SQ3BYH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO82

Receiver-side FT8 activity involving SQ3BYH, decoded by SO8OO in southeastern Poland. 712 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-02.

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 712 FT8 messages attributed to SQ3BYH as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (37%), followed by 40 m (24%) and 20 m (22%). Most decodes (80%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

712

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

160m · 14 80m · 105 60m · 264 40m · 169 20m · 160

First attributed message: 2026-06-06
Last attributed message: 2026-09-02 21:56 UTC

Observed FT8 message patterns

Attributed sample: 712 messages
Active dates: 17 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -19 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 161, moderate (-15 to -9 dB) 316, strong (≥ -8 dB) 235.

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 SQ3BYH in decoded directed-looking exchanges:

PE1NPS · Netherlands ×3 HA1BF · Hungary ×2 LZ1ZF · Bulgaria ×2 F4BYA · France ×2 DL1UDO · Fed. Rep. of Germany ×2 HA7TM · Hungary ×2 DJ3HW · Fed. Rep. of Germany F5TMJ · France IK4RVY · Italy SV1CQN · Greece SV2CLJ · Greece TM2WWA · France

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 SQ3BYH

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 · 479 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 439 km (approx.)
Last such locator decoded: 2026-09-02 21:56 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	SQ3BYH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-02 21:54	60m	- / -19	SP5MXZ	-12 / -	11	Partial capture
09-02 21:53	60m	-8 / -	G3DXC	-3 / -15	4	✓ Closing observed
09-02 21:51	60m	-8 / -7	4O7CC	-8 / -23	5	✓ Full exchange observed
09-02 21:51	60m	- / -15	EA5IEZ	-18 / -	2	Partial capture
09-02 21:45	60m	-10 / -	EA5IEZ	- / -	2	Partial capture
09-02 21:43	60m	-11 / -	DC9GT	- / -	3	Partial capture
09-02 21:38	60m	-17 / -	F4LML	- / -23	4	Partial capture
09-02 21:35	60m	-14 / 0	OZ1LGJ	-10 / -10	5	✓ Full exchange observed
09-02 21:31	60m	-14 / +7	DL1MST	-4 / -18	6	✓ Full exchange observed
09-02 21:29	60m	-12 / -2	OM1AGE	-13 / -21	5	✓ Full exchange observed
09-02 21:22	60m	-13 / -	MM0HVU	- / -	13	Partial capture
09-02 21:21	60m	- / -	OM1AGE	-12 / -	5	Partial capture
09-02 21:17	60m	-12 / -3	DG2EBG	-11 / -15	4	✓ Full exchange observed
09-02 21:10	60m	-3 / -	DL8DTL	- / -	3	Partial capture
09-02 21:06	60m	-8 / -6	GW3TYI	-10 / -19	4	✓ Full exchange observed
09-02 21:01	60m	-8 / -	OZ1HPS	- / -15	6	✓ Closing fragment
09-02 20:59	60m	-4 / -	HA3FMR	+4 / -20	4	✓ Closing observed
09-02 20:55	60m	-9 / -15	IT9IVN	-2 / -16	8	✓ Full exchange observed
09-02 20:51	60m	-6 / +7	SP3QDM	+2 / -1	4	✓ Full exchange observed
09-02 20:49	60m	-10 / -19	GX1RAF	-5 / -5	7	✓ Full exchange observed
09-02 20:47	60m	-3 / -	GE7RTI	-10 / -13	3	✓ Closing observed
09-02 20:45	60m	-6 / -	DL1NEO	-1 / -9	4	✓ Closing observed
09-02 20:43	60m	-6 / -	DL9IU	- / -	2	Partial capture
09-02 20:42	60m	-4 / -	IK6HRB	- / -	3	Partial capture
09-02 20:40	60m	-6 / -	OT4R	-11 / -	2	✓ Closing observed
09-02 20:38	60m	-6 / -4	EA5S	-16 / -16	5	✓ Full exchange observed
09-02 20:35	60m	-7 / -6	YT7DX	+7 / -10	5	✓ Full exchange observed
09-02 20:33	60m	-6 / -	C31KC	- / -	4	Partial capture
09-02 20:31	60m	-4 / -	SP7ROM	-2 / -2	5	✓ Full exchange observed
09-02 20:29	60m	-2 / -8	DL3BH	-10 / -10	5	✓ Full exchange observed
09-02 20:28	60m	-5 / -10	HA7TM	+8 / -4	5	✓ Full exchange observed
09-02 20:26	60m	-4 / +4	DL6ZAJ	0 / -7	4	✓ Full exchange observed
09-02 20:23	60m	-5 / -10	G0AZH	-13 / -15	4	✓ Full exchange observed
09-02 20:21	60m	-9 / -	DL0PRL	- / -	4	Partial capture
09-02 20:20	60m	-9 / -5	F1IQH	-6 / -14	5	✓ Full exchange observed
09-02 20:18	60m	-6 / -1	ER3UA	+4 / -7	7	✓ Full exchange observed
09-02 20:17	60m	-4 / -	F1IQH	- / -	2	Partial capture
09-02 20:15	60m	-9 / -	GW4GJA	- / -23	4	✓ Closing fragment
09-02 20:12	60m	-4 / -	PC9N	-16 / -16	4	✓ Closing observed
09-02 20:12	60m	-4 / -3	SP5JMA	+8 / -9	4	✓ Full exchange observed
09-02 20:10	60m	-6 / -	ON7KEI	-13 / -11	3	✓ Closing observed
09-02 20:10	60m	-4 / -2	SP9UPH	+3 / -4	6	✓ Full exchange observed
09-02 20:07	60m	-9 / +5	DM3OA	-5 / -4	9	✓ Full exchange observed
09-02 20:06	60m	-12 / -	PC9N	- / -	2	Partial capture
09-02 20:04	60m	-8 / -4	DL1UDO	-4 / -7	4	✓ Full exchange observed
09-02 20:02	60m	-10 / -	GW4GJA	- / -	4	Partial capture
09-02 19:59	60m	-10 / -4	OZ9FF	-3 / -	3	✓ Closing observed
08-28 10:59	20m	- / -	CT1BFP	+1 / -	3	Partial capture
08-28 10:54	20m	- / -16	F1PPH	-6 / -	3	✓ Closing fragment
08-28 10:53	20m	- / -	EA1AEC	-2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
215430  -1  514  SQ3BYH G3DXC 73
215445  -7 1054  CQ SQ3BYH JO82
215500 -11 1053  SQ3BYH SP5MXZ -19
215515  -6 1054  CQ SQ3BYH JO82
215530 -12 1053  SQ3BYH SP5MXZ -19
215545 -11 1054  CQ SQ3BYH JO82
215600 -14 1053  SQ3BYH SP5MXZ -19
215615 -10 1054  CQ SQ3BYH JO82
215630 -12 1053  SQ3BYH SP5MXZ -19 (x7)

20m

UTC    dB Audio  Message
104330  -1 1224  SQ3BYH F5IXN JN23 (x4)
105030  +0 1288  SQ3BYH F1PSX JN08 (x2)
105330  -5 1288  SQ3BYH EA1AEC IN52 (x2)
105430  -8 1287  SQ3BYH F1PPH JN07 (x3)
105930  +4 1618  SQ3BYH CT1BFP IM59 (x4)

80m

UTC    dB Audio  Message
170045  -8 1211  TT1GD SQ3BYH JO82

10m

UTC    dB Audio  Message
150215  -4 2071  SQ3BYH IK4RVY RR73
172300 -14  953  SQ3BYH SV2CLJ -16 (x3)
154815  +5  637  SQ3BYH DJ3HW JO30 (x11)

40m

UTC    dB Audio  Message
213215 -14 1853  SQ3BYH IV3KQE R-13 (x2)
213315 -19 1321  SQ3BYH RD3FY -10
213315 -10  535  SQ3BYH OO0O JO11 (x3)
213445 -17 1321  SQ3BYH RD3FY RR73
213745  -7 1321  SQ3BYH YO6PNM KN25 (x3)
213915  -5  439  SQ3BYH IK4LZH JN54 (x2)
215045 -18 1275  SQ3BYH YL3RK -10 (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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