JF1SQC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JF1SQC, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-02 and 2026-09-20.
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 25 FT8 messages attributed to JF1SQC as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (96%), followed by 80 m (4%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-20 19:29 UTC
Observed FT8 message patterns
- Attributed sample
- 25 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -15 dB
- Estimated 10th-90th percentile
- -19 to -13 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 0.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with JF1SQC in decoded directed-looking exchanges:
Most frequent locator attributed to JF1SQC
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
- PM95 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,693 km (approx.)
- Last such locator decoded
- 2026-09-20 19:25 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 | JF1SQC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 19:47 | 80m | - / -15 | DK7ZT | -2 / - | 5 | Partial capture |
| 09-20 19:46 | 80m | - / - | IV3GHY | +16 / - | 2 | Partial capture |
| 09-20 19:45 | 80m | - / -12 | OZ1ADL | +1 / - | 3 | ✓ Closing fragment |
| 09-20 19:44 | 80m | - / - | IU0VYT | -2 / - | 5 | Partial capture |
| 09-20 19:28 | 40m | - / - | DL1ESZ | -3 / - | 4 | Partial capture |
| 09-20 19:27 | 40m | -15 / -17 | SM7OYP | +4 / -12 | 7 | ✓ Full exchange observed |
| 09-20 19:26 | 40m | -12 / - | UB3DQL | -18 / -8 | 3 | Partial capture |
| 09-20 19:25 | 40m | -16 / -20 | PE1NPS | -7 / - | 6 | ✓ Closing observed |
| 09-20 19:25 | 40m | - / -2 | R3MAR | -6 / - | 2 | Partial capture |
| 09-20 19:21 | 40m | - / -8 | R9FE | -3 / - | 3 | ✓ Closing fragment |
| 09-20 19:20 | 40m | - / -14 | S51UN | -2 / - | 2 | ✓ Closing fragment |
| 09-20 19:18 | 40m | - / -15 | DF1TS | +3 / - | 2 | ✓ Closing fragment |
| 09-20 19:15 | 40m | - / -8 | HB9ELE | +12 / - | 3 | ✓ Closing fragment |
| 09-20 19:14 | 40m | -15 / -16 | EA8AQV | -13 / -14 | 4 | ✓ Full exchange observed |
| 09-20 19:13 | 40m | - / - | DL8UVG | +2 / - | 6 | Partial capture |
| 09-20 19:13 | 40m | - / - | PE1NPS | -6 / - | 4 | Partial capture |
| 09-20 19:10 | 40m | -16 / - | SP9TBT | - / -15 | 2 | Partial capture |
| 09-20 19:09 | 40m | - / -14 | PE1OID | -3 / - | 12 | ✓ Closing fragment |
| 09-20 19:06 | 40m | -14 / - | EA7HG | - / -15 | 2 | ✓ Closing fragment |
| 09-20 19:06 | 40m | - / -3 | Z34K | 0 / - | 5 | Partial capture |
| 09-20 19:05 | 40m | -15 / - | RW4F | - / -10 | 2 | ✓ Closing fragment |
| 09-20 19:05 | 40m | -17 / -11 | DK7ZT | -3 / -15 | 4 | ✓ Full exchange observed |
| 09-20 19:03 | 40m | -15 / -9 | UT9NA | +7 / - | 6 | ✓ Closing observed |
| 09-20 19:03 | 40m | -15 / - | HZ1TT | - / -10 | 3 | ✓ Closing fragment |
| 09-20 18:59 | 160m | - / - | RA3ZH | -3 / - | 4 | Partial capture |
| 09-20 18:54 | 160m | - / -22 | UW5ZM | +23 / - | 3 | ✓ Closing fragment |
| 09-19 17:15 | 80m | - / -16 | LZ2JE | +14 / - | 4 | ✓ Closing fragment |
| 09-19 16:49 | 160m | - / -12 | EX7CQ | -17 / - | 3 | ✓ Closing fragment |
| 09-19 16:42 | 160m | - / - | RY7F | -13 / - | 3 | Partial capture |
| 09-02 19:23 | 80m | - / -15 | SP9KR | +14 / - | 4 | ✓ Closing fragment |
| 09-02 17:37 | 40m | - / - | S54A | +2 / - | 2 | Partial capture |
| 09-02 17:35 | 40m | - / -13 | R3TY | -3 / - | 3 | ✓ Closing fragment |
| 09-02 17:34 | 40m | - / -15 | YO8RQP | 0 / - | 3 | ✓ Closing fragment |
| 09-02 17:33 | 40m | - / -10 | 9A4ZM | +3 / - | 3 | ✓ Closing fragment |
| 09-02 17:31 | 40m | - / -22 | UB1CCL | -8 / - | 2 | ✓ Closing fragment |
| 09-02 17:27 | 40m | - / -11 | SQ4WMA | -8 / - | 2 | Partial capture |
| 09-02 17:21 | 40m | - / -4 | OK1UG | +9 / - | 5 | ✓ Closing fragment |
| 09-02 17:17 | 40m | - / - | DJ8UU | -1 / - | 7 | Partial capture |
| 09-02 17:15 | 40m | -17 / -13 | SP6FME | +4 / -12 | 3 | ✓ Full exchange observed |
| 09-02 17:14 | 40m | -18 / -6 | OE1AVO | +6 / -15 | 4 | ✓ Full exchange observed |
| 09-02 17:13 | 40m | - / - | DL7VBH | -8 / - | 2 | Partial capture |
| 09-02 17:13 | 40m | - / -8 | SP9UPH | +20 / - | 2 | ✓ Closing fragment |
| 09-02 17:11 | 40m | -19 / -10 | HA5CPN | +14 / - | 3 | ✓ Closing observed |
| 09-02 17:06 | 40m | - / -14 | R2AVW | 0 / - | 2 | ✓ Closing fragment |
| 09-02 17:03 | 40m | - / -8 | UR1CCT | +14 / - | 3 | ✓ Closing fragment |
| 09-02 15:49 | 80m | - / -15 | RU3ACA | -7 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194415 -5 2028 JF1SQC IU0VYT JN61 (x2) 194515 +2 954 JF1SQC OZ1ADL -12 194515 -4 2028 JF1SQC IU0VYT JN61 194545 -7 954 JF1SQC OZ1ADL -12 194545 -6 2028 JF1SQC IU0VYT JN61 194615 +7 955 JF1SQC OZ1ADL RR73 194615 +3 2028 JF1SQC IU0VYT JN61 194645 +20 2764 JF1SQC IV3GHY JN65 (x2) 194715 -4 1149 JF1SQC DK7ZT -15 (x5)
UTC dB Audio Message 192700 -16 1842 PE1NPS JF1SQC RR73 192715 -5 2087 JF1SQC PE1NPS 73 192730 -12 1842 UB3DQL JF1SQC -08 192745 +7 2844 JF1SQC SM7OYP JO66 (x2) 192815 -1 486 JF1SQC DL1ESZ JO31 192830 -15 1842 SM7OYP JF1SQC -12 192845 +3 2844 JF1SQC SM7OYP JO66 192845 -5 487 JF1SQC DL1ESZ JO31 192900 -15 1842 SM7OYP JF1SQC -14 192915 +6 2844 JF1SQC SM7OYP R-17 192915 -5 486 JF1SQC DL1ESZ JO31 192945 +4 1882 JF1SQC SP3GHC JO82 192945 +2 2844 JF1SQC SM7OYP 73 192945 -1 487 JF1SQC DL1ESZ JO31
UTC dB Audio Message 164215 -13 2244 JF1SQC RY7F LN04 (x3) 164930 -19 1690 JF1SQC EX7CQ R-12 (x3) 185430 +17 343 JF1SQC UW5ZM KN57 (x3) 185930 -2 303 JF1SQC RA3ZH KO81 (x4)
UTC dB Audio Message 184015 -5 1020 JF1SQC DK9TZ JN48
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee