R4BD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LN28

Receiver-side FT8 activity involving R4BD, decoded by SO8OO in southeastern Poland. 89 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-09-21.

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 89 FT8 messages attributed to R4BD as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (37%), followed by 80 m (30%) and 40 m (25%). Several six-hour UTC windows tied for the largest share (80%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 33 80m · 27 40m · 22 20m · 7

First attributed message: 2026-08-11
Last attributed message: 2026-09-21 17:25 UTC

Observed FT8 message patterns

Attributed sample: 89 messages
Active dates: 10 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 23.

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 R4BD in decoded directed-looking exchanges:

R7DX · European Russia ×2 RA6MQ · European Russia ×2 R1AP · European Russia R2DRE · European Russia R6DSW · European Russia R9SAP · Asiatic Russia RA3QTT · European Russia RA3RDN · European Russia RA3RGQ · European Russia RA7T · European Russia RU3X · European Russia RW2Z · 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 R4BD

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: LN28 · 35 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,686 km (approx.)
Last such locator decoded: 2026-09-20 17:05 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	R4BD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 17:28	160m	- / -14	S52D	-3 / -	11	Partial capture
09-21 17:26	160m	- / +7	R6DSW	-17 / -	2	✓ Closing fragment
09-21 17:24	160m	-17 / -15	R1AP	-13 / -9	3	✓ Full exchange observed
09-21 17:02	160m	- / -18	R7DX	-7 / -	3	✓ Closing fragment
09-21 17:01	160m	- / -	RA3RDN	-20 / -	2	✓ Closing fragment
09-20 17:00	160m	-6 / -	RI1FJZ	- / -	8	Partial capture
09-20 16:51	160m	- / -	S56P	+6 / -	4	Partial capture
09-20 16:51	160m	-14 / -	RA3RGQ	- / -13	2	✓ Closing fragment
09-20 16:50	160m	-10 / -	UA4HJ	- / -12	2	✓ Closing fragment
09-20 16:46	160m	- / -	S56P	-4 / -	3	Partial capture
09-20 16:46	160m	-12 / -	RW2Z	- / -13	2	✓ Closing fragment
09-20 16:45	160m	-13 / -	UA9CMN	- / -18	2	✓ Closing fragment
09-20 16:44	160m	-12 / -	R9SAP	- / -5	2	✓ Closing fragment
09-20 16:42	160m	-11 / -14	RU3X	-7 / -17	4	✓ Full exchange observed
09-20 16:41	160m	-8 / -	RA7T	-2 / -	2	✓ Closing observed
09-20 16:41	160m	- / -	QSYDX	-9 / -	3	Partial capture
09-20 16:38	160m	-14 / +2	RA6MQ	-11 / -2	4	✓ Full exchange observed
09-20 16:35	160m	-17 / +2	UA3ZUX	-12 / +3	5	✓ Full exchange observed
09-20 16:10	160m	-20 / -18	RA3QTT	-5 / -	5	✓ Closing observed
09-17 16:16	40m	-11 / -	RA9CUU	- / -13	2	✓ Closing fragment
09-07 15:33	40m	- / -12	SP7TF	-5 / -	2	Partial capture
09-07 15:32	40m	0 / +4	RA3WY	-3 / +1	5	✓ Full exchange observed
09-07 15:30	40m	- / -8	R2EA	+4 / -	4	Partial capture
09-01 03:00	40m	- / -	UA3PAB	-6 / -	2	Partial capture
09-01 02:58	40m	-13 / -10	R2RCQ	-7 / -4	4	✓ Full exchange observed
09-01 02:58	40m	- / -	RL3QGD	-2 / -	4	Partial capture
08-30 04:06	20m	- / -	RA0SCZ	-8 / -	3	Partial capture
08-28 16:43	40m	-12 / -	R1TET	- / -11	2	✓ Closing fragment
08-28 16:42	40m	-10 / 0	RZ6CO	-4 / -	3	✓ Closing observed
08-28 16:41	40m	-10 / -	UA9CR	-1 / -	2	✓ Closing observed
08-28 02:00	80m	- / -	EA5HM	-3 / -	2	Partial capture
08-28 01:59	80m	- / -15	MM0KQC	-9 / -	4	Partial capture
08-28 01:59	80m	0 / -8	SP6FME	+10 / -15	7	✓ Full exchange observed
08-28 01:57	80m	-2 / -5	R2EA/P	-8 / -13	6	✓ Full exchange observed
08-27 16:45	80m	- / -3	R1530IG	-7 / -	2	Partial capture
08-27 16:36	80m	- / -8	UN7LEW	-18 / -	2	✓ Closing fragment
08-27 16:35	80m	- / 0	RQ7O	+8 / -	4	✓ Closing fragment
08-27 16:33	80m	- / -	S56P	+11 / -	2	Partial capture
08-27 16:32	80m	-20 / +8	R3RB	-13 / -	4	✓ Closing observed
08-27 16:31	80m	-20 / -	UA4AOC	- / -16	2	✓ Closing fragment
08-27 16:31	80m	- / -17	R3PJ	-19 / -	3	Partial capture
08-27 16:30	80m	-20 / -	RM8L	- / -12	2	✓ Closing fragment
08-26 16:38	80m	-20 / -	RA4FHO	0 / -15	3	✓ Closing observed
08-26 16:35	80m	-19 / -	R9DZ	- / -11	2	✓ Closing fragment
08-26 16:35	80m	- / -	R4UA	-6 / -	2	Partial capture
08-26 16:34	80m	-16 / -5	UA6HJT	+6 / +8	5	✓ Full exchange observed
08-26 16:32	80m	-19 / +6	RN3RFZ	-7 / -1	6	✓ Full exchange observed
08-12 15:47	20m	- / -15	BI4XDT	-12 / -	2	✓ Closing fragment
08-11 15:22	40m	- / 0	R7DX	-16 / -	3	✓ Closing fragment
08-11 09:41	20m	-4 / +2	YO9PH	-20 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
172500 -17 2343  R1AP R4BD R-09
172515 -16  493  R4BD R1AP RR73
172645 -19 1955  R4BD R6DSW R+07 (x2)
172845 -10 2414  R4BD S52D JN76 (x11)

40m

UTC    dB Audio  Message
153115  +3 1865  CQ R4BD LN28
153130  +2 2572  R4BD R2EA -03
153145  +3 1865  CQ R4BD LN28
153200  +4 2572  R4BD R2EA -02
153230  -5 1637  R4BD RA3WY KO81
153230  -1 1864  R4BD OE6TNO JN77
153245  -2 1865  RA3WY R4BD +01
153300  -2 1637  R4BD RA3WY R+04
153300 -20 1865  R4BD R1BDX KO59
153315  +2 1865  RA3WY R4BD RR73
153330  -6 1865  R4BD SP7TF -12
153330  -3 1637  R4BD RA3WY 73
153400  -4 1865  R4BD SP7TF -12
161600 -13 1866  RA9CUU R4BD R-13 (x2)

20m

UTC    dB Audio  Message
094100 -12 1425  R4BD PE9JAN R-06
094130 -20 2169  R4BD YO9PH +02
094130 -12 1425  R4BD PE9JAN 73
094200 -20 2169  R4BD YO9PH RR73
094215  -4 2490  YO9PH R4BD 73
094230 -16 2489  R4BD TA3ZGR -15
094630  -6 2490  WK2M R4BD LN28
153215 -22 1219  R4BD R8AU R-15
154715 -11  921  R4BD BI4XDT R-15 (x2)
163745 -12 1689  TA4RC R4BD LN28
164015  -7 1689  <...> R4BD LN28
040600  -9  537  R4BD RA0SCZ OO06 (x3)

80m

UTC    dB Audio  Message
015845  -9 2121  R4BD R2EA/P RR73
015900  +0 1617  R2EA/P R4BD 73
015915 +12 1617  R4BD SP6FME JO90
015915  -9 1450  R4BD MM0KQC -15
015945 +10 1617  R4BD SP6FME JO90
015945  -9 1450  R4BD MM0KQC -15
020000  +0 1617  SP6FME R4BD -15
020015  +9 1617  R4BD SP6FME R-08
020015 -10 1450  R4BD MM0KQC -15
020045  +8 1617  R4BD SP6FME R-08
020045  -9 1450  R4BD MM0KQC -15
020045  -5 1468  R4BD EA5HM IM99
020100  -1 1617  SP6FME R4BD RR73
020115 +13 1617  R4BD SP6FME 73
020115  -1 1468  R4BD EA5HM IM99

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.

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