OH8KFN — 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: KP24

Receiver-side FT8 activity involving OH8KFN, decoded by SO8OO in southeastern Poland. 204 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-10-20.

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 204 FT8 messages attributed to OH8KFN as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (30%) and 20 m (20%). The busiest six-hour window was 00:00-06:00 UTC, containing 49% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

204
Messages attributed
29
UTC dates decoded
57
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-18
Last attributed message: 2026-10-20 17:31 UTC

Observed FT8 message patterns

Attributed sample
204 messages
Active dates
29 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-17 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 70, strong (≥ -8 dB) 97.

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 OH8KFN

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
KP24 · 76 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,630 km (approx.)
Last such locator decoded
2026-10-20 17:30 UTC

Other locator fields attributed to this token: KP23 (31).

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 UTCBandOH8KFN S/NCounterpartCounterpart S/NMsgsCapture
10-21 03:40 40m - / -11 JY5IB -19 / - 3 ✓ Closing fragment
10-20 17:30 40m +2 / +1 DK3JW +6 / -10 4 ✓ Full exchange observed
10-20 17:25 40m -5 / -5 IN3EAR +11 / - 4 ✓ Closing observed
10-20 17:24 40m -6 / - SM6ONT - / -6 3 ✓ Closing fragment
10-20 17:22 40m -12 / - GM0SDV - / +9 2 ✓ Closing fragment
10-18 04:00 80m - / - R2AL +10 / - 4 Partial capture
10-18 04:00 80m - / -15 R2EA/P +1 / - 2 Partial capture
10-18 03:59 80m -8 / -8 SQ6ELK +6 / +2 4 ✓ Full exchange observed
10-18 03:56 80m -1 / +6 OH3DJP -8 / +7 5 ✓ Full exchange observed
10-17 05:07 80m -8 / - HA3IC - / - 2 Partial capture
10-17 04:36 80m -2 / - DO8JB - / - 3 Partial capture
10-16 22:39 40m - / -13 M0MLS -12 / - 2 Partial capture
10-16 22:16 40m - / -1 HA1BF +5 / - 2 ✓ Closing fragment
10-16 18:49 40m -14 / - M0MLS - / - 2 Partial capture
10-12 18:22 80m -8 / -1 DO5OT +12 / +3 5 ✓ Full exchange observed
10-12 03:07 80m - / - RA4Y -5 / - 2 Partial capture
10-12 03:06 80m - / -12 SP2GCJ 0 / - 2 ✓ Closing fragment
10-12 03:03 80m - / - UT2AU -12 / - 2 Partial capture
10-12 02:50 80m -18 / -9 T77RN +4 / - 5 ✓ Closing observed
10-10 05:01 40m -8 / - OA4ENG - / - 2 Partial capture
10-09 20:14 80m - / -11 SP3HUU +10 / - 2 Partial capture
10-09 20:11 80m -19 / -25 DO2ANW -7 / -2 5 Partial capture
10-09 20:06 80m -22 / -1 OH8WW -5 / - 5 ✓ Full exchange observed
10-03 03:14 40m -5 / - Z61DX - / - 2 Partial capture
10-03 03:05 40m +1 / +1 3Z4DX -6 / - 5 ✓ Full exchange observed
10-03 01:48 40m -15 / - HK3G - / - 6 Partial capture
10-03 01:45 40m -5 / - OA4ENG - / - 3 Partial capture
10-03 01:34 80m - / - UX7QV -1 / - 7 Partial capture
10-03 01:33 80m - / - R4HLO -11 / - 7 Partial capture
10-03 01:30 80m - / - US2YW +7 / - 3 Partial capture
10-03 01:29 80m - / - R6FX -9 / - 3 Partial capture
10-03 01:27 80m -10 / - V26K - / - 4 Partial capture
10-02 23:39 80m - / - UA4FKT +4 / - 4 Partial capture
10-02 23:37 80m -10 / - GM6URC - / +6 3 ✓ Closing fragment
09-29 21:05 80m -6 / - JE6WOQ - / - 4 Partial capture
09-27 20:34 80m - / - OZ1HPS -8 / - 3 Partial capture
09-27 20:26 80m -4 / - OH2BGD +8 / - 3 ✓ Full exchange observed
09-27 20:08 40m 0 / - 3B8FA - / - 7 Partial capture
09-27 19:25 40m -10 / - M9MRX - / - 2 Partial capture
09-27 19:23 40m - / -1 GU4WRP +2 / - 2 ✓ Closing fragment
09-27 01:51 80m -11 / -5 ON4MAP -7 / -9 4 ✓ Full exchange observed
09-27 01:45 80m -2 / - LA1HW -12 / -8 6 ✓ Closing observed
09-27 01:44 80m - / - UA4FKT +4 / - 2 Partial capture
09-27 01:43 80m -6 / -5 DD4U -3 / +3 4 ✓ Full exchange observed
09-26 05:18 40m - / -14 IW2ODG -8 / - 2 ✓ Closing fragment
09-22 18:15 40m - / -16 SM3ULU +4 / - 2 ✓ Closing fragment
09-22 18:13 40m -10 / -10 OZ9FF +6 / +8 4 ✓ Full exchange observed
09-21 18:44 80m -6 / -4 5P1KZX +6 / - 3 ✓ Closing observed
09-21 18:37 80m -6 / - SP5UAF/6 - / - 2 Partial capture
09-21 18:34 80m -6 / - DO2ANW - / -15 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
172300  -8 1242  GM0SDV OH8KFN 73
172415 -10 2815  SM6ONT OH8KFN KP24 (x3)
172530  +8  645  OH8KFN IN3EAR JN55 (x2)
172615  -5 2815  IN3EAR OH8KFN RR73
172630 +11 2679  OH8KFN IN3EAR 73
173030  +2 2760  DK3JW OH8KFN KP24
173045  +8 2760  OH8KFN DK3JW +01
173100  +1 2760  DK3JW OH8KFN R-10
173115  +4 2760  OH8KFN DK3JW RR73
034045 -20 1445  OH8KFN JY5IB -11 (x3)
80m
UTC    dB Audio  Message
035600  -6  478  OH8KFN OH3DJP +06 (x2)
035645  +0  477  OH3DJP OH8KFN R+07
035700 -10  478  OH8KFN OH3DJP RR73
035715  -2  477  OH3DJP OH8KFN 73
035915  +5 1829  OH8KFN SQ6ELK -08
035930  -8 1829  SQ6ELK OH8KFN R+02
035945  +7 1829  OH8KFN SQ6ELK RR73
040000  -7 1829  SQ6ELK OH8KFN 73
040015  +3 2515  OH8KFN R2EA/P -15
040015 +12  669  OH8KFN R2AL KO85
040045  -1 2515  OH8KFN R2EA/P -15
040045 +14  669  OH8KFN R2AL KO85 (x3)
20m
UTC    dB Audio  Message
072415  -8  675  PD1DRE OH8KFN 73
042300 -11  260  OH8KFN R6LKG LN07 (x3)
042915 -18 1412  OH8KFN HK3YL -17
043615 -15  904  TI5RR OH8KFN KP23
043645 -17  922  VE3PFW OH8KFN KP23 (x3)
025315 -13  995  OH8KFN XQ1KK -26 (x4)
152245  -3  761  RI1FJL OH8KFN KP23
152430 -15  480  OH8KFN RI1FJL RR73

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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