OH3OCM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland Most frequent locator attributed to this token: KP20

Receiver-side FT8 activity involving OH3OCM, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-12.

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 42 FT8 messages attributed to OH3OCM as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 42

First attributed message: 2026-09-12
Last attributed message: 2026-09-12 20:03 UTC

Observed FT8 message patterns

Attributed sample: 42 messages
Active dates: 1 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to -1 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 21.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with OH3OCM in decoded directed-looking exchanges:

DO3PKE · Fed. Rep. of Germany DO9BAU · Fed. Rep. of Germany EU1EU · Belarus LZ2VQ · Bulgaria OH5CY · Finland OH5KNL · Finland R2EA · European Russia R3DMS · European Russia R4CHN · European Russia RA4Y · European Russia RX3DRC · European Russia

Most frequent locator attributed to OH3OCM

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: KP20 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-09-12 20:00 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 UTC	Band	OH3OCM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 20:03	80m	- / -10	YO6LM	+2 / -	2	Partial capture
09-12 20:00	80m	-8 / -	OH5KNL	+1 / -	7	✓ Full exchange observed
09-12 20:00	80m	-5 / -9	F1PBZ	-1 / -2	5	Partial capture
09-12 20:00	80m	-1 / -	OH2DOF	-23 / +7	3	Partial capture
09-12 19:58	80m	-5 / -	F4FSY	- / -5	3	Partial capture
09-12 19:56	80m	+1 / -	F6FEG	- / -14	2	Partial capture
09-12 19:51	80m	-5 / -16	DO9BAU	+7 / +5	12	✓ Full exchange observed
09-12 19:49	80m	-8 / -15	LZ2VQ	-2 / -6	10	✓ Full exchange observed
09-12 19:49	80m	-2 / -15	R3DMS	-4 / -	3	✓ Full exchange observed
09-12 19:48	80m	-14 / -1	OH5CY	0 / -	6	✓ Full exchange observed
09-12 19:45	80m	-13 / -	R4HLM	- / +2	2	Partial capture
09-12 19:44	80m	- / -13	EU1EU	-6 / -	2	✓ Closing fragment
09-12 19:44	80m	-12 / -10	R2EA	0 / -	4	✓ Full exchange observed
09-12 19:42	80m	-12 / +5	R1NW	-12 / -	2	Partial capture
09-12 19:40	80m	- / +4	RA4Y	-3 / -	4	✓ Closing fragment
09-12 19:39	80m	-20 / -	OH2LGA	- / +8	2	Partial capture
09-12 19:37	80m	-18 / -	IQ4JO	- / 0	2	Partial capture
09-12 19:36	80m	-23 / -	RK6OQ	- / +7	2	Partial capture
09-12 19:27	80m	- / -13	RX3DRC	-14 / -	4	✓ Closing fragment
09-12 19:24	80m	-13 / -	R4CHN	- / -8	3	✓ 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  +4 2457  OH3OCM OH5KNL KP42
200045  +5 2400  OH3OCM F1PBZ -09
200100  -1 1903  OH2DOF OH3OCM RRR
200115  -3 2457  OH3OCM OH5KNL KP42
200115  -5 2400  OH3OCM F1PBZ -09 (x2)
200200  -5 1903  F1PBZ OH3OCM R-02
200230  -9 1903  OH5KNL OH3OCM +35
200245  +2 2458  OH3OCM OH5KNL R+26
200300  -7 1903  OH5KNL OH3OCM RRR
200315  +1 2457  OH3OCM OH5KNL RR73
200330  -7 1903  OH5KNL OH3OCM 73
200345  -1 2037  OH3OCM YO6LM KN25
200345  +2 1899  OH3OCM 9A4ZM JN86
200415  +5 2037  OH3OCM YO6LM R-10

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