GX3SBL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO82

Receiver-side FT8 activity involving GX3SBL, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-23 and 2026-07-25.

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 8 FT8 messages attributed to GX3SBL as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

40m · 8

First attributed message: 2026-07-23
Last attributed message: 2026-07-25 23:05 UTC

Observed FT8 message patterns

Attributed sample: 8 messages
Active dates: 2 UTC dates
Estimated median S/N: -20 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with GX3SBL in decoded directed-looking exchanges:

RN6MA · European Russia DC1OA · Fed. Rep. of Germany DH0GBC · Fed. Rep. of Germany DK7ZT · Fed. Rep. of Germany DL1UDO · Fed. Rep. of Germany IQ4JO · Italy LZ3CB · Bulgaria OE6MDF · Austria OE6TNO · Austria OK1TRJ · Czech Republic PE1NPS · Netherlands R2EA · European Russia

Most frequent locator attributed to GX3SBL

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: IO82 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,741 km (approx.)
Last such locator decoded: 2026-07-23 23:42 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	GX3SBL S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-26 08:51	40m	- / -10	DC1OA	-16 / -	2	✓ Closing fragment
07-26 08:31	40m	- / -13	OE6MDF	-10 / -	2	✓ Closing fragment
07-26 08:00	40m	- / -	OE5ROR	-13 / -	7	Partial capture
07-26 07:48	40m	- / -12	SP9MRP	-18 / -	3	✓ Closing fragment
07-26 07:41	40m	- / 0	SP9MRP	-14 / -	3	Partial capture
07-26 07:23	40m	- / -	SP9UPH	-7 / -	4	Partial capture
07-26 07:11	40m	- / -	OE6TNO	-13 / -	7	✓ Closing fragment
07-26 06:57	40m	- / -	OE6TNO	-10 / -	4	Partial capture
07-26 06:45	40m	- / -	UT4PA	-5 / -	5	Partial capture
07-26 06:29	40m	- / -	DL6UM	-8 / -	2	Partial capture
07-26 06:19	40m	- / -	SQ3PMX	-24 / -	2	Partial capture
07-26 06:16	40m	- / -	OK1WE	-8 / -	4	Partial capture
07-26 05:47	40m	- / -	OE5ROR	-6 / -	5	Partial capture
07-26 05:33	40m	- / -3	DG5AAG	-12 / -	2	Partial capture
07-25 22:57	40m	- / -10	LZ3CB	+3 / -	3	✓ Closing fragment
07-25 22:56	40m	- / -2	DL1UDO	-13 / -	2	✓ Closing fragment
07-25 22:47	40m	- / -	R6FX	-19 / -	3	Partial capture
07-25 22:46	40m	- / -12	R2EA	-8 / -	2	✓ Closing fragment
07-24 06:45	40m	- / 0	DA1ST	-19 / -	2	Partial capture
07-23 23:30	40m	-18 / -	OK1TRJ	- / -	3	✓ Closing fragment
07-23 23:24	40m	-20 / -	KP4LCA	- / +1	2	Partial capture
07-23 23:10	40m	- / -12	IQ4JO	0 / -	3	✓ Closing fragment
07-23 18:01	40m	- / -9	IQ4JO	+5 / -	3	Partial capture
07-23 17:05	40m	- / -15	PE1NPS	-13 / -	3	✓ Closing fragment
07-23 17:03	40m	- / -15	DH0GBC	-18 / -	5	✓ Closing fragment
07-23 13:08	20m	- / -18	RN6MA	-18 / -	2	✓ Closing fragment
07-23 13:06	20m	- / -17	DK3HV	-12 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
074330 -16 2124  GX3SBL SP9MRP R+00 (x4)
080045  -8 1054  GX3SBL OE5ROR JN78 (x7)
083145 -10  772  GX3SBL OE6MDF -13 (x2)
085115 -16  860  GX3SBL DC1OA R-10 (x2)

20m

UTC    dB Audio  Message
130600 -10 1460  GX3SBL DK3HV JO31 (x4)
130830 -17 1460  GX3SBL RN6MA -18 (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.

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