KT4ZX — 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 KT4ZX, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-10-22.
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 8 FT8 messages attributed to KT4ZX as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (50%), followed by 40 m (50%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-22 03:37 UTC
Observed FT8 message patterns
- Attributed sample
- 8 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -20 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 1.
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 KT4ZX in decoded directed-looking exchanges:
Most frequent locator attributed to KT4ZX
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
- EM78 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,859 km (approx.)
- Last such locator decoded
- 2026-10-22 03:37 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 | KT4ZX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 03:34 | 60m | - / -14 | EA3NE | +3 / - | 3 | ✓ Closing fragment |
| 10-22 02:50 | 60m | - / +3 | OS4K | -20 / - | 2 | Partial capture |
| 10-22 02:48 | 60m | - / -13 | IZ2DDY | +6 / - | 3 | ✓ Closing fragment |
| 10-22 02:10 | 60m | - / -12 | 9K2GR | -5 / - | 2 | ✓ Closing fragment |
| 10-21 07:18 | 60m | - / - | DM2GM | -18 / - | 3 | Partial capture |
| 10-21 07:14 | 60m | - / - | DM2GM | -20 / - | 3 | Partial capture |
| 10-21 07:10 | 60m | - / - | DM2GM | -20 / - | 3 | Partial capture |
| 10-21 07:10 | 60m | - / -6 | PA4PA | +8 / - | 5 | ✓ Closing fragment |
| 10-21 07:08 | 60m | - / -2 | IK5CVV | -9 / - | 3 | ✓ Closing fragment |
| 10-21 07:07 | 60m | - / -4 | HB9ACA | -15 / - | 2 | ✓ Closing fragment |
| 10-21 07:03 | 60m | - / -6 | DK7UY | 0 / - | 2 | ✓ Closing fragment |
| 10-21 06:48 | 80m | - / - | G7FPE | -18 / - | 2 | Partial capture |
| 10-21 06:44 | 80m | - / -13 | F4EGM | -12 / - | 5 | ✓ Closing fragment |
| 10-21 06:43 | 80m | - / -4 | EA1DR | -18 / - | 4 | ✓ Closing fragment |
| 10-20 01:58 | 60m | - / -18 | E74K | +12 / - | 4 | ✓ Closing fragment |
| 10-20 01:58 | 60m | - / -8 | ON7GB | +3 / - | 4 | ✓ Closing fragment |
| 10-17 04:15 | 80m | - / - | F5LMJ | -20 / - | 2 | Partial capture |
| 10-17 04:01 | 60m | - / - | DG4SCG | -20 / - | 2 | ✓ Closing fragment |
| 10-17 04:00 | 60m | - / -14 | SP1ZMO | -18 / - | 2 | Partial capture |
| 10-17 03:58 | 60m | -24 / 0 | SV8SXV | -13 / - | 4 | ✓ Closing observed |
| 10-17 03:56 | 60m | - / - | OE5DML | -3 / - | 3 | Partial capture |
| 10-16 05:05 | 60m | - / -16 | DL8TV | -8 / - | 4 | ✓ Closing fragment |
| 10-16 05:05 | 60m | - / -6 | F5NKX | -19 / - | 2 | ✓ Closing fragment |
| 10-16 05:04 | 60m | - / - | EA5PS | -18 / - | 2 | ✓ Closing fragment |
| 10-16 05:04 | 60m | - / -16 | IW1GB | -2 / - | 3 | Partial capture |
| 10-16 04:59 | 60m | - / -14 | SP9RCL | -16 / - | 4 | ✓ Closing fragment |
| 10-16 04:59 | 60m | - / +2 | F5MXH | -6 / - | 3 | ✓ Closing fragment |
| 10-16 04:57 | 60m | - / - | DL4YCG | -7 / - | 2 | Partial capture |
| 10-16 04:57 | 60m | - / -19 | PE1NMM | +7 / - | 4 | ✓ Closing fragment |
| 10-16 04:54 | 60m | - / -14 | SP5EXA | -2 / - | 5 | ✓ Closing fragment |
| 10-16 04:53 | 60m | - / -3 | EA5D | -8 / - | 2 | ✓ Closing fragment |
| 10-16 04:51 | 60m | - / -15 | LY1CX | -20 / - | 2 | Partial capture |
| 10-16 04:50 | 60m | - / -16 | PC2J | -11 / - | 3 | ✓ Closing fragment |
| 10-16 03:16 | 60m | - / -2 | IS0BOZ | -10 / - | 2 | ✓ Closing fragment |
| 10-16 03:01 | 60m | - / -20 | Z35T | -6 / - | 2 | ✓ Closing fragment |
| 10-16 00:56 | 60m | - / - | PC2J | -4 / - | 10 | Partial capture |
| 10-15 04:59 | 60m | - / -4 | DL3YEE | -2 / - | 4 | ✓ Closing fragment |
| 10-15 04:56 | 60m | - / - | DJ1NE | -18 / - | 3 | Partial capture |
| 10-15 04:56 | 60m | - / -4 | DL9DWR | -7 / - | 4 | ✓ Closing fragment |
| 10-15 04:55 | 60m | - / - | DK2YCT | -16 / - | 2 | ✓ Closing fragment |
| 10-15 04:54 | 60m | - / -15 | IK5HHA | -3 / - | 3 | ✓ Closing fragment |
| 10-15 04:52 | 60m | - / 0 | PA1AW | -8 / - | 4 | ✓ Closing fragment |
| 10-15 04:52 | 60m | - / -13 | OM7ASP | -6 / - | 3 | ✓ Closing fragment |
| 10-15 04:51 | 60m | - / +2 | F5NLY | -15 / - | 3 | ✓ Closing fragment |
| 10-15 04:48 | 60m | - / -5 | IT9VCE | -8 / - | 3 | ✓ Closing fragment |
| 10-15 04:48 | 60m | - / - | DF4BJ | -17 / - | 3 | Partial capture |
| 10-15 04:47 | 60m | - / - | DL3FBI | -12 / - | 2 | Partial capture |
| 10-15 04:47 | 60m | - / - | DK6AH | -13 / - | 3 | Partial capture |
| 10-15 04:44 | 60m | - / - | IW0BYL | -19 / - | 2 | Partial capture |
| 10-15 04:39 | 60m | - / - | DK6AH | -20 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 011700 -24 1878 KT4ZX OS4K -03 021000 -5 1735 KT4ZX 9K2GR -12 (x2) 024745 -5 2910 4X1FK KT4ZX 73 024830 +6 1864 KT4ZX IZ2DDY JN45 (x3) 025000 -19 1877 KT4ZX OS4K +03 (x2) 033400 -13 1571 KT4ZX 4X1GA -15 033430 -3 1180 KT4ZX EA3NE -14 (x3) 033630 -12 1571 KT4ZX 4X1GA -15 033715 -22 1510 C31KC KT4ZX EM78
UTC dB Audio Message 041030 +5 2694 KT4ZX OH5BM RR73 040930 -2 2203 KT4ZX F4EGM JN29 041530 -19 1856 KT4ZX F5LMJ JN28 (x2) 064330 -17 1782 KT4ZX EA1DR -04 (x2) 064430 -13 2079 KT4ZX F4EGM JN29 064430 -18 1782 KT4ZX EA1DR -04 (x2) 064530 -9 2228 KT4ZX F4EGM JN29 (x2) 064800 -20 1707 KT4ZX G7FPE JO01 064800 -14 2004 KT4ZX F4EGM R-13 (x2) 064900 -17 1707 KT4ZX G7FPE JO01
UTC dB Audio Message 160330 -8 2495 KT4ZX CR7BUW IM58
UTC dB Audio Message 044400 -14 1882 KT4ZX OS4K -13 (x2) 070600 -9 2553 KT4ZX F4LWD R-09 070630 -9 2260 KT4ZX IK2ZJR JN45 070630 -7 2553 KT4ZX F4LWD 73 070630 -17 969 KT4ZX F4ENR JN39 070700 -9 2260 KT4ZX IK2ZJR R-13 (x2) 071700 -7 2890 KT4ZX GU0SUP IN89 (x3) 024515 -9 2596 KT4ZX A99AA -19 (x2) 024130 -18 1867 KT4ZX C5R RR73 030730 -11 1134 KT4ZX F4MXT/P +02
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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