R1FB — 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: KO48

Receiver-side FT8 activity involving R1FB, decoded by SO8OO in southeastern Poland. 212 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-10-23.

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 212 FT8 messages attributed to R1FB as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (86%), followed by 40 m (8%) and 20 m (5%). Most decodes (66%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -6.5 dB.

Overview

212

Messages attributed

UTC dates decoded

Active 15-min windows

-6.5 dB

Estimated median S/N

Bands

160m · 3 80m · 182 40m · 16 20m · 11

First attributed message: 2026-06-15
Last attributed message: 2026-10-23 04:32 UTC

Observed FT8 message patterns

Attributed sample: 212 messages
Active dates: 12 UTC dates
Estimated median S/N: -6.5 dB
Estimated 10th-90th percentile: -15 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 61, strong (≥ -8 dB) 131.

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 R1FB in decoded directed-looking exchanges:

RI1FJZ · Franz Josef Land 9V1YC · Singapore DF4WQ · Fed. Rep. of Germany DL8LE · Fed. Rep. of Germany DL8TV · Fed. Rep. of Germany E75W · Bosnia-Herzegovina EA1CQ · Spain HA5UK · Hungary IU2VBP · Italy JH2FXK · Japan MI0OBC · Northern Ireland R1TAX · European Russia

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 R1FB

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: KO48 · 160 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,060 km (approx.)
Last such locator decoded: 2026-10-23 04:31 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	R1FB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 04:30	80m	+3 / -7	E75W	+7 / -5	7	✓ Full exchange observed
10-23 04:27	80m	+1 / -9	GM6URC	-20 / -10	3	Partial capture
10-23 04:27	80m	+4 / -	DL9KM	- / -21	2	Partial capture
10-23 04:22	80m	0 / +3	DF4WQ	-6 / -11	8	✓ Full exchange observed
10-23 04:22	80m	-2 / -7	DL8TV	+9 / -2	6	✓ Full exchange observed
10-23 04:20	80m	-2 / +7	HA5UK	-11 / -	6	✓ Full exchange observed
10-23 04:18	80m	-4 / -	TK/DH7SB	- / -	4	Partial capture
10-23 04:13	80m	+1 / -4	DL8LE	+16 / -3	7	✓ Full exchange observed
10-23 04:11	80m	+3 / -	TK/DH7SB	- / -	7	Partial capture
10-23 04:10	80m	+2 / -	P4/WE9V	- / -	2	Partial capture
10-23 03:53	80m	+1 / -	YU65AEC	- / -13	2	Partial capture
09-17 17:17	160m	- / -	UA2FBW	-4 / -	2	Partial capture
09-17 17:15	160m	-13 / -	RI1FJZ	- / -14	3	✓ Closing fragment
09-16 17:58	80m	-23 / -	RI1FJZ	- / -18	9	Partial capture
09-15 13:11	40m	-14 / -	RI1FJZ	- / -	16	Partial capture
09-04 17:07	80m	-5 / -11	RA4ABH	-20 / -7	5	Partial capture
09-04 17:05	80m	-9 / -7	RA6ZS	-12 / -9	4	✓ Full exchange observed
09-04 17:03	80m	-5 / -7	R8FB	-9 / +7	5	✓ Full exchange observed
09-02 04:26	80m	-10 / -	RI1FJL	- / -	4	Partial capture
09-02 03:13	80m	- / -6	MI0OBC	-2 / -	5	✓ Closing fragment
09-02 03:05	80m	- / -13	RC6OU	+6 / -	5	✓ Closing fragment
09-02 02:56	80m	- / -10	EA1CQ	0 / -	3	✓ Closing fragment
09-02 02:53	80m	- / -9	K5OA	+1 / -	3	Partial capture
09-02 02:53	80m	- / -	RA6ZS	+4 / -	2	Partial capture
09-02 02:52	80m	- / -7	IU2VBP	+7 / -	10	✓ Closing fragment
09-01 20:42	80m	-5 / -	RI1FJL	- / -	10	Partial capture
09-01 20:36	80m	-10 / -	RI1FJL	- / -	4	Partial capture
09-01 20:24	80m	-9 / -	RI1FJL	- / -	11	Partial capture
09-01 20:18	80m	-5 / -	RI1FJL	- / -	2	Partial capture
09-01 19:58	80m	- / -	EW8CW	-13 / -	3	Partial capture
09-01 19:57	80m	-8 / -	RI1FJL	- / -	18	Partial capture
09-01 19:26	80m	-13 / -	RA0SCA	-14 / -9	2	Partial capture
09-01 19:24	80m	-12 / -	RI1FJL	- / -14	2	Partial capture
09-01 19:15	80m	-7 / -	RI1FJL	- / -	6	Partial capture
09-01 18:46	80m	-9 / -	RI1FJL	- / -	5	Partial capture
09-01 18:37	80m	-10 / -	RI1FJL	- / -	10	Partial capture
09-01 18:27	80m	-6 / -	RI1FJL	- / -16	9	Partial capture
08-30 17:52	80m	-7 / -7	RN7T	-15 / -	2	Partial capture
08-30 17:22	80m	- / -	RW9WT	-2 / -	2	Partial capture
08-30 17:21	80m	-15 / -15	9V1YC	-9 / -14	5	✓ Full exchange observed
08-29 20:49	80m	- / -14	RK9DO	-15 / -	2	Partial capture
08-29 20:47	80m	- / -	OK1UOZ	+14 / -	8	Partial capture
08-29 20:47	80m	- / +6	UB3ANV	-4 / -	3	✓ Closing fragment
08-29 18:40	80m	- / -4	R3KJF	-7 / -	3	✓ Closing fragment
08-29 16:21	80m	- / -10	RC6OG	-7 / -	3	✓ Closing fragment
08-29 04:02	80m	- / -	DK2CC	+4 / -	2	Partial capture
08-29 04:01	80m	-6 / -	PY5XT	- / -	11	Partial capture
08-28 20:21	80m	+6 / -5	RA3WY	+4 / -	4	Partial capture
08-28 20:15	80m	-2 / -	JH2FXK	-21 / -20	6	✓ Closing observed
08-28 20:07	80m	-4 / -	UA0TP	- / -18	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
042545  +1 1809  R1FB DF4WQ R+03
042600  +3 1553  DF4WQ R1FB RR73
042615  -4 1808  R1FB DF4WQ 73
042700  +4 1554  DL9KM R1FB -21
042715 -20 1693  R1FB GM6URC -09
042800  +5 1554  DL9KM R1FB -21
042900  +0 1554  GM6URC R1FB R-10 (x2)
043030  +0 1554  E75W R1FB KO48
043045 +10 2366  R1FB E75W -07
043100  +7 1553  E75W R1FB KO48
043115  +5 2366  R1FB E75W -10
043130  +2 1553  E75W R1FB R-05
043145  +6 2366  R1FB E75W RR73
043200  +4 1554  E75W R1FB 73

160m

UTC    dB Audio  Message
171515 -11 1867  RI1FJZ R1FB KO48 (x3)
171730  -4 2821  R1FB UA2FBW KO04 (x2)

40m

UTC    dB Audio  Message
131145 -11 2113  RI1FJZ R1FB KO48 (x15)

20m

UTC    dB Audio  Message
044500  -8 2192  ZL2BX R1FB KO48

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.

80m: 1 events; last heard 2026-10-11 18:20 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-10-11 18:20:27	80m	3519.997	19.8 dB	25.3	WebSDR ↗

CW reception history

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