OH4DSF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland Locator transmitted in a decoded message: KP41

Receiver-side FT8 activity involving OH4DSF, decoded by SO8OO in southeastern Poland. 178 related FT8 messages, 6 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 11 UTC dates. Heard between 2026-06-06 and 2026-07-29.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

178
Related messages
6
CQ messages
11
UTC dates heard
-6 dB
Mean decoder S/N

Bands

80m 20m 60m 40m 10m
First seen: 2026-06-06
Last seen: 2026-07-29 19:03 UTC

Frequent QSO partners observed at SO8OO

Stations OH4DSF worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by OH4DSF

Approximate centre of KP41, decoded 2026-06-28 22:39 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandOH4DSF S/NCounterpartCounterpart S/NMsgsCapture
07-29 21:03 20m - / -18 LU5EW -7 / - 2 ✓ Closing fragment
07-28 21:11 40m - / -9 YO9HP -7 / - 2 ✓ Closing fragment
07-28 21:10 40m - / +3 OZ3MC -6 / - 2 ✓ Closing fragment
07-28 20:55 40m - / -13 RA3WY -8 / - 4 ✓ Closing fragment
07-28 20:38 40m - / -12 SP9MOC -8 / - 2 Partial capture
07-28 20:35 40m - / - RA3WY -12 / - 4 Partial capture
07-26 21:10 20m - / -4 DL1R -7 / - 3 ✓ Closing fragment
07-25 20:38 60m -13 / -14 F5RAV -6 / - 2 ✓ Closing observed
07-25 20:35 60m -9 / -2 9A4ZM +7 / +4 6 ✓ Full exchange observed
07-25 20:34 60m -3 / -6 SP5JMA -9 / - 4 ✓ Closing observed
07-25 20:33 60m -8 / -1 DP6SEVEN -9 / -11 3 Partial capture
06-28 22:41 80m -3 / -2 OH2FQV +8 / - 4 ✓ Closing observed
06-28 22:40 80m -4 / -9 OK1HEH +5 / - 3 ✓ Closing observed
06-28 22:36 80m -8 / -24 EA1IOK -7 / - 4 ✓ Closing observed
06-28 22:35 80m -18 / -16 UA4FKT +13 / +4 5 ✓ Full exchange observed
06-28 22:32 80m -17 / - G0HSP - / - 5 Partial capture
06-28 22:16 40m - / - OO0O -9 / - 3 ✓ Closing fragment
06-28 21:20 20m - / -23 CT7BQA -13 / - 6 Partial capture
06-28 19:15 20m - / -13 TA2ANK -2 / - 2 ✓ Closing fragment
06-28 19:12 20m - / -12 IQ4JO +6 / - 3 ✓ Closing fragment
06-28 19:09 20m - / -13 OE3PBS 0 / - 2 ✓ Closing fragment
06-28 19:06 20m - / -20 IZ2DPX +4 / - 2 ✓ Closing fragment
06-28 18:25 20m - / - F5SFT -3 / - 4 ✓ Closing fragment
06-28 16:03 20m - / -3 IQ4JO +6 / - 3 Partial capture
06-28 16:01 20m - / - OK1DVN -9 / - 4 Partial capture
06-27 20:56 40m - / -6 5P1KZX -4 / - 2 ✓ Closing fragment
06-26 22:50 40m - / -21 ER1CW -18 / - 2 ✓ Closing fragment
06-26 22:47 40m - / -24 OE6TNO -10 / - 3 ✓ Closing fragment
06-26 22:32 40m - / -21 ER1CW -8 / - 3 Partial capture
06-26 22:29 40m - / -10 EW1D -13 / - 2 ✓ Closing fragment
06-26 22:25 40m - / - RA3WY -17 / - 4 Partial capture
06-26 22:24 40m - / -13 F5RRS -15 / - 3 ✓ Closing fragment
06-26 22:24 40m - / -9 DK7ZT -15 / - 5 ✓ Closing fragment
06-26 22:24 40m - / -10 DL7ACA -4 / - 8 Partial capture
06-26 19:08 40m - / -15 EU4BE -21 / - 2 ✓ Closing fragment
06-23 22:32 20m - / -2 2E0ROJ -7 / - 3 ✓ Closing fragment
06-23 22:22 20m - / - EA1IOK -8 / - 2 ✓ Closing fragment
06-23 20:50 80m -17 / -18 YO3OBB +12 / -2 8 ✓ Full exchange observed
06-23 20:47 80m - / -16 HA7TM +19 / - 4 ✓ Closing fragment
06-23 20:42 80m -14 / -22 GB1500M -6 / -13 2 Partial capture
06-23 20:37 80m - / - DO1MDO -2 / - 3 Partial capture
06-23 20:36 80m -11 / - DK7UY -8 / -13 2 Partial capture
06-23 20:36 80m -10 / - DL6UM -9 / -14 3 Partial capture
06-23 20:29 80m -8 / - OH5KNL +4 / - 3 ✓ Closing observed
06-23 18:47 40m - / - UT3GP -14 / - 2 Partial capture
06-23 18:36 40m - / -7 UA3QNA -8 / - 2 ✓ Closing fragment
06-23 18:36 40m - / -15 UT4VL -6 / - 3 Partial capture
06-23 00:06 20m - / -14 NP4TX -16 / - 2 Partial capture
06-22 23:42 20m - / -16 A71UN -17 / - 2 ✓ Closing fragment
06-22 23:10 20m - / -11 2E0GJH -10 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
191345  +6 2732  OH4DSF IQ4JO 73
191530  -3  594  OH4DSF TA2ANK -13
191600 -13 2177  OH4DSF IU5HIU JN53
191600  +0  594  OH4DSF TA2ANK RR73
212030 -11  782  OH4DSF CT7BQA -23 (x6)
211045  -4 2668  OH4DSF DL1R JN58 (x3)
210315  -7  485  OH4DSF LU5EW -18 (x2)
40m 
UTC    dB Audio  Message
203600 -10 1337  OH4DSF RA3WY KO81
203630  -8 2669  OH4DSF SP2ILQ 73
203630 -15 1337  OH4DSF RA3WY KO81 (x2)
203830 -13 2475  OH4DSF SP9MOC JO90 (x2)
205515  -9 1337  OH4DSF RA3WY KO81 (x2)
205615 -16 2033  OH4DSF 9A7BB JN75
205615  -9 1336  OH4DSF RA3WY R-13 (x2)
211030  -5 1467  OH4DSF OZ3MC +03 (x2)
211130  -6 1837  OH4DSF YO9HP -09 (x2)
60m 
UTC    dB Audio  Message
203345  -9  679  OH4DSF DP6SEVEN -01
203400  -7  679  DP6SEVEN OH4DSF R-11
203445 -11  880  OH4DSF SP5JMA KO02 (x2)
203530  -3  679  SP5JMA OH4DSF RR73
203545  -4 1084  OH4DSF F5RAV JN09
203545  -5  880  OH4DSF SP5JMA 73
203545  +7  676  OH4DSF 9A4ZM JN86 (x2)
203630 -11  680  9A4ZM OH4DSF +04
203645  +4  676  OH4DSF 9A4ZM R-02
203700  -7  679  9A4ZM OH4DSF RR73
203715  +5  676  OH4DSF 9A4ZM 73
203815  -6 1084  OH4DSF F5RAV R-14
203830 -13  679  F5RAV OH4DSF RR73
80m 
UTC    dB Audio  Message
223630  -7  435  OH4DSF EA1IOK IN62
223630 +12 1049  OH4DSF UA4FKT 73
223700  -7  435  OH4DSF EA1IOK R-24
223715  -8 1049  EA1IOK OH4DSF RR73
223730  -6  435  OH4DSF EA1IOK 73
223845  -4  820  CQ OH4DSF KP41 (x3)
224000  +5 1750  OH4DSF OK1HEH -09 (x2)
224045  -4  820  OK1HEH OH4DSF 73
224100  +6  760  OH4DSF OH2FQV KP20 (x2)
224145  -3  820  OH2FQV OH4DSF RR73
224200 +11  760  OH4DSF OH2FQV 73
10m 
UTC    dB Audio  Message
170545 +14 2385  OH4DSF UY5QJ RR73

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.