F4MJX — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: IN88

Receiver-side FT8 activity involving F4MJX, decoded by SO8OO in southeastern Poland. 303 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-11-06.

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 303 FT8 messages attributed to F4MJX as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (56%), followed by 40 m (34%) and 20 m (11%). Several six-hour UTC windows tied for the largest share (65%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (80%); the estimated median was -19.8 dB.

Overview

303

Messages attributed

UTC dates decoded

Active 15-min windows

-19.8 dB

Estimated median S/N

Bands

60m · 169 40m · 102 20m · 32

First attributed message: 2026-06-20
Last attributed message: 2026-11-06 03:11 UTC

Observed FT8 message patterns

Attributed sample: 303 messages
Active dates: 24 UTC dates
Estimated median S/N: -19.8 dB
Estimated 10th-90th percentile: -24 to -13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 241, moderate (-15 to -9 dB) 55, strong (≥ -8 dB) 7.

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 F4MJX in decoded directed-looking exchanges:

F4DIA · France ×3 OT7K · Belgium ×3 DB5HA · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 F1PBZ · France ×2 II5GG · Italy ×2 PC6A · Netherlands ×2 SQ9EJ · Poland ×2 DA1ST · Fed. Rep. of Germany OE8RPK · Austria 9A4AA · Croatia DC6MT · 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 F4MJX

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: IN88 · 208 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,799 km (approx.)
Last such locator decoded: 2026-11-06 03:11 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	F4MJX S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-07 11:49	40m	- / -	PD7BDN	-8 / -	2	✓ Closing fragment
11-07 11:40	40m	- / -16	DL40EUDXF	-11 / -	3	Partial capture
11-07 11:34	40m	- / -16	OZ9FF	-16 / -	2	✓ Closing fragment
11-07 07:24	40m	- / -	DD1OO	-13 / -	6	Partial capture
11-06 02:17	40m	- / -8	KI8JP	-12 / -	2	✓ Closing fragment
11-05 17:45	40m	- / -9	DL6UM	-7 / -	4	✓ Closing fragment
11-05 17:35	40m	- / -	DL6UM	-8 / -	3	Partial capture
11-05 17:05	40m	- / -9	M0IEP	-12 / -	6	✓ Closing fragment
11-05 16:50	40m	- / -2	F1UFX	-15 / -	2	✓ Closing fragment
11-05 16:43	40m	- / -11	DL1BBO	-3 / -	4	✓ Closing fragment
11-05 16:29	40m	- / -8	F5MKD	-1 / -	3	✓ Closing fragment
11-05 16:22	40m	- / -	HB9ZHK	-18 / -	2	Partial capture
11-05 16:16	40m	- / -	DK7KP	-14 / -	2	Partial capture
11-05 15:52	40m	- / -7	PA2KV	-1 / -	2	✓ Closing fragment
11-05 15:45	40m	- / -	PA2KV	-5 / -	3	Partial capture
11-05 14:12	40m	- / -5	DF7NO	-7 / -	11	✓ Closing fragment
11-05 13:21	40m	- / -12	PC6A	-10 / -	3	✓ Closing fragment
11-05 03:20	40m	- / -22	4X1UF	-12 / -	9	Partial capture
11-04 03:11	40m	- / -15	F1PBZ	+4 / -	4	✓ Closing fragment
11-04 03:08	40m	- / -	IU2THY	+4 / -	3	Partial capture
11-04 02:58	40m	- / -17	UA3GDJ	-4 / -	3	✓ Closing fragment
11-04 02:54	40m	- / -19	TC8TR	-6 / -	2	✓ Closing fragment
11-04 02:46	40m	- / -8	DL9KM	-16 / -	2	✓ Closing fragment
11-04 02:35	40m	- / -30	DL3MIB	+3 / -	13	Partial capture
11-03 15:59	40m	- / -21	DL7ACA	-3 / -	6	✓ Closing fragment
11-03 15:50	40m	- / -18	IK2YCW	-4 / -	2	Partial capture
11-03 14:39	40m	- / -4	DL1CC	-6 / -	5	✓ Closing fragment
11-03 11:43	40m	- / -15	F5PSI	-7 / -	12	✓ Closing fragment
11-03 11:35	40m	- / -3	F5PSI	-15 / -	2	Partial capture
11-03 07:20	60m	- / -9	PC6A	-5 / -	3	✓ Closing fragment
11-03 07:08	60m	- / -9	DL1ZU	-14 / -	3	✓ Closing fragment
11-03 06:49	60m	- / -3	DF1KG	-10 / -	5	✓ Closing fragment
11-03 06:44	60m	- / -16	F4ESO	-9 / -	6	✓ Closing fragment
11-03 06:35	60m	- / +7	OE8PIT	+7 / -	3	✓ Closing fragment
11-03 06:33	60m	- / -10	EA5BM	-20 / -	2	✓ Closing fragment
11-03 06:11	40m	- / -9	IW3IEH	-6 / -	2	✓ Closing fragment
11-03 05:37	40m	- / -12	EA5D	-18 / -	2	Partial capture
11-03 05:25	40m	- / -	DL3MIB	-2 / -	6	Partial capture
11-03 05:12	40m	- / -10	SV5BYP	-12 / -	4	✓ Closing fragment
11-01 05:43	80m	- / -19	SQ2RAD	-6 / -	2	Partial capture
11-01 05:41	80m	- / -15	DL8TV	+14 / -	2	✓ Closing fragment
11-01 05:17	80m	- / -15	9A4ZM	+6 / -	3	✓ Closing fragment
11-01 05:14	80m	- / -10	S50XX	+6 / -	7	✓ Closing fragment
11-01 05:06	80m	- / -	SQ9EJ	-17 / -	10	✓ Closing fragment
11-01 05:04	80m	- / -14	DJ6OI	+12 / -	2	✓ Closing fragment
11-01 05:00	80m	- / -6	CU2DX	-2 / -	2	Partial capture
10-31 20:05	80m	- / -22	RW1CW	-8 / -	4	Partial capture
10-26 08:22	60m	- / -1	DL8DCM	-11 / -	2	✓ Closing fragment
10-26 07:13	60m	- / -15	DM5KM	-6 / -	4	Partial capture
10-26 07:12	60m	- / -22	DG6TOM	-17 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
072415 -10 1530  F4MJX DD1OO JN49 (x6)
074315 -14 1364  F4MJX PD7BDN JO22
113415 -15 2317  F4MJX OZ9FF -16 (x2)
114045 -14 1666  F4MJX DL40EUDXF -16 (x3)
114915  -8  615  F4MJX PD7BDN JO22 (x2)
124915 -22 1748  F4MJX PD4SN -17

60m

UTC    dB Audio  Message
064500  -8 1450  F4MJX F4ESO 73 (x4)
064930 -10 1766  F4MJX DF1KG JO32 (x5)
070830 -12 1858  F4MJX DL1ZU JO40 (x3)
072030  -4 1152  F4MJX PC6A JO21 (x3)

80m

UTC    dB Audio  Message
051400  +6 1050  F4MJX S50XX JN65 (x6)
051700  +8 1047  F4MJX 9A4ZM JN86
051730 +11 1050  F4MJX S50XX 73
051800  +8 1046  F4MJX 9A4ZM R-15 (x2)
051900 -19 1454  F4MJX EA5D JN00
054130 +13 2177  F4MJX DL8TV -15 (x2)
054330  -4 1071  F4MJX SQ2RAD -19 (x2)

20m

UTC    dB Audio  Message
125830 -23 1501  DA1ST F4MJX 73
164215 -21 1529  OE8RPK F4MJX 73
171930  -7 1531  EA7R F4MJX IN88

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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