RM5F — 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 RM5F, decoded by SO8OO in southeastern Poland. 11,530 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 128 UTC dates in the available aggregate history. Observed between 2026-06-06 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 11,530 FT8 messages attributed to RM5F as the transmitting token by decoded message structure across 128 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 40 m (33%) and 160 m (24%). Most decodes (67%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-10-22 05:16 UTC
Observed FT8 message patterns
- Attributed sample
- 11,530 messages
- Active dates
- 128 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -13 to +5.5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 561, moderate (-15 to -9 dB) 2,630, strong (≥ -8 dB) 8,339.
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 RM5F 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 RM5F
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
- KO85 · 7,194 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,193 km (approx.)
- Last such locator decoded
- 2026-10-22 05:15 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 | RM5F S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 05:13 | 40m | -4 / - | RA9XAF | - / -12 | 4 | ✓ Closing fragment |
| 10-22 05:12 | 40m | -10 / - | UB4HPQ | - / -11 | 2 | ✓ Closing fragment |
| 10-22 05:07 | 40m | 0 / - | GB50PUNK | - / -5 | 2 | Partial capture |
| 10-22 05:05 | 40m | - / -5 | R7CA/6 | -18 / - | 2 | Partial capture |
| 10-22 05:03 | 40m | -6 / - | GB50PUNK | - / - | 2 | Partial capture |
| 10-22 03:18 | 160m | +1 / -9 | RA3LBK | -12 / -6 | 5 | ✓ Full exchange observed |
| 10-22 02:16 | 160m | +6 / - | RY6O | - / - | 6 | Partial capture |
| 10-21 20:34 | 160m | -12 / - | R3SAH | -9 / -6 | 4 | ✓ Closing observed |
| 10-21 20:30 | 160m | +1 / - | R3SAH | - / - | 2 | Partial capture |
| 10-21 19:53 | 160m | -6 / - | UA3QIN | - / - | 15 | Partial capture |
| 10-21 19:40 | 160m | -9 / - | R4FES | - / -13 | 4 | ✓ Closing fragment |
| 10-21 19:31 | 160m | +1 / -5 | R6OE | -13 / -6 | 5 | ✓ Full exchange observed |
| 10-21 19:27 | 160m | -7 / - | R7KEO | - / -12 | 5 | ✓ Closing fragment |
| 10-21 19:26 | 160m | -7 / -10 | RX6DX | -10 / -8 | 5 | ✓ Full exchange observed |
| 10-21 19:17 | 160m | -4 / - | VK3NX | - / -18 | 7 | ✓ Closing fragment |
| 10-21 19:15 | 160m | +4 / - | R1QF/P | - / -10 | 3 | ✓ Closing fragment |
| 10-21 19:05 | 160m | -2 / - | R1QF/P | - / - | 11 | Partial capture |
| 10-21 18:33 | 160m | -4 / - | R8AHM | - / - | 2 | Partial capture |
| 10-21 18:18 | 160m | -2 / - | RN3OX | - / - | 2 | Partial capture |
| 10-21 17:58 | 160m | -11 / - | RN8C | - / -8 | 5 | ✓ Closing fragment |
| 10-21 17:50 | 160m | -4 / - | R5WW | - / - | 2 | Partial capture |
| 10-21 17:41 | 160m | -6 / +4 | RK6MC | -8 / 0 | 4 | ✓ Full exchange observed |
| 10-21 17:36 | 160m | -1 / - | R6ZAJ | - / -15 | 3 | ✓ Closing fragment |
| 10-21 17:30 | 160m | -6 / - | R6ZAJ | - / -17 | 2 | Partial capture |
| 10-21 17:14 | 160m | -7 / - | R3DFU | - / -18 | 3 | ✓ Closing fragment |
| 10-21 17:06 | 160m | -8 / -2 | RQ3M | -10 / -5 | 5 | ✓ Full exchange observed |
| 10-21 16:58 | 160m | -14 / - | R0WC | - / - | 5 | Partial capture |
| 10-21 03:45 | 80m | 0 / -5 | RX6CC | +12 / -1 | 5 | ✓ Full exchange observed |
| 10-21 03:23 | 80m | +8 / - | R7LX | -5 / -12 | 4 | ✓ Closing observed |
| 10-20 23:27 | 160m | 0 / - | RA9AGL | - / -6 | 3 | ✓ Closing fragment |
| 10-20 16:14 | 40m | +1 / - | UA3DNK | - / - | 5 | Partial capture |
| 10-20 16:11 | 40m | 0 / - | R4HNE | - / -12 | 5 | ✓ Closing fragment |
| 10-20 03:51 | 40m | -12 / +5 | R9LY/P | -17 / -3 | 3 | ✓ Full exchange observed |
| 10-19 21:36 | 160m | -14 / - | RU4B | - / -15 | 2 | ✓ Closing fragment |
| 10-18 21:16 | 160m | -14 / - | R5KH | - / -7 | 2 | ✓ Closing fragment |
| 10-18 21:14 | 160m | -12 / - | RW0CF | - / -11 | 3 | ✓ Closing fragment |
| 10-18 21:04 | 160m | -20 / - | R2AX | - / -14 | 2 | ✓ Closing fragment |
| 10-18 20:58 | 160m | -16 / - | BA7IO | - / - | 2 | Partial capture |
| 10-18 19:55 | 160m | -8 / - | RW0CF | - / - | 3 | Partial capture |
| 10-18 19:34 | 160m | -8 / - | R0SDC | - / +1 | 9 | Partial capture |
| 10-18 19:11 | 80m | +6 / - | R1TBG | - / - | 5 | Partial capture |
| 10-18 19:06 | 80m | +6 / -4 | R2DAR | +2 / -15 | 6 | ✓ Full exchange observed |
| 10-18 19:03 | 80m | +7 / 0 | R8CA | -2 / -13 | 6 | ✓ Full exchange observed |
| 10-18 18:36 | 40m | -2 / - | UA9LLB | - / - | 2 | Partial capture |
| 10-18 17:21 | 160m | -10 / - | R9YCV | - / - | 2 | Partial capture |
| 10-18 17:06 | 80m | -3 / - | UA3YFS | - / -13 | 3 | ✓ Closing fragment |
| 10-18 17:02 | 80m | +2 / - | UB3DQL | - / - | 5 | Partial capture |
| 10-18 09:35 | 40m | -11 / - | R3DQB | - / - | 2 | Partial capture |
| 10-18 08:14 | 40m | -12 / - | R3DQB | - / - | 9 | Partial capture |
| 10-18 07:29 | 40m | -10 / +3 | R1WBF | -14 / +2 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 040130 +8 389 RM5F RR73; UT3UY <...> -04 043830 +3 789 RK6OZ RM5F KO85 050300 -2 789 GB50PUNK RM5F KO85 (x2) 050545 -17 2184 RM5F R7CA/6 -05 050700 -1 789 GB50PUNK RM5F KO85 050715 -18 2184 RM5F R7CA/6 -08 050730 +1 789 GB50PUNK RM5F R-05 050945 -13 789 RA9XAF RM5F KO85 051215 -9 788 UB4HPQ RM5F -11 (x2) 051315 -7 789 RA9XAF RM5F KO85 (x4)
UTC dB Audio Message 203530 -9 1497 RM5F R3SAH RR73 203545 -14 784 R3SAH RM5F 73 223200 +9 784 RZ1OA RM5F KO85 021645 +7 783 RY6O RM5F KO85 (x6) 031545 +4 783 RA3LBK RM5F KO85 (x2) 031830 -12 2064 RM5F RA3LBK -09 031845 +1 783 RA3LBK RM5F R-06 031900 -12 2064 RM5F RA3LBK RR73 031915 +1 783 RA3LBK RM5F 73
UTC dB Audio Message 191130 +13 682 R1TBG RM5F KO85 (x6) 032330 +9 641 R7LX RM5F KO85 (x2) 032415 -5 2020 RM5F R7LX RR73 032430 +6 641 R7LX RM5F 73 034530 +1 641 RX6CC RM5F KO85 034545 +12 854 RM5F RX6CC -05 034600 +5 640 RX6CC RM5F R-01 034615 +12 854 RM5F RX6CC RR73 034630 -5 641 RX6CC RM5F 73
UTC dB Audio Message 145300 +2 1025 R0BD RM5F R-11 (x4) 145645 +6 1025 R6DYN RM5F KO85 (x4) 145930 +3 1025 R9MDA RM5F KO85 (x3) 150100 -8 1025 R8AGV RM5F KO85 150145 +1 1512 RM5F R8AGV -05 150200 -7 1025 R8AGV RM5F R-07 (x2)
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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