F4IFO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN29

Receiver-side FT8 activity involving F4IFO, decoded by SO8OO in southeastern Poland. 2,633 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-19.

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 2,633 FT8 messages attributed to F4IFO as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (79%), followed by 20 m (13%) and 10 m (5%). Most decodes (53%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

2,633

Messages attributed

UTC dates decoded

310

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 105 40m · 2,077 20m · 332 10m · 119

First attributed message: 2026-06-14
Last attributed message: 2026-09-19 07:32 UTC

Observed FT8 message patterns

Attributed sample: 2,633 messages
Active dates: 43 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -15 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 222, moderate (-15 to -9 dB) 843, strong (≥ -8 dB) 1,568.

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 F4IFO in decoded directed-looking exchanges:

BG2GWN · China ×2 EI4JFB · Ireland ×2 F4NGK · France ×2 MI0CBH · Northern Ireland ×2 AI4ZD · United States ×2 EH2PDA · Spain ×2 N8WGE · United States ×2 DN9DHG · Fed. Rep. of Germany HG0NPJ · Hungary II6WWA · Italy II9WWA · Sicily MI7RDK · Northern Ireland

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 F4IFO

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: JN29 · 1,902 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,206 km (approx.)
Last such locator decoded: 2026-09-19 07:32 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	F4IFO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 07:29	40m	-12 / -	N1UL	- / -	5	Partial capture
09-19 07:27	40m	-12 / -	KQ4FMX	- / -14	2	Partial capture
09-19 06:37	40m	-10 / -	EI2KZB	- / -21	5	✓ Closing fragment
09-19 06:15	40m	- / -8	DL1PAB	+6 / -	5	✓ Closing fragment
09-19 05:33	40m	-8 / -	ZL3IO	- / -	9	✓ Closing fragment
09-18 19:21	40m	-8 / -	JS2TFX	- / -	3	Partial capture
09-18 19:02	40m	- / 0	DG3BD	-7 / -	3	✓ Closing fragment
09-18 18:53	40m	-4 / -	SQ100PKP	- / -17	3	Partial capture
09-18 18:50	40m	-6 / -	II7IABB	- / -17	17	Partial capture
09-18 18:46	40m	-6 / -	SK150LM	- / -	7	Partial capture
09-18 18:38	40m	-7 / -	RI1FJZ	- / -	9	Partial capture
09-18 06:58	40m	-9 / -	KO3ZDE	- / -14	8	Partial capture
09-18 06:51	40m	-9 / -	G7HJX	- / -10	2	✓ Closing fragment
09-18 06:39	40m	- / -	OK3MB	-16 / -	2	Partial capture
09-18 06:26	40m	-9 / -	AA5R	- / -19	3	✓ Closing fragment
09-18 05:32	40m	-13 / -	N7QT	- / -16	5	Partial capture
09-18 05:24	40m	-2 / -	N7QT	- / -	2	Partial capture
09-18 04:39	40m	-2 / -	9Y4DG	- / -12	7	✓ Closing fragment
09-18 04:37	40m	-2 / -	W5RGO	- / -	2	Partial capture
09-18 04:23	40m	-5 / -	KX8XX	- / -11	10	✓ Closing fragment
09-18 04:15	40m	-3 / -	PY2DPM	- / -21	5	Partial capture
09-18 04:12	40m	0 / -	KE2CUR	- / -18	2	Partial capture
09-18 04:06	40m	+6 / -	KK4ISJ	-21 / -5	3	✓ Closing observed
09-18 03:55	40m	+4 / -	YN9H	- / -10	9	✓ Closing fragment
09-18 03:50	40m	-4 / -	WA8UET	- / -13	2	✓ Closing fragment
09-18 03:45	40m	-10 / -	EA1HTF	- / 0	2	✓ Closing fragment
09-18 03:43	40m	-2 / -	N4LKB	- / -18	2	✓ Closing fragment
09-18 03:39	40m	-1 / -	T46W	- / -	4	Partial capture
09-17 19:09	40m	- / -	PD1HBL	-6 / -	6	Partial capture
09-17 19:04	40m	-2 / -8	EA1RCW	-12 / -10	7	✓ Full exchange observed
09-17 18:52	40m	-2 / -	AM3MERCE	- / -	7	Partial capture
09-17 18:50	40m	-1 / -	R3KOW/M	- / -	5	Partial capture
09-17 16:43	40m	0 / -	MI9JGG	- / -	2	Partial capture
09-16 04:47	40m	-8 / -	KF4DGS	- / -19	3	✓ Closing fragment
09-16 04:34	40m	-18 / -	NE5TX	- / -	2	Partial capture
09-16 04:29	40m	-18 / -	K3HPA	- / -	2	✓ Closing fragment
09-15 07:37	40m	-13 / -	F4WFV	- / -14	3	✓ Closing fragment
09-15 07:23	40m	-9 / -	KJ5PTH	- / -	7	Partial capture
09-15 04:13	40m	- / -	US3EW	0 / -	2	Partial capture
09-14 20:00	40m	-6 / -5	RA3GZ	+6 / -6	4	✓ Full exchange observed
09-14 19:55	40m	+1 / -	TA7MMI	- / -	7	Partial capture
09-14 19:42	40m	+3 / -	UI6O	- / -22	4	Partial capture
09-14 19:18	40m	+5 / -	PE1JLZ	-6 / 0	7	✓ Closing observed
09-14 19:16	40m	0 / +5	HB9IIH	+4 / -23	8	✓ Full exchange observed
09-14 19:13	40m	-1 / -	HB0WR	-13 / -21	5	✓ Closing observed
09-14 18:43	40m	0 / -4	HB9ELE	+13 / -	3	Partial capture
09-14 05:48	40m	-14 / -	VP5/K5UR	- / -15	25	Partial capture
09-14 05:19	40m	-18 / -	VP5/K5UR	- / -	4	Partial capture
09-14 05:16	40m	-8 / -	II9IAGM	- / -	7	Partial capture
09-14 04:54	40m	- / -21	F4EGM	-13 / -	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
062000  -8 1012  WP4TUN F4IFO JN29
063715  -9 1012  EI2KZB F4IFO JN29 (x5)
064930 -12 1012  W6G F4IFO JN29 (x2)
072715 -14 1011  KQ4FMX F4IFO JN29 (x2)
072945 -11 1012  N1UL F4IFO JN29 (x5)

80m

UTC    dB Audio  Message
201345  -6 2380  F4IFO DK7TX 73
201400  -6  449  CQ F4IFO JN29
201415  -2  449  F4IFO DO1OAS -11 (x3)
201630  -7  449  DO1OAS F4IFO R-06 (x2)
201715 -21 1757  F4IFO DL9KM JN68
201730  -2  449  CQ F4IFO JN29
201745 -17 1757  F4IFO DL9KM JN68
201800  -3  449  CQ F4IFO JN29
201815 -15 1757  F4IFO DL9KM JN68
201830  -5  449  DL9KM F4IFO -10
201845  +2 2228  F4IFO PSEQSY
201915  +6 2228  F4IFO QRM RI1

20m

UTC    dB Audio  Message
180200  +5  470  BG5JGG F4IFO JN29 (x7)
181330  -9  470  BG5GEB F4IFO JN29 (x7)
191830  +5  470  BG4OOO F4IFO JN29

10m

UTC    dB Audio  Message
120415 -15 1339  EI7LK F4IFO JN29 (x7)
124545  -9 1020  DN9DHG F4IFO R-07 (x2)
125100  -9 1021  DF8DR F4IFO JN29 (x2)
093915 -15  859  CQ AS F4IFO JN29
094015 -16  859  EA5JLB F4IFO R-06
094700 -15  859  <...> F4IFO JN29 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee