SV4YQ — 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 SV4YQ, decoded by SO8OO in southeastern Poland. 853 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 86 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-11-07.
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 853 FT8 messages attributed to SV4YQ as the transmitting token by decoded message structure across 86 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 80 m (23%) and 10 m (6%). The busiest six-hour window was 01:00-07:00 UTC, containing 45% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-11-07 07:15 UTC
Observed FT8 message patterns
- Attributed sample
- 853 messages
- Active dates
- 86 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -19 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 191, moderate (-15 to -9 dB) 310, strong (≥ -8 dB) 352.
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 SV4YQ 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 SV4YQ
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
- KM19 · 589 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,164 km (approx.)
- Last such locator decoded
- 2026-11-07 07:12 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 | SV4YQ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-07 07:11 | 40m | -16 / - | IQ0PG | -16 / - | 9 | ✓ Closing observed |
| 11-06 20:52 | 80m | - / -3 | IR0PG | -10 / - | 2 | ✓ Closing fragment |
| 11-06 19:38 | 40m | -13 / +4 | IU0JIW | -6 / - | 3 | ✓ Closing observed |
| 11-06 19:33 | 60m | -8 / +10 | IR0PG | -4 / +5 | 3 | Partial capture |
| 11-06 18:18 | 40m | - / -10 | IW0HLZ | 0 / - | 2 | ✓ Closing fragment |
| 11-06 17:05 | 40m | -16 / - | IU0JIW | -8 / +9 | 3 | ✓ Closing observed |
| 11-06 16:53 | 40m | - / - | G0RVY | +4 / - | 2 | Partial capture |
| 11-06 05:33 | 40m | -6 / +1 | IR0PG | -12 / - | 4 | ✓ Closing observed |
| 11-05 16:12 | 40m | +1 / -1 | II1FAIR | +10 / -2 | 3 | Partial capture |
| 11-04 19:41 | 40m | -7 / - | II1FAIR | - / -13 | 2 | Partial capture |
| 11-02 18:48 | 40m | -6 / - | UA9XL/P | - / -13 | 2 | Partial capture |
| 11-02 16:10 | 40m | -13 / - | DK80NDS | - / +10 | 3 | Partial capture |
| 11-02 08:15 | 40m | -7 / 0 | II1FAIR | +9 / +4 | 3 | Partial capture |
| 11-02 08:08 | 40m | -14 / -17 | PF40EUDXF | -8 / -19 | 7 | Partial capture |
| 11-02 08:06 | 40m | -15 / - | YO1BRANCUSI | - / - | 3 | Partial capture |
| 11-01 16:15 | 60m | - / - | 9A4ZM | 0 / - | 2 | Partial capture |
| 11-01 16:14 | 60m | -14 / - | 6W/IK2HKT | - / - | 2 | Partial capture |
| 11-01 14:43 | 40m | - / -8 | RC9WC | -13 / - | 2 | Partial capture |
| 11-01 05:43 | 40m | +8 / - | YO1BRANCUSI | - / -1 | 2 | Partial capture |
| 10-30 06:27 | 40m | -7 / - | TC4TR | - / - | 7 | Partial capture |
| 10-30 06:22 | 40m | -4 / - | IQ0AK | - / -5 | 3 | ✓ Closing fragment |
| 10-30 06:17 | 40m | -7 / - | TC4TR | - / - | 2 | Partial capture |
| 10-30 05:52 | 40m | - / - | DL1BBO | -3 / - | 2 | Partial capture |
| 10-30 05:50 | 40m | -12 / - | LZ26IPA | - / -12 | 3 | Partial capture |
| 10-28 06:08 | 40m | -18 / - | TC2TR | -19 / - | 2 | ✓ Closing observed |
| 10-28 05:27 | 40m | -4 / - | TC6ATA | - / - | 4 | Partial capture |
| 10-28 05:21 | 40m | -8 / - | TC4TR | - / -10 | 5 | ✓ Closing fragment |
| 10-28 05:17 | 40m | -7 / - | TC6ATA | - / - | 5 | Partial capture |
| 10-28 05:15 | 40m | -5 / - | TC4TR | - / - | 4 | Partial capture |
| 10-22 22:52 | 80m | -3 / -15 | YU65AEC | -5 / -14 | 5 | Partial capture |
| 10-19 08:13 | 40m | -14 / - | IZ2QPP | - / - | 5 | Partial capture |
| 10-19 06:58 | 40m | -17 / -23 | OR82CLM | -16 / -16 | 2 | Partial capture |
| 10-18 18:38 | 60m | -10 / -2 | IZ2WYA | -8 / - | 3 | ✓ Closing observed |
| 10-17 07:19 | 40m | -10 / - | SV1PLJ | - / - | 3 | ✓ Closing fragment |
| 10-17 06:13 | 60m | - / -12 | IQ3TR | -5 / - | 5 | ✓ Closing fragment |
| 10-17 05:42 | 40m | - / - | DK8HC | -6 / - | 3 | Partial capture |
| 10-16 16:54 | 40m | +1 / -17 | IQ3TR | -8 / - | 3 | ✓ Closing observed |
| 10-14 20:00 | 40m | -7 / - | IQ3TR | - / -12 | 2 | Partial capture |
| 10-14 06:11 | 40m | -10 / +5 | LZ1DPP | -10 / - | 4 | ✓ Full exchange observed |
| 10-12 17:37 | 80m | - / -13 | SP9KKA | -8 / - | 7 | ✓ Closing fragment |
| 10-12 17:11 | 40m | -6 / - | SP9KKA | - / -6 | 7 | ✓ Closing fragment |
| 10-11 21:27 | 80m | - / -9 | DL7PIA | -4 / - | 2 | ✓ Closing fragment |
| 10-11 21:24 | 80m | -16 / - | DL7PIA | - / - | 2 | Partial capture |
| 10-11 20:07 | 80m | - / -25 | R3KLE | -11 / - | 3 | ✓ Closing fragment |
| 10-11 20:03 | 80m | -14 / - | SQ8AZT | - / - | 3 | Partial capture |
| 10-11 05:43 | 40m | -15 / - | IN3IBW | +4 / 0 | 6 | ✓ Closing observed |
| 10-11 05:37 | 40m | -10 / - | 9H6C | - / -2 | 3 | Partial capture |
| 10-10 21:05 | 80m | -19 / -13 | DL7PIA | -3 / - | 2 | Partial capture |
| 10-10 20:28 | 80m | -22 / - | 9H6C | - / -8 | 2 | Partial capture |
| 10-10 20:11 | 80m | - / -7 | DM8ITZ | -3 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 181845 -2 1223 SV4YQ IW0HLZ -10 (x2) 193845 -13 1068 IU0JIW SV4YQ KM19 193900 -9 780 SV4YQ IU0JIW +04 (x2) 071145 -15 1967 IQ0PG SV4YQ KM19 (x7) 071500 -16 1854 SV4YQ IQ0PG RR73 071515 -16 1967 IQ0PG SV4YQ 73 071530 -14 1855 SV4YQ RR73; OS4K <...> -12
UTC dB Audio Message 173745 -5 1754 SV4YQ SP9KKA -13 (x6) 225230 -4 759 YU65AEC SV4YQ KM19 (x3) 225345 -5 1712 SV4YQ YU65AEC -15 225400 -2 759 YU65AEC SV4YQ R-14 175215 -9 2547 SV4YQ SV8JNR KM39 194600 -15 1383 SV4YQ IU0JIW -10 205230 -7 2478 SV4YQ IR0PG -03 (x2)
UTC dB Audio Message 061430 -7 232 SV4YQ IQ3TR -14 (x3) 183830 -11 783 IZ2WYA SV4YQ KM19 183845 -8 2835 SV4YQ IZ2WYA -02 183930 -10 783 IZ2WYA SV4YQ 73 161415 -15 1613 6W/IK2HKT SV4YQ +14 (x2) 161530 +0 1609 SV4YQ 9A4ZM JN86 161600 +3 1343 SV4YQ OM5CM JN98 161600 +1 1609 SV4YQ 9A4ZM JN86 193315 -9 1002 IR0PG SV4YQ KM19 193330 -4 603 SV4YQ IR0PG +10 193345 -8 1002 IR0PG SV4YQ R+05 193400 -6 603 SV4YQ RR73; DG3TF <...> +18
UTC dB Audio Message 093645 -11 849 <...> SV4YQ KM19 (x8) 122630 -10 971 EA1GAR SV4YQ KM19 (x3) 113430 -20 2007 <...> SV4YQ KM19 (x3) 101245 -1 2835 II1FAIR SV4YQ KM19
UTC dB Audio Message 004700 -24 1134 II7MGBR SV4YQ KM19 004815 +3 840 SV4YQ II7MGBR -07 004830 -19 998 <...> SV4YQ R-08 010900 -1 2104 SV4YQ II7MGBT +04 115300 -16 824 SV4YQ II7MGFG +08 123345 -22 2066 <...> SV4YQ KM19 123415 -24 2067 <IR7MGGC> SV4YQ KM19 124100 +0 1756 SV4YQ IR7MGGC -22 (x3) 125600 -5 2217 SV4YQ IU5HIU JN53 125600 -15 2074 SV4YQ IR7MGGC +01 093145 -24 2164 SV4YQ PA0ARR +04 (x2) 163430 -18 994 SV4YQ IZ2CDP -10
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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