OH4BW — 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: Finland Most frequent locator attributed to this token: KP32

Receiver-side FT8 activity involving OH4BW, decoded by SO8OO in southeastern Poland. 236 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 26 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-10-25.

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 236 FT8 messages attributed to OH4BW as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (87%), followed by 40 m (12%) and 20 m (1%). Most decodes (96%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +2.8 dB.

Overview

236
Messages attributed
26
UTC dates decoded
62
Active 15-min windows
+2.8 dB
Estimated median S/N

Bands

First attributed message: 2026-08-29
Last attributed message: 2026-10-25 21:01 UTC

Observed FT8 message patterns

Attributed sample
236 messages
Active dates
26 UTC dates
Estimated median S/N
+2.8 dB
Estimated 10th-90th percentile
-10 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 206.

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.

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 OH4BW

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
KP32 · 186 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,432 km (approx.)
Last such locator decoded
2026-10-25 21:01 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 UTCBandOH4BW S/NCounterpartCounterpart S/NMsgsCapture
10-22 19:44 40m - / - EA1EA -19 / - 2 Partial capture
10-17 21:03 80m +7 / - R2BQM - / -20 2 ✓ Closing fragment
10-17 21:02 80m - / - DK8HC +4 / - 2 Partial capture
10-17 21:01 80m +8 / - OH5YZ -8 / -11 4 ✓ Full exchange observed
10-10 17:29 80m 0 / - 4Z5AV - / - 2 Partial capture
10-06 20:00 80m +7 / - VK3BDX - / - 2 Partial capture
10-04 18:50 80m +8 / - UN0GY - / - 2 Partial capture
09-29 19:34 80m +2 / - V51WH - / - 6 Partial capture
09-29 13:52 40m -5 / - DS2PZF - / - 2 Partial capture
09-28 17:29 40m +3 / - BD8FOD - / -24 3 ✓ Closing fragment
09-28 17:27 40m +6 / - DS5USH - / -16 3 Partial capture
09-28 17:00 80m -1 / - ZS6BUN - / - 3 Partial capture
09-28 16:58 80m +14 / -18 LZ2VQ +6 / - 4 ✓ Closing observed
09-28 16:56 80m - / - UA4FKT +12 / - 2 Partial capture
09-28 16:54 80m +16 / -4 M0WID 0 / 0 6 ✓ Full exchange observed
09-28 16:51 80m +7 / - R1AV -5 / - 5 ✓ Full exchange observed
09-28 16:47 80m +2 / - OH1TSM -2 / - 6 ✓ Closing observed
09-28 16:45 80m +7 / - BH3AGU - / - 2 Partial capture
09-23 18:04 80m - / - OH4UI +3 / - 2 Partial capture
09-22 16:28 80m +13 / - VK4MA - / - 3 Partial capture
09-22 16:02 80m 0 / - YB6DE - / - 2 Partial capture
09-22 15:16 80m -10 / - 7K4DHB - / - 2 Partial capture
09-21 17:21 80m +14 / - JK1EXO - / - 2 Partial capture
09-20 17:06 80m +7 / - VK3BDL - / - 3 Partial capture
09-20 16:27 80m +4 / - WJ3DWL - / - 2 Partial capture
09-19 19:53 80m +4 / -16 JG1EZF -15 / -16 6 Partial capture
09-19 19:06 80m +6 / - V51WH - / - 2 Partial capture
09-19 18:49 80m +8 / - V51WH - / - 2 Partial capture
09-19 15:35 80m -5 / - YB7IBR - / - 5 ✓ Closing fragment
09-17 16:58 80m +3 / - UN7CL - / -6 3 ✓ Closing fragment
09-17 16:56 80m +2 / - RA0SCA - / - 2 Partial capture
09-17 16:43 80m +2 / - VK1MA - / - 3 Partial capture
09-17 16:42 80m 0 / - BI4IWL - / - 2 Partial capture
09-17 16:40 80m +2 / - JA5XAE - / - 2 Partial capture
09-15 15:59 80m -11 / - YE4FNN - / - 6 Partial capture
09-10 16:01 80m -8 / - TJ1GD - / - 2 Partial capture
09-09 19:58 80m +12 / -2 EA8UP -18 / -4 4 ✓ Full exchange observed
09-08 20:07 80m +12 / +9 UA4FKT -12 / -24 8 Partial capture
09-08 20:04 80m +12 / - CT2GQA - / - 2 Partial capture
09-08 19:59 80m +14 / -9 EA1KCN -12 / -24 6 ✓ Full exchange observed
09-08 19:57 80m +11 / - JA0MVW - / - 2 Partial capture
09-08 19:50 80m +10 / - 5Z4VJ - / - 4 Partial capture
09-06 20:32 80m +10 / - W8BLA - / - 4 Partial capture
09-06 19:11 80m +7 / - JF2SQB - / - 3 Partial capture
09-06 19:07 80m +6 / - JR4BCD - / - 2 Partial capture
09-06 19:06 80m +4 / - JF2SQB - / - 3 Partial capture
09-06 19:05 80m +5 / -11 US2YW +13 / - 4 ✓ Closing observed
09-06 19:04 80m +2 / -6 RA3RDN -3 / -1 4 ✓ Full exchange observed
09-06 19:01 80m +12 / 0 DK7ZT +3 / - 6 ✓ Closing observed
09-06 18:58 80m +13 / - V51WH - / -24 6 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
200045  +8 3004  VK3BDX OH4BW KP32 (x3)
172915  +0 2204  4Z5AV OH4BW KP32 (x2)
194515 +16 2543  D2UY OH4BW KP32
210100  -8 2274  OH4BW OH5YZ +15
210145  +6 2210  OH5YZ OH4BW R-11
210200  -7 2275  OH4BW OH5YZ RR73
210215 +10 2210  OH5YZ OH4BW 73
210230  -2  565  OH4BW DK8HC JO42
210345  +4 2209  R2BQM OH4BW R-20 (x2)
210430  +9  565  OH4BW DK8HC JO42
210130 +15 2043  BH3FZG OH4BW KP32
40m
UTC    dB Audio  Message
202430  -1  805  F5PBG OH4BW RR73
202445  -8 1037  OH4BW F5PBG 73
202845  -6 1866  JF0CSK OH4BW KP32
172700  +8 1045  DS5USH OH4BW KP32 (x3)
172930  +5 1045  BD8FOD OH4BW -24 (x3)
135145  -7 2562  BG7BVP OH4BW KP32
135215  -5  750  DS2PZF OH4BW KP32 (x2)
194230  -2  540  OH4BW F6FHZ JN18
194430 -21 2134  OH4BW EA1EA IN83 (x2)
20m
UTC    dB Audio  Message
181500 +12 1088  OH4BW EB3JT R-12 (x8)
204430  +2  577  OH4BW EA1IOK IN62 (x5)
205100 -16 1413  PY4STO OH4BW KP32 (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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