SM7XQW — 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: Sweden Most frequent locator attributed to this token: JO76

Receiver-side FT8 activity involving SM7XQW, decoded by SO8OO in southeastern Poland. 152 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 25 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-11-01.

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 152 FT8 messages attributed to SM7XQW as the transmitting token by decoded message structure across 25 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 20 m (28%) and 10 m (14%). Several six-hour UTC windows tied for the largest share (58%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

152

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

160m · 5 80m · 54 60m · 15 40m · 14 20m · 43 10m · 21

First attributed message: 2026-06-10
Last attributed message: 2026-11-01 07:04 UTC

Observed FT8 message patterns

Attributed sample: 152 messages
Active dates: 25 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 57.

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 SM7XQW in decoded directed-looking exchanges:

DK5UR · Fed. Rep. of Germany ×2 DO2RG · Fed. Rep. of Germany CT1END/P · Portugal M1DDD/P · England CT7AUT · Portugal DC2SF/P · Fed. Rep. of Germany DD3ZZ · Fed. Rep. of Germany DL6TNT/P · Fed. Rep. of Germany ER1CW · Moldova EU4BE · Belarus G4NKV/P · England LA8ENA · Norway

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 SM7XQW

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: JO76 · 73 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 858 km (approx.)
Last such locator decoded: 2026-11-01 06:49 UTC

Other locator fields attributed to this token: JO78 (31).

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	SM7XQW S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 06:49	40m	-23 / -	LX1RFJ	- / -	2	✓ Closing fragment
11-01 06:21	80m	- / -9	OS4K	-16 / -	3	Partial capture
11-01 06:20	80m	- / -9	DK5UR	-2 / -	2	✓ Closing fragment
10-31 20:33	160m	- / -1	DO2RG	-6 / -	2	✓ Closing fragment
10-31 06:05	60m	-12 / -	EA2EGI	- / -15	4	✓ Closing fragment
10-31 06:02	60m	- / -	F5MXH	-15 / -	5	Partial capture
10-31 06:02	60m	- / -	PE1NPS	+6 / -	3	Partial capture
10-31 06:01	60m	- / -3	PA4PA	+16 / -	2	✓ Closing fragment
10-29 20:48	80m	- / -11	DA1ST	+6 / -	2	✓ Closing fragment
10-23 16:48	40m	- / -	R2AL	+4 / -	3	Partial capture
10-23 16:48	40m	- / -	US2YW	+6 / -	3	Partial capture
10-17 14:24	40m	- / -6	YO9IBC	-2 / -	4	✓ Closing fragment
10-17 14:21	40m	- / -9	SP9NVY	-11 / -	6	✓ Closing fragment
10-17 12:57	40m	-22 / -3	PA3GHJ	-21 / -	3	Partial capture
10-17 04:05	160m	- / -	F6ECI	-9 / -	2	Partial capture
10-15 16:18	40m	-19 / -7	DD3ZZ	-10 / -19	7	✓ Full exchange observed
10-04 12:26	40m	- / -	R1AV	-16 / -	3	Partial capture
09-26 18:47	80m	- / -15	EU1AFX	-2 / -	4	Partial capture
09-26 07:03	40m	- / -17	LA8ENA	-18 / -	2	✓ Closing fragment
09-25 11:29	40m	- / -14	OE3FVU	-11 / -	3	✓ Closing fragment
09-25 11:26	40m	- / -8	OM5ALL	-18 / -	2	Partial capture
09-18 19:16	80m	- / -14	DD8BA	-10 / -	3	✓ Closing fragment
09-18 18:57	80m	- / -	DO2XB	+12 / -	2	Partial capture
09-18 18:56	80m	-9 / -6	YL2IV	+8 / -	5	✓ Closing observed
09-18 18:55	80m	-14 / -10	SP9WAZ	+17 / -	4	✓ Closing observed
09-18 18:53	80m	- / -8	OZ2LC	-5 / -	3	✓ Closing fragment
09-18 18:53	80m	- / -	DO2ANW	-1 / -	9	Partial capture
09-18 18:40	80m	-12 / -20	SQ8GBG	+16 / +6	7	✓ Full exchange observed
09-18 18:39	80m	- / -18	RA2FU	-3 / -	3	Partial capture
09-06 16:42	40m	-17 / -	G4NKV/P	-15 / -7	3	✓ Closing observed
09-04 09:55	40m	- / -18	DC2SF/P	-19 / -	3	✓ Closing fragment
09-04 06:01	40m	- / +5	DK5UR	+6 / -	2	✓ Closing fragment
08-30 07:23	20m	- / -8	4O4DB	-11 / -	3	Partial capture
08-30 05:15	80m	-13 / -	AB2E	- / -	9	Partial capture
08-30 05:13	80m	-10 / -	VP2MAA	- / -	2	Partial capture
08-30 05:09	80m	-13 / -	AB2E	- / -	2	Partial capture
08-30 05:03	80m	-21 / -7	SM7TZK	-21 / -	3	✓ Closing observed
08-14 04:14	80m	0 / -	GB8VJ	- / +3	2	✓ Closing fragment
08-14 04:07	80m	-6 / -	9A4BP/P	- / -	3	Partial capture
08-12 13:44	20m	-14 / +2	SQ9M	-7 / -5	3	Partial capture
08-12 04:41	40m	- / -	US2YW	+3 / -	3	Partial capture
08-10 20:28	80m	-16 / -	SA3SWE	- / -	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
142500  -1 1122  SM7XQW YO9IBC -06 (x3)
164800  -7 1797  SM7XQW EU4BE RR73
164830  +3 1797  SM7XQW US2YW KN28
164830  +5 1451  SM7XQW R2AL KO85
164900  +8 1797  SM7XQW US2YW KN28
164900  +9 1452  SM7XQW R2AL KO85
164930  +7 1797  SM7XQW US2YW KN28
164930  -2 1452  SM7XQW R2AL KO85
093715 -13  959  SM7XQW HB9HJI -15
093915  -5 2832  SM7XQW DL1BBO JO43
064915 -22 1893  LX1RFJ SM7XQW JO76 (x2)
070445 -13 1458  CT7AUT SM7XQW 73

80m

UTC    dB Audio  Message
192245  -1 1155  SM7XQW DB100FT R-09
184645  -7 1504  SM7XQW DO6MFD RR73
184715  +0 1247  SM7XQW EU1AFX KO43 (x4)
185230 -24 1752  SM7XQW LA4VUA -14
034515  -5 1504  S55X SM7XQW JO76
204815  +6  750  SM7XQW DA1ST R-11 (x2)
062015  -1  505  SM7XQW DK5UR -09 (x2)
062145 -18 1799  SM7XQW OS4K -09 (x3)

160m

UTC    dB Audio  Message
040330 -16  691  CQ SM7XQW JO76 (x2)
040515  -9 1959  SM7XQW F6ECI JN05 (x2)
203130 -16  900  CQ SM7XQW JO76                        a1 (x2)
203315  -4 1852  SM7XQW DO2RG R-01 (x2)
203630  -9  900  CQ SM7XQW JO76

60m

UTC    dB Audio  Message
060130 +15  450  SM7XQW PA4PA -03 (x2)
060230  +6 2487  SM7XQW PE1NPS JO22
060230 -15 1483  SM7XQW F5MXH JN07
060300  +6 2487  SM7XQW PE1NPS JO22
060300 -11 1484  SM7XQW F5MXH JN07
060330  +5 2487  SM7XQW PE1NPS JO22
060330 -16 1484  SM7XQW F5MXH JN07 (x3)
060545 -14  656  EA2EGI SM7XQW JO76 (x4)

20m

UTC    dB Audio  Message
134115 -10  671  SM7XQW IZ7QDZ -14
134400 -15  674  F5NIB SM7XQW -10
162645 -18 1007  SM7XQW M1DDD/P RR73
134445 -14 1281  SQ9M SM7XQW JO76
134500  -7 1280  SM7XQW SQ9M +02
134515 -13 1281  SQ9M SM7XQW R-05
134530 -14 1280  SM7XQW RR73; DL2EMU <...> +00
184645 -20 1482  SM7XQW CT1END/P RR73 (x2)
072345 -10 1470  SM7XQW 4O4DB JN92 (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.

CW

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

Explore CW reception at SO8OO

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