OK1DVN — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN79

Receiver-side FT8 activity involving OK1DVN, decoded by SO8OO in southeastern Poland. 853 FT8 messages attributed to this token as transmitter, on 160m, 40m, 20m, 10m, across 41 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-11-05.

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 OK1DVN as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (53%), followed by 20 m (46%) and 10 m (0%). Most decodes (60%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

853
Messages attributed
41
UTC dates decoded
142
Active 15-min windows
-12 dB
Estimated median S/N

Bands

160m · 454 40m · 1 20m · 395 10m · 3
First attributed message: 2026-06-12
Last attributed message: 2026-11-05 17:01 UTC

Observed FT8 message patterns

Attributed sample
853 messages
Active dates
41 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-21 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 279, moderate (-15 to -9 dB) 326, strong (≥ -8 dB) 248.

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 OK1DVN 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 OK1DVN

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
JN79 · 642 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
491 km (approx.)
Last such locator decoded
2026-11-05 17:01 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 UTCBandOK1DVN S/NCounterpartCounterpart S/NMsgsCapture
11-05 16:58 160m -12 / - R6KA - / - 4 Partial capture
11-04 02:58 160m -11 / - R6AA - / - 3 Partial capture
11-04 02:57 160m -8 / - RK3AW/P - / - 2 Partial capture
11-03 17:56 160m -15 / - R2EC - / - 6 Partial capture
11-03 17:51 160m -21 / -11 SP9VRY 0 / -1 4 ✓ Full exchange observed
11-03 17:39 160m -19 / - RU6CH - / - 2 Partial capture
11-03 17:00 160m -19 / - UI6A - / - 3 Partial capture
11-03 16:59 160m - / -18 YO8RAW -19 / - 4 Partial capture
11-03 16:56 160m -16 / - RA1TL - / - 2 Partial capture
11-02 18:36 160m -16 / - RU4CK/P - / - 2 Partial capture
11-02 18:32 160m -4 / - F9IE - / - 2 Partial capture
11-02 18:30 160m -9 / - OZ6FH - / - 2 Partial capture
11-02 18:24 160m -20 / - RA3SI - / - 2 Partial capture
11-02 18:20 160m -12 / -23 OH2FT +2 / -13 8 ✓ Full exchange observed
11-02 18:18 160m -3 / -22 SM5ACQ -12 / - 6 Partial capture
11-02 18:16 160m -6 / - RU4CK/P - / - 2 Partial capture
11-02 18:15 160m -4 / - OH2FT - / - 2 Partial capture
11-02 18:10 160m -15 / -11 SP5IDR +2 / -13 4 ✓ Full exchange observed
11-02 18:06 160m -10 / - UA3ZUX -22 / -5 5 Partial capture
11-02 18:05 160m -12 / -9 SP6IHE +8 / -14 6 ✓ Full exchange observed
11-02 18:04 160m -6 / - SP3BPU - / - 2 Partial capture
11-02 17:56 160m -8 / - IZ0COC - / - 6 Partial capture
11-02 17:48 160m -8 / -16 OH5KNL +4 / +5 11 ✓ Full exchange observed
11-02 17:46 160m -12 / - SV2GJV - / - 3 Partial capture
11-02 17:40 160m -8 / - IT9AUG - / - 8 Partial capture
11-02 17:34 160m -4 / - RW6MZ - / - 3 Partial capture
11-02 17:32 160m -9 / -19 IW4AOT -6 / -8 5 ✓ Full exchange observed
11-02 17:31 160m -9 / - R2EA - / - 2 Partial capture
11-02 17:29 160m -8 / - SQ7BFC - / - 3 Partial capture
11-02 17:26 160m -11 / - RA3SI - / - 2 Partial capture
11-02 17:25 160m -13 / - OE2GEN - / - 2 Partial capture
11-02 17:23 160m -14 / - OZ6FH - / 0 2 Partial capture
11-02 17:17 160m -12 / -15 OZ6FH -4 / - 3 Partial capture
11-02 17:16 160m -6 / - DF3IS - / - 2 Partial capture
11-02 17:13 160m -2 / -15 YO9HP -7 / +4 6 ✓ Full exchange observed
11-02 17:10 160m -11 / - R5DT - / - 2 Partial capture
11-02 17:05 160m -6 / - UZ1WW - / - 2 Partial capture
11-02 17:04 160m -6 / +1 SQ3F +10 / -8 6 ✓ Full exchange observed
11-02 17:02 160m -12 / - R2EC - / - 3 Partial capture
11-02 16:59 160m -11 / - SP5IDR - / - 3 Partial capture
11-01 17:31 40m - / -2 OZ1LHK -12 / - 5 ✓ Closing fragment
11-01 04:45 160m - / -13 MD0CCE -4 / - 2 ✓ Closing fragment
11-01 04:34 160m -2 / - IT9DSZ - / - 2 Partial capture
11-01 04:32 160m -11 / -2 HB9FLU -2 / +6 5 ✓ Full exchange observed
11-01 04:30 160m -10 / -21 LY3BRA 0 / -3 5 ✓ Full exchange observed
11-01 04:27 160m -11 / - HB9FLU - / - 4 Partial capture
11-01 04:24 160m - / -13 SV2BWY -3 / - 3 ✓ Closing fragment
11-01 04:22 160m -6 / - UX7QV - / - 3 Partial capture
10-31 17:44 40m - / -13 YL2KF -12 / - 3 Partial capture
10-31 17:32 160m -20 / -12 DL9KM -20 / - 2 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

160m 
UTC    dB Audio  Message
175800 -13 1239  R2EC OK1DVN JN79 (x3)
025745  -9 1369  RK3AW/P OK1DVN JN79 (x2)
025845  -9 1369  R6AA OK1DVN JN79 (x3)
183300 -19 1122  SM7GIB OK1DVN JN79
184045 -15 1121  EW6CY OK1DVN JN79
165830 -15 1292  R6KA OK1DVN JN79 (x4)
170145  -8 1293  IZ3VCN OK1DVN JN79
40m 
UTC    dB Audio  Message
032000 -10 1741  OK1DVN EI9KF -24 (x2)
174400 -10 1026  OK1DVN YL2KF -13 (x3)
173115 -12 1892  OK1DVN OZ1LHK -02 (x5)
024945 -24 1701  KD2TDA OK1DVN JN79
10m 
UTC    dB Audio  Message
185145 -22 1776  OK1DVN 7X/EA1FMJ -14
091500 -24 1569  OK1DVN RT8T -18 (x2)
110700 -13 1931  OK1DVN RU4B -10 (x2)
20m 
UTC    dB Audio  Message
033700 -11  957  OK1DVN RA4CEH -16 (x2)
174000  +2  981  OK1DVN 7Z1IP LL45
020015 -19 1895  OK1DVN LU3GHF -13
020515  -7  879  OK1DVN XQ3MCC -23 (x3)
205815 -11 1504  K2TQC OK1DVN JN79
052745 -11 1395  OK1DVN VK3YW -18 (x2)
060200 -24 1478  VK3EVE OK1DVN JN79 (x3)
060130  -7 1887  OK1DVN RV3TR -10 (x2)

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.

Explore CW reception at SO8OO

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