SQ3TR — 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: Poland Most frequent locator attributed to this token: JO82

Receiver-side FT8 activity involving SQ3TR, decoded by SO8OO in southeastern Poland. 2,845 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 42 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-04.

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 2,845 FT8 messages attributed to SQ3TR as the transmitting token by decoded message structure across 42 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (78%), followed by 60 m (13%) and 20 m (7%). Most decodes (78%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -3 dB.

Overview

2,845

Messages attributed

UTC dates decoded

260

Active 15-min windows

-3 dB

Estimated median S/N

Bands

80m · 48 60m · 360 40m · 2,224 20m · 213

First attributed message: 2026-06-07
Last attributed message: 2026-10-04 18:54 UTC

Observed FT8 message patterns

Attributed sample: 2,845 messages
Active dates: 42 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -12 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 110, moderate (-15 to -9 dB) 608, strong (≥ -8 dB) 2,127.

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 SQ3TR in decoded directed-looking exchanges:

IK4LZH · Italy ×3 PC2J · Netherlands ×3 SQ8V · Poland ×3 OM5JG · Slovak Republic ×3 9A3AUH · Croatia ×2 M7CWF · England ×2 DB1AD · Fed. Rep. of Germany ×2 DB5HA · Fed. Rep. of Germany ×2 DL1HKL · Fed. Rep. of Germany ×2 DL6BCL · Fed. Rep. of Germany ×2 DL6ZOG · Fed. Rep. of Germany ×2 DL7ARV · Fed. Rep. of Germany ×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 SQ3TR

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: JO82 · 1,566 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 439 km (approx.)
Last such locator decoded: 2026-10-04 18:50 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	SQ3TR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 20:05	40m	- / -18	9K2MP	-13 / -	2	✓ Closing fragment
10-04 19:48	40m	- / -5	MI0OBC	-1 / -	2	✓ Closing fragment
10-04 19:45	40m	- / -7	M0MLS	-12 / -	2	✓ Closing fragment
10-04 19:32	40m	- / -3	GI0VAB	-12 / -	2	✓ Closing fragment
10-04 19:27	40m	- / +2	DM1SV	+3 / -	2	✓ Closing fragment
10-04 19:23	40m	- / -11	RU3XW	-15 / -	3	✓ Closing fragment
10-04 19:06	40m	- / -18	UX7UU	-5 / -	3	✓ Closing fragment
10-04 19:03	40m	- / -7	DG1IAN	0 / -	2	✓ Closing fragment
10-04 18:59	40m	- / -1	PA0LDE	-2 / -	2	✓ Closing fragment
10-04 18:53	40m	-8 / -11	E75BO	-13 / -12	4	✓ Full exchange observed
10-04 18:51	40m	-10 / -6	F6FDY	-18 / -13	5	✓ Full exchange observed
10-04 18:25	60m	+2 / -3	DG4BZ	-1 / -11	6	✓ Full exchange observed
10-04 18:23	60m	0 / -7	G4HUE	0 / -8	5	✓ Full exchange observed
10-04 18:20	60m	+2 / 0	HA7UL	-5 / -8	5	✓ Full exchange observed
10-04 18:18	60m	0 / -	ON4MHZ	- / -	3	Partial capture
10-04 18:15	60m	-3 / -16	YU1EU	-8 / -8	4	✓ Full exchange observed
10-04 18:13	60m	-6 / -	G7RVH	- / -17	2	✓ Closing fragment
10-04 18:10	60m	-2 / -8	SV1QEW	-14 / -15	8	✓ Full exchange observed
10-04 18:09	60m	-4 / -7	IT9VCE	-4 / -12	7	✓ Full exchange observed
10-04 18:09	60m	-4 / +3	SQ2PHC	-5 / -3	5	✓ Full exchange observed
10-04 18:06	60m	-6 / +2	DH9DR	+4 / -5	5	✓ Full exchange observed
10-04 18:03	60m	-6 / +1	IK3/UY7LA	-11 / -10	2	Partial capture
10-04 18:01	60m	-8 / -	SV1EKI	-5 / -17	4	✓ Closing observed
10-04 17:58	60m	-10 / +3	OZ2LP	-7 / -6	2	Partial capture
10-04 17:53	60m	-11 / -12	OE3OOG	-2 / -	5	✓ Closing observed
10-04 17:53	60m	-12 / -	OH3MB	-4 / -2	5	✓ Full exchange observed
10-04 17:52	60m	-7 / -1	HF1Z	-7 / +2	5	✓ Full exchange observed
10-04 17:49	60m	-10 / -15	SV8NAJ	-17 / -18	9	✓ Full exchange observed
10-04 17:47	60m	-6 / -2	M1EPZ	0 / -7	5	✓ Full exchange observed
10-04 17:46	60m	-4 / -	IK2AQZ	-2 / -9	3	✓ Closing observed
10-04 17:45	60m	-7 / +10	SP9DWT	-12 / -	9	✓ Closing observed
10-04 17:43	60m	-7 / +1	DK7UY	+2 / -1	5	✓ Full exchange observed
10-04 17:42	60m	-7 / -6	IK1WGX	-13 / -15	5	✓ Full exchange observed
10-04 17:41	60m	-8 / 0	G7RHF	-4 / -13	3	✓ Full exchange observed
10-04 17:39	60m	-10 / -7	YO2MAX	+6 / -6	4	✓ Full exchange observed
10-04 11:06	40m	-12 / -	DD6UVO	-16 / -14	4	✓ Closing observed
10-04 11:04	40m	-10 / -	DK9EJ	-23 / -12	3	✓ Closing observed
10-04 11:02	40m	- / -	YU7AS	-13 / -	5	✓ Closing fragment
10-04 11:01	40m	-14 / -	IR8PR	- / -	2	Partial capture
10-04 11:00	40m	-14 / -	OE5ABL	-15 / -17	3	✓ Closing observed
10-04 10:58	40m	-10 / -	DD5DD	- / -22	2	✓ Closing fragment
10-04 10:57	40m	-10 / -	G4HUE	- / -18	2	✓ Closing fragment
10-04 10:56	40m	-12 / -5	YU7AS	-16 / -20	6	Partial capture
10-04 10:53	40m	-14 / -8	OK1ZJK	+8 / -5	6	✓ Full exchange observed
10-04 10:52	40m	-13 / -	PE1PGA	- / -	2	Partial capture
10-04 10:51	40m	-10 / -13	OZ9FF	-12 / +1	4	✓ Full exchange observed
10-04 10:48	40m	-14 / -	IU7GXL	- / -	2	Partial capture
10-04 10:47	40m	-12 / -	DL6KBV	- / -	2	Partial capture
10-04 10:45	40m	-12 / +6	HA1BF	-4 / -1	5	✓ Full exchange observed
10-04 10:41	40m	-8 / +5	PA3CPS	-19 / -4	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
190745  +1  952  SQ3TR UX7UU 73
192315 -16 2275  SQ3TR RU3XW KO84 (x3)
192745  +3 1030  SQ3TR DM1SV +02 (x2)
193215 -12 1945  SQ3TR GI0VAB -03 (x2)
194515 -10 1806  SQ3TR M0MLS -07 (x2)
194830  +2 2703  SQ3TR MI0OBC -05 (x2)
200000 -12  577  SQ3TR GM4ZTO -14
200500 -13 2041  SQ3TR 9K2MP R-18 (x2)

60m

UTC    dB Audio  Message
182300  +5  589  CQ SQ3TR JO82
182315  +2  953  SQ3TR G4HUE IO92
182330  +1  589  G4HUE SQ3TR -08
182345  -2  953  SQ3TR G4HUE R-07
182400  +0  589  G4HUE SQ3TR RR73
182415  +0  953  SQ3TR G4HUE 73
182500  -2  589  CQ SQ3TR JO82 (x2)
182545  +3  590  SQ3TR DG4BZ JO42 (x2)
182630  +1  589  DG4BZ SQ3TR -11
182645  -3  590  SQ3TR DG4BZ R-03
182700  +3  589  DG4BZ SQ3TR RR73
182715  -3  590  SQ3TR DG4BZ 73
182730  +5  589  CQ SQ3TR JO82

80m

UTC    dB Audio  Message
181500  -8  600  SQ3TR PC2J R-12
181500  +6 2205  SQ3TR IQ4JO JN63
181530 -17  601  SQ3TR PC2J 73
181530  -6 2205  SQ3TR IQ4JO JN63 (x3)
181715 -13  600  CQ SQ3TR JO82
181915 -10  601  LZ936BA SQ3TR JO82 (x2)
183800  +1 1103  SQ3TR DO1BOC -10 (x2)
195530 -14  216  SQ7SE SQ3TR JO82
195600 -13  216  CQ SQ3TR JO82 (x3)

20m

UTC    dB Audio  Message
204445  -2  269  CQ SQ3TR JO82 (x2)
210645  +7  519  SQ3TR DL3MN JN58 (x5)
211215 -17 2563  SQ3TR W2BCC FN21 (x8)

10m

UTC    dB Audio  Message
111445  -6 1299  SQ3TR DG2SAT 73
111515  -4  604  SQ3TR DJ3HW JO30 (x3)
111915 -10 2684  SQ3TR 9A3AUH -10 (x2)
112615 -15 1391  SQ3TR E70SZ JN84 (x3)
113115  -7 2383  SQ3TR E75W -08
113145 -23 1390  SQ3TR RN6MA -18
113145 -10 2383  SQ3TR E75W -08
113215 -20 1390  SQ3TR RN6MA -18
113515 -20 1066  SQ3TR DN9SHA JO31 (x2)

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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