SM7OYP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JO66

Receiver-side FT8 activity involving SM7OYP, decoded by SO8OO in southeastern Poland. 1,558 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 42 UTC dates in the available aggregate history. Observed between 2026-06-06 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 1,558 FT8 messages attributed to SM7OYP as the transmitting token by decoded message structure across 42 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (37%), followed by 80 m (36%) and 40 m (27%). Most decodes (89%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -2 dB.

Overview

1,558

Messages attributed

UTC dates decoded

184

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 5 80m · 561 40m · 422 20m · 570

First attributed message: 2026-06-06
Last attributed message: 2026-09-30 19:57 UTC

Observed FT8 message patterns

Attributed sample: 1,558 messages
Active dates: 42 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -11.7 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 269, strong (≥ -8 dB) 1,242.

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 SM7OYP in decoded directed-looking exchanges:

R5AV · European Russia ×3 ON1DGN · Belgium ×2 RV3X · European Russia ×2 DL9KM · Fed. Rep. of Germany ×2 F1PBZ · France ×2 GJ0KYZ · Jersey ×2 RW1AI · European Russia ×2 DG4BBK · Fed. Rep. of Germany ×2 DL9DX · Fed. Rep. of Germany ×2 DO3JP · Fed. Rep. of Germany ×2 EB1LA · Spain ×2 IZ6SCG · Italy ×2

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 SM7OYP

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: JO66 · 1,137 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 934 km (approx.)
Last such locator decoded: 2026-09-30 19:57 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	SM7OYP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-03 17:52	60m	- / -	IV3DSG	+10 / -	4	Partial capture
10-03 12:39	10m	- / -7	EA1HTF	-2 / -	2	Partial capture
09-30 19:57	160m	-11 / -	OH0Z	- / -	2	Partial capture
09-30 19:52	160m	-10 / -	OH0Z	- / -	2	Partial capture
09-28 16:51	80m	-6 / -	BH3AGU	- / -	2	Partial capture
09-28 05:13	40m	-9 / -	AL7LO	- / -	5	Partial capture
09-28 05:11	40m	-6 / -	W7XE	- / -	2	Partial capture
09-28 05:09	40m	-2 / -	OA4ENG	- / -	2	Partial capture
09-28 05:05	40m	-10 / -	KC7CM	- / -8	2	Partial capture
09-28 05:02	40m	-11 / -2	GJ0KYZ	-4 / -	3	✓ Closing observed
09-28 04:58	40m	-14 / -	KL7J	- / +4	2	Partial capture
09-28 04:56	40m	-9 / -22	UC6D	0 / -	3	✓ Closing observed
09-28 04:49	40m	-2 / -	W2TT	- / -	2	Partial capture
09-27 21:18	40m	- / -10	CT7AXN	-4 / -	2	✓ Closing fragment
09-27 20:52	40m	- / -1	G4ZAM	+3 / -	2	✓ Closing fragment
09-27 20:51	40m	- / -9	UA9SY	-2 / -	4	Partial capture
09-27 20:26	80m	-3 / -	JF2SQB	- / -	8	Partial capture
09-27 20:24	80m	0 / -	JA2NDQ	- / -	2	Partial capture
09-26 22:09	80m	- / -	DO1SWC	+4 / -	4	Partial capture
09-26 22:07	80m	0 / -	9V1YC	- / -	4	Partial capture
09-26 22:05	80m	-1 / -	7Z1IS	- / -	3	Partial capture
09-26 22:03	80m	-5 / -	BD8CS	- / -	3	Partial capture
09-26 21:08	160m	-11 / -12	DL5EBS	+9 / -	4	✓ Closing observed
09-26 21:02	40m	- / -	IZ4AIF	+9 / -	3	✓ Closing fragment
09-26 20:07	40m	- / -20	HB9EXN	-2 / -	4	Partial capture
09-26 20:00	40m	-9 / -	VK4DAD	- / -	3	Partial capture
09-26 19:58	40m	-2 / -	EU1AFX	- / +7	2	✓ Closing fragment
09-26 19:46	40m	-4 / -	SP7OK	- / -1	4	✓ Closing fragment
09-26 19:41	40m	0 / -	BG0HP	- / -	7	Partial capture
09-26 19:35	40m	+2 / -	VK4DAD	- / -	12	Partial capture
09-26 19:33	40m	+2 / -3	RZ6AKF	-5 / -	2	Partial capture
09-26 19:29	40m	+2 / -	OE3RGG	- / +1	2	✓ Closing fragment
09-26 19:23	40m	0 / -	UB9WPD	-9 / -1	3	✓ Closing observed
09-26 19:23	40m	-1 / -	OH7WL	- / -1	3	✓ Closing fragment
09-26 19:19	40m	+1 / -	SP7LPD	- / +7	2	✓ Closing fragment
09-26 19:15	40m	-3 / -	BG0HP	- / -	2	Partial capture
09-26 19:13	40m	-2 / -	M0IEP	- / -1	2	✓ Closing fragment
09-26 19:08	40m	-6 / -	UN7EAX	- / -20	4	Partial capture
09-26 19:07	40m	- / -	DB4ST	-16 / -	3	Partial capture
09-26 19:05	40m	-2 / -11	PA3FR	-4 / -	5	✓ Full exchange observed
09-26 19:01	40m	0 / -	ZL3TX	- / -	2	Partial capture
09-26 18:59	40m	-1 / -	UB3BDB	- / -16	2	✓ Closing fragment
09-26 18:57	40m	-4 / +3	PD0PY	-2 / -	5	✓ Full exchange observed
09-26 18:55	40m	-1 / -	BG0HP	- / -	2	Partial capture
09-26 18:50	40m	+1 / -	M7NFV	-7 / -3	3	✓ Closing observed
09-26 18:48	40m	+2 / -2	PA3BRB	+8 / -	5	✓ Full exchange observed
09-26 18:46	40m	+2 / -	MM6EJO	- / 0	2	✓ Closing fragment
09-26 18:22	40m	+2 / -4	PD9SD	-13 / -	3	✓ Full exchange observed
09-26 18:19	40m	-3 / -	M7DDW	- / +1	3	Partial capture
09-26 18:17	40m	-7 / -	PD3CFG	- / -13	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
175230  +6 1043  SM7OYP IV3DSG JN66 (x4)

10m

UTC    dB Audio  Message
123945  +0 2688  SM7OYP EA1HTF IN52 (x2)

160m

UTC    dB Audio  Message
174345 -20 2492  SM7OYP DK5WO JO30 (x3)
174615  +5 2216  SM7OYP DG0OBU RR73
175200 -10  801  SM7OYP OH6RE KP22 (x3)
210830  +8  431  SM7OYP DL5EBS JO31 (x2)
210915 -11 2901  DL5EBS SM7OYP RRR
210930  +8  431  SM7OYP DL5EBS 73
195215  -8 2717  OH0Z SM7OYP JO66 (x4)

80m

UTC    dB Audio  Message
221100  +2 2622  SM7OYP DO1SWC JN58
221115  -7 2621  7Z1IS SM7OYP JO66
202445  -2 2811  JA2NDQ SM7OYP JO66 (x2)
202615  -3 2810  JF2SQB SM7OYP JO66 (x7)
203015  +0 2810  JH7XMO SM7OYP JO66
203115  -2 2810  JF2SQB SM7OYP JO66
165100  -5 2555  BH3AGU SM7OYP JO66 (x2)

40m

UTC    dB Audio  Message
050330 -11 2526  GJ0KYZ SM7OYP 73
050400 -13 2526  CQ SM7OYP JO66
050545 -14 2526  KC7CM SM7OYP JO66 (x2)
050815  -3 2915  CQ SM7OYP JO66                        a1
050915  +0 2915  OA4ENG SM7OYP JO66 (x2)
051100  -6 2915  W7XE SM7OYP JO66 (x2)
051300  -8 2915  AL7LO SM7OYP JO66 (x6)

20m

UTC    dB Audio  Message
193245  -4 2426  SM7OYP SV1TRJ KM27 (x5)
190715  +6 2599  SM7OYP EA8JB IL28 (x3)
191015 -18 2104  SM7OYP EP2AES LM55 (x2)
192645  -9 2847  SM7OYP OZ1BUR 73
194030 -14 2841  SM7OYP EA4IMO R-07
195930  -2 2840  SM7OYP YB5SD OJ01 (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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