R3RB — 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: LO03

Receiver-side FT8 activity involving R3RB, decoded by SO8OO in southeastern Poland. 3,873 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 95 UTC dates in the available aggregate history. Observed between 2026-06-08 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 3,873 FT8 messages attributed to R3RB as the transmitting token by decoded message structure across 95 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (79%), followed by 40 m (20%) and 20 m (1%). Most decodes (71%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

3,873

Messages attributed

UTC dates decoded

413

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 4 80m · 3,058 40m · 780 20m · 31

First attributed message: 2026-06-08
Last attributed message: 2026-10-23 18:14 UTC

Observed FT8 message patterns

Attributed sample: 3,873 messages
Active dates: 95 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18.2 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 690, moderate (-15 to -9 dB) 1,345, strong (≥ -8 dB) 1,838.

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 R3RB in decoded directed-looking exchanges:

R4FDD · European Russia ×4 R2APC · European Russia ×2 R4FDK · European Russia ×2 R6JAG · European Russia ×2 R70OBN · European Russia ×2 R9CS/P · Asiatic Russia ×2 RA1WU · European Russia ×2 RA4CFX · European Russia ×2 RK6MC · European Russia ×2 RU6FS · European Russia ×2 RW9WJ · Asiatic Russia ×2 RY9C · Asiatic Russia ×2

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 R3RB

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: LO03 · 3,002 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,376 km (approx.)
Last such locator decoded: 2026-10-23 18:14 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	R3RB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 18:28	160m	- / -19	R3YBG	-8 / -	2	Partial capture
10-23 18:26	160m	- / -21	RJ3DC	+6 / -	3	✓ Closing fragment
10-23 18:12	80m	-12 / -5	HA9RQ	+5 / -19	5	✓ Full exchange observed
10-23 17:58	80m	- / -	YL3KZ	0 / -	2	✓ Closing fragment
10-23 17:48	80m	-5 / -	RA9SBN	- / -10	2	✓ Closing fragment
10-23 04:11	80m	-4 / -	TK/DH7SB	- / -	5	Partial capture
10-23 04:10	80m	-4 / -	R1QF/P	- / -	2	Partial capture
10-23 04:07	80m	-13 / -	R6ZAJ	- / -4	2	✓ Closing fragment
10-23 03:50	80m	-1 / -	RU3DBT	- / -24	3	Partial capture
10-23 03:43	80m	- / -	EA5JKT	-9 / -	3	Partial capture
10-23 03:34	80m	-8 / -17	VE1VOX	+2 / -	4	Partial capture
10-23 03:30	80m	-4 / -	TK/DH7SB	- / -	2	Partial capture
10-22 17:50	80m	-11 / -	RA2F	-9 / -6	3	✓ Closing observed
10-22 17:28	160m	- / -17	RW3LL	+10 / -	2	✓ Closing fragment
10-22 16:42	160m	- / -11	RO3ZW	-22 / -	2	✓ Closing fragment
10-21 18:05	160m	- / -16	RU4SS	-16 / -	2	✓ Closing fragment
10-21 17:44	160m	- / -13	RK6MC	-7 / -	3	✓ Closing fragment
10-21 17:42	160m	- / -17	RT2H	-6 / -	2	✓ Closing fragment
10-21 03:38	80m	0 / +6	9A2G	+9 / -3	5	✓ Full exchange observed
10-20 18:32	160m	- / -9	OH5KNL	+8 / -	2	✓ Closing fragment
10-18 15:03	80m	-20 / -	R6NA	-12 / +8	2	✓ Closing observed
10-18 14:58	80m	-22 / -	R8PG	- / -	4	Partial capture
10-18 04:08	80m	- / -13	R2EA/P	0 / -	2	✓ Closing fragment
10-18 03:52	80m	- / -7	DO1OAS	-8 / -	3	✓ Closing fragment
10-18 03:42	80m	- / -	ON4MAP	-12 / -	4	Partial capture
10-18 03:41	80m	0 / -9	F8VNU	-1 / -22	7	Partial capture
10-18 03:30	80m	- / -6	R4FDD	-6 / -	2	✓ Closing fragment
10-18 03:28	160m	- / -12	RK3AW	-8 / -	2	✓ Closing fragment
10-17 15:46	80m	+1 / -	UN7GDB	- / -21	2	✓ Closing fragment
10-17 15:45	80m	- / -5	S51CN	-12 / -	2	Partial capture
10-17 15:23	80m	-9 / -	R2BPS	- / -9	4	✓ Closing fragment
10-17 15:19	80m	-12 / +4	R7ZY	-12 / +3	7	✓ Full exchange observed
10-17 15:16	80m	-10 / -	R8CEL	- / -5	3	✓ Closing fragment
10-16 18:02	160m	- / -22	RL3FA	+2 / -	2	✓ Closing fragment
10-16 17:59	160m	- / -9	RW3DC	-14 / -	2	✓ Closing fragment
10-16 17:49	160m	- / -13	R1NI	-20 / -	2	✓ Closing fragment
10-16 16:50	80m	-5 / -	RV9WJP	- / -10	7	✓ Closing fragment
10-16 16:40	80m	-7 / -	RV9WJP	-13 / -12	14	Partial capture
10-16 16:29	80m	-13 / -2	UA1CKA	+4 / -2	8	✓ Full exchange observed
10-16 16:20	40m	- / -13	ON3MOH	-11 / -	4	✓ Closing fragment
10-16 04:06	80m	-13 / -	VP2MAW	- / -	11	Partial capture
10-16 04:04	80m	- / -	ON4MAP	-12 / -	4	Partial capture
10-16 03:52	80m	-3 / -	VP2MAW	- / -	3	Partial capture
10-16 03:27	80m	-6 / -	VP2MAW	- / -	31	Partial capture
10-15 15:40	80m	- / -	DC0GL	-8 / -	4	Partial capture
10-15 15:40	80m	-12 / -	RA4FEA	-12 / +7	5	✓ Full exchange observed
10-15 15:34	80m	-10 / -	UB6ZDJ	- / -17	2	✓ Closing fragment
10-15 15:33	80m	-12 / -	RA9UFJ	- / -10	2	✓ Closing fragment
10-15 15:29	80m	-12 / -	R4AGE/P	- / -	2	✓ Closing fragment
10-15 15:27	80m	-18 / -	BI8FRF	- / -18	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
174400  -8 1559  R3RB RK6MC -13 (x3)
180500 -13  742  R3RB RU4SS -16 (x2)
164215 -20 1654  R3RB RO3ZW -11 (x2)
164945 -18 1540  R3RB UA4FKT 73
172830 +10 2640  R3RB RW3LL -17 (x2)
182600  +7 1452  R3RB RJ3DC KO95 (x3)
182830 -11  995  R3RB R3YBG KO73 (x2)

80m

UTC    dB Audio  Message
180215 -10 1500  CQ R3RB LO03 (x7)
181230  +9 1227  R3RB HA9RQ KN08
181245 -15 1500  HA9RQ R3RB -19
181300  +4 1228  R3RB HA9RQ R-05
181315  -9 1500  HA9RQ R3RB RR73
181330  +2 1228  R3RB HA9RQ 73
181345 -14 1500  CQ R3RB LO03 (x3)

40m

UTC    dB Audio  Message
040145 -17 1988  PQ5TA R3RB LO03 (x11)
162045 -12 1301  R3RB ON3MOH -13 (x4)

20m

UTC    dB Audio  Message
084545 -17 1797  HI8UD R3RB LO03
084915 -18 1797  RW0IM R3RB LO03
084945 -17 1798  HI8UD R3RB LO03 (x11)
041115 -15 2105  R3RB EP2AES LM55 (x2)

10m

UTC    dB Audio  Message
151400  -7 2871  R3RB RZ6L R-24

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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