OH3NDH — 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 OH3NDH, decoded by SO8OO in southeastern Poland. 846 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-29.
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 846 FT8 messages attributed to OH3NDH as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (56%), followed by 40 m (36%) and 20 m (5%). Most decodes (86%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -3.9 dB.
Overview
Bands
Last attributed message: 2026-10-29 23:44 UTC
Observed FT8 message patterns
- Attributed sample
- 846 messages
- Active dates
- 34 UTC dates
- Estimated median S/N
- -3.9 dB
- Estimated 10th-90th percentile
- -19 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 181, moderate (-15 to -9 dB) 122, strong (≥ -8 dB) 543.
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 OH3NDH 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 OH3NDH
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
- KP20 · 493 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-10-29 23:44 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 | OH3NDH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-29 23:44 | 40m | -16 / - | TC8ATA | - / - | 2 | Partial capture |
| 10-29 23:39 | 40m | -12 / - | TJ1GD | - / - | 2 | Partial capture |
| 10-29 23:38 | 40m | -14 / - | VU2RPS | - / -12 | 3 | ✓ Closing fragment |
| 10-29 23:35 | 40m | -14 / - | D2UY | - / -20 | 4 | ✓ Closing fragment |
| 10-29 23:32 | 40m | - / +5 | 5B4AMX | -6 / - | 2 | ✓ Closing fragment |
| 10-27 23:57 | 40m | - / - | SV5BYP | -5 / - | 2 | ✓ Closing fragment |
| 10-27 23:39 | 40m | - / -4 | F6FHZ | -21 / - | 3 | Partial capture |
| 10-27 23:30 | 40m | - / +10 | SV5BYP | -8 / - | 3 | ✓ Closing fragment |
| 10-26 23:06 | 80m | -2 / - | S55X | - / - | 2 | Partial capture |
| 10-26 23:02 | 80m | +4 / -9 | TK/DH7SB | +4 / -9 | 5 | Partial capture |
| 10-26 23:01 | 80m | 0 / -7 | PE5TDM | +2 / +10 | 5 | ✓ Full exchange observed |
| 10-26 22:59 | 80m | +2 / - | DK8HC | -8 / -6 | 4 | ✓ Closing observed |
| 10-26 22:57 | 80m | -3 / -8 | SV3AUW | -16 / - | 3 | ✓ Closing observed |
| 10-26 22:54 | 80m | -6 / -2 | OK1AMF | +11 / - | 5 | ✓ Full exchange observed |
| 10-26 22:50 | 80m | -13 / - | OD5ZZ | - / - | 2 | ✓ Closing fragment |
| 10-26 22:49 | 80m | +4 / - | UA9JTJ/4 | - / - | 2 | Partial capture |
| 10-26 22:47 | 80m | +2 / - | SP5DFK/QRP | - / - | 3 | Partial capture |
| 10-26 08:46 | 40m | -14 / - | HB0PA | - / - | 8 | Partial capture |
| 10-26 08:35 | 40m | -18 / - | HB0PA | - / -5 | 14 | Partial capture |
| 10-26 08:30 | 40m | -14 / -19 | HB0PA | -8 / +5 | 4 | Partial capture |
| 10-13 11:56 | 10m | - / -11 | EA7L | -15 / - | 3 | ✓ Closing fragment |
| 10-13 11:54 | 10m | - / -2 | CR7CDR | -20 / - | 2 | ✓ Closing fragment |
| 10-11 22:41 | 40m | -22 / - | RZ4FWA | - / -18 | 2 | Partial capture |
| 10-11 22:37 | 40m | -23 / - | 9H6C | -24 / -17 | 2 | ✓ Closing observed |
| 10-06 08:50 | 40m | -16 / - | ON4UP/P | - / - | 2 | Partial capture |
| 10-06 08:49 | 40m | -16 / - | G7BTP | - / +2 | 2 | ✓ Closing fragment |
| 10-06 08:46 | 40m | -19 / - | DK5UR | - / -9 | 2 | Partial capture |
| 10-05 20:07 | 80m | +1 / - | SM6USU | -2 / - | 2 | ✓ Closing observed |
| 10-05 20:04 | 80m | - / - | DK8HC | -5 / - | 4 | Partial capture |
| 10-05 20:03 | 80m | -2 / -4 | AO5CV | +8 / -4 | 4 | ✓ Full exchange observed |
| 10-05 19:58 | 80m | +1 / - | OH1TEV | - / - | 6 | Partial capture |
| 10-05 19:55 | 80m | +1 / -4 | UN0GY | -12 / +5 | 5 | ✓ Full exchange observed |
| 10-05 19:53 | 80m | 0 / - | SM7XON | - / - | 4 | ✓ Closing fragment |
| 10-05 19:49 | 80m | +2 / - | OH1TEV | - / - | 3 | Partial capture |
| 10-05 19:45 | 80m | -5 / -7 | YL2JZ | +4 / - | 5 | ✓ Full exchange observed |
| 10-05 19:43 | 80m | -7 / - | OH8D | - / - | 5 | Partial capture |
| 09-22 21:23 | 40m | -5 / - | RI1FJZ | - / - | 46 | Partial capture |
| 09-20 08:03 | 40m | - / -22 | MI0AIH | -18 / - | 2 | Partial capture |
| 09-20 07:55 | 40m | -17 / - | DK3RV | -15 / - | 2 | ✓ Closing observed |
| 09-20 07:49 | 40m | -14 / - | R2FBW | - / - | 2 | Partial capture |
| 09-20 07:44 | 40m | - / -14 | GU0SUP | -5 / - | 5 | ✓ Closing fragment |
| 09-20 07:36 | 40m | - / -8 | SP7MAZ | +2 / - | 3 | ✓ Closing fragment |
| 09-20 07:34 | 40m | -8 / - | GU0SUP | - / - | 2 | Partial capture |
| 09-19 22:36 | 40m | -3 / - | IR0IADU | - / -1 | 2 | Partial capture |
| 09-19 22:27 | 40m | -2 / - | S79KW | - / - | 3 | Partial capture |
| 09-19 22:24 | 40m | +4 / - | 4K6SA | - / -9 | 2 | ✓ Closing fragment |
| 09-19 22:20 | 80m | +2 / +4 | SP3BZU | +6 / +6 | 4 | ✓ Full exchange observed |
| 09-19 22:18 | 80m | -2 / -17 | MW7GQB | -5 / -3 | 5 | ✓ Full exchange observed |
| 09-19 22:17 | 80m | -1 / - | UA9D | - / -19 | 2 | ✓ Closing fragment |
| 09-19 22:15 | 80m | +2 / -7 | T77RN | -10 / -14 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 233230 -3 2197 OH3NDH 5B4AMX +05 (x2) 233415 -11 1546 SV5/DF7XE OH3NDH KP20 233545 -12 1649 D2UY OH3NDH KP20 (x4) 233815 -14 1649 VU2RPS OH3NDH -12 (x3) 233945 -12 1649 TJ1GD OH3NDH KP20 (x2) 234245 -22 1650 VU2RPS OH3NDH RR73 234415 -17 1650 TC8ATA OH3NDH KP20 (x2)
UTC dB Audio Message 230045 +2 1712 DK8HC OH3NDH RR73 230100 +3 1712 OH3NDH PE5TDM JO32 230100 -8 2010 OH3NDH DK8HC 73 230115 -1 1712 PE5TDM OH3NDH +10 230130 -2 1712 OH3NDH PE5TDM R-07 230145 +0 1712 PE5TDM OH3NDH RR73 230200 +4 1712 OH3NDH PE5TDM 73 230245 +4 1712 <TK/DH7SB> OH3NDH KP20 (x3) 230400 +4 898 OH3NDH TK/DH7SB -09 230415 +4 1712 TK/DH7SB OH3NDH R-09 230615 -1 1712 S55X OH3NDH KP20 (x2) 230730 -14 1792 OH3NDH DO5HB JO40
UTC dB Audio Message 115445 -17 1742 OH3NDH CR7CDR -02 (x2) 115615 -14 2007 OH3NDH EA7L IM86 (x3)
UTC dB Audio Message 050815 -13 2502 CQ DX OH3NDH KP20 (x2) 051115 -4 669 OH3NDH XQ1KK RR73 051545 +6 2846 OH3NDH F4IIX IN95 051615 -17 1785 OH3NDH RK9UM NO35 (x2) 051645 -1 1324 OH3NDH F4JFC JN06 051715 -10 1785 OH3NDH TA2EE KM69 (x2) 051745 -2 1324 OH3NDH F4JFC JN06 053345 -12 1575 OH3NDH SK2TT JP94 (x5)
UTC dB Audio Message 182730 -10 1932 ER3UA OH3NDH KP20 (x2) 182815 +0 2137 OH3NDH ER3UA -06 182830 -9 1932 ER3UA OH3NDH R+00 182845 +1 2137 OH3NDH ER3UA RR73 182900 -10 1932 ER3UA OH3NDH 73 182915 -1 2137 OH3NDH ER3UA KN37 (x2) 182945 -5 1130 OH3NDH DK7UY JO44 183015 +1 2137 OH3NDH ER3UA KN37 183015 -2 1130 OH3NDH DK7UY JO44 184300 -9 1807 OH3NDH OJ0YL +00 184330 -10 1806 OH3NDH RR73; SP2Y <...> +06 184745 -16 1933 <...> OH3NDH KP20 184815 -16 1933 <DQ30GDXF> OH3NDH KP20
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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