F4CHC — 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: JO00

Receiver-side FT8 activity involving F4CHC, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-26 and 2026-10-29.

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 64 FT8 messages attributed to F4CHC as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 64

First attributed message: 2026-10-26
Last attributed message: 2026-10-29 07:13 UTC

Observed FT8 message patterns

Attributed sample: 64 messages
Active dates: 3 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -19 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 36, strong (≥ -8 dB) 5.

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 F4CHC in decoded directed-looking exchanges:

DJ0MAB · Fed. Rep. of Germany DL6UM · Fed. Rep. of Germany EA6BH · Balearic Islands LA8ENA · Norway OK2FKU · Czech Republic R4IK · European Russia RC9WC · Asiatic Russia S56A · Slovenia SP6AXW · Poland TI4LAS · Costa Rica

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 F4CHC

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: JO00 · 52 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,476 km (approx.)
Last such locator decoded: 2026-10-29 07:13 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	F4CHC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-29 07:11	40m	-13 / -	VK3XIL	- / -	6	Partial capture
10-29 04:20	40m	-20 / -	OA4ELT	- / -	2	Partial capture
10-29 04:04	40m	-20 / -	WP4TNN	- / -	2	Partial capture
10-29 03:53	40m	- / -18	RC9WC	0 / -	3	✓ Closing fragment
10-29 03:52	40m	-18 / -15	R4IK	-22 / -8	3	✓ Full exchange observed
10-29 03:32	40m	-9 / -	EX7CQ	- / -	7	Partial capture
10-28 06:23	40m	-9 / -15	S56A	-11 / -	3	✓ Closing observed
10-28 06:16	40m	-11 / -	OA4ENG	- / -	2	Partial capture
10-26 06:52	40m	-13 / -	S55X	- / -	3	Partial capture
10-26 06:51	40m	-13 / +1	DJ0MAB	-8 / +8	5	✓ Full exchange observed
10-26 06:50	40m	-19 / -6	LA8ENA	-21 / -	2	✓ Closing observed
10-26 06:47	40m	-14 / -	OA4ENG	- / -	2	Partial capture
10-26 06:45	40m	-18 / -9	EA6BH	-17 / -3	6	✓ Full exchange observed
10-26 06:34	40m	- / -	SP6AXW	-19 / -	2	✓ Closing fragment
10-26 06:32	40m	-15 / +3	OK2FKU	+4 / +2	5	✓ Full exchange observed
10-26 06:24	40m	- / +3	DL6UM	-1 / -	3	✓ Closing fragment
10-26 06:09	40m	-14 / -	OT7K	- / -	4	Partial capture
10-26 06:07	40m	-10 / -	TI4LAS	- / -4	4	✓ Closing fragment
10-26 06:04	40m	-14 / -	W5RBD	- / -	2	Partial capture
10-26 06:02	40m	-14 / -	TI4LAS	- / -	2	Partial capture
10-26 05:59	40m	-12 / -19	OK1HEH	-12 / -	4	Partial capture
10-26 05:56	40m	-16 / -	OT7K	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
035430  +1 1510  F4CHC RC9WC RR73
035715 -18 1259  WP4TNN F4CHC R-09
040315 -19 1259  KM4SXE F4CHC JO00
040445 -19 1258  WP4TNN F4CHC JO00 (x2)
040845 -21 1259  F4MRJ/P F4CHC R-07
041245 -24 1259  OA4ENG F4CHC JO00
042015 -19 1258  OA4ELT F4CHC JO00 (x2)
071100 -13 1259  VK3XIL F4CHC JO00 (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.

CW

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

Explore CW reception at SO8OO

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