OH1TK — 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 OH1TK, decoded by SO8OO in southeastern Poland. 886 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 65 UTC dates in the available aggregate history. Observed between 2026-06-08 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 886 FT8 messages attributed to OH1TK as the transmitting token by decoded message structure across 65 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (45%), followed by 40 m (35%) and 10 m (14%). Most decodes (53%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10.4 dB.
Overview
Bands
Last attributed message: 2026-11-04 05:39 UTC
Observed FT8 message patterns
- Attributed sample
- 886 messages
- Active dates
- 65 UTC dates
- Estimated median S/N
- -10.4 dB
- Estimated 10th-90th percentile
- -19 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 221, moderate (-15 to -9 dB) 306, strong (≥ -8 dB) 359.
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 OH1TK 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 OH1TK
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
- KP10 · 548 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,177 km (approx.)
- Last such locator decoded
- 2026-11-04 05:39 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 | OH1TK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-07 14:13 | 10m | - / -6 | KY2J | -9 / - | 3 | Partial capture |
| 11-04 05:24 | 80m | -12 / - | T77RN | - / -16 | 5 | ✓ Closing fragment |
| 11-03 17:58 | 40m | -3 / - | HS5NMF | - / - | 2 | Partial capture |
| 11-03 17:48 | 40m | +1 / - | A92AE | - / - | 3 | Partial capture |
| 11-03 17:46 | 40m | -3 / - | R4LL/6B | - / - | 4 | Partial capture |
| 11-03 17:30 | 40m | -13 / - | HS5NMF | - / - | 3 | Partial capture |
| 11-03 05:53 | 40m | - / - | RV3X | +2 / - | 2 | Partial capture |
| 11-03 05:50 | 40m | -4 / -4 | DK8HC | -11 / -9 | 6 | ✓ Full exchange observed |
| 11-03 05:49 | 40m | -7 / - | CU2DX | - / -14 | 3 | ✓ Closing fragment |
| 11-02 16:17 | 40m | -12 / - | EY7BP | - / - | 2 | Partial capture |
| 11-02 16:14 | 40m | -10 / - | VI40EUDXF | - / -5 | 2 | Partial capture |
| 11-01 15:03 | 40m | - / - | UA3UBV | -12 / - | 2 | Partial capture |
| 11-01 14:43 | 40m | -1 / - | JA1DDZ | - / -14 | 3 | Partial capture |
| 11-01 14:40 | 40m | 0 / - | JR2SHA | - / -16 | 2 | ✓ Closing fragment |
| 11-01 14:39 | 40m | -3 / - | JG3LGD | - / -16 | 3 | ✓ Closing fragment |
| 10-31 05:52 | 40m | -8 / - | GJ0KYZ | - / +10 | 2 | ✓ Closing fragment |
| 10-31 05:51 | 40m | -6 / -12 | 5B4AMX | -14 / -9 | 4 | ✓ Full exchange observed |
| 10-28 13:24 | 10m | - / -10 | ZS6OB | -20 / - | 2 | ✓ Closing fragment |
| 10-27 05:28 | 80m | -8 / -1 | ES6DO | -4 / - | 4 | ✓ Closing observed |
| 10-26 06:05 | 40m | -8 / - | W1AW/KL7 | - / - | 5 | Partial capture |
| 10-26 06:00 | 40m | -16 / +2 | F4FSY | -10 / -6 | 6 | ✓ Full exchange observed |
| 10-26 05:57 | 40m | -11 / - | LU6ETB | - / -6 | 3 | ✓ Closing fragment |
| 10-26 05:55 | 40m | -8 / - | UA9OGC/P | - / - | 3 | Partial capture |
| 10-26 05:53 | 40m | -8 / - | LU6ETB | - / - | 2 | Partial capture |
| 10-24 20:16 | 80m | -8 / - | JH4ADV | -17 / -9 | 3 | ✓ Closing observed |
| 10-24 20:12 | 80m | -8 / - | YL3ASK | - / -12 | 2 | ✓ Closing fragment |
| 10-24 20:11 | 80m | - / - | UA6YW | +6 / - | 2 | Partial capture |
| 10-24 20:10 | 80m | -12 / - | JJ3JHP | - / -13 | 2 | ✓ Closing fragment |
| 10-24 20:06 | 80m | -9 / - | 3W9T | - / -17 | 4 | Partial capture |
| 10-23 05:13 | 40m | -4 / - | WF2A | - / - | 4 | Partial capture |
| 10-21 17:06 | 80m | - / - | R7DX | 0 / - | 2 | Partial capture |
| 10-21 17:03 | 80m | -9 / -5 | YT7DX | +2 / +4 | 5 | ✓ Full exchange observed |
| 10-21 17:00 | 80m | -12 / - | 4L7T | - / -10 | 3 | ✓ Closing fragment |
| 10-21 16:53 | 80m | -16 / - | 4Z5AV | - / - | 2 | Partial capture |
| 10-21 05:42 | 40m | -13 / - | YV6BXN | - / -8 | 3 | ✓ Closing fragment |
| 10-21 05:34 | 40m | -11 / - | YV6BXN | - / - | 2 | Partial capture |
| 10-21 05:32 | 40m | -14 / - | XQ3SK | - / - | 2 | Partial capture |
| 10-21 02:43 | 80m | 0 / - | F5OYA/P | - / - | 2 | Partial capture |
| 10-21 02:40 | 80m | +2 / - | F5OYA/P | - / - | 2 | Partial capture |
| 10-21 02:27 | 80m | -5 / -13 | 9A60CBM | 0 / - | 17 | ✓ Closing observed |
| 10-21 02:27 | 80m | -8 / -12 | DK8HC | -6 / -10 | 9 | ✓ Full exchange observed |
| 10-21 02:27 | 80m | -3 / -8 | IK4TVP | +3 / +4 | 5 | ✓ Full exchange observed |
| 10-21 02:26 | 80m | -6 / -5 | SV5DZR | -18 / +3 | 4 | ✓ Closing observed |
| 10-21 02:23 | 80m | -5 / -8 | HG8LXL | +1 / 0 | 6 | ✓ Full exchange observed |
| 10-21 02:22 | 80m | -8 / -9 | TA4SSK | -12 / -12 | 6 | ✓ Full exchange observed |
| 10-20 05:09 | 40m | -4 / - | YY5EHT | - / - | 2 | Partial capture |
| 10-20 05:00 | 40m | -7 / - | TJ1GD | - / - | 3 | Partial capture |
| 10-20 04:57 | 40m | -2 / - | W7IUV | - / - | 2 | Partial capture |
| 10-10 05:48 | 80m | -17 / -1 | SQ2RAD | -8 / +4 | 8 | ✓ Full exchange observed |
| 10-10 05:47 | 80m | -16 / - | SQ8AZT | -8 / -13 | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 101815 +1 875 OH1TK DJ3HW R+05 (x2) 093330 -21 1739 OH1TK CU2AP RR73 183545 -14 1293 OH1TK CT3MD +00 (x2) 111400 -12 2538 OH1TK V51WH +02 142545 -15 2104 OH1TK CR7CDR IM58 (x3) 113615 -16 2262 OH1TK PP2FRS -14 132445 -17 1898 OH1TK ZS6OB -10 (x2) 141315 -7 2017 OH1TK KY2J -06 (x3)
UTC dB Audio Message 201715 -11 1854 JH4ADV OH1TK R-09 201730 -17 1114 OH1TK JH4ADV RR73 202045 -5 1854 4X6ZK OH1TK R-10 202600 -11 1807 OH1TK SP9UPH JO90 052830 -5 2154 ES6DO OH1TK KP10 052845 -7 2462 OH1TK ES6DO -01 (x2) 052930 -12 2154 ES6DO OH1TK 73 191545 -17 1754 C31CT OH1TK KP10 052445 -11 2604 T77RN OH1TK KP10 (x5) 053915 -6 2554 UA9XL/P OH1TK KP10
UTC dB Audio Message 055300 +3 592 OH1TK RV3X KO84 (x2) 173030 -18 1641 HS5NMF OH1TK KP10 (x3) 174545 -4 2691 PE40EUDXF OH1TK KP10 174615 -4 2691 <R4LL/6B> OH1TK KP10 (x4) 174830 +2 2691 A92AE OH1TK KP10 (x3) 175830 -5 741 HS5NMF OH1TK KP10 (x2)
UTC dB Audio Message 063545 -5 930 OH1TK EA1IOK IN62 (x2) 045245 -3 742 OH1TK CE1KR -12 045645 -2 496 OH1TK PW8BR -12 (x7) 050200 -10 1681 OH1TK VK2GR -13 (x3) 060245 -14 602 OH1TK W1AW/2 -14 171200 -8 2894 OH1TK ZS5HR -18
UTC dB Audio Message 182715 -11 933 OJ0YL OH1TK KP10 (x4) 182900 -7 1806 OH1TK RR73; SV1FJP <...> -12 182945 -12 933 OJ0YL OH1TK 8
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