OM5YL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Slovak Republic Most frequent locator attributed to this token: JN98

Receiver-side FT8 activity involving OM5YL, decoded by SO8OO in southeastern Poland. 74 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-09-20.

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 74 FT8 messages attributed to OM5YL as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (74%), followed by 160 m (16%) and 20 m (8%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (99%); the estimated median was +11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+11 dB

Estimated median S/N

Bands

160m · 12 80m · 55 60m · 1 20m · 6

First attributed message: 2026-07-02
Last attributed message: 2026-09-20 20:18 UTC

Observed FT8 message patterns

Attributed sample: 74 messages
Active dates: 7 UTC dates
Estimated median S/N: +11 dB
Estimated 10th-90th percentile: +5 to +18 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 73.

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 OM5YL in decoded directed-looking exchanges:

RI1FJZ · Franz Josef Land UT7UA · Ukraine EA1IOK · Spain VY0ERC · Canada DL9KM · Fed. Rep. of Germany DO9BAU · Fed. Rep. of Germany R2ASY · European Russia RA3TKS · European Russia RC9WC · Asiatic Russia UR9QQ · Ukraine YE6YE · Indonesia YO4LUP · Romania

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 OM5YL

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 · 35 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 258 km (approx.)
Last such locator decoded: 2026-09-20 20:14 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	OM5YL S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 20:15	160m	+12 / +2	UT7UA	+20 / +4	7	✓ Full exchange observed
09-20 20:15	160m	+6 / -6	R2EA/P	-3 / -8	3	Partial capture
09-20 20:14	160m	+9 / -	RI1FJZ	- / -18	3	✓ Closing fragment
09-03 20:18	160m	+6 / -	RI1FJL	- / -13	4	Partial capture
08-30 18:02	80m	+15 / -15	RC9WC	-17 / -5	5	✓ Full exchange observed
08-30 18:01	80m	+16 / -4	YO4LUP	-17 / 0	6	✓ Full exchange observed
08-30 18:00	80m	+14 / -	YO4DWD	- / -8	2	Partial capture
08-30 17:27	80m	+8 / -	9V1YC	- / -	5	Partial capture
08-30 17:26	80m	+17 / -	UA4FKT	- / +7	3	Partial capture
08-30 17:23	80m	+15 / -13	YE6YE	-9 / -8	6	✓ Full exchange observed
08-30 17:21	80m	+12 / 0	DL9KM	-6 / -	10	✓ Full exchange observed
08-30 17:20	80m	+12 / 0	DO9BAU	-2 / +7	9	✓ Full exchange observed
08-30 17:20	80m	+4 / -	UA4FKT	+4 / +6	4	Partial capture
08-30 17:19	80m	+16 / -7	UR9QQ	-3 / -1	6	✓ Full exchange observed
08-30 17:14	80m	+9 / -	9V1YC	- / -	12	Partial capture
08-29 20:33	80m	+15 / -	RI1FJL	- / -	5	Partial capture
07-18 16:13	20m	+6 / -	EA1IOK	- / -12	2	✓ Closing fragment
07-18 16:11	20m	+7 / -	VY0ERC	- / -18	4	✓ Closing fragment
07-02 19:58	80m	+16 / -	TN8GD	- / -25	10	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
201415  +7 1805  RI1FJZ OM5YL JN98 (x2)
201500  -3 2460  OM5YL R2EA/P -06
201515 +11 1805  RI1FJZ OM5YL 73
201530 +17 2594  OM5YL UT7UA KO50
201545  +4 1805  R2EA/P OM5YL R-08
201600 +22 2594  OM5YL UT7UA KO50
201615  +8 1805  R2EA/P OM5YL R-08
201630 +20 2594  OM5YL UT7UA KO50
201645 +12 1805  UT7UA OM5YL +04
201700 +18 2594  OM5YL UT7UA R+02
201715 +12 1805  UT7UA OM5YL RR73
201730 +22 2594  OM5YL UT7UA 73
201730 -13  219  OM5YL EA3HMM JN00
201815  +3 1805  R3ICU OM5YL -25

60m

UTC    dB Audio  Message
183730  +5 1564  D2ACE OM5YL JN98

80m

UTC    dB Audio  Message
175930  -8 2046  RA3TKS OM5YL 73
180000 +13 2046  YO4DWD OM5YL R-08 (x2)
180100 +15 2046  R2ASY OM5YL RR73
180115 -24 1990  OM5YL YO4LUP KN43
180200 +15 2046  RC9WC OM5YL R-05
180215 -20 1406  OM5YL RC9WC RR73
180230 +15 2046  RC9WC OM5YL 73
180245 -19 1406  OM5YL RC9WC -15
180300 +22 2046  YO4LUP OM5YL +00 (x2)
180345 -13 1990  OM5YL YO4LUP R-04
180345 -13 1406  OM5YL RC9WC -13
180400 +14 2046  YO4LUP OM5YL RR73
180415 -15 1990  OM5YL YO4LUP 73

20m

UTC    dB Audio  Message
161100  +7 2295  VY0ERC OM5YL JN98 (x4)
161330  +5 2295  EA1IOK OM5YL -12 (x2)
090200 -20 1716  OM5YL R4FDW -06

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee