ON7SD — 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 ON7SD, decoded by SO8OO in southeastern Poland. 267 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-23.
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 267 FT8 messages attributed to ON7SD as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (31%) and 60 m (9%). Most decodes (90%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-23 01:07 UTC
Observed FT8 message patterns
- Attributed sample
- 267 messages
- Active dates
- 38 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -19 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 85, strong (≥ -8 dB) 131.
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 ON7SD 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 ON7SD
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
- JO10 · 190 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,335 km (approx.)
- Last such locator decoded
- 2026-10-23 01:03 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 | ON7SD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 01:04 | 60m | -16 / -16 | LZ2VQ | +3 / -21 | 8 | ✓ Full exchange observed |
| 10-23 01:02 | 60m | -17 / -12 | EA8AE | -15 / -7 | 6 | ✓ Full exchange observed |
| 10-23 00:56 | 60m | -18 / -19 | EP2AES | -7 / -11 | 6 | ✓ Full exchange observed |
| 10-22 18:26 | 60m | - / -24 | YL2NX | +7 / - | 4 | ✓ Closing fragment |
| 10-22 18:25 | 60m | -21 / - | EA6ET | - / - | 2 | Partial capture |
| 10-22 00:54 | 40m | - / - | R6FX | -14 / - | 3 | Partial capture |
| 10-22 00:54 | 40m | - / - | EP2AES | -16 / - | 2 | ✓ Closing fragment |
| 10-22 00:29 | 80m | -8 / -4 | DK8HC | +1 / - | 6 | ✓ Full exchange observed |
| 10-22 00:27 | 80m | +10 / - | UN3P | -12 / -2 | 5 | ✓ Closing observed |
| 10-21 01:13 | 80m | -7 / - | AP2HA | - / - | 5 | Partial capture |
| 10-20 18:42 | 40m | -13 / -10 | EX7CQ | +2 / +1 | 4 | ✓ Full exchange observed |
| 10-20 18:35 | 60m | - / - | DJ0MAB | -10 / - | 2 | Partial capture |
| 10-20 18:33 | 60m | -22 / -5 | LA7HJA | -2 / +4 | 5 | ✓ Full exchange observed |
| 10-19 00:10 | 40m | -9 / - | CX1UI | - / - | 3 | Partial capture |
| 10-18 00:12 | 40m | - / -17 | A61DD | -12 / - | 2 | Partial capture |
| 10-18 00:06 | 80m | -11 / - | ON8FAB | +10 / - | 5 | ✓ Closing observed |
| 10-18 00:04 | 80m | -6 / - | DK8HC | +4 / +1 | 7 | Partial capture |
| 10-17 00:02 | 60m | - / - | LZ2VQ | +2 / - | 3 | Partial capture |
| 10-17 00:01 | 60m | - / -9 | GI5RPG | +12 / - | 2 | ✓ Closing fragment |
| 10-16 23:52 | 60m | - / - | LZ2VQ | +5 / - | 3 | Partial capture |
| 10-16 00:21 | 40m | +5 / - | RK0SC | - / -9 | 3 | ✓ Closing fragment |
| 10-15 23:45 | 80m | -9 / - | LZ936BA | - / - | 2 | Partial capture |
| 10-15 23:38 | 60m | -24 / -12 | OZ7FOC | -16 / - | 3 | ✓ Closing observed |
| 10-15 01:08 | 40m | - / - | RN6HK | +9 / - | 4 | Partial capture |
| 10-15 01:07 | 40m | - / - | EP2AES | -16 / - | 2 | ✓ Closing fragment |
| 10-02 03:11 | 40m | +1 / - | RN2F | - / -1 | 2 | ✓ Closing fragment |
| 10-02 03:09 | 40m | +4 / - | K6ISS | - / - | 2 | Partial capture |
| 09-23 03:57 | 40m | -4 / - | HC2GRC | - / - | 4 | Partial capture |
| 09-23 03:55 | 40m | -6 / - | WP4TUN | - / - | 2 | Partial capture |
| 09-23 03:46 | 60m | -19 / -25 | SM6LJP | 0 / - | 5 | ✓ Closing observed |
| 09-22 18:27 | 60m | - / -7 | SQ9LOJ | -3 / - | 2 | ✓ Closing fragment |
| 09-22 18:23 | 60m | - / - | SQ9LOJ | -3 / - | 3 | Partial capture |
| 09-22 18:21 | 60m | - / -22 | ES2IPA | -5 / - | 2 | ✓ Closing fragment |
| 09-22 03:07 | 40m | +13 / -14 | KB2ELA | -9 / -4 | 2 | Partial capture |
| 09-22 03:04 | 40m | +9 / - | KN6TBF | - / - | 5 | Partial capture |
| 09-19 23:52 | 40m | 0 / -24 | PT7YB | -22 / - | 3 | ✓ Closing observed |
| 09-19 23:45 | 40m | +3 / - | TJ1GD | - / -16 | 8 | ✓ Closing fragment |
| 09-19 23:39 | 40m | +5 / - | FS4WBS | - / - | 3 | Partial capture |
| 09-19 23:36 | 40m | -4 / - | FS4WBS | - / - | 2 | Partial capture |
| 09-18 23:50 | 40m | +2 / - | PP5GP | - / - | 2 | Partial capture |
| 09-18 23:45 | 40m | +3 / - | V47YA | - / - | 9 | Partial capture |
| 09-18 23:40 | 40m | -14 / - | PR2NA | - / - | 2 | Partial capture |
| 09-17 01:57 | 80m | 0 / - | V26OC | - / - | 5 | Partial capture |
| 09-17 01:46 | 80m | -8 / - | V26OC | - / - | 9 | Partial capture |
| 09-16 01:55 | 40m | -10 / - | PS7RW | - / - | 3 | ✓ Closing fragment |
| 09-16 01:51 | 40m | -10 / - | TN8GD | - / - | 4 | Partial capture |
| 09-16 01:45 | 40m | -13 / - | PR7AD | - / - | 3 | Partial capture |
| 09-16 01:42 | 40m | -5 / - | TI3JKS | - / - | 2 | Partial capture |
| 09-16 01:39 | 40m | -9 / - | TI3JKS | - / - | 2 | Partial capture |
| 09-16 01:33 | 40m | -8 / - | YY4JLG | - / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 005845 -16 1799 EP2AES ON7SD 73 010245 -12 1799 EA8AE ON7SD JO10 010300 -16 1309 ON7SD EA8AE -12 010315 -18 1799 EA8AE ON7SD JO10 010330 -12 1309 ON7SD EA8AE -12 010345 -22 1799 EA8AE ON7SD R-07 010400 -18 1309 ON7SD EA8AE RR73 010430 -1 2653 ON7SD LZ2VQ KN23 (x3) 010645 -15 1799 LZ2VQ ON7SD -21 (x2) 010730 +2 2652 ON7SD LZ2VQ R-16 (x3)
UTC dB Audio Message 001215 -9 974 ON7SD A61DD -17 (x2) 001045 -11 1595 CX1UI ON7SD JO10 (x3) 002800 -6 1595 YV6BXN ON7SD JO10 184200 +1 497 ON7SD EX7CQ -10 184215 -14 1870 EX7CQ ON7SD R+01 184230 +2 497 ON7SD EX7CQ RR73 184245 -12 1870 EX7CQ ON7SD 73 005400 -17 2361 ON7SD EP2AES RR73 005430 -9 2146 ON7SD R6FX LN14 005430 -15 2361 ON7SD EP2AES 73 005500 -17 2146 ON7SD R6FX LN14 (x2)
UTC dB Audio Message 011345 -9 1531 AP2HA ON7SD JO10 (x4) 002715 +9 1813 UN3P ON7SD R-02 (x2) 002800 -12 1774 ON7SD UN3P RR73 002815 +13 1813 UN3P ON7SD R-02 002830 -12 1773 ON7SD UN3P RR73 002930 +5 564 ON7SD DK8HC JO42 (x2) 003015 -8 1813 DK8HC ON7SD +11 003030 -6 564 ON7SD DK8HC R-04 003045 -8 1812 DK8HC ON7SD RR73 003100 -2 565 ON7SD DK8HC 73
UTC dB Audio Message 101900 -15 2145 MM0VIK ON7SD JO10 (x4) 235445 -9 1794 9K2MP ON7SD JO10 (x5) 053615 -18 2727 ON7SD VK3HA -14 053630 -14 2321 VK3HA ON7SD R-16 053645 -14 2727 ON7SD VK3HA RR73
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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