R9UBP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: NO36

Receiver-side FT8 activity involving R9UBP, decoded by SO8OO in southeastern Poland. 51 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-09-04.

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 51 FT8 messages attributed to R9UBP as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (90%), followed by 40 m (8%) and 20 m (2%). Several six-hour UTC windows tied for the largest share (98%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 46 40m · 4 20m · 1

First attributed message: 2026-06-20
Last attributed message: 2026-09-04 18:13 UTC

Observed FT8 message patterns

Attributed sample: 51 messages
Active dates: 8 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -22 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 7.

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 R9UBP in decoded directed-looking exchanges:

R3BDQ · European Russia ×2 R4RN · European Russia ×2 RD7LC · European Russia ×2 SV2AEL · Greece ×2 EA5AR · Spain F5RRS · France RA6LO · European Russia SP5TAO · Poland 9A3TN · Croatia A71XX · Qatar DB9LG · Fed. Rep. of Germany DC8SG · Fed. Rep. of Germany

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 R9UBP

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: NO36 · 18 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 4,234 km (approx.)
Last such locator decoded: 2026-08-14 17:51 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	R9UBP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 23:56	40m	- / -16	F4CQS	-1 / -	5	Partial capture
09-13 15:15	40m	- / -16	RW3PI	-3 / -	2	✓ Closing fragment
09-13 15:10	40m	- / -	UB6OFG	+1 / -	4	Partial capture
09-04 18:12	40m	-10 / -	OM3WBY	-2 / -	2	✓ Closing observed
09-04 18:11	40m	- / -20	DL5RDP	+18 / -	2	Partial capture
09-04 18:09	40m	- / -	RZ5D	-9 / -	2	Partial capture
09-04 18:06	40m	-17 / -8	R2DDN	-9 / -13	8	Partial capture
09-04 18:05	40m	- / -	OE6TNO	+4 / -	4	Partial capture
08-29 10:11	20m	- / -	RW6HP	-14 / -	3	Partial capture
08-23 15:55	40m	- / -9	R6HD	-6 / -	2	Partial capture
08-15 08:13	20m	- / -13	EA5AR	-9 / -	3	✓ Closing fragment
08-14 17:52	80m	-20 / -12	RD7O	+2 / -9	5	✓ Full exchange observed
08-14 17:49	80m	- / -22	EW8CW	+3 / -	3	✓ Closing fragment
08-14 17:21	80m	-17 / -16	RA4FHO	+4 / -3	4	✓ Full exchange observed
08-14 17:18	80m	- / -	RD7O	+1 / -	2	Partial capture
08-14 17:06	80m	- / -14	RJ6ON	-20 / -	4	Partial capture
08-14 17:05	80m	- / -20	R2ATY	-12 / -	2	Partial capture
08-14 17:05	80m	- / -18	RD7LC	0 / -	2	✓ Closing fragment
08-14 17:03	80m	-13 / -11	R2SN	-1 / -3	4	✓ Full exchange observed
08-14 16:41	80m	- / -	R4UA	-10 / -	2	Partial capture
08-14 16:37	80m	- / -20	RA3TK	-15 / -	2	Partial capture
08-14 16:33	80m	- / -19	RX6DA	-5 / -	16	Partial capture
08-12 19:13	80m	- / -	DK3ME	-13 / -	2	Partial capture
08-12 19:10	80m	-16 / -11	R2ZJJ	-12 / -9	5	✓ Full exchange observed
08-12 19:09	80m	-16 / -11	UB1AHX	-24 / -20	3	✓ Full exchange observed
08-12 19:06	80m	-19 / -16	RA6YDX	-6 / -12	4	✓ Full exchange observed
08-12 19:05	80m	-18 / -15	E70SZ	+2 / -	4	✓ Closing observed
08-12 19:03	80m	- / -	RA6YDX	-4 / -	2	Partial capture
08-12 18:58	80m	-18 / -20	SV2AEL	-6 / -12	5	✓ Full exchange observed
08-12 18:49	80m	- / -14	R2APC	-16 / -	6	✓ Closing fragment
08-09 07:22	20m	- / -	IK4LZH	-5 / -	4	Partial capture
08-09 07:03	20m	- / -	R6DZR	-16 / -	2	Partial capture
08-09 06:59	20m	- / -	IK4LZH	-8 / -	2	Partial capture
08-09 06:59	20m	- / -	ON3PDM	-13 / -	2	Partial capture
08-09 06:58	20m	- / -19	F4LNM	-19 / -	3	Partial capture
08-08 18:40	80m	- / -	R2GFD	-15 / -	3	Partial capture
08-08 18:38	80m	- / -8	RU3DNN	+2 / -	3	✓ Closing fragment
08-08 18:37	80m	- / -16	R3DFS	-10 / -	3	✓ Closing fragment
08-08 18:15	40m	- / -14	SP7LPD	-11 / -	6	✓ Closing fragment
08-08 18:12	40m	- / -6	OM5ALL	-12 / -	3	Partial capture
08-08 18:10	40m	- / -11	IK6GPZ	-18 / -	2	✓ Closing fragment
08-08 18:06	40m	- / -	IK4LZH	-6 / -	2	Partial capture
08-08 18:06	40m	- / -6	R3BDQ	-6 / -	2	✓ Closing fragment
08-08 17:55	20m	- / -	RX6BE	-14 / -	2	Partial capture
08-08 17:48	20m	- / -4	RA6LO	-3 / -	2	✓ Closing fragment
08-08 17:39	20m	- / -	S58S	-4 / -	3	Partial capture
08-07 18:00	40m	- / -11	RK2Z	-5 / -	5	✓ Closing fragment
08-07 17:54	40m	- / -13	PA2RO	-8 / -	2	Partial capture
08-07 17:43	40m	- / -16	R6OAQ	-11 / -	3	Partial capture
08-06 14:36	40m	- / -4	RA3BY	-15 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
181145 +19 2748  R9UBP DL5RDP -20
181245  -2  973  R9UBP OM3WBY KN08
181300 -10  974  OM3WBY R9UBP RR73
151030  +3  782  R9UBP UB6OFG KN98 (x4)
151500  -4 2141  R9UBP RW6HPI LN25
151530  -7  853  R9UBP RW3PI -16 (x2)
235645  +0 1465  R9UBP F4CQS -16 (x5)

20m

UTC    dB Audio  Message
065945 -16 1750  R9UBP F4LNM R-19
070045 -10  463  R9UBP IK4LZH JN54
070315 -15 1017  R9UBP R6DZR KN84 (x2)
072215  -2  463  R9UBP IK4LZH JN54 (x4)
081330  -2  971  R9UBP M6GPH IO83
081330  -7  792  R9UBP EA5AR IM99 (x3)
101145 -17 1734  R9UBP RW6HP LN14 (x3)

80m

UTC    dB Audio  Message
171900  +3 1707  R9UBP RD7O KN98
172100  +5 2859  R9UBP RA4FHO LO13
172115 -17  975  RA4FHO R9UBP -03
172130  +6 2859  R9UBP RA4FHO R-16 (x2)
174800 -16  975  CQ R9UBP NO36
174945  +5 2155  R9UBP EW8CW KO52 (x3)
175145 -20  976  CQ R9UBP NO36
175200  +4 1504  R9UBP RD7O KN98
175215 -23  975  RD7O R9UBP -09
175230  +0 1504  R9UBP RD7O R-12
175245 -17  975  RD7O R9UBP RR73
175300  +1 1504  R9UBP RD7O 73

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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