RM1B — 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 RM1B, decoded by SO8OO in southeastern Poland. 988 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-23.
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 988 FT8 messages attributed to RM1B as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (97%), followed by 20 m (3%). Several six-hour UTC windows tied for the largest share (88%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.2 dB.
Overview
Bands
Last attributed message: 2026-10-23 17:20 UTC
Observed FT8 message patterns
- Attributed sample
- 988 messages
- Active dates
- 40 UTC dates
- Estimated median S/N
- -7.2 dB
- Estimated 10th-90th percentile
- -14.4 to +0.2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 80, moderate (-15 to -9 dB) 338, strong (≥ -8 dB) 570.
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 RM1B 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 RM1B
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 · 500 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,214 km (approx.)
- Last such locator decoded
- 2026-10-23 17:20 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 | RM1B S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 17:14 | 40m | -4 / -13 | Z33B | -15 / -14 | 5 | ✓ Full exchange observed |
| 10-23 17:12 | 40m | -8 / - | PD4WAC | - / - | 2 | Partial capture |
| 10-23 17:07 | 40m | +4 / -14 | PD5TF | -4 / -11 | 5 | Partial capture |
| 10-23 17:03 | 40m | -4 / -1 | SV8DCY | +1 / - | 3 | ✓ Closing observed |
| 10-23 16:52 | 40m | - / +2 | YT1VDA | -2 / - | 2 | ✓ Closing fragment |
| 10-23 16:49 | 40m | -6 / - | RW9MZ | - / -12 | 3 | ✓ Closing fragment |
| 10-23 16:46 | 40m | -16 / - | ZL2NU | - / - | 3 | Partial capture |
| 10-23 16:45 | 40m | -8 / - | EP2AES | - / -14 | 2 | ✓ Closing fragment |
| 10-22 16:46 | 40m | -2 / - | HB9HRB | - / - | 2 | Partial capture |
| 10-22 16:10 | 40m | +1 / - | M0FOX | - / -2 | 3 | ✓ Closing fragment |
| 10-22 16:08 | 40m | -8 / -2 | DK2AM | -9 / - | 4 | ✓ Closing observed |
| 10-22 03:44 | 40m | - / 0 | TO4A | +7 / - | 2 | Partial capture |
| 10-21 02:47 | 40m | - / -14 | CT7BRV | +2 / - | 2 | ✓ Closing fragment |
| 10-21 02:42 | 40m | - / -18 | TA3NK | -1 / - | 11 | ✓ Closing fragment |
| 10-16 17:57 | 40m | -9 / - | OZ1DKE | - / -7 | 4 | ✓ Closing fragment |
| 10-16 17:56 | 40m | - / -15 | MM0DXL | -14 / - | 2 | ✓ Closing fragment |
| 10-16 17:53 | 40m | -11 / -2 | UN0GY | -11 / 0 | 4 | ✓ Full exchange observed |
| 10-16 17:00 | 40m | -4 / - | RX9CN | - / +4 | 2 | Partial capture |
| 10-16 16:59 | 40m | - / - | EA7GNO | -14 / - | 3 | Partial capture |
| 10-16 16:52 | 40m | +1 / - | 9A5MP | - / -17 | 6 | ✓ Closing fragment |
| 10-16 16:49 | 40m | +4 / - | UB4HVA | - / -4 | 4 | ✓ Closing fragment |
| 10-16 16:45 | 40m | - / -12 | F5MOO | +4 / - | 4 | ✓ Closing fragment |
| 10-16 16:44 | 40m | - / - | EU2ABM | -4 / - | 2 | Partial capture |
| 10-16 16:38 | 40m | 0 / -12 | R2FDU | -3 / - | 2 | ✓ Closing observed |
| 10-16 16:30 | 40m | -2 / - | R9JT | - / -6 | 2 | ✓ Closing fragment |
| 10-16 16:28 | 40m | +6 / - | OZ1IHB | - / -6 | 2 | ✓ Closing fragment |
| 10-16 16:26 | 40m | -14 / - | R2BJZ | - / +7 | 2 | Partial capture |
| 10-16 16:10 | 40m | -4 / - | UN7PAK | - / -6 | 3 | ✓ Closing fragment |
| 10-16 16:09 | 40m | -2 / - | BA8BLK | - / -20 | 2 | Partial capture |
| 10-16 16:06 | 40m | -6 / - | SQ9BDB | - / -3 | 4 | ✓ Closing fragment |
| 10-16 16:03 | 40m | -1 / - | R2ATU | - / -24 | 3 | Partial capture |
| 10-16 15:53 | 40m | -3 / +2 | RU2F | +1 / +6 | 6 | ✓ Full exchange observed |
| 10-16 15:41 | 40m | 0 / - | RJ4H | - / -1 | 2 | ✓ Closing fragment |
| 10-16 15:37 | 40m | -5 / - | R5GG | - / -15 | 2 | ✓ Closing fragment |
| 10-16 15:36 | 40m | -4 / -2 | ON4UR | -14 / -13 | 2 | Partial capture |
| 10-16 15:35 | 40m | - / - | UF8C | -6 / - | 2 | Partial capture |
| 10-16 15:34 | 40m | -4 / +2 | R4NAN | -11 / - | 3 | ✓ Full exchange observed |
| 10-16 15:32 | 40m | -3 / - | BI6LWM | - / -24 | 2 | Partial capture |
| 10-16 15:31 | 40m | -2 / - | R80SAA | - / - | 2 | ✓ Closing fragment |
| 10-16 15:31 | 40m | - / - | PA2IPA | -14 / - | 3 | Partial capture |
| 10-16 02:49 | 40m | -16 / - | PD8TBK | -17 / - | 2 | ✓ Closing observed |
| 10-15 17:42 | 40m | -8 / - | IU8RHZ | - / - | 3 | Partial capture |
| 10-15 17:41 | 40m | -1 / -5 | 9A2DM | -9 / - | 3 | ✓ Closing observed |
| 10-15 17:23 | 40m | - / -16 | 9A3MRN | +4 / - | 2 | ✓ Closing fragment |
| 10-15 17:21 | 40m | -1 / - | G1PET | - / -11 | 3 | ✓ Closing fragment |
| 10-15 17:13 | 40m | +2 / +4 | UI7N | -2 / - | 4 | ✓ Full exchange observed |
| 10-15 17:10 | 40m | -10 / +8 | M6FPW | -24 / -7 | 3 | ✓ Full exchange observed |
| 10-15 17:07 | 40m | -8 / -10 | IZ0CUV | -17 / -6 | 6 | ✓ Full exchange observed |
| 10-15 17:05 | 40m | -12 / - | DL6KA | -19 / -14 | 4 | ✓ Closing observed |
| 10-15 17:01 | 40m | -7 / - | M7FSE | - / -9 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 170545 -6 1547 R2GBR RM1B R+10 170700 +3 535 PD5TF RM1B KO59 170715 -4 536 RM1B PD5TF -14 170730 +6 535 PD5TF RM1B KO59 (x3) 171230 -10 1739 PD4WAC RM1B KO59 (x2) 171415 +0 1130 Z33B RM1B KO59 171430 -20 1130 RM1B Z33B -13 171445 -7 1130 Z33B RM1B R-14 171500 -10 1130 RM1B Z33B RR73 171515 -5 1130 Z33B RM1B 73 171915 -6 542 BV2NF RM1B 73 172015 -13 1941 9A6CC RM1B KO59
UTC dB Audio Message 162300 -3 1502 RM1B DF8TN R-16 (x3) 163100 -12 2311 RM1B F1THK -09 (x2) 163200 -15 3104 RM1B VU2FR ML88 163200 -5 820 RM1B PD3LKN JO22 163200 -6 2311 RM1B F1THK -09 163300 -16 3104 RM1B VU2FR ML88 163630 -9 2369 RM1B 5Z4VJ KI88 (x3) 170715 +11 584 RM1B F4HTA -14 (x2) 173600 -11 765 DS2MGT RM1B R-17
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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