OM5DM — 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: Slovak Republic Most frequent locator attributed to this token: JN98

Receiver-side FT8 activity involving OM5DM, decoded by SO8OO in southeastern Poland. 223 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-07-27 and 2026-11-03.

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 223 FT8 messages attributed to OM5DM as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (57%), followed by 40 m (39%) and 160 m (4%). Most decodes (91%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (100%); the estimated median was +15 dB.

Overview

223

Messages attributed

UTC dates decoded

Active 15-min windows

+15 dB

Estimated median S/N

Bands

160m · 9 80m · 127 40m · 86 20m · 1

First attributed message: 2026-07-27
Last attributed message: 2026-11-03 05:33 UTC

Observed FT8 message patterns

Attributed sample: 223 messages
Active dates: 14 UTC dates
Estimated median S/N: +15 dB
Estimated 10th-90th percentile: +8 to +21 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 222.

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 OM5DM in decoded directed-looking exchanges:

KH8WW · American Samoa

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 OM5DM

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: JN98 · 192 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 258 km (approx.)
Last such locator decoded: 2026-11-03 05:33 UTC

Other locator fields attributed to this token: JN88 (19).

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	OM5DM S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 05:34	80m	- / +9	DO1ID	+5 / -	8	Partial capture
11-03 05:33	80m	+18 / -18	6W/IK2HKT	-11 / -8	3	Partial capture
11-03 05:29	80m	- / -18	6W/IK2HKT	-8 / -	2	Partial capture
11-03 05:28	80m	+18 / -	R8XF/P	- / -11	4	Partial capture
10-20 22:48	160m	+20 / -	7P8GE	- / -	2	Partial capture
10-10 15:36	40m	+3 / -	FW1P	- / -10	3	Partial capture
10-08 18:45	160m	+15 / +7	SM2LIY	+5 / -	2	Partial capture
09-23 17:09	40m	+5 / -	KH8WW	- / -9	3	✓ Closing fragment
09-22 17:56	160m	+12 / -	RI1FJZ	- / -9	6	Partial capture
09-22 14:43	40m	+17 / -	KH8WW	- / -	5	Partial capture
09-20 17:05	80m	+24 / -	RI1FJZ	- / -11	7	Partial capture
09-09 05:14	80m	+18 / -	SN100PKP	- / -15	2	Partial capture
09-05 05:15	40m	-4 / -	RD9M/3	- / -13	2	Partial capture
09-01 20:09	80m	+14 / -	RI1FJL	- / -13	5	Partial capture
08-31 22:53	80m	- / +7	G5MET	-16 / -	5	Partial capture
08-31 22:28	80m	+15 / -	RI1FJL	- / -	51	Partial capture
08-31 21:17	80m	+17 / -	RI1FJL	- / -	55	Partial capture
08-28 17:17	40m	+13 / -	RI1FJL	- / -	71	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
052945 +22 1232  R8XF/P OM5DM R-11
053000  -9  615  OM5DM 6W/IK2HKT -18
053015 +16 1232  R8XF/P OM5DM R-13 (x2)
053315 +21 1237  6W/IK2HKT OM5DM JN98
053330 -11  615  OM5DM 6W/IK2HKT -18
053345 +14 1237  6W/IK2HKT OM5DM R-08
053430  +3  237  OM5DM DO1ID +09 (x8)

160m

UTC    dB Audio  Message
175645 +13 2296  RI1FJZ OM5DM JN88 (x6)
184515 +15  955  SM2LIY OM5DM JN98
184530  +5 1257  OM5DM SM2LIY +07
224815 +20  966  7P8GE OM5DM JN98 (x2)

40m

UTC    dB Audio  Message
175515 +14  831  RI1FJL OM5DM JN98 (x2)
051545  -3 2447  RD9M/3 OM5DM JN88 (x2)
144315 +22 2746  KH8WW OM5DM JN88 (x8)
153645  +2 1454  FW1P OM5DM JN98 (x3)

20m

UTC    dB Audio  Message
060830 -22 2140  OH0ERF OM5DM JN98

10m

UTC    dB Audio  Message
082645 -24 2119  OM5DM R2EA -07

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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