G5GDX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO80

Receiver-side FT8 activity involving G5GDX, decoded by SO8OO in southeastern Poland. 511 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-09-01.

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 511 FT8 messages attributed to G5GDX as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (99%), followed by 20 m (1%). Most decodes (60%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

511

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 506 20m · 5

First attributed message: 2026-08-26
Last attributed message: 2026-09-01 21:52 UTC

Observed FT8 message patterns

Attributed sample: 511 messages
Active dates: 3 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -16 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 66, moderate (-15 to -9 dB) 300, strong (≥ -8 dB) 145.

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 G5GDX in decoded directed-looking exchanges:

IK1MJK · Italy ×4 RU3OZ · European Russia ×2 SP5DUJ · Poland ×2 SV1EKI · Greece ×2 US2YW · Ukraine ×2 WB8SCG · United States ×2 EA5KV · Spain IQ4JO · Italy IU5HIU · Italy 4O4DB · Montenegro 9A4ZM · Croatia DA1ST · Fed. Rep. of Germany

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 G5GDX

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: IO80 · 292 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,757 km (approx.)
Last such locator decoded: 2026-09-01 21:52 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	G5GDX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 10:24	40m	- / -	DL6REX	-20 / -	2	Partial capture
09-08 10:18	40m	- / -	PB5DX	-20 / -	2	✓ Closing fragment
09-08 09:58	40m	- / -	ON5HE	-11 / -	4	✓ Closing fragment
09-01 21:51	40m	-10 / -	SO5WD	- / -14	2	✓ Closing fragment
09-01 21:49	40m	-9 / 0	DH1KJ	+4 / +8	5	✓ Full exchange observed
09-01 21:47	40m	-12 / +3	PC2J	-3 / -	5	✓ Full exchange observed
09-01 21:43	40m	-12 / -12	M9SDD	-18 / +3	5	✓ Full exchange observed
09-01 21:41	40m	-7 / -	GM5DNA	-19 / +4	3	✓ Closing observed
09-01 21:34	40m	-11 / -	CT7ATA	- / -5	4	Partial capture
09-01 21:30	40m	-9 / -12	R3SN	-14 / -15	4	✓ Full exchange observed
09-01 21:29	40m	-9 / -	MM0DXL	- / -2	2	✓ Closing fragment
09-01 21:25	40m	- / -6	UR1CCT	+12 / -	3	✓ Closing fragment
09-01 21:24	40m	-9 / -	PE1KVH	-13 / +3	5	✓ Full exchange observed
09-01 21:22	40m	-12 / -	EA7AK	- / -7	2	✓ Closing fragment
09-01 21:18	40m	-11 / -15	SV1EKI	-9 / -15	9	✓ Full exchange observed
09-01 21:17	40m	-10 / -	F1HSY	- / -9	2	✓ Closing fragment
09-01 21:14	40m	-6 / -	EA1HWP	- / -16	2	✓ Closing fragment
09-01 21:12	40m	-10 / +6	PA2KV	-7 / +3	5	✓ Full exchange observed
09-01 21:10	40m	-12 / -11	IW1PPB	-14 / -1	4	✓ Full exchange observed
09-01 21:06	40m	-10 / -	DH4BM	-16 / -9	3	✓ Closing observed
09-01 21:03	40m	-9 / -	PY5QW	- / -17	5	✓ Closing fragment
09-01 21:02	40m	-10 / -	SP6SR	- / -2	2	✓ Closing fragment
09-01 20:57	40m	-8 / -15	RA3RDN	+1 / -9	4	✓ Full exchange observed
09-01 20:55	40m	-10 / -10	R4HNT	-8 / -12	4	✓ Full exchange observed
09-01 20:52	40m	-10 / -	G0SGR	- / +4	4	Partial capture
09-01 20:50	40m	-10 / -	ON6DL	- / -7	3	Partial capture
09-01 20:46	40m	-10 / -1	DF4FS	-7 / -10	5	✓ Full exchange observed
09-01 20:39	40m	-10 / -	G0SGR	-14 / +8	5	Partial capture
09-01 20:29	40m	- / +7	MW3FLI	-4 / -	2	✓ Closing fragment
09-01 20:23	40m	-12 / +4	OE5ROR	+8 / +3	6	✓ Full exchange observed
09-01 20:07	40m	- / +8	DF3QL	-6 / -	2	Partial capture
09-01 20:00	40m	- / -19	UB6OCP	-5 / -	4	✓ Closing fragment
09-01 19:57	40m	-12 / -	PF1B	-9 / -6	3	✓ Closing observed
09-01 19:55	40m	-12 / -	HG8IT	- / -	4	✓ Closing fragment
09-01 19:49	40m	- / -16	IK1MJK	-9 / -	3	✓ Closing fragment
09-01 19:46	40m	- / -6	PD1LVK	-5 / -	3	✓ Closing fragment
09-01 19:43	40m	- / -6	DH1JAD	-4 / -	3	✓ Closing fragment
09-01 19:37	40m	- / -2	DK7ZT	-4 / -	3	✓ Closing fragment
09-01 19:29	40m	- / -13	4O4DB	-10 / -	5	✓ Closing fragment
09-01 19:28	40m	-12 / -	DL4RY	-6 / -3	4	✓ Closing observed
09-01 19:10	40m	- / -	SP9CVY	-4 / -	2	✓ Closing fragment
09-01 19:07	40m	- / +5	G8WIL	-10 / -	2	✓ Closing fragment
09-01 18:55	40m	- / -	DM5CM	-8 / -	2	Partial capture
09-01 18:54	40m	- / +8	DG6ITP	-6 / -	3	✓ Closing fragment
09-01 18:34	40m	- / -9	PA2REH	-4 / -	4	✓ Closing fragment
09-01 18:30	40m	- / -	M0LRY	-7 / -	3	✓ Closing fragment
09-01 18:28	40m	- / +1	G7IGC	-6 / -	2	Partial capture
09-01 18:18	40m	-14 / -	M0PEL	- / -2	2	✓ Closing fragment
09-01 18:15	40m	-15 / -	R1BDX	-8 / -12	4	✓ Closing observed
09-01 18:13	40m	-14 / -17	IK1MJK	-8 / -8	4	✓ 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
215000  -9  862  DH1KJ G5GDX +08
215015  +3  434  G5GDX DH1KJ R+00
215030  -9  862  DH1KJ G5GDX RR73
215045  +0  434  G5GDX DH1KJ 73
215100  -9  862  SO5WD G5GDX -14 (x2)
215200 -10  862  CQ G5GDX IO80
095845 -11  681  G5GDX ON5HE JO20 (x4)
101815 -19 2065  G5GDX PB5DX R+13 (x2)
102445 -19 2214  G5GDX DL6REX JO40 (x2)

60m

UTC    dB Audio  Message
004130  -4  477  G5GDX US2YW KN28 (x3)
013300 -13  850  G5GDX OH7FES KP53

20m

UTC    dB Audio  Message
175700  +6 2991  G5GDX IU5HIU R-19 (x3)
175830  -4 2542  G5GDX IQ4JO JN63 (x3)
182445 -18  929  CQ G5GDX IO80                         a1
182600 -11  927  G5GDX EA7DNE R-18
184415 -11  929  CQ G5GDX IO80 (x3)
185400 -10  929  G5GDX EA7FMT IM67
190315 -14  929  CQ G5GDX IO80
193630 -22 1766  G5GDX VE3NVK R-19
201500  -4 1830  G5GDX EA5KV RR73

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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