F4FFZ — 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: IN87

Receiver-side FT8 activity involving F4FFZ, decoded by SO8OO in southeastern Poland. 116 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 10 UTC dates in the available aggregate history. Observed between 2026-08-27 and 2026-11-01.

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 116 FT8 messages attributed to F4FFZ as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (69%), followed by 160 m (26%) and 40 m (5%). Most decodes (82%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.

Overview

116

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 30 80m · 80 40m · 6

First attributed message: 2026-08-27
Last attributed message: 2026-11-01 06:18 UTC

Observed FT8 message patterns

Attributed sample: 116 messages
Active dates: 10 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -16 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 79.

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 F4FFZ in decoded directed-looking exchanges:

4O7CC · Montenegro 9H1ES · Malta C37AC · Andorra E74K · Bosnia-Herzegovina F4FSY · France MD0CCE · Isle of Man OH3JF · Finland OZ2LIN · Denmark OZ6FH · Denmark PA3DUU · Netherlands OA4ENG · Peru 5P1KZX · Denmark

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 F4FFZ

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: IN87 · 58 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,830 km (approx.)
Last such locator decoded: 2026-11-01 06:14 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	F4FFZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 06:16	80m	-6 / -	WB8YJF	- / -3	2	✓ Closing fragment
11-01 06:16	80m	- / -	EA1IOK	-10 / -	5	Partial capture
11-01 06:16	80m	- / -	PE1NPS	-8 / -	3	Partial capture
11-01 06:14	80m	-1 / -	VE2CKW	- / -8	3	✓ Closing fragment
10-31 07:14	40m	-6 / -	FK8HC	- / -	2	Partial capture
10-30 20:48	160m	-11 / -	DO3VE	- / -19	3	Partial capture
10-30 20:41	160m	-16 / -	HA5OV	- / -	6	Partial capture
10-30 18:11	160m	- / -25	OZ6FH	-8 / -	5	✓ Closing fragment
10-30 18:10	160m	- / +3	MD0CCE	-4 / -	2	✓ Closing fragment
10-28 20:02	160m	-17 / -13	E74K	+10 / -13	7	✓ Full exchange observed
10-28 19:56	160m	- / -7	F4FSY	-7 / -	3	✓ Closing fragment
10-28 19:54	160m	-5 / -16	4O7CC	-2 / -	4	✓ Closing observed
10-26 20:05	160m	-21 / -	OH3JF	- / -15	3	✓ Closing fragment
10-10 05:40	40m	- / -2	IK4TVP	-16 / -	2	Partial capture
10-10 05:38	40m	+6 / -	OA4ENG	- / -10	3	✓ Closing fragment
10-10 00:34	80m	- / -19	EA5HM	-9 / -	3	Partial capture
10-10 00:33	80m	-8 / -	VO1HP	- / -	3	Partial capture
10-10 00:28	80m	-4 / +10	F5OYA/P	-14 / -1	7	✓ Full exchange observed
10-10 00:27	80m	-2 / -	EA5HM	-10 / +3	10	Partial capture
10-10 00:27	80m	- / -7	EC3A	-2 / -	2	Partial capture
10-10 00:26	80m	-2 / -14	DO9BAU	+4 / -2	7	✓ Full exchange observed
10-10 00:26	80m	-6 / -4	EB3JT	-14 / +2	4	✓ Full exchange observed
10-10 00:24	80m	-7 / -12	9A3AUH	+8 / -6	7	✓ Full exchange observed
10-10 00:24	80m	-10 / -14	YO4NF	+7 / -1	4	✓ Full exchange observed
10-10 00:23	80m	-4 / -	VP2MAA	- / -10	4	✓ Closing fragment
10-10 00:18	80m	+2 / -	VE3DZ	- / -18	9	Partial capture
10-03 04:36	160m	- / -26	IW5ABF	-19 / -	6	Partial capture
10-03 04:34	160m	-15 / -	9H1ES	-7 / -14	4	✓ Closing observed
10-03 04:30	160m	-13 / -	9H1ES	- / -	3	Partial capture
09-30 20:10	160m	-16 / -11	C37AC	-12 / -13	4	✓ Full exchange observed
09-30 20:06	160m	- / -10	PA3DUU	+1 / -	4	✓ Closing fragment
09-30 20:02	160m	-14 / -	OZ2LIN	-5 / -11	3	✓ Closing observed
09-21 20:09	80m	-6 / -	SP2EWQ	+16 / -9	4	✓ Closing observed
09-21 20:07	80m	-6 / -11	LX1JH	+20 / -	4	✓ Closing observed
09-21 20:01	80m	- / -	UA4FKT	+12 / -	2	Partial capture
09-21 19:59	80m	-3 / -	5P1KZX	+4 / -9	4	✓ Closing observed
09-21 19:50	80m	-8 / -	RI1FJZ	- / -18	2	Partial capture
09-21 19:21	80m	+3 / -	RI1FJZ	- / -	8	Partial capture
09-21 19:20	80m	-2 / -	RW1CW	-12 / -14	4	✓ Closing observed
09-21 19:15	80m	-6 / -	RI1FJZ	- / -	4	Partial capture
09-21 19:09	80m	-6 / -	RI1FJZ	- / -	4	Partial capture
09-21 19:05	80m	- / -	RW1CW	+1 / -	5	Partial capture
09-21 19:04	80m	-4 / -	RI1FJZ	- / -	2	Partial capture
09-21 19:00	80m	-4 / -	RI1FJZ	- / -	2	Partial capture
09-21 18:57	80m	- / -	RW1CW	-3 / -	4	Partial capture
09-21 18:55	80m	-5 / -	RI1FJZ	- / -	3	Partial capture
09-21 18:47	80m	- / -	EA1IOK	-8 / -	3	Partial capture
08-27 20:06	80m	- / -5	G7DPE	-11 / -	2	✓ Closing fragment
08-27 19:57	80m	+2 / -	LZ2VQ	-16 / -20	3	Partial capture
08-27 19:56	80m	+1 / -	DK7ZT	- / -10	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
181215  -8 2058  F4FFZ OZ6FH JO47 (x3)
181615 -24 1549  F4FFZ G4OWT R-20
204100 -16 2385  HA5OV F4FFZ IN87 (x6)
204830 -13 2385  DO3VE F4FFZ -19 (x3)
205245 -17 2382  F4FFZ 9A4ZM JN86
202045 -24  814  F4FFZ GI4SNA -02

80m

UTC    dB Audio  Message
003515 -12 1532  F4FFZ EA5HM R-19
061445  -5 2278  VE2CKW F4FFZ IN87 (x3)
061600  -8 2403  F4FFZ PE1NPS JO22
061600 -10 1025  F4FFZ EA1IOK IN62
061615  -7 2278  WB8YJF F4FFZ R-03
061630  -8 2403  F4FFZ PE1NPS JO22
061630  -6 1025  F4FFZ EA1IOK IN62
061645  -6 2278  WB8YJF F4FFZ 73
061700  -7 2402  F4FFZ PE1NPS JO22
061700  -9 1025  F4FFZ EA1IOK IN62 (x3)
061845  -6 2278  F4NPE F4FFZ -12

40m

UTC    dB Audio  Message
053345  -4 2198  OA4ENG F4FFZ IN87 (x4)
054000 -16 1637  F4FFZ IK4TVP -02 (x2)
071445  -6 1102  FK8HC F4FFZ IN87 (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.

CW

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

Explore CW reception at SO8OO

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