SP7QJF — 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 SP7QJF, decoded by SO8OO in southeastern Poland. 490 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 53 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-17.
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 490 FT8 messages attributed to SP7QJF as the transmitting token by decoded message structure across 53 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (46%), followed by 80 m (19%) and 20 m (11%). Most decodes (72%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.8 dB.
Overview
Bands
Last attributed message: 2026-10-17 22:04 UTC
Observed FT8 message patterns
- Attributed sample
- 490 messages
- Active dates
- 53 UTC dates
- Estimated median S/N
- -6.8 dB
- Estimated 10th-90th percentile
- -18 to +16 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 91, moderate (-15 to -9 dB) 112, strong (≥ -8 dB) 287.
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 SP7QJF 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 SP7QJF
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
- KO10 · 317 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 106 km (approx.)
- Last such locator decoded
- 2026-10-17 22:04 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 | SP7QJF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-17 22:04 | 80m | +11 / - | S79VU | - / - | 2 | Partial capture |
| 10-16 20:09 | 80m | +18 / - | RD9M/3 | - / - | 5 | Partial capture |
| 10-15 14:08 | 40m | +6 / - | YB1IM | - / -10 | 2 | ✓ Closing fragment |
| 10-15 14:03 | 40m | +5 / - | M9XPN | - / -9 | 5 | ✓ Closing fragment |
| 10-08 14:34 | 40m | -5 / - | AA6AA | - / - | 2 | Partial capture |
| 10-05 22:06 | 80m | - / - | DK8HC | +2 / - | 4 | Partial capture |
| 10-05 22:06 | 80m | +15 / - | IK6DLK | +4 / - | 9 | ✓ Closing observed |
| 10-05 22:05 | 80m | +14 / - | DO5HB | -6 / - | 4 | ✓ Closing observed |
| 10-05 22:03 | 80m | +15 / - | SP4WJ | -13 / - | 10 | ✓ Closing observed |
| 10-05 21:59 | 80m | +14 / - | TT1GD | - / -21 | 12 | ✓ Closing fragment |
| 10-03 23:56 | 60m | -21 / - | 9T0MD | - / - | 10 | Partial capture |
| 10-03 23:51 | 60m | -18 / - | 9T0MD | - / - | 2 | Partial capture |
| 10-03 23:41 | 60m | -23 / - | 9T0MD | - / - | 3 | Partial capture |
| 10-02 21:32 | 80m | +11 / -2 | UB0SMX/P | -15 / - | 2 | Partial capture |
| 10-01 00:35 | 40m | -17 / - | IU5TSN | -14 / - | 4 | ✓ Closing observed |
| 10-01 00:30 | 40m | -14 / - | HK3ZM | - / -15 | 2 | Partial capture |
| 10-01 00:26 | 40m | -15 / +7 | AA3B | -10 / -7 | 5 | ✓ Full exchange observed |
| 10-01 00:20 | 40m | -13 / - | PS7RW | - / -15 | 3 | ✓ Closing fragment |
| 09-28 19:42 | 80m | +26 / -10 | G1CEC | -6 / - | 5 | ✓ Closing observed |
| 09-28 19:42 | 80m | +24 / -3 | RK6OQ | +2 / +2 | 6 | ✓ Full exchange observed |
| 09-28 19:37 | 80m | +22 / - | 7Z1DH | - / -17 | 8 | ✓ Closing fragment |
| 09-23 22:43 | 80m | +16 / 0 | RI1FJZ | -14 / -19 | 5 | ✓ Full exchange observed |
| 09-22 19:46 | 60m | +8 / - | WL5WJZ | - / - | 9 | Partial capture |
| 09-21 19:41 | 40m | - / - | DL9KM | +1 / - | 7 | Partial capture |
| 09-21 19:38 | 40m | -8 / - | RI1FJZ | - / - | 3 | Partial capture |
| 09-19 21:57 | 60m | -20 / - | GM5RDX | - / - | 2 | Partial capture |
| 09-19 21:13 | 80m | +24 / -2 | RY3F | -1 / -14 | 4 | ✓ Full exchange observed |
| 09-19 21:10 | 80m | +23 / - | RI1FJZ | - / -16 | 6 | ✓ Closing fragment |
| 09-19 21:08 | 40m | -4 / - | TA4NNN | - / - | 2 | Partial capture |
| 09-19 21:04 | 80m | +23 / - | RI1FJZ | - / - | 5 | Partial capture |
| 09-17 22:58 | 160m | +11 / - | RI1FJZ | - / -10 | 3 | ✓ Closing fragment |
| 09-17 22:57 | 40m | -16 / - | RV9NTZ | - / - | 2 | Partial capture |
| 09-17 22:21 | 40m | -14 / - | RV9NTZ | - / - | 3 | Partial capture |
| 09-17 22:13 | 40m | -18 / - | RV9NTZ | - / - | 3 | Partial capture |
| 09-17 22:11 | 40m | - / -10 | NQ3N | -10 / - | 2 | Partial capture |
| 09-17 22:09 | 40m | -9 / - | RV9NTZ | - / - | 3 | Partial capture |
| 09-16 22:30 | 160m | -13 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-16 22:30 | 80m | +20 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-16 21:51 | 160m | +15 / - | RI1FJZ | - / -20 | 19 | ✓ Closing fragment |
| 09-16 21:41 | 60m | - / -6 | DH1HF | -21 / - | 6 | Partial capture |
| 08-29 19:42 | 80m | +12 / - | VL4A | - / - | 2 | Partial capture |
| 08-29 18:07 | 60m | +10 / 0 | SP8AWL | +10 / +2 | 7 | ✓ Full exchange observed |
| 08-29 18:06 | 60m | +10 / +9 | ER1CW | -10 / - | 4 | ✓ Closing observed |
| 08-29 18:06 | 60m | +6 / 0 | SP8BJU | +1 / +3 | 3 | Partial capture |
| 08-27 20:55 | 20m | -14 / - | BA6IM | - / -15 | 3 | Partial capture |
| 08-27 20:54 | 20m | - / -7 | 8Z1IT | -10 / - | 2 | ✓ Closing fragment |
| 08-27 00:18 | 80m | +10 / - | CX1UI | - / - | 7 | Partial capture |
| 08-26 15:53 | 40m | +7 / - | ZL1RPC/P | - / -16 | 5 | ✓ Closing fragment |
| 08-26 15:50 | 40m | +8 / - | A43KD | - / -15 | 4 | ✓ Closing fragment |
| 08-24 05:12 | 40m | -10 / - | KJ5PTH | - / -14 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 220800 +7 565 SP7QJF DK8HC JO42 220815 +15 2267 SP4WJ SP7QJF RR73 220830 +4 2015 SP7QJF IK6DLK JN63 (x4) 221015 +15 2267 IK6DLK SP7QJF RR73 221030 +10 2015 SP7QJF IK6DLK 73 200900 +12 2096 RD9M/3 SP7QJF KO10 (x5) 220400 +10 1815 S79VU SP7QJF KO10 (x2)
UTC dB Audio Message 003515 -13 1865 SP7QJF IU5TSN JN53 (x2) 003630 -17 1865 IU5TSN SP7QJF RR73 003645 -14 1865 SP7QJF IU5TSN 73 001515 -7 728 WE9G SP7QJF 73 143430 -3 728 AA6AA SP7QJF KO10 (x2) 140345 +3 2300 M9XPN SP7QJF KO10 (x5) 140815 +6 2300 YB1IM SP7QJF -10 (x2) 140945 +4 2300 BG7BVP SP7QJF RR73
UTC dB Audio Message 234345 -21 1865 9T0MD SP7QJF KO10 (x15)
UTC dB Audio Message 215915 +16 2275 RI1FJZ SP7QJF KO10 (x15)
UTC dB Audio Message 214215 -11 2222 HZ1YJ SP7QJF KO10 (x2) 180045 -3 1915 SP7QJF RA1QX KO99 120345 -18 1193 RI1FJL SP7QJF KO10 140500 -21 2168 SP7QJF BH3HAC OM49 (x2) 202745 -16 973 8Z1IT SP7QJF KO10 203000 -17 693 SP7QJF BD6IIC -02 203015 -15 973 8Z1IT SP7QJF KO10 205400 -24 631 SP7QJF 8Z1IT -07 (x2) 205545 -15 973 BA6IM SP7QJF -15 (x3)
UTC dB Audio Message 112915 -12 2335 SP7QJF 7Z1XX +03 (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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