UB3FCU — 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: European Russia Most frequent locator attributed to this token: LN14

Receiver-side FT8 activity involving UB3FCU, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-21.

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 38 FT8 messages attributed to UB3FCU as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (71%), followed by 40 m (24%) and 10 m (5%). Several six-hour UTC windows tied for the largest share (63%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

40m · 9 20m · 27 10m · 2

First attributed message: 2026-06-07
Last attributed message: 2026-10-21 00:13 UTC

Observed FT8 message patterns

Attributed sample: 38 messages
Active dates: 5 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -23 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 9.

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 UB3FCU in decoded directed-looking exchanges:

RZ4FWA · European Russia ×2 DF3IS · Fed. Rep. of Germany DL3MIB · Fed. Rep. of Germany RN3GG · European Russia RW1AI · European Russia LA2GCA · Norway R2ASY · European Russia R4ZZ · European Russia R8OAE · Asiatic Russia R9OON · Asiatic Russia YO4NT · Romania YT2TW · Serbia

Most frequent locator attributed to UB3FCU

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: LN14 · 13 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,705 km (approx.)
Last such locator decoded: 2026-10-21 00:12 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	UB3FCU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 00:12	40m	-24 / -10	R4ZZ	-4 / -2	5	✓ Full exchange observed
10-21 00:06	40m	-20 / -	SP7TF	- / -15	2	Partial capture
10-21 00:04	40m	- / -19	R9OON	-18 / -	3	✓ Closing fragment
10-20 22:30	40m	- / -12	ON1JP	-20 / -	2	Partial capture
10-20 22:29	40m	-22 / -	YT2TW	- / -14	2	✓ Closing fragment
10-17 20:00	40m	- / -12	YO4NT	-6 / -	3	✓ Closing fragment
10-17 19:53	40m	- / -24	LA2GCA	-12 / -	4	✓ Closing fragment
10-17 19:01	40m	- / -15	R2ASY	-10 / -	2	✓ Closing fragment
09-22 17:11	40m	- / -	YO4GOU	-6 / -	2	Partial capture
09-22 17:02	40m	- / -16	R8OAE	-23 / -	2	✓ Closing fragment
09-22 16:55	40m	- / -2	UA3ON	-6 / -	3	Partial capture
08-05 14:01	20m	-21 / -	DL3MIB	- / -10	2	✓ Closing fragment
08-05 13:57	20m	-14 / -	DF3IS	- / -9	3	✓ Closing fragment
08-05 13:57	20m	-18 / -14	RZ4FWA	-18 / -8	9	✓ Full exchange observed
08-05 13:52	20m	-15 / -	RW1AI	- / -10	3	✓ Closing fragment
08-05 13:50	20m	-15 / -	RN3GG	- / -23	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
222100 -22 1319  9A2AJ UB3FCU LN14
222900 -21 1319  YT2TW UB3FCU R-14 (x2)
223015 -20 1489  UB3FCU ON1JP -12 (x2)
000445 -21 1540  UB3FCU R9OON NO15 (x3)
000600 -21 1319  SP7TF UB3FCU R-15 (x2)
001230 -24 1319  R4ZZ UB3FCU LN14
001245  -4  372  UB3FCU R4ZZ -10
001300 -23 1319  R4ZZ UB3FCU R-02
001315  -3  372  UB3FCU R4ZZ RR73
001330 -24 1319  R4ZZ UB3FCU 73

20m

UTC    dB Audio  Message
135700 -14 1288  CQ UB3FCU LN14
135715 -14 2028  UB3FCU RZ4FWA LO23
135730 -11 1288  DF3IS UB3FCU -09
135745 -15 2028  UB3FCU RZ4FWA LO23
135800 -15 1288  DF3IS UB3FCU RR73
135815 -18 2028  UB3FCU RZ4FWA LO23
135830 -20 1288  RZ4FWA UB3FCU -08
135845 -20 2028  UB3FCU RZ4FWA R-14
135900 -17 1288  DF3IS UB3FCU RR73
135915 -19 2029  UB3FCU RZ4FWA R-14
135930 -15 1288  RZ4FWA UB3FCU RR73
135945 -21 2028  UB3FCU RZ4FWA R-14
140030 -18 1288  RZ4FWA UB3FCU RR73
140100 -22 1288  DL3MIB UB3FCU -10 (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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