OH/DL4XT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland

Receiver-side FT8 activity involving OH/DL4XT, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-18 and 2026-09-20.

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 64 FT8 messages attributed to OH/DL4XT as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (67%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

64
Messages attributed
3
UTC dates decoded
20
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-09-18
Last attributed message: 2026-09-20 03:44 UTC

Observed FT8 message patterns

Attributed sample
64 messages
Active dates
3 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-19 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 18.

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 OH/DL4XT 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.

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 UTCBandOH/DL4XT S/NCounterpartCounterpart S/NMsgsCapture
09-20 11:00 40m - / - SP4OIK -6 / - 2 Partial capture
09-20 10:59 40m - / -8 PD0IFI -6 / - 3 Partial capture
09-20 10:14 40m - / -13 SP2GRP -6 / - 2 Partial capture
09-20 10:13 40m - / -25 YO2TKR -5 / - 5 Partial capture
09-20 10:06 40m - / - YO2TKR -8 / - 2 Partial capture
09-20 09:22 40m - / - SP2QVX -6 / - 2 Partial capture
09-20 07:09 40m - / -3 YT1DDL -10 / - 2 Partial capture
09-20 07:06 40m - / -20 UT5CO -3 / - 2 Partial capture
09-20 06:59 40m - / - SV2CXW -16 / - 2 Partial capture
09-20 06:42 40m - / -8 F1PBZ -7 / - 4 Partial capture
09-20 06:24 40m - / - SP4GDW -8 / - 2 Partial capture
09-20 06:23 40m - / -22 S59AT +4 / - 7 Partial capture
09-20 06:06 40m - / - DL1FAM +12 / - 11 Partial capture
09-20 05:38 40m - / - IW3QTG -2 / - 6 Partial capture
09-19 23:57 40m - / -3 N2GXJ -8 / - 2 Partial capture
09-19 23:40 40m - / - <...> -4 / - 3 ✓ Closing fragment
09-19 23:40 40m - / -23 EA3EDU -2 / - 3 Partial capture
09-19 23:16 40m - / -4 PE8HB -8 / - 7 Partial capture
09-19 23:10 40m - / - DL6RS +7 / - 7 Partial capture
09-19 23:10 40m - / -11 ON1JP -23 / - 2 Partial capture
09-19 23:06 40m -16 / - <...> - / - 2 Partial capture
09-19 22:35 40m - / -10 DF9DL -7 / - 3 Partial capture
09-19 22:18 40m - / - <...> -4 / - 3 ✓ Closing fragment
09-19 21:46 40m - / - DM5KN -10 / - 6 Partial capture
09-19 21:18 40m - / -3 ON1DGN -6 / - 3 Partial capture
09-19 20:51 40m - / -9 DL1HUH -6 / - 4 Partial capture
09-19 20:49 40m - / - IU3BRZ -9 / - 2 Partial capture
09-19 20:27 40m - / - <...> 0 / - 2 ✓ Closing fragment
09-19 20:23 40m - / - <...> +20 / - 2 ✓ Closing fragment
09-19 19:03 40m - / - DH0BRO 0 / - 2 Partial capture
09-19 18:57 40m - / - RZ5D -12 / - 2 Partial capture
09-19 18:55 40m - / -17 UC6D +10 / - 2 Partial capture
09-19 18:54 40m - / - RZ5D -16 / - 2 Partial capture
09-19 18:52 40m - / -15 UC6D +15 / - 2 Partial capture
09-19 18:36 40m - / - R4FJ -10 / - 2 Partial capture
09-19 18:33 40m -10 / -20 G8KHF -5 / -3 2 Partial capture
09-19 18:32 40m -19 / - DA1LEO - / -2 5 Partial capture
09-19 18:31 40m - / - DK6MR -8 / - 2 Partial capture
09-19 18:22 40m - / -8 DL8TV +2 / - 2 Partial capture
09-19 18:21 40m - / - S53AK -5 / - 5 Partial capture
09-19 18:20 40m -11 / - <...> +12 / - 4 ✓ Closing fragment
09-19 18:15 40m - / -13 M8FQT +4 / - 2 Partial capture
09-19 18:13 40m - / - DL8TV +6 / - 2 Partial capture
09-19 18:08 40m -7 / - <...> - / - 3 Partial capture
09-19 18:06 40m -6 / - DK6MR -12 / -21 4 Partial capture
09-19 18:04 40m - / - <...> -2 / - 2 ✓ Closing fragment
09-19 18:01 40m - / - DL8TV +2 / - 7 Partial capture
09-19 18:00 40m -8 / - <...> -2 / - 2 ✓ Closing fragment
09-19 17:55 40m -7 / - <...> -4 / - 3 ✓ Closing fragment
09-19 17:46 40m -14 / - <...> +11 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
100645  -3  929  OH/DL4XT YO2TKR KN05 (x6)
101445  -4 1886  OH/DL4XT SP2GRP JO94
101515  -6  929  OH/DL4XT YO2TKR R-25
101515  -7 1886  OH/DL4XT SP2GRP R-13
105900  -9  736  OH/DL4XT PD0IFI JO32 (x3)
110015  -7  890  OH/DL4XT SP4OIK KO03 (x2)
113400  +1  801  OH/DL4XT DL7UKM

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.

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