4X6FB — 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: Israel Most frequent locator attributed to this token: KM72

Receiver-side FT8 activity involving 4X6FB, decoded by SO8OO in southeastern Poland. 88 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-09 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 88 FT8 messages attributed to 4X6FB as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (58%), followed by 20 m (42%). Most decodes (55%) 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 -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

20m · 37 10m · 51

First attributed message: 2026-06-09
Last attributed message: 2026-11-06 08:32 UTC

Observed FT8 message patterns

Attributed sample: 88 messages
Active dates: 6 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -19 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 45, strong (≥ -8 dB) 21.

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 4X6FB in decoded directed-looking exchanges:

9A3AUH · Croatia 9A7R · Croatia CR7BRV · Portugal CS7BPG · Portugal DJ3HW · Fed. Rep. of Germany DN9PBN · Fed. Rep. of Germany HB9TVS · Switzerland IK4LDZ · Italy N4QS · United States OE3FVU · Austria S56P · Slovenia S57NCP · Slovenia

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 4X6FB

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: KM72 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,224 km (approx.)
Last such locator decoded: 2026-11-06 08:32 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	4X6FB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 08:53	10m	- / -11	IK4LDZ	-3 / -	2	✓ Closing fragment
11-06 08:14	10m	-14 / -	UR5ZGY	- / -	2	Partial capture
11-06 07:48	10m	-13 / -	DL6FKR	- / -	3	Partial capture
11-06 07:47	10m	-14 / -	S57NCP	- / -	2	✓ Closing fragment
11-06 07:42	10m	-14 / -	YO8DHD	- / -5	3	✓ Closing fragment
11-06 07:34	10m	-16 / -	OE3FVU	- / -3	2	✓ Closing fragment
11-06 07:31	10m	-14 / -	S56P	- / -6	3	✓ Closing fragment
11-06 07:24	10m	-14 / -	9A7R	- / -	3	✓ Closing fragment
10-16 10:18	10m	-17 / -	OM1FED	- / -5	2	Partial capture
10-16 09:58	10m	-22 / -	DN9PBN	- / -2	2	✓ Closing fragment
10-16 09:45	10m	- / -16	F4ILK	-21 / -	4	Partial capture
10-13 14:23	10m	-4 / -	3B8GL	- / -	2	Partial capture
10-13 14:02	10m	-8 / -	N4QS	- / -12	2	✓ Closing fragment
10-13 13:57	10m	- / +7	CS7BPG	-16 / -	4	✓ Closing fragment
10-13 13:52	10m	-4 / -	HB9TVS	- / -9	2	✓ Closing fragment
10-11 11:35	10m	- / -4	DJ3HW	-5 / -	4	✓ Closing fragment
10-11 11:00	10m	- / -	DK6AH	-14 / -	2	Partial capture
09-24 13:35	10m	- / -15	CR7BRV	+6 / -	2	✓ Closing fragment
09-24 13:06	10m	- / -10	YD0JHX	-20 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
074830 -11  832  DL6FKR 4X6FB KM72 (x3)
075015 -13  833  IZ5IMD 4X6FB KM72
075530 -15  786  4X6FB SQ8DPZ RR73
080945 -15  832  RV6LN 4X6FB KM72
081445 -15  833  UR5ZGY 4X6FB KM72 (x2)
081945 -11  833  ON8PB 4X6FB KM72
082215 -12  833  IK0QDM 4X6FB KM72
082600 -14  833  OK1FED 4X6FB KM72
083045 -17  833  YL3VN 4X6FB KM72
083230 -13  833  DO9AO 4X6FB KM72
085330  -1 2915  4X6FB IK4LDZ -11 (x2)

40m

UTC    dB Audio  Message
170430 -12  584  4X6FB <...> -16
134315 -11 1023  4X6FB DF1WR JN39

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

1 CW reception events in the last 30 days.

10m: 1 events; last heard 2026-10-11 09:30 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-10-11 09:30:18	10m	28008.074	9.4 dB	23.5	WebSDR ↗

CW reception history

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