XE1SWW — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Mexico Most frequent locator attributed to this token: EK19

Receiver-side FT8 activity involving XE1SWW, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-09-21.

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 52 FT8 messages attributed to XE1SWW as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (46%). Most decodes (100%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (73%); the estimated median was -12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

40m · 28 20m · 24

First attributed message: 2026-08-24
Last attributed message: 2026-09-21 05:23 UTC

Observed FT8 message patterns

Attributed sample: 52 messages
Active dates: 4 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -16 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 38, strong (≥ -8 dB) 8.

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 XE1SWW in decoded directed-looking exchanges:

I6PJC · Italy ×2 EA5HEU · Spain HP2NG · Panama IZ5SIH · Italy KC1UVP · United States M9PAS · England OH1ZE · Finland PR8ZX · Brazil R5DT · European Russia SV5BYP · Dodecanese UA1OIZ · European Russia UA3GIE · 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 XE1SWW

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: EK19 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 10,242 km (approx.)
Last such locator decoded: 2026-09-21 04:24 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	XE1SWW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 05:45	40m	- / -	SV2SKU	-15 / -	3	Partial capture
09-21 05:43	40m	- / -10	OE4BHF	0 / -	16	Partial capture
09-21 05:29	40m	- / -2	DK1MAX	+3 / -	2	✓ Closing fragment
09-21 05:29	40m	- / -	UT9NA	+2 / -	2	Partial capture
09-21 05:27	40m	- / -17	E75FM	-12 / -	2	✓ Closing fragment
09-21 05:24	40m	- / 0	IK4CBO	-4 / -	3	✓ Closing fragment
09-21 05:23	40m	- / -	RV9XV	-16 / -	2	Partial capture
09-21 05:22	40m	-22 / -15	DG1KDD	+14 / -1	6	✓ Full exchange observed
09-21 05:22	40m	- / -4	OT7K	+8 / -	2	✓ Closing fragment
09-21 04:50	40m	- / -	F5NBU	-4 / -	4	Partial capture
09-21 04:47	40m	-14 / -4	UA3AGW	-6 / +1	9	✓ Full exchange observed
09-21 04:46	40m	- / -3	DJ0MAB	-4 / -	4	✓ Closing fragment
09-21 04:46	40m	- / -	E70N	-10 / -	10	Partial capture
09-21 04:45	40m	- / -9	F4ELU	-9 / -	2	Partial capture
09-21 04:44	40m	- / -8	9A3AUH	+11 / -	5	✓ Closing fragment
09-21 04:44	40m	- / -	DL6LG	-10 / -	3	Partial capture
09-21 04:44	40m	- / -	IT9DDS	-7 / -	13	Partial capture
09-21 04:43	40m	-18 / -17	UR3AHB	+6 / -	5	✓ Closing observed
09-21 04:43	40m	- / -21	YO8RSL	-15 / -	2	Partial capture
09-21 04:43	40m	-16 / +1	F5MOO	+8 / -3	3	✓ Full exchange observed
09-21 04:42	40m	- / -	DL8TV	+2 / -	5	Partial capture
09-21 04:42	40m	- / -	UR9QQ	0 / -	5	Partial capture
09-21 04:41	40m	- / -	R6DZR	-6 / -	3	Partial capture
09-21 04:40	40m	-13 / +9	I6PJC	-13 / +3	4	✓ Full exchange observed
09-21 04:40	40m	- / -	R3RM	-1 / -	10	Partial capture
09-21 04:39	40m	- / -20	UR3AHB	+10 / -	4	Partial capture
09-21 04:37	40m	-13 / -	SV1NJW	-6 / -2	3	Partial capture
09-21 04:36	40m	- / -	R6DZR	-4 / -	2	Partial capture
09-21 04:36	40m	- / -16	RN1CW	-8 / -	9	✓ Closing fragment
09-21 04:34	40m	-14 / -25	PI4DX	0 / -5	14	✓ Full exchange observed
09-21 04:33	40m	- / -12	OH1CMV	-16 / -	2	Partial capture
09-21 04:33	40m	- / -	UR9QQ	+2 / -	4	Partial capture
09-21 04:33	40m	-12 / -	EW4DX	- / -3	2	✓ Closing fragment
09-21 04:32	40m	- / -	SV1NJW	-6 / -	3	Partial capture
09-21 04:30	40m	- / -9	UA3AKO	-2 / -	4	✓ Closing fragment
09-21 04:29	40m	-16 / -7	HB9RLZ	-1 / -	13	✓ Closing observed
09-21 04:29	40m	- / -	R3RM	-2 / -	16	Partial capture
09-21 04:29	40m	-12 / +1	PD8MD	+7 / -15	6	✓ Full exchange observed
09-21 04:28	40m	- / -	RN1CW	-14 / -	9	Partial capture
09-21 04:26	40m	-13 / -9	YO4NF	+9 / -3	4	✓ Full exchange observed
09-21 04:25	40m	- / -	I6PJC	-4 / -	2	Partial capture
09-21 04:23	40m	-12 / -3	4X1UF	-8 / -15	9	✓ Full exchange observed
09-13 03:17	40m	- / -22	RK6OZ	-16 / -	4	Partial capture
09-13 03:08	40m	- / -13	HK3W	-12 / -	5	✓ Closing fragment
09-13 03:07	40m	- / 0	D44TWO	-18 / -	2	✓ Closing fragment
09-04 02:32	40m	- / -2	IZ2ACM	-3 / -	3	✓ Closing fragment
09-04 02:32	40m	- / -	RU6CH	+6 / -	2	Partial capture
09-04 02:30	40m	- / -	EW8CW	-16 / -	8	Partial capture
09-04 02:29	40m	- / -	PC2J	+10 / -	3	Partial capture
09-04 02:24	40m	- / -	F6FHZ	-7 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
054500 -13  956  XE1SWW SV2SKU KN10
054515  -2 1041  XE1SWW OE4BHF -10
054530 -14  956  XE1SWW SV2SKU KN10
054545  +2 1041  XE1SWW OE4BHF -10
054600 -19  956  XE1SWW SV2SKU KN10
054615  +0 1041  XE1SWW OE4BHF -10 (x10)

20m

UTC    dB Audio  Message
042630 +15  379  XE1SWW RV6AJJ KN94 (x4)
004745 -14 2059  7Z1BQ XE1SWW EK19 (x7)
014730 -12  729  XE1SWW Z62NS +11 (x2)
012400 -12 2037  XE1SWW 9K2RT -08 (x2)

60m

UTC    dB Audio  Message
034030  +3 1204  XE1SWW SV2KD -15 (x4)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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