OH3EZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland Most frequent locator attributed to this token: KP11

Receiver-side FT8 activity involving OH3EZ, decoded by SO8OO in southeastern Poland. 51 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-21.

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 51 FT8 messages attributed to OH3EZ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (53%), followed by 80 m (22%) and 10 m (14%). Most decodes (92%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 11 40m · 6 20m · 27 10m · 7

First attributed message: 2026-06-06
Last attributed message: 2026-09-21 16:58 UTC

Observed FT8 message patterns

Attributed sample: 51 messages
Active dates: 6 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -20 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 25.

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 OH3EZ in decoded directed-looking exchanges:

PR2CC · Brazil OM2ZZ · Slovak Republic XU7O · Cambodia 9A3MRN · Croatia DL2HUC · Fed. Rep. of Germany DL2USR · Fed. Rep. of Germany UR1CCT · Ukraine LY2SA · Lithuania SQ9LOJ · Poland UR5EDX · Ukraine US7KC · Ukraine

Most frequent locator attributed to OH3EZ

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: KP11 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,288 km (approx.)
Last such locator decoded: 2026-09-21 16:58 UTC

Other locator fields attributed to this token: KP12 (12).

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 UTC	Band	OH3EZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 16:57	80m	-18 / -	DO1ID	- / -	2	Partial capture
09-21 16:55	80m	-14 / -13	US7KC	+16 / -	4	✓ Closing observed
09-21 16:53	80m	- / -6	SQ9LOJ	0 / -	2	✓ Closing fragment
09-21 14:08	40m	- / -8	DL2HUC	+2 / -	5	✓ Closing fragment
09-21 11:15	40m	- / -2	DL2USR	-7 / -	2	✓ Closing fragment
09-15 16:58	80m	- / 0	UR5EDX	+11 / -	4	✓ Closing fragment
09-15 16:56	80m	- / +8	LY2SA	+28 / -	2	✓ Closing fragment
09-15 16:49	80m	-18 / -	UT7AA	- / -	6	Partial capture
09-15 16:42	40m	-7 / -	UT7NI	- / -	3	Partial capture
09-15 16:38	40m	-14 / -	9A3MRN	+3 / -	2	✓ Closing observed
09-15 12:48	40m	- / -4	UR1CCT	+5 / -	3	✓ Closing fragment
09-15 12:46	40m	- / -17	EM70WWW	-10 / -	4	Partial capture
08-29 14:00	20m	- / -14	UA4FEN	+10 / -	3	Partial capture
08-21 16:37	20m	- / -2	XU7O	-11 / -	2	✓ Closing fragment
08-21 16:35	20m	- / -6	OM2ZZ	+25 / -	4	✓ Closing fragment
06-26 17:48	10m	-8 / -	PU2PGQ	- / -	2	Partial capture
06-26 17:46	10m	-9 / -	PY4ZDC	- / +1	3	Partial capture
06-26 17:44	10m	-8 / -	PR2CC	- / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
165630 +32 2764  OH3EZ LY2SA +08 (x2)
165830 +10 1992  OH3EZ UR5EDX KN78 (x4)
165330  -3 1704  OH3EZ SQ9LOJ -06 (x2)
165500 +20 1754  OH3EZ US7KC KO21 (x2)
165545 -14 2455  US7KC OH3EZ RR73
165600 +15 1754  OH3EZ US7KC 73
165715 -23 2384  DO1ID OH3EZ KP11 (x2)
165845 -17 2384  DO8JB OH3EZ KP11

40m

UTC    dB Audio  Message
163415 -10 2640  SK0HB OH3EZ KP11 (x2)
163815 -14  809  9A3MRN OH3EZ KP11
164000  +3 1913  OH3EZ 9A3MRN RR73
164245  -7 2655  UT7NI OH3EZ KP11 (x3)
111515 -10 1635  OH3EZ DL2USR -02 (x2)
112930  -6 2102  OH3EZ DL7DL +03
140845  -7 1931  OH3EZ DL2HUC JO51 (x5)

20m

UTC    dB Audio  Message
163430 -15 1078  OH3EZ BA3NZ -03
163500 +22 2839  OH3EZ OM2ZZ JN88 (x4)
163700  -9  483  OH3EZ XU7O -02 (x2)
140000  +6 2529  OH3EZ UA4FEN -14 (x3)

10m

UTC    dB Audio  Message
174415  -8 2714  PR2CC OH3EZ KP12 (x2)
174615  -8 2714  PY4ZDC OH3EZ KP12 (x3)
174845  -7 2704  PU2PGQ OH3EZ KP12 (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.

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