EM90ZMV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine

Receiver-side FT8 activity involving EM90ZMV, decoded by SO8OO in southeastern Poland. 1,588 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 48 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-30.

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 1,588 FT8 messages attributed to EM90ZMV as the transmitting token by decoded message structure across 48 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (37%), followed by 40 m (28%) and 20 m (24%). Most decodes (71%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +2 dB.

Overview

1,588

Messages attributed

UTC dates decoded

161

Active 15-min windows

+2 dB

Estimated median S/N

Bands

80m · 585 40m · 440 20m · 376 10m · 187

First attributed message: 2026-06-07
Last attributed message: 2026-09-30 19:28 UTC

Observed FT8 message patterns

Attributed sample: 1,588 messages
Active dates: 48 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -11.4 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 72, moderate (-15 to -9 dB) 215, strong (≥ -8 dB) 1,301.

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 EM90ZMV in decoded directed-looking exchanges:

Z335MK · North Macedonia ×4 N8HRZ · United States EK1KE · Armenia 4Z4DX · Israel DL7UKM · Fed. Rep. of Germany HF780C · Poland UR3QCB · Ukraine

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.

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	EM90ZMV S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-01 04:09	80m	- / -	S55DX	+13 / -	15	Partial capture
09-30 20:09	80m	- / -	F5PBG	-10 / -	2	Partial capture
09-30 19:57	80m	- / +5	SP9BEB	+10 / -	7	Partial capture
09-30 19:45	80m	- / -	F5PBG	-5 / -	2	Partial capture
09-30 19:32	80m	- / -	DK7OM	-9 / -	4	Partial capture
09-30 19:28	80m	+5 / -	<...>	-13 / -	2	✓ Closing fragment
09-30 19:25	80m	-2 / -6	DK7OM	-8 / -20	8	Partial capture
09-30 19:25	80m	- / -	F5PBG	-6 / -	2	Partial capture
09-30 19:24	80m	- / -	DD1OP	-16 / -	2	Partial capture
09-30 19:24	80m	-8 / -4	IU4QQE	-12 / -12	7	Partial capture
09-30 19:24	80m	-4 / -	<...>	+2 / -	4	✓ Closing fragment
09-30 19:23	80m	0 / +1	HA7XL	+10 / -	3	Partial capture
09-30 19:23	80m	- / -	DO1SWC	-18 / -	8	Partial capture
09-30 19:21	80m	-4 / -	<...>	-6 / -	2	✓ Closing fragment
09-30 19:20	80m	+2 / -2	DA6AX	-9 / -4	2	Partial capture
09-30 19:19	80m	- / -16	HB3YOY	-11 / -	3	Partial capture
09-30 19:18	80m	+3 / -3	F5PBG	-5 / -16	6	Partial capture
09-30 19:18	80m	+2 / -	<...>	+1 / -	2	✓ Closing fragment
09-30 19:13	80m	+4 / -	HB3YOY	- / -17	3	Partial capture
09-30 19:04	80m	-6 / -	<...>	-4 / -	2	✓ Closing fragment
09-30 19:02	80m	+6 / -	<...>	+3 / -	2	✓ Closing fragment
09-30 19:01	80m	-2 / -2	SP9DWT	0 / +1	3	Partial capture
09-29 21:57	80m	-11 / -	S52D	+6 / +3	2	Partial capture
09-29 21:35	80m	-9 / -7	OK1HEH	+7 / -11	5	Partial capture
09-29 21:01	80m	- / -	DO5RBB	-14 / -	2	Partial capture
09-29 20:30	80m	- / -	IU1HGN	-21 / -	3	Partial capture
09-29 19:19	80m	- / -	DO2ANW	-12 / -	2	Partial capture
09-29 18:44	40m	-4 / -	<...>	- / -	2	✓ Closing fragment
09-29 18:43	40m	-4 / +5	TA4SSK	-14 / -2	3	Partial capture
09-29 18:34	40m	-10 / -	<...>	-6 / -	2	✓ Closing fragment
09-29 18:33	40m	-9 / -14	EA5RO	-8 / +8	3	Partial capture
09-29 17:44	40m	- / -22	RD6AK	+2 / -	5	Partial capture
09-29 03:37	80m	- / -15	DM1EE	0 / -	2	Partial capture
09-29 03:35	80m	- / -5	SQ2HCN	-11 / -	3	Partial capture
09-29 03:16	80m	- / -8	G8OO	+2 / -	4	Partial capture
09-29 02:49	80m	+4 / -	<...>	+14 / -	2	✓ Closing fragment
09-29 02:47	80m	- / -15	ES2AJ	+13 / -	2	Partial capture
09-29 02:34	80m	+3 / -	<...>	+5 / -	2	✓ Closing fragment
09-29 02:33	80m	-1 / -	YO6GLT	+2 / -	3	Partial capture
09-29 02:23	80m	+2 / -	LY2EW	+1 / -4	3	Partial capture
09-29 02:21	80m	+4 / -	<...>	+3 / -	7	✓ Closing fragment
09-29 02:21	80m	+5 / -18	PE1NPS	-6 / -8	3	Partial capture
09-29 02:20	80m	- / 0	LZ1ZM	+6 / -	2	Partial capture
09-29 02:18	80m	+1 / -	4Z4DX	- / -11	2	✓ Closing fragment
09-29 02:17	80m	-1 / -	<...>	-22 / -	3	✓ Closing fragment
09-29 02:16	80m	0 / -	SP2ZAB	- / -15	2	Partial capture
09-29 02:10	80m	-5 / -2	DO5WG	+1 / -8	3	Partial capture
09-29 02:09	80m	- / -	PE1NPS	-5 / -	3	Partial capture
09-29 02:07	80m	-2 / -	<...>	-1 / -	10	✓ Closing fragment
09-29 02:07	80m	- / -	R4HLO	-17 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
040930 +10 1337  EM90ZMV S55DX JN75 (x15)

40m

UTC    dB Audio  Message
183900 -11 1969  CQ EM90ZMV (x4)
184315 -15 2283  EM90ZMV TA4SSK KM57
184330  -4 2284  TA4SSK EM90ZMV -02
184345 -14 2283  EM90ZMV TA4SSK R+05
184400  -5 2284  <...> EM90ZMV RR73
184430  -5 2284  CQ EM90ZMV
184500  -3 2284  LY3CY EM90ZMV +14
184530  -4 2284  <...> EM90ZMV RR73
184600 -14 2284  CQ EM90ZMV (x3)
140815 -10 2023  EM90ZMV R6NH -14

20m

UTC    dB Audio  Message
070500  +5 2593  <...> EM90ZMV 73
070530  +0 2593  CQ EM90ZMV
070645  +0 2592  <...> EM90ZMV
070715  -1 2592  N8HRZ EM90ZMV R-08 (x2)
152800  +5 2330  EM90ZMV <...> 73
153130 -10 2328  EM90ZMV PE1KDY R+01
153200 -15 2328  EM90ZMV <...> 73
155615  -3 2326  EM90ZMV F1THK JN02 (x3)
152345  +4 2467  EM90ZMV <...> 73 (x2)
070845  -8 2910  EM90ZMV N3YT FM19
170415 -15 1679  EM90ZMV <...> 73

10m

UTC    dB Audio  Message
093715  -1 2477  EM90ZMV F4FED JO10
093730 -14 2462  F4FED EM90ZMV -07
093830 -16 2452  CQ EM90ZMV
094145  -8 1701  EM90ZMV <...> 73 (x2)
094400  -7 2427  CQ EM90ZMV
094445  +3 2152  EM90ZMV HB9COF JN47
094630  -9 2537  CQ EM90ZMV
094645 -15 2541  EM90ZMV DN9AEM -17
094700 -12 2534  CQ EM90ZMV
094715 -11 2539  EM90ZMV UA4FKT LO23 (x2)
094800 -12 2531  TA2EE EM90ZMV -05
132645  -9  592  EM90ZMV <...> RR73 (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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