F4GAJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: IN99

Receiver-side FT8 activity involving F4GAJ, decoded by SO8OO in southeastern Poland. 1,379 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 71 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-10.

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 1,379 FT8 messages attributed to F4GAJ as the transmitting token by decoded message structure across 71 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (26%), followed by 60 m (26%) and 20 m (26%). Most decodes (73%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16.6 dB.

Overview

1,379

Messages attributed

UTC dates decoded

263

Active 15-min windows

-16.6 dB

Estimated median S/N

Bands

80m · 117 60m · 359 40m · 182 20m · 356 10m · 365

First attributed message: 2026-06-07
Last attributed message: 2026-09-10 05:47 UTC

Observed FT8 message patterns

Attributed sample: 1,379 messages
Active dates: 71 UTC dates
Estimated median S/N: -16.6 dB
Estimated 10th-90th percentile: -23 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 792, moderate (-15 to -9 dB) 419, strong (≥ -8 dB) 168.

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 F4GAJ in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×2 IQ4JO · Italy ×2 YO5USA · Romania ×2 IK1MJK · Italy ×2 IK4LZH · Italy ×2 OZ5TD · Denmark ×2 SP2HJN · Poland ×2 YL3GAO · Latvia ×2 K1QD · United States ×2 BG0DLA · China ×2 DC7KM · Fed. Rep. of Germany ×2 LA9CAA · Norway

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 F4GAJ

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: IN99 · 1,002 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,633 km (approx.)
Last such locator decoded: 2026-09-10 05:47 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	F4GAJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 05:48	40m	- / -1	DG1ROL	-10 / -	3	✓ Closing fragment
09-10 05:30	40m	-15 / -	SP1ZMO	- / +10	2	✓ Closing fragment
09-10 04:55	60m	-21 / -	KE9I	- / -9	3	✓ Closing fragment
09-10 04:47	60m	- / 0	9A7BB	-4 / -	2	✓ Closing fragment
09-09 07:29	40m	- / -	F4BYA	-3 / -	3	Partial capture
09-09 07:25	40m	- / -	F4BYA	0 / -	3	Partial capture
09-09 06:14	40m	-16 / -	GM1SXW	-22 / -	4	✓ Closing observed
09-09 06:11	40m	-14 / -	SQ3IOE	-13 / -	2	✓ Closing observed
09-09 04:07	60m	- / -18	SV9AUP	-18 / -	2	✓ Closing fragment
09-09 03:55	60m	-10 / -	SM7/DL5BTE	- / -7	5	Partial capture
09-09 03:52	60m	-6 / -7	OH1IM	+2 / -	4	✓ Full exchange observed
09-09 03:45	60m	0 / -	KP4CC	- / -	3	Partial capture
09-09 03:42	60m	-7 / -	K1DC	- / -11	3	✓ Closing fragment
09-09 03:40	60m	-6 / -	KP4CC	- / -	2	Partial capture
09-08 04:45	60m	-17 / -	HA7BLT	- / -2	2	Partial capture
09-08 04:33	60m	-15 / -	N1MRE	- / 0	4	✓ Closing fragment
09-08 04:31	60m	-14 / +6	OM1CI	-19 / -	4	✓ Full exchange observed
09-08 04:29	60m	-12 / -	K1QD	- / -11	3	✓ Closing fragment
09-07 05:20	40m	- / -	F4BYA	+5 / -	3	Partial capture
09-07 05:17	40m	-14 / -	K0AJK	- / -15	2	✓ Closing fragment
09-07 05:16	40m	- / -	F4BYA	+5 / -	3	Partial capture
09-07 05:12	40m	-14 / -	WB3JSZ	- / +6	2	✓ Closing fragment
09-07 05:11	40m	-14 / -	KB9ZM	- / +6	2	✓ Closing fragment
09-07 05:09	40m	- / -	F4BYA	+1 / -	3	Partial capture
09-06 05:14	60m	-19 / +7	DG1KFR	-11 / +8	4	✓ Full exchange observed
09-06 05:06	60m	-18 / -	F4MXE	- / +6	2	✓ Closing fragment
09-06 05:02	60m	-24 / -	LA5LDX	- / -19	2	✓ Closing fragment
09-06 04:59	60m	-22 / -	LC2L/P	- / -3	3	✓ Closing fragment
09-06 04:57	60m	-18 / -	EA3RO	- / -16	2	✓ Closing fragment
09-06 04:55	60m	-20 / -	LA1KNX	- / -4	2	✓ Closing fragment
09-06 04:53	60m	-18 / -	EB4FOG	- / -6	2	✓ Closing fragment
09-06 04:50	60m	- / -	LA2W/P	-6 / -	2	Partial capture
09-05 05:14	60m	-15 / -13	YL3HI	+2 / -2	5	✓ Full exchange observed
09-05 05:13	60m	-15 / -	K1QD	- / -	2	Partial capture
09-05 05:04	60m	-20 / -	K1QD	- / -	3	Partial capture
09-05 05:01	60m	-18 / -15	SA3YTA	-14 / -19	10	✓ Full exchange observed
09-05 04:55	60m	-16 / -	KD3CLB	- / -	3	Partial capture
09-05 04:14	60m	-12 / -6	ER3UA	-4 / -5	5	✓ Full exchange observed
09-05 04:10	60m	-13 / -	AD9BX	- / -5	5	✓ Closing fragment
09-05 04:02	60m	-12 / -	KQ4EPK	- / -	5	✓ Closing fragment
09-04 04:02	80m	-14 / -	<...>	- / -3	2	Partial capture
09-04 03:57	80m	-19 / -11	OE9LWV	+6 / +2	5	✓ Full exchange observed
09-04 03:51	80m	-17 / -11	G8OO	+3 / +1	5	✓ Full exchange observed
09-04 03:50	80m	- / -	SP5ATA	+6 / -	4	Partial capture
09-04 03:37	80m	- / -	OK2UPG	+19 / -	4	Partial capture
09-04 03:37	80m	- / -3	SQ100PKP	+6 / -	2	Partial capture
09-04 03:32	80m	- / -10	OE5DML	-2 / -	2	✓ Closing fragment
09-04 03:30	80m	- / -4	ON4MAP	-24 / -	2	✓ Closing fragment
09-03 18:53	80m	-23 / -15	DO1WFW	-10 / -	3	✓ Closing observed
09-03 18:49	80m	- / -	DO1WFW	-11 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
051145 -18 2089  SM7TZK F4GAJ -07
051315 -18 2089  CQ F4GAJ IN99 (x4)
053015 -16 2239  SP1ZMO F4GAJ +10 (x2)
053215 -18 2239  CQ F4GAJ IN99 (x2)
053345 -20 2239  PV8AJ F4GAJ R-05
053445 -21 2239  CQ F4GAJ IN99                         a1
054700 -22 2238  ZL3TE F4GAJ IN99
054845  -8 2239  F4GAJ DG1ROL JN58 (x3)

60m

UTC    dB Audio  Message
040700 -19 1671  F4GAJ SV9AUP -18 (x2)
042115 -21 2033  EA8CZL F4GAJ IN99
042915 -20 1883  CQ F4GAJ IN99 (x6)
044700  -3 1285  F4GAJ 9A7BB +00 (x2)
045315 -24 1883  CQ F4GAJ IN99
045545 -22 1883  KE9I F4GAJ -09 (x3)

80m

UTC    dB Audio  Message
035115 -12 1403  G8OO F4GAJ +01
035130  +6 2139  F4GAJ SP5ATA KO02
035130  +3  515  F4GAJ G8OO R-11
035145 -22 1404  G8OO F4GAJ RR73
035200  +6 2139  F4GAJ SP5ATA KO02
035200  +3  515  F4GAJ G8OO 73
035215 -21 1404  CQ F4GAJ IN99
035715 -18 1404  OE9LWV F4GAJ IN99
035730  +5 1414  F4GAJ OE9LWV -11
035745 -21 1404  OE9LWV F4GAJ R+02
035800  +7 1414  F4GAJ OE9LWV RR73
035815 -19 1404  OE9LWV F4GAJ 73
040230 -14 1804  <...> F4GAJ IN99
040245 -11 1080  F4GAJ HB10GBT -12
040300 -14 1804  <...> F4GAJ R-03

10m

UTC    dB Audio  Message
071415 -23 1490  FK8HA F4GAJ IN99 (x7)
072345 -24 1487  VK6IR F4GAJ IN99
072515 -18 1487  CQ F4GAJ IN99 (x6)
073215 -13 2228  F4GAJ DK8ZZ JO30

20m

UTC    dB Audio  Message
044330 -20 2124  BG0DLA F4GAJ IN99 (x3)
044630 -24 2124  CQ F4GAJ IN99                         a1 (x9)
061845 -18 1275  OM1AMT F4GAJ -12 (x2)
065345 -21 2174  CQ F4GAJ IN99

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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