YO9ADN — 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 YO9ADN, decoded by SO8OO in southeastern Poland. 891 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-06.
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 891 FT8 messages attributed to YO9ADN as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (76%), followed by 20 m (16%) and 80 m (8%). Most decodes (78%) fell within the six-hour window 16:00-22:00 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: 2026-11-06 07:44 UTC
Observed FT8 message patterns
- Attributed sample
- 891 messages
- Active dates
- 44 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -21.8 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 228, moderate (-15 to -9 dB) 231, strong (≥ -8 dB) 432.
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 YO9ADN 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 YO9ADN
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
- KN35 · 414 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 628 km (approx.)
- Last such locator decoded
- 2026-10-05 06:30 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 | YO9ADN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-07 09:49 | 10m | - / +5 | EA3FHP | -4 / - | 2 | ✓ Closing fragment |
| 10-05 06:30 | 40m | -23 / - | HG5OGI | -4 / +5 | 4 | ✓ Closing observed |
| 09-27 17:08 | 40m | -23 / - | RM6OG | - / -5 | 3 | Partial capture |
| 09-18 19:08 | 40m | -11 / - | YT2U | - / - | 2 | ✓ Closing fragment |
| 09-18 18:56 | 40m | -9 / -15 | 9H4JX | -10 / -3 | 7 | ✓ Full exchange observed |
| 09-18 18:48 | 40m | -12 / -6 | 4L6EZ | -4 / +4 | 7 | ✓ Full exchange observed |
| 09-18 18:35 | 40m | -12 / +9 | OE8PIT | -8 / - | 4 | ✓ Closing observed |
| 09-18 18:31 | 40m | -10 / - | DG3DAF | - / -9 | 2 | Partial capture |
| 09-18 18:29 | 40m | -13 / - | RV3GZ | - / -7 | 3 | Partial capture |
| 09-18 18:24 | 40m | - / -13 | DF3IS | +1 / - | 3 | ✓ Closing fragment |
| 09-18 08:16 | 40m | -8 / - | IQ0AAI | - / -3 | 5 | ✓ Closing fragment |
| 09-14 20:31 | 40m | - / -12 | EA8UP | +1 / - | 2 | ✓ Closing fragment |
| 09-14 20:24 | 40m | - / - | 2E0JPO | -22 / - | 2 | ✓ Closing fragment |
| 09-14 20:21 | 40m | - / -9 | DL5EBS | -4 / - | 3 | ✓ Closing fragment |
| 09-14 20:19 | 40m | - / -10 | G7NUT | -9 / - | 3 | ✓ Closing fragment |
| 09-14 20:17 | 40m | - / +6 | SP6EFY | +2 / - | 3 | ✓ Closing fragment |
| 09-14 20:11 | 40m | - / - | DL1UDO | +4 / - | 4 | Partial capture |
| 09-14 20:09 | 40m | - / -12 | DL9KM | 0 / - | 3 | ✓ Closing fragment |
| 09-12 18:29 | 40m | - / -14 | ON1DGN | -4 / - | 2 | Partial capture |
| 09-12 18:25 | 40m | -8 / - | RD3AD | - / -9 | 2 | Partial capture |
| 09-12 18:21 | 40m | -5 / - | IU5VLR | - / -12 | 3 | Partial capture |
| 09-12 18:20 | 40m | -6 / - | RK4FF | -5 / -3 | 3 | ✓ Closing observed |
| 09-12 18:17 | 40m | -5 / - | HF7X | - / -14 | 3 | Partial capture |
| 09-12 18:15 | 40m | 0 / +1 | RN6MA | -7 / -1 | 2 | Partial capture |
| 09-12 18:13 | 40m | -3 / +3 | DH0GBC | -1 / -8 | 7 | ✓ Full exchange observed |
| 09-12 17:53 | 40m | - / - | EA3HLM | -22 / - | 3 | Partial capture |
| 09-12 17:52 | 40m | - / - | UB6OCP | -8 / - | 2 | Partial capture |
| 09-12 17:49 | 40m | -8 / -17 | R6OAQ | -10 / -9 | 4 | ✓ Full exchange observed |
| 09-12 17:45 | 40m | -5 / -5 | DK5DW | -3 / -15 | 5 | ✓ Full exchange observed |
| 09-12 17:45 | 40m | -5 / -10 | ON1DGN | -16 / -19 | 6 | Partial capture |
| 09-12 17:42 | 40m | 0 / -16 | RY3F | -2 / -9 | 3 | ✓ Full exchange observed |
| 09-12 17:41 | 40m | -12 / - | RA6ZD | -11 / -6 | 3 | ✓ Closing observed |
| 09-12 17:38 | 40m | -10 / - | YO2MTG | - / +2 | 3 | Partial capture |
| 09-12 17:37 | 40m | -10 / +1 | SP6LHT | -7 / -5 | 4 | ✓ Full exchange observed |
| 09-12 17:29 | 40m | - / - | RA6OY | +5 / - | 3 | ✓ Closing fragment |
| 09-12 17:29 | 40m | - / -3 | OE6TNO | -9 / - | 3 | ✓ Closing fragment |
| 09-12 07:02 | 40m | -12 / -15 | RU3QR | -8 / +9 | 3 | ✓ Full exchange observed |
| 09-12 07:00 | 40m | -15 / -7 | DL8WEM | -1 / +10 | 5 | ✓ Full exchange observed |
| 09-12 06:59 | 40m | -6 / - | SQ8SP | -6 / - | 3 | ✓ Closing observed |
| 09-12 06:56 | 40m | - / - | F4BYA | -2 / - | 4 | Partial capture |
| 09-12 06:54 | 40m | -8 / -3 | UR5VPR | -10 / - | 5 | ✓ Full exchange observed |
| 09-12 06:53 | 40m | -11 / -10 | IQ4JO | -12 / - | 2 | Partial capture |
| 09-12 06:47 | 40m | -10 / - | OE4BHF | - / - | 2 | Partial capture |
| 09-11 18:42 | 40m | - / - | F6BEC | +2 / - | 2 | Partial capture |
| 09-11 18:36 | 40m | 0 / - | ON4AZM | -11 / -8 | 10 | Partial capture |
| 09-11 18:27 | 80m | -4 / - | RK6OQ | - / +7 | 3 | Partial capture |
| 09-11 18:25 | 80m | -10 / -7 | YO9HP | +10 / - | 2 | Partial capture |
| 09-11 18:24 | 80m | -10 / -9 | R2EN | +6 / - | 4 | ✓ Full exchange observed |
| 09-11 18:23 | 80m | -3 / -8 | HA7TM | +14 / +10 | 4 | ✓ Full exchange observed |
| 09-11 18:10 | 40m | - / - | YO4GOU | -2 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 120445 -22 1741 YO9ADN MI5JYK -05 074445 -22 1600 VK6AAX YO9ADN -14 094615 +0 700 YO9ADN EA3FHP JN11 (x3)
UTC dB Audio Message 185815 -9 2033 9H4JX YO9ADN RRR 185830 -9 1827 YO9ADN 9H4JX RR73 190615 -14 1536 CQ YO9ADN KN35 (x3) 190845 -17 1535 YT2U YO9ADN R+24 (x2) 191000 -8 2028 YO9ADN R3DHP R-15 170815 -23 1633 RM6OG YO9ADN -05 (x3) 063015 -24 1968 HG5OGI YO9ADN KN35 (x2) 063100 -4 969 YO9ADN HG5OGI RR73 063115 -20 1968 HG5OGI YO9ADN 73
UTC dB Audio Message 182315 +13 1581 YO9ADN HA7TM JN97 182330 -3 1581 HA7TM YO9ADN +10 182345 +16 1581 YO9ADN HA7TM R-08 (x2) 182430 -8 1581 CQ YO9ADN KN35 182445 +7 2433 YO9ADN R2EN -09 182500 -8 1581 R2EN YO9ADN R+12 182515 +5 2433 YO9ADN R2EN RR73 182530 -13 1581 R2EN YO9ADN 73 182545 +10 855 YO9ADN YO9HP -07 182600 -10 1581 YO9HP YO9ADN R+13 182615 +4 855 YO9ADN RR73; US7UK <...> -02 182700 -7 1581 RK6OQ YO9ADN +07 (x3)
UTC dB Audio Message 193645 -5 1785 YO9ADN EA1CQ R-11 (x2) 193815 -10 1786 YO9ADN EA3CFV JN11 (x3) 193945 -17 1768 YO9ADN VE3NVK FN25 194045 -3 1785 YO9ADN M8FQT IO93 (x3) 194515 -7 935 YO9ADN G8RZ IO84 195715 +14 378 YO9ADN OO0O R+09 (x5)
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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