SN1O — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO73

Receiver-side FT8 activity involving SN1O, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-08-29.

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 31 FT8 messages attributed to SN1O as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (65%), followed by 80 m (19%) and 20 m (16%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was -1 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-1 dB

Estimated median S/N

Bands

80m · 6 40m · 20 20m · 5

First attributed message: 2026-06-12
Last attributed message: 2026-08-29 22:25 UTC

Observed FT8 message patterns

Attributed sample: 31 messages
Active dates: 5 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -8 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 28.

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 SN1O in decoded directed-looking exchanges:

LZ6C · Bulgaria ×2 M0BEW · England NF3R · United States OD5KU · Lebanon OE9KFV · Austria PD3LKN · Netherlands RU3QR · European Russia RZ9A · Asiatic Russia UN7PNF · Kazakhstan YO4NF · Romania DC4CP · Fed. Rep. of Germany EA5HM · Spain

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 SN1O

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: JO73 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 613 km (approx.)
Last such locator decoded: 2026-08-29 22:22 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	SN1O S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 08:14	20m	- / -	PD3LKN	+13 / -	2	✓ Closing fragment
08-29 22:24	80m	+9 / -	DO9BAU	+10 / -	5	✓ Closing observed
08-29 22:24	80m	+9 / -	UA4FKT	+4 / -	4	✓ Closing observed
08-29 22:22	80m	+8 / -	LZ6C	-4 / -	5	✓ Closing observed
08-29 22:20	40m	- / -	LU1AW	-7 / -	2	Partial capture
08-29 22:19	40m	- / -	EA5HM	-2 / -	2	✓ Closing fragment
08-29 22:17	40m	- / -	OK1WCF	-18 / -	2	✓ Closing fragment
08-29 16:59	40m	-1 / -	OE8PIT	-12 / -	3	Partial capture
08-29 16:57	40m	+1 / -	LX7I	+4 / -	3	✓ Closing observed
08-29 16:57	40m	0 / -	M0CQL	-20 / -	4	Partial capture
08-29 16:55	40m	-5 / -	MI5JYK	- / -	2	Partial capture
08-29 16:52	40m	+3 / -	DC4CP	0 / -	4	✓ Closing observed
08-29 16:49	40m	+6 / -	IZ4AKM	-5 / -	3	✓ Closing observed
08-29 16:41	40m	+2 / -	SQ1BVG	- / -	2	Partial capture
08-15 18:50	20m	- / -3	R4FDW	-17 / -	4	Partial capture
08-11 18:50	20m	- / -3	TF4M	-11 / -	2	Partial capture
08-09 20:39	20m	- / -	EB3JT	+6 / -	6	Partial capture
08-09 17:50	20m	- / -13	RU3QR	-13 / -	2	✓ Closing fragment
08-04 18:35	20m	- / -4	EA3HMM	0 / -	5	Partial capture
07-10 06:08	20m	- / -18	G0ANH	-23 / -	2	Partial capture
07-10 06:06	20m	- / -6	OE9KFV	-13 / -	3	✓ Closing fragment
07-10 06:02	20m	- / -11	EB3JT	-4 / -	7	Partial capture
07-10 05:57	20m	- / -14	OD5KU	+8 / -	3	✓ Closing fragment
06-26 17:27	20m	-16 / -12	IQ9BF	-16 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
185045  -7 2228  SN1O TF4M -03 (x2)
161700 -10 2013  SN1O UN7PNF RR73
185000 -13 1630  SN1O M0BEW RR73
185030 -17 1725  SN1O R4FDW -03 (x4)
132530  +3 2100  SN1O RN6MA +08
133000  +0 2382  SN1O RZ9A RR73
142345  -9 2073  SN1O JA6GCE R PM52
081345  +2 1418  SN1O LZ6C RR73
081445 +13 1325  SN1O PD3LKN JO22 (x2)
160400  -9  420  SN1O RI1FJL +10

80m

UTC    dB Audio  Message
222245  +7 1604  LZ6C SN1O JO73
222300  -5 1604  SN1O LZ6C +16
222315 +15 1604  LZ6C SN1O R JO73
222330  -2 1604  SN1O LZ6C RR73
222345  +3 1604  LZ6C SN1O 73
222400  +1 1605  SN1O UA4FKT LO23
222400 +13 2403  SN1O DO9BAU JO62
222415  +6 1604  UA4FKT SN1O R JO73
222430  +6 1605  SN1O UA4FKT RR73
222430 +11 2402  SN1O DO9BAU JO62
222445 +12 1604  UA4FKT SN1O 73
222500  +9 2402  SN1O DO9BAU JO62
222515  +9 1604  DO9BAU SN1O R JO73
222530  +5 2402  SN1O DO9BAU RR73

40m

UTC    dB Audio  Message
165800  +5 2080  SN1O LX7I RR73
165815  -1 1658  M0CQL SN1O R JO73
165830 -22 1659  SN1O M0CQL IO93
165845  +1 1658  M0CQL SN1O R JO73
165915  -7 1658  CQ WW SN1O JO73
165930 -12 1656  SN1O OE8PIT JN66
165945  -1 1658  OE8PIT SN1O R JO73
170000 -12 1656  SN1O OE8PIT JN66
170215  -2 1659  IV3VFP SN1O R JO73
221700 -18 1782  SN1O OK1WCF JO80 (x2)
221930  +0 1500  SN1O EA5HM IM99
222000  -7  239  SN1O LU1AW FD58
222000  -5 1500  SN1O EA5HM RR73
222030  -7  239  SN1O LU1AW FD58

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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