OE3YMM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Austria Most frequent locator attributed to this token: JN88

Receiver-side FT8 activity involving OE3YMM, decoded by SO8OO in southeastern Poland. 210 FT8 messages attributed to this token as transmitter, on 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-28 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 210 FT8 messages attributed to OE3YMM as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (92%) fell within the six-hour window 13:00-19:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +1.5 dB.

Overview

210

Messages attributed

UTC dates decoded

Active 15-min windows

+1.5 dB

Estimated median S/N

Bands

40m · 210

First attributed message: 2026-08-28
Last attributed message: 2026-09-20 11:18 UTC

Observed FT8 message patterns

Attributed sample: 210 messages
Active dates: 6 UTC dates
Estimated median S/N: +1.5 dB
Estimated 10th-90th percentile: -8 to +18 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 194.

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 OE3YMM in decoded directed-looking exchanges:

9A3CX · Croatia ×2 F6FHZ · France ×2 HB9IIH · Switzerland R3DFC · European Russia RX6DA · European Russia RZ9A · Asiatic Russia SA3SHN · Sweden BG5JGG · China BG7BVP · China DL0HAM · Fed. Rep. of Germany EA7L · Spain G4DBW · England

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 OE3YMM

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: JN88 · 102 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 383 km (approx.)
Last such locator decoded: 2026-09-20 11:17 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	OE3YMM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 11:17	40m	+9 / -	DL0HAM	+8 / -	5	✓ Full exchange observed
09-13 16:10	40m	- / -	F5ADE	-4 / -	4	Partial capture
09-13 16:07	40m	+2 / -	SA7CHI	- / -	2	Partial capture
09-13 16:06	40m	-1 / -14	UT0UE	+1 / -4	5	✓ Full exchange observed
09-13 16:01	40m	0 / -	ON1DGN	- / -8	5	Partial capture
09-13 14:18	40m	-8 / -	GW6OHV	- / -	5	Partial capture
09-13 14:15	40m	-5 / -1	SP6PCB	-2 / +5	6	✓ Full exchange observed
09-13 14:08	40m	-2 / -	9A3MAD	- / -	2	Partial capture
09-13 13:51	40m	-6 / -1	OE5ABL	-18 / +4	5	✓ Full exchange observed
09-13 13:48	40m	-5 / +6	3Z100PKP	-11 / -3	6	Partial capture
09-13 13:48	40m	-8 / -	SQ2RBY/P	- / +3	2	Partial capture
09-13 13:42	40m	-3 / -	II8IHBC	- / 0	6	Partial capture
09-02 16:55	40m	+19 / -	SQ3KO	- / -14	3	Partial capture
09-02 16:51	40m	+16 / -2	R2EA	-9 / +1	5	✓ Full exchange observed
09-02 16:50	40m	+15 / -	UA3RN	- / -14	4	✓ Closing fragment
09-02 16:47	40m	+14 / -5	US3EW	-8 / -8	7	✓ Full exchange observed
09-02 16:46	40m	+15 / -	BG5JGG	- / -15	2	✓ Closing fragment
09-02 16:44	40m	+16 / -	UA3RN	- / -9	4	Partial capture
09-02 16:42	40m	+15 / -	BG7BVP	- / -6	3	✓ Closing fragment
09-02 16:41	40m	+14 / -	EA7L	- / 0	3	✓ Closing fragment
09-02 16:40	40m	+13 / -	DS2CYI	- / -11	2	Partial capture
09-02 16:36	40m	+9 / -10	R2DRE	+1 / -12	8	✓ Full exchange observed
09-02 16:33	40m	+14 / -	VK2LAW	- / -17	7	✓ Closing fragment
09-02 16:26	40m	+19 / -8	SP9DPM/P	-3 / -	12	✓ Full exchange observed
09-02 16:24	40m	+20 / -	F6FHZ	- / -6	4	✓ Closing fragment
09-02 16:22	40m	+19 / -	OE1AAY	+6 / -	5	✓ Full exchange observed
09-02 16:19	40m	+20 / -	RI1FJL	- / -10	4	✓ Closing fragment
09-02 16:15	40m	+15 / -	RI1FJL	- / -	2	Partial capture
09-02 16:12	40m	+7 / -4	PD1AC	-15 / +5	5	✓ Full exchange observed
09-02 16:09	40m	+7 / -	F1LPT/P	- / -	6	Partial capture
09-02 13:09	40m	+7 / -	YL3CW	- / -	5	Partial capture
09-02 13:01	40m	+8 / -	M5AEH	- / -15	10	✓ Closing fragment
09-02 12:59	40m	+6 / -	F6FHZ	- / -8	2	✓ Closing fragment
09-02 12:56	40m	+6 / -	IR7MGGC	- / -	3	Partial capture
09-02 12:54	40m	+6 / -	G4DBW	- / -2	5	✓ Closing fragment
09-02 12:51	40m	+7 / -	<...>	- / -17	2	Partial capture
09-01 17:37	40m	-3 / -	DF8RU	- / -	2	Partial capture
09-01 17:30	80m	- / -8	DO7RMA	+3 / -	3	✓ Closing fragment
09-01 17:30	80m	- / -	DO4FB	0 / -	2	Partial capture
09-01 17:29	80m	- / -	OE5EYM	+11 / -	2	Partial capture
08-30 18:39	40m	0 / -13	DC9LJ	+2 / +4	4	Partial capture
08-30 18:35	40m	-4 / -9	GB64MOD	-12 / 0	3	Partial capture
08-30 18:32	40m	-4 / +2	SQ5PTZ	-4 / 0	6	✓ Full exchange observed
08-30 18:31	40m	-6 / -	LZ123RF	- / -	2	Partial capture
08-30 18:26	40m	-4 / -17	PD2RAL	-6 / -2	6	✓ Full exchange observed
08-30 18:17	40m	0 / 0	HA7JDU	+1 / +5	5	✓ Full exchange observed
08-30 18:17	40m	-6 / -6	SP7EL	-3 / -	4	Partial capture
08-30 18:13	40m	-14 / -10	GB64MOD	0 / -3	3	Partial capture
08-28 15:25	20m	- / -8	DK8HC/P	-4 / -	3	Partial capture
08-28 14:59	40m	-6 / -	OH5KZ	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
160915  +2 1376  CQ OE3YMM JN88 (x3)
161030  -2 2592  OE3YMM F5ADE JN07
161045  +1 1376  CQ OE3YMM JN88
161100  -5 2592  OE3YMM F5ADE JN07
161130 -12 1376  OE3YMM IN3LHF -01
161130  -4 2592  OE3YMM F5ADE JN07 (x2)
163545  -4 1445  HA7JLR OE3YMM JN88
111715  +8  676  DL0HAM OE3YMM JN88
111730  +9 2478  OE3YMM DL0HAM +14
111745  +9  676  DL0HAM OE3YMM R+26
111800  +7 2478  OE3YMM DL0HAM RR73
111815  +9  676  DL0HAM OE3YMM 73

80m

UTC    dB Audio  Message
172930 +14 2525  OE3YMM OE5EYM JN68 (x2)
173000  -1 1143  OE3YMM DO4FB JO52
173030  +5 1441  OE3YMM DO7RMA -08
173030  +2 1144  OE3YMM DO4FB JO52
173100  +0 1441  OE3YMM DO7RMA -08 (x2)

20m

UTC    dB Audio  Message
131745 +10 2376  OE3YMM F5PEG JN28 (x5)
134645 +15 1463  OE3YMM RZ9A -25 (x2)
135345  -1 1477  OE3YMM F5MXH JN07
140030  -9 1705  OE3YMM EA3HKA +01
152545  -3 1761  OE3YMM DK8HC/P -08 (x3)
153100 -18 1514  OE3YMM RX6DA RR73
153400  -7 1593  OE3YMM F5PBG R-10
180630  -1 1716  OE3YMM HB9IIH RR73

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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