YO9EMI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN34

Receiver-side FT8 activity involving YO9EMI, decoded by SO8OO in southeastern Poland. 119 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-09-05.

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 119 FT8 messages attributed to YO9EMI as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 20 m (31%) and 10 m (14%). Most decodes (76%) 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 -7 dB.

Overview

119

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 1 60m · 8 40m · 56 20m · 37 10m · 17

First attributed message: 2026-06-22
Last attributed message: 2026-09-05 16:46 UTC

Observed FT8 message patterns

Attributed sample: 119 messages
Active dates: 15 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 65.

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 YO9EMI in decoded directed-looking exchanges:

R2EC · European Russia 7Z1BM · Saudi Arabia 9K2HN · Kuwait F1PBZ · France OZ9FF · Denmark RL3K · European Russia TA3TER · Asiatic Turkey UN8DSW · Kazakhstan EA5HM · Spain F5RRS · France PP5ZP · Brazil RM5C · European Russia

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 YO9EMI

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: KN34 · 87 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 721 km (approx.)
Last such locator decoded: 2026-09-05 16:46 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	YO9EMI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 16:45	40m	+1 / -	UN6GO	- / -	2	Partial capture
08-28 17:38	40m	+2 / -	UN6GO	- / -	5	Partial capture
08-27 18:30	40m	+6 / -	BO6LEC	- / -	5	Partial capture
08-27 18:17	40m	+8 / -	UK8OM	- / -2	5	✓ Closing fragment
08-23 18:36	40m	-1 / -	UN0PA	- / -	3	Partial capture
08-23 16:12	40m	+5 / -	UN3P	- / -	3	Partial capture
08-23 16:12	40m	+1 / -	VJ6X	- / -	3	Partial capture
08-23 15:23	20m	- / -18	EK1KE	-12 / -	2	Partial capture
08-23 09:23	20m	-10 / -	TT1GD	- / -	2	Partial capture
08-20 17:59	20m	+2 / -	XU7O	- / -	6	Partial capture
08-20 17:57	20m	+1 / -	TJ1GD	- / -	3	Partial capture
08-20 17:53	20m	+4 / -	TJ1GD	- / -	3	Partial capture
08-19 19:17	20m	- / -15	PY7XC	-12 / -	2	Partial capture
08-19 19:14	60m	- / -	DL6ZXG	+3 / -	3	Partial capture
08-19 19:13	60m	+6 / 0	ON7GB	-4 / -	8	✓ Closing observed
08-19 19:11	60m	+6 / -	OM5JG	+2 / +1	8	✓ Full exchange observed
08-06 11:20	20m	-4 / -	IH9YMC	- / -	2	Partial capture
08-01 21:26	40m	-21 / -5	DL7ACA	-14 / -	3	Partial capture
08-01 21:25	40m	-20 / -	EA5HM	- / -	2	✓ Closing fragment
08-01 21:21	40m	-15 / -	PP5ZP	- / -23	5	✓ Closing fragment
08-01 21:20	40m	- / -16	F5RRS	-11 / -	3	✓ Closing fragment
08-01 21:18	40m	-10 / -	UN7PPV	- / -25	2	✓ Closing fragment
08-01 21:16	40m	-7 / -	TA3NK	- / -2	2	✓ Closing fragment
08-01 21:16	40m	-10 / -23	RM5C	-11 / -18	6	✓ Full exchange observed
08-01 21:13	40m	-7 / -	TJ1GD/P	- / -22	5	Partial capture
08-01 21:12	40m	-9 / -	PP5ZP	- / -	2	Partial capture
08-01 19:20	40m	-20 / -5	YO1BRANCUSI	-16 / -	2	Partial capture
07-31 19:07	60m	- / -	ON7GB	-4 / -	3	Partial capture
07-31 10:22	20m	- / -5	OZ9FF	-16 / -	3	✓ Closing fragment
07-31 09:28	20m	- / -4	RL3K	-4 / -	4	✓ Closing fragment
07-31 09:28	20m	-18 / +3	TA3TER	-19 / -	4	✓ Closing observed
07-31 08:02	20m	-12 / -	<...>	- / +4	5	Partial capture
07-31 05:55	20m	-20 / -	KA9FOX	- / -	2	Partial capture
07-20 17:17	20m	- / -14	7Z1BM	-13 / -	3	✓ Closing fragment
06-30 07:00	20m	-10 / -5	WJ2D	-4 / -	2	Partial capture
06-28 21:57	20m	-12 / -	KF0YOB	- / -	3	Partial capture
06-28 21:56	20m	-7 / -11	D2UY	-13 / -	4	Partial capture
06-28 21:43	10m	-9 / -20	CE2SV	+2 / -	4	Partial capture
06-28 21:39	20m	-12 / -13	KF0YOB	-18 / -	7	Partial capture
06-28 18:49	10m	- / -	DN9AD	+2 / -	2	Partial capture
06-28 18:42	10m	- / -	UX7QG	-4 / -	3	Partial capture
06-28 18:42	10m	- / -	R3BCK	-2 / -	2	Partial capture
06-28 17:19	40m	-10 / -	3D2USU	- / -	4	Partial capture
06-28 08:29	10m	-1 / -	R2EC	- / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
181900  +6 2825  UK8OM YO9EMI R-02 (x2)
183015 +12 2825  BO6LEC YO9EMI KN34 (x5)
173815  +2 2514  UN6GO YO9EMI KN34 (x5)
164515  +5 2307  Z34CMF YO9EMI 73
164545  +0 2307  UN6GO YO9EMI KN34 (x2)

80m

UTC    dB Audio  Message
184145 -14 2737  <...> YO9EMI KN34

20m

UTC    dB Audio  Message
175415  +7 2829  TJ1GD YO9EMI KN34 (x5)
175915  +0 2829  XU7O YO9EMI KN34 (x6)
092315  -9 2193  TT1GD YO9EMI KN34 (x2)
152300 -13 1321  YO9EMI EK1KE -18 (x2)

60m

UTC    dB Audio  Message
191245  +0 1200  YO9EMI OM5JG +14
191300  +8 2699  OM5JG YO9EMI R+01
191315  -5 1112  YO9EMI ON7GB JO21
191315  +0 1200  YO9EMI OM5JG RR73
191330  +5 2700  OM5JG YO9EMI 73
191345  -5 1112  YO9EMI ON7GB JO21
191400  +6 2699  ON7GB YO9EMI 73
191415  -4 1113  YO9EMI ON7GB JO21
191430  +5 2700  ON7GB YO9EMI RR73
191445  -3 1112  YO9EMI ON7GB +00
191445  +3 2504  YO9EMI DL6ZXG JO51
191515  -5 1112  YO9EMI ON7GB +00
191515  +4 2504  YO9EMI DL6ZXG JO51
191545  -3 1112  YO9EMI ON7GB +00
191545  +3 2504  YO9EMI DL6ZXG JO51

10m

UTC    dB Audio  Message
184045 -13 1444  MI0RTX YO9EMI KN34
184115 -16 1444  CQ YO9EMI KN34 (x2)
184200  -2 2990  YO9EMI R3BCK KO85
184230  -1 1445  YO9EMI UX7QG KO50 (x2)
184300  -3 2990  YO9EMI R3BCK KO85
184330  -3 1445  YO9EMI UX7QG KO50
184900  +0  711  YO9EMI DN9AD JO52 (x2)
214330  -9 2561  CE2SV YO9EMI KN34
214430 -12 2398  <...> YO9EMI KN34
214515  +2 2561  YO9EMI CE2SV -20 (x3)

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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