OT7K — 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 OT7K, decoded by SO8OO in southeastern Poland. 5,601 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 10m, across 41 UTC dates in the available aggregate history. Observed between 2026-09-12 and 2026-11-04.
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 5,601 FT8 messages attributed to OT7K as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (73%), followed by 80 m (27%) and 160 m (0%). Most decodes (53%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (98%); the estimated median was +9 dB.
Overview
Bands
Last attributed message: 2026-11-04 06:34 UTC
Observed FT8 message patterns
- Attributed sample
- 5,601 messages
- Active dates
- 41 UTC dates
- Estimated median S/N
- +9 dB
- Estimated 10th-90th percentile
- +0.4 to +18 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 67, moderate (-15 to -9 dB) 44, strong (≥ -8 dB) 5,490.
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 OT7K 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 OT7K
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
- JO21 · 2,381 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-11-04 06:31 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 | OT7K S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 06:33 | 40m | +2 / - | 9A5MP | -20 / -15 | 4 | ✓ Full exchange observed |
| 11-04 06:32 | 40m | +3 / -3 | IN3ZWF | -5 / 0 | 5 | ✓ Full exchange observed |
| 11-04 06:28 | 40m | +6 / - | K5RJM | - / -5 | 2 | ✓ Closing fragment |
| 11-04 06:28 | 40m | +5 / -3 | SQ4PKO | -5 / -7 | 6 | ✓ Full exchange observed |
| 11-04 06:26 | 40m | +12 / -2 | OE6OCG | -6 / -1 | 5 | ✓ Full exchange observed |
| 11-04 06:19 | 40m | +12 / - | W5RBD | - / -13 | 2 | ✓ Closing fragment |
| 11-04 06:16 | 40m | +4 / - | EB3CGQ | - / -12 | 2 | ✓ Closing fragment |
| 11-04 06:13 | 40m | +4 / - | LU6WAV | - / -18 | 2 | ✓ Closing fragment |
| 11-04 06:13 | 40m | +8 / - | PG0T | -11 / -16 | 10 | Partial capture |
| 11-04 06:12 | 40m | -1 / - | SP2ZST | -18 / -8 | 3 | ✓ Closing observed |
| 11-04 06:10 | 40m | +4 / - | K5MGY | - / -6 | 3 | ✓ Closing fragment |
| 11-04 06:09 | 40m | - / -12 | GJ0KYZ | -6 / - | 2 | Partial capture |
| 11-04 06:04 | 40m | +4 / - | DL1BBO | -7 / -16 | 4 | ✓ Closing observed |
| 11-04 06:00 | 40m | +10 / - | N9CBW | - / -15 | 2 | ✓ Closing fragment |
| 11-04 05:58 | 40m | +7 / -2 | UT8SQ | -4 / -8 | 5 | ✓ Full exchange observed |
| 11-04 05:57 | 40m | +6 / - | HI8WJI | - / -11 | 2 | ✓ Closing fragment |
| 11-04 05:56 | 40m | - / -11 | F4ELU | -10 / - | 2 | Partial capture |
| 11-04 05:55 | 40m | +8 / - | KJ5DZV | - / -13 | 2 | ✓ Closing fragment |
| 11-04 05:54 | 40m | 0 / - | W5AJ | - / -13 | 2 | ✓ Closing fragment |
| 11-04 05:54 | 40m | - / - | DL1BBO | -2 / - | 3 | Partial capture |
| 11-04 05:53 | 40m | +2 / - | RA6FCU/P | - / -18 | 2 | Partial capture |
| 11-02 21:40 | 40m | -16 / - | JA8LJL | - / -11 | 2 | ✓ Closing fragment |
| 11-02 21:20 | 40m | -16 / - | BG5JKZ | - / - | 2 | Partial capture |
| 11-02 21:18 | 40m | -18 / - | JA0HXV | - / -8 | 2 | ✓ Closing fragment |
| 11-02 21:18 | 40m | - / - | EA5FD | -3 / - | 3 | Partial capture |
| 11-02 21:14 | 40m | -18 / - | BG7BUM | - / -9 | 2 | ✓ Closing fragment |
| 11-02 21:12 | 40m | -17 / - | N4FIG | - / -16 | 2 | ✓ Closing fragment |
| 11-02 21:10 | 40m | -18 / - | BH6SXJ | - / -16 | 2 | ✓ Closing fragment |
| 11-02 21:05 | 40m | -20 / - | LY2BBF | - / -10 | 2 | ✓ Closing fragment |
| 11-02 21:04 | 40m | - / - | M7LYG | -10 / - | 3 | Partial capture |
| 11-02 21:02 | 40m | -19 / - | JF2WXS | - / -17 | 2 | ✓ Closing fragment |
| 11-02 20:50 | 40m | -6 / - | YO2CR | - / -6 | 2 | ✓ Closing fragment |
| 11-02 20:43 | 40m | -7 / - | R5VCW | - / -17 | 3 | ✓ Closing fragment |
| 11-02 20:40 | 40m | -14 / - | JH2AMN | - / +1 | 2 | ✓ Closing fragment |
| 11-02 20:38 | 40m | - / -8 | GJ0KYZ | -1 / - | 3 | Partial capture |
| 10-30 20:38 | 160m | - / - | OK1DXR | -1 / - | 6 | Partial capture |
| 10-30 20:38 | 160m | -18 / - | SP6TK | 0 / -5 | 8 | Partial capture |
| 10-30 20:22 | 160m | -6 / - | JA6MWW | - / -19 | 2 | Partial capture |
| 10-30 20:18 | 160m | +9 / - | JR7ILA | - / -17 | 3 | Partial capture |
| 10-29 20:59 | 80m | - / - | YL3NU | -7 / - | 3 | Partial capture |
| 10-29 20:56 | 80m | +13 / - | JH7WNV | - / -17 | 5 | ✓ Closing fragment |
| 10-29 20:55 | 80m | +13 / - | JR2XOM | - / -17 | 2 | Partial capture |
| 10-29 20:51 | 80m | +12 / - | JH7WNV | - / - | 3 | Partial capture |
| 10-29 20:40 | 80m | - / - | SP9JMZ | -6 / - | 4 | Partial capture |
| 10-29 20:39 | 80m | +17 / - | JA7QVK | - / -14 | 2 | ✓ Closing fragment |
| 10-29 20:13 | 80m | +10 / - | 7M4XDV | - / -18 | 2 | Partial capture |
| 10-29 20:10 | 80m | +18 / - | JA7BXS | - / -18 | 3 | ✓ Closing fragment |
| 10-29 20:07 | 80m | +16 / - | BA4IAW | - / -18 | 3 | Partial capture |
| 10-29 20:06 | 80m | +15 / - | JF1NZW | - / -18 | 2 | ✓ Closing fragment |
| 10-29 19:53 | 40m | +12 / - | JO4IPQ | - / -18 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 063000 -3 1601 OT7K SQ4PKO R-03 063015 +4 1601 SQ4PKO OT7K RR73 063030 -7 1601 OT7K SQ4PKO 73 063045 +0 1601 CQ OT7K JO21 (x3) 063200 -3 1681 OT7K IN3ZWF JN56 063215 +2 1601 IN3ZWF OT7K +00 063230 -4 1681 OT7K IN3ZWF R-03 063245 +4 1601 IN3ZWF OT7K RR73 063300 -7 1682 OT7K IN3ZWF 73 063330 -22 1318 OT7K 9A5MP +16 063345 +0 1600 9A5MP OT7K R-15 063400 -19 1318 OT7K 9A5MP RR73 063415 +3 1601 9A5MP OT7K 73
UTC dB Audio Message 203800 +0 1595 OT7K SP6TK JO80 203800 -4 1301 OT7K OK1DXR JO60 203830 -1 1595 OT7K SP6TK JO80 203830 -1 1301 OT7K OK1DXR JO60 203900 +3 1595 OT7K SP6TK JO80 203900 +2 1301 OT7K OK1DXR JO60 203915 -15 1540 <6W/IK2HKT> OT7K JO21 203930 +3 1595 OT7K SP6TK JO80 203930 -2 1301 OT7K OK1DXR JO60 204000 +0 1595 OT7K SP6TK JO80 204000 -1 1301 OT7K OK1DXR JO60 204030 -2 1595 OT7K SP6TK JO80 204030 +0 1301 OT7K OK1DXR JO60 204100 -3 1595 OT7K SP6TK JO80 204115 -18 1540 SP6TK OT7K -05
UTC dB Audio Message 204200 -5 606 OT7K SP9JMZ JO90 205015 +12 1606 JH7WMV OT7K JO21 205115 +12 605 JH7WNV OT7K JO21 (x3) 205515 +18 605 JR2XOM OT7K -17 (x2) 205645 +15 1606 JH7WNV OT7K -17 (x4) 205900 -10 2201 OT7K YL3NU KO27 205915 +8 1606 JH7WNV OT7K 73 210030 -7 2201 OT7K YL3NU KO27 (x2)
UTC dB Audio Message 135300 -11 603 OT7K IZ2BVJ R-16 140015 -11 604 LU8EJU OT7K RR73 160745 -10 891 OT7K CR7BZN IM58
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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