IS0GQX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sardinia Most frequent locator attributed to this token: JM49

Receiver-side FT8 activity involving IS0GQX, decoded by SO8OO in southeastern Poland. 184 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-08-28.

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 184 FT8 messages attributed to IS0GQX as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (59%), followed by 10 m (27%) and 40 m (14%). Several six-hour UTC windows tied for the largest share (56%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

184

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 26 20m · 109 10m · 49

First attributed message: 2026-06-20
Last attributed message: 2026-08-28 08:41 UTC

Observed FT8 message patterns

Attributed sample: 184 messages
Active dates: 14 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -21 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 84.

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 IS0GQX in decoded directed-looking exchanges:

DU3JH · Philippines RC9WC · Asiatic Russia UA8Q · Asiatic Russia VK8SSB · Australia YB1EQI · Indonesia YD7OHC · Indonesia BA6KC · China BA7IWL · China BG7BMG · China BG7BVI · China BG8HNC · China BG9IDK · China

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 IS0GQX

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: JM49 · 111 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,535 km (approx.)
Last such locator decoded: 2026-08-28 08:40 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	IS0GQX S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-28 08:40	20m	-2 / -	JY5IB	- / -6	3	✓ Closing fragment
08-06 05:05	40m	- / -	9A4ZM	-13 / -	2	Partial capture
08-06 05:04	40m	- / -	OE5ROR	-16 / -	5	Partial capture
08-04 18:15	40m	-23 / -	JA7AUM	- / -20	2	Partial capture
08-04 18:02	40m	- / -	OZ1LDO	-13 / -	2	Partial capture
08-04 17:59	40m	- / -	UA3POG	-17 / -	2	Partial capture
08-04 17:36	40m	- / -	RA3THN	-19 / -	4	Partial capture
08-04 17:09	40m	- / -	S51PV	-16 / -	2	Partial capture
08-04 17:05	40m	- / -	9A4ZM	-9 / -	2	Partial capture
08-04 17:05	40m	- / +6	RA3THN	-19 / -	4	Partial capture
08-04 17:02	40m	- / -	RV6AVU	-9 / -	2	Partial capture
08-04 17:00	40m	- / -	RA3THN	-18 / -	4	Partial capture
08-04 16:56	40m	- / -19	R4MA	-14 / -	2	Partial capture
08-04 07:29	20m	- / -	TA4INO	-22 / -	2	Partial capture
08-04 06:04	40m	- / -	DL8TV	-14 / -	2	Partial capture
08-03 17:48	20m	- / -	F4HSB	-20 / -	2	Partial capture
08-03 17:47	20m	- / -	DF0KK	-6 / -	3	Partial capture
08-03 17:47	20m	- / -	DL3RAJ	-12 / -	5	Partial capture
08-03 10:22	20m	- / -	LZ2VQ	-17 / -	3	Partial capture
08-03 08:12	20m	- / -	EA3IZF	-14 / -	2	Partial capture
08-03 08:00	20m	- / -	9H4CM	-15 / -	2	Partial capture
08-03 07:57	20m	- / -	PA8S	-6 / -	2	Partial capture
08-03 07:57	20m	- / -	LZ2VQ	-20 / -	3	Partial capture
08-03 07:49	20m	- / -	DF3VX	-20 / -	2	Partial capture
08-03 07:49	20m	- / -	LZ2VQ	-18 / -	2	Partial capture
08-03 07:49	20m	- / +6	WJ2D	-12 / -	2	✓ Closing fragment
08-03 07:41	20m	- / -	LZ2VQ	-16 / -	2	Partial capture
08-03 07:34	20m	- / -	PD1ADA	-20 / -	7	Partial capture
08-03 07:31	20m	- / -	DG4YT	-20 / -	2	Partial capture
08-03 07:05	20m	- / -	PD3LKN	-18 / -	2	Partial capture
08-03 07:03	20m	- / -	G4CFS	-9 / -	2	Partial capture
08-03 06:51	20m	-23 / -	ZL4AT	- / -19	3	✓ Closing fragment
08-03 06:35	20m	- / -11	IS0KNG	-24 / -	4	Partial capture
07-31 08:33	10m	-9 / -	UA8Q	- / -8	2	✓ Closing fragment
07-31 08:27	10m	- / -	F6FHZ	-22 / -	4	Partial capture
07-31 08:23	10m	-9 / -	DU3JH	- / -15	2	✓ Closing fragment
07-21 17:47	20m	- / -	DK5DW	-9 / -	4	Partial capture
07-21 17:27	20m	-13 / -	BA7IWL	- / -18	2	✓ Closing fragment
07-21 17:25	20m	- / -	IU5HIU	-4 / -	2	Partial capture
07-21 17:23	20m	-8 / -	BH5HIE	- / -20	4	Partial capture
07-21 17:21	20m	-7 / -	BI4XDT	-6 / 0	4	✓ Closing observed
07-21 17:19	20m	-8 / -	VU3EXH	- / -8	2	Partial capture
07-21 17:18	20m	-10 / -	BG7BVI	- / -16	2	✓ Closing fragment
07-13 09:58	20m	- / -	LZ3CB	+4 / -	3	Partial capture
07-13 05:26	40m	- / -	SP3IPA	-11 / -	7	Partial capture
07-13 05:24	40m	- / -	HA3GX	-18 / -	2	Partial capture
07-13 05:19	40m	- / -	F1IQH	-16 / -	2	Partial capture
07-13 05:16	40m	- / -	9A4ZM	-7 / -	3	Partial capture
07-12 17:16	20m	-14 / -	RI0SP	- / -13	2	Partial capture
07-12 11:08	20m	- / -	EA1IOK	-12 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
174815 -11 2452  IS0GQX DL3RAJ JN68
174815  -6 2131  IS0GQX DF0KK JO31
174845 -20 1742  IS0GQX F4HSB JN37
174845 -10 2452  IS0GQX DL3RAJ JN68
174845 -11 2131  IS0GQX DF0KK JO31
174915 -15 2453  IS0GQX DL3RAJ JN68 (x2)
072915 -21 1447  IS0GQX TA4INO KM57 (x2)
075845 -18 1053  KQ4CIE IS0GQX RR73
064330 -22 2222  VK2GQR IS0GQX JM49
084030  -1 1759  JY5IB IS0GQX JM49 (x3)
084145 -12 2019  IS0GQX YO9PH +01

40m

UTC    dB Audio  Message
045830 -18 2226  CQ DX IS0GQX JM49 (x4)
050345 -24 1900  TJ1GD/P IS0GQX -18
050400 -17 1077  IS0GQX OE5ROR JN78 (x3)
050530 -15 1896  IS0GQX 9A4ZM JN86
050600 -13 1077  IS0GQX OE5ROR JN78
050600 -11 1896  IS0GQX 9A4ZM JN86
050630 -14 1077  IS0GQX OE5ROR JN78
051230 -10  630  CQ DX IS0GQX JM49 (x3)

10m

UTC    dB Audio  Message
082745 -21 2143  IS0GQX F6FHZ JN18 (x3)
083100 -12 2143  CQ DX IS0GQX JM49 (x2)
083330 -11 2144  UA8Q IS0GQX -08 (x2)
083430  -6 2142  BA7OWP IS0GQX R-18
083630  -2 2139  RC9WC IS0GQX 73
083700  -5 2139  CQ DX IS0GQX JM49 (x6)

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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