RJ8C — 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 RJ8C, decoded by SO8OO in southeastern Poland. 87 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-20.
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 87 FT8 messages attributed to RJ8C as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (89%), followed by 20 m (10%) and 80 m (1%). Most decodes (98%) fell within the six-hour window 09:00-15:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (84%); the estimated median was -19 dB.
Overview
Bands
Last attributed message: 2026-10-20 14:35 UTC
Observed FT8 message patterns
- Attributed sample
- 87 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -19 dB
- Estimated 10th-90th percentile
- -21 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 73, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 8.
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 RJ8C 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 RJ8C
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
- MO07 · 22 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,670 km (approx.)
- Last such locator decoded
- 2026-10-20 14:31 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 | RJ8C S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-20 14:34 | 40m | -19 / - | JD1BQP | - / -18 | 2 | Partial capture |
| 10-20 14:32 | 40m | -20 / -2 | OK1UG | -5 / -6 | 5 | ✓ Full exchange observed |
| 10-20 14:28 | 40m | -17 / - | BG5CNL | - / -11 | 4 | ✓ Closing fragment |
| 10-20 14:28 | 40m | -18 / - | RW0AE | - / 0 | 2 | ✓ Closing fragment |
| 10-20 14:27 | 40m | -20 / -12 | IQ4JO | -6 / - | 4 | ✓ Closing observed |
| 10-20 14:25 | 40m | -18 / -3 | RA7Z | -11 / -8 | 5 | ✓ Full exchange observed |
| 10-20 14:23 | 40m | -20 / - | BG7MOM | - / -15 | 2 | ✓ Closing fragment |
| 10-20 14:21 | 40m | -16 / -12 | RA6ZC | -10 / - | 4 | ✓ Full exchange observed |
| 10-20 14:19 | 40m | -20 / -6 | SN0EG | -15 / +2 | 6 | ✓ Full exchange observed |
| 10-20 14:18 | 40m | -20 / - | AP2SAA | - / -7 | 2 | ✓ Closing fragment |
| 10-20 14:15 | 40m | -22 / -11 | RA4ABH | -18 / +1 | 3 | Partial capture |
| 10-20 14:15 | 40m | -18 / - | UN7BPH | - / - | 2 | ✓ Closing fragment |
| 10-20 14:11 | 40m | - / -10 | RA3LBW | -14 / - | 4 | ✓ Closing fragment |
| 10-20 13:59 | 40m | - / - | R6ZL | -1 / - | 3 | Partial capture |
| 10-20 13:58 | 40m | -18 / - | JH7AUL | - / -7 | 2 | Partial capture |
| 10-20 13:52 | 40m | - / -17 | RW4W | -15 / - | 3 | Partial capture |
| 10-20 13:51 | 40m | - / - | R6ZL | -2 / - | 2 | Partial capture |
| 10-20 13:49 | 40m | -20 / - | R9SCJ | - / -18 | 2 | Partial capture |
| 10-20 13:48 | 40m | -18 / - | BG7MOM | - / -17 | 2 | ✓ Closing fragment |
| 10-13 14:07 | 40m | - / -10 | E70SZ | -8 / - | 5 | ✓ Closing fragment |
| 10-13 13:57 | 40m | - / +3 | RU3VQ | -15 / - | 3 | ✓ Closing fragment |
| 10-13 04:58 | 40m | - / - | RD3FY | -3 / - | 3 | Partial capture |
| 10-13 04:55 | 40m | - / -17 | UA3WG | -11 / - | 2 | ✓ Closing fragment |
| 10-10 13:39 | 40m | - / - | OM5ALL | -21 / - | 2 | Partial capture |
| 09-21 14:47 | 40m | -17 / - | JP7TIT | - / -20 | 2 | ✓ Closing fragment |
| 09-21 14:45 | 40m | - / -12 | ON1DGN | -16 / - | 3 | Partial capture |
| 09-21 14:44 | 40m | -20 / - | BD1CAZ | - / -16 | 2 | ✓ Closing fragment |
| 09-21 14:43 | 40m | -18 / - | 5W1SA | - / -20 | 2 | Partial capture |
| 09-21 14:37 | 40m | -19 / - | 5W1SA | - / -19 | 5 | Partial capture |
| 09-21 14:35 | 40m | - / -17 | DL6KA | -12 / - | 8 | Partial capture |
| 09-21 14:32 | 40m | - / - | LA2GCA | -12 / - | 2 | Partial capture |
| 09-21 14:29 | 40m | -18 / -11 | RV9CX | -15 / - | 2 | ✓ Closing observed |
| 09-21 14:28 | 40m | -20 / - | BD4UJ | - / -12 | 3 | Partial capture |
| 09-21 14:25 | 40m | -20 / - | RN0JJ | - / -13 | 2 | ✓ Closing fragment |
| 09-21 14:23 | 40m | -22 / -13 | DF0PDF | 0 / -9 | 5 | ✓ Full exchange observed |
| 09-21 14:22 | 40m | - / -7 | R3LCW | -3 / - | 3 | ✓ Closing fragment |
| 09-13 12:43 | 40m | - / -10 | RU6K | -10 / - | 2 | ✓ Closing fragment |
| 09-13 12:43 | 40m | - / -16 | YO8AAZ | -3 / - | 31 | Partial capture |
| 08-29 14:30 | 40m | - / -10 | RQ6B | -20 / - | 2 | Partial capture |
| 08-29 14:16 | 40m | - / 0 | RA3X | -15 / - | 3 | ✓ Closing fragment |
| 08-29 14:10 | 40m | - / -12 | R6YBU | -18 / - | 4 | ✓ Closing fragment |
| 08-29 13:56 | 40m | - / -14 | RC6OG | -2 / - | 4 | ✓ Closing fragment |
| 08-07 15:37 | 40m | - / -10 | EW2GI | -18 / - | 2 | ✓ Closing fragment |
| 08-01 15:35 | 40m | - / -4 | RN3ZBX | -21 / - | 2 | ✓ Closing fragment |
| 08-01 15:25 | 40m | - / - | YO6QDY | -14 / - | 2 | Partial capture |
| 07-30 17:39 | 40m | - / -12 | PA3BRB | -21 / - | 6 | Partial capture |
| 07-30 17:32 | 40m | - / - | PA3BRB | -20 / - | 4 | Partial capture |
| 07-30 17:31 | 40m | - / -7 | RK3BM | -15 / - | 3 | ✓ Closing fragment |
| 07-30 17:28 | 40m | - / -4 | S59A | +6 / - | 2 | ✓ Closing fragment |
| 07-30 17:27 | 40m | - / - | PA3BRB | -22 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 142915 -17 1796 RW0AE RJ8C 73 142945 -18 1796 BG5CNL RJ8C -11 (x3) 143115 -18 1795 CQ RJ8C MO07 (x2) 143230 -2 1795 RJ8C OK1UG JN89 143245 -21 1796 OK1UG RJ8C -06 143300 -3 1795 RJ8C OK1UG R-02 143315 -20 1795 OK1UG RJ8C RR73 143330 -9 1796 RJ8C OK1UG 73 143415 -19 1796 JD1BQP RJ8C -18 143430 -22 1795 RJ8C M9XPN IO91 143445 -19 1795 JD1BQP RJ8C -18 143515 -17 1795 R1TET RJ8C +16
UTC dB Audio Message 140330 -23 1741 CQ RJ8C MO07
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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee