 40m | - / +1 | PA3GHJ | -6 / - | 2 | Partial capture |
| 09-04 18:17 | 40m | - / +9 | G4MHJ | -10 / - | 3 | ✓ Closing fragment |
| 09-04 18:13 | 40m | -3 / - | UB4HVA | -9 / - | 2 | ✓ Closing observed |
| 09-04 18:12 | 40m | - / - | UB6OCP | -4 / - | 4 | Partial capture |
| 09-04 18:12 | 40m | - / - | R3BCK | +4 / - | 12 | Partial capture |
| 09-04 18:11 | 40m | -3 / - | UG0B | -12 / -13 | 3 | ✓ Closing observed |
| 09-01 17:30 | 40m | - / -3 | R6ZB | 0 / - | 2 | ✓ Closing fragment |
| 09-01 17:22 | 40m | -14 / - | UA3POG | - / -13 | 2 | ✓ Closing fragment |
| 09-01 17:21 | 40m | -13 / - | RI1FJL | - / -16 | 9 | Partial capture |
| 09-01 16:58 | 40m | -15 / - | RI1FJL | - / - | 3 | Partial capture |
| 08-30 18:49 | 40m | -7 / - | BD4JN | - / - | 2 | Partial capture |
| 08-24 01:41 | 40m | - / -13 | AG2K | +4 / - | 2 | ✓ Closing fragment |
| 08-24 01:32 | 40m | - / -2 | R9DZ | +3 / - | 3 | ✓ Closing fragment |
| 08-24 01:30 | 40m | -13 / - | EB1LA | -3 / -10 | 2 | Partial capture |
| 08-22 03:24 | 20m | - / - | IT9IJF | -22 / - | 3 | Partial capture |
| 08-22 03:19 | 20m | -18 / - | AD9DU | - / -18 | 3 | ✓ Closing fragment |
| 08-22 03:17 | 20m | -16 / -3 | NA3M | -20 / - | 4 | Partial capture |
| 08-22 03:14 | 20m | -16 / - | KI5JWV | - / - | 2 | Partial capture |
| 08-22 03:12 | 20m | -13 / - | AD9DU | - / - | 3 | Partial capture |
| 08-22 03:09 | 20m | -13 / - | K3MEC | -11 / -12 | 5 | ✓ Closing observed |
| 08-22 03:00 | 20m | -14 / - | K0KPH | - / - | 3 | Partial capture |
| 08-22 02:36 | 20m | -18 / -4 | HI8DX | 0 / -7 | 5 | ✓ Full exchange observed |
| 08-22 02:35 | 20m | -20 / - | WC9I | - / -19 | 2 | ✓ Closing fragment |
| 08-22 02:26 | 40m | -8 / 0 | WK1O | +12 / - | 3 | ✓ Closing observed |
| 08-22 02:25 | 40m | -6 / - | KC4DPT | - / - | 4 | Partial capture |
| 08-22 02:22 | 40m | -12 / - | HC1DAZ | - / - | 3 | Partial capture |
| 08-22 02:20 | 40m | - / -13 | NB2P | -4 / - | 2 | ✓ Closing fragment |
| 08-22 02:07 | 40m | - / -4 | TA3NK | 0 / - | 2 | ✓ Closing fragment |
| 08-22 02:06 | 40m | - / +2 | OS4K | -14 / - | 2 | Partial capture |
| 08-21 05:45 | 20m | -10 / - | RV9CD | - / -14 | 2 | Partial capture |
| 08-21 05:41 | 20m | -4 / -11 | NP3RK | -9 / - | 5 | Partial capture |
| 08-21 05:23 | 20m | -2 / - | YO5PHL | - / -15 | 2 | ✓ Closing fragment |
| 08-21 05:18 | 20m | -5 / - | TA2EE | - / -8 | 2 | ✓ Closing fragment |
| 08-21 05:17 | 20m | -3 / - | K9VIT | - / -15 | 2 | ✓ Closing fragment |
| 08-21 05:07 | 20m | -11 / +5 | ZL2BX | -14 / -16 | 3 | Partial capture |
| 08-20 01:05 | 40m | - / -14 | HI3QMT | -8 / - | 2 | Partial capture |
| 08-19 23:40 | 40m | - / -10 | F1IQH | +2 / - | 3 | ✓ Closing fragment |
| 08-19 23:39 | 40m | - / +1 | DG5KAC | +14 / - | 2 | ✓ Closing fragment |
| 08-19 21:16 | 20m | - / -17 | EA1DSK | 0 / - | 3 | ✓ Closing fragment |
| 08-19 21:03 | 20m | - / +4 | SV2AEL | -17 / - | 3 | ✓ Closing fragment |
| 08-19 20:54 | 20m | - / -7 | LU3CQ | -15 / - | 2 | ✓ Closing fragment |
| 08-17 18:19 | 20m | - / - | HB9IIO | -1 / - | 2 | Partial capture |
| 08-17 17:58 | 20m | - / +2 | R6OQ | -10 / - | 2 | ✓ Closing fragment |
| 08-17 17:54 | 20m | - / +5 | JA1XZF | -16 / - | 2 | ✓ Closing fragment |
| 08-02 02:21 | 40m | -8 / - | VE1WT | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 172530 -14 736 JH1OBS RM1F 73 204145 -18 765 RM1F HS0ZKB -12 204445 -11 1483 HL2WA RM1F KO59 (x4) 204715 -4 1483 RA3TVW RM1F R-10 (x2) 204845 -7 1483 JF4VZT RM1F KO59 (x3) 205300 -8 899 RM1F JF4VZT -10 (x4)
UTC dB Audio Message 031200 -15 1235 AD9DU RM1F KO59 (x3) 031430 -17 1237 KI5JWV RM1F KO59 (x2) 031715 -20 1237 NA3M RM1F KO59 031730 -20 2111 RM1F NA3M -03 031815 -13 1237 NA3M RM1F KO59 031830 -21 2110 RM1F NA3M -01 031900 -19 1483 AD9DU RM1F R-18 (x3) 032415 -23 1554 RM1F IT9IJF JM77 (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.
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