R1OA — 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: LP31

Receiver-side FT8 activity involving R1OA, decoded by SO8OO in southeastern Poland. 110 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-27.

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 110 FT8 messages attributed to R1OA as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (75%), followed by 80 m (24%) and 40 m (2%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

110

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 26 40m · 2 20m · 82

First attributed message: 2026-06-08
Last attributed message: 2026-08-27 14:23 UTC

Observed FT8 message patterns

Attributed sample: 110 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 12.

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 R1OA in decoded directed-looking exchanges:

CT3MD · Madeira Islands RA4CQW/P · European Russia RI1FJL · Franz Josef Land PA1GLD · Netherlands R2GBR · European Russia R5ACQ · European Russia RA3TVW · European Russia RA5AK · European Russia RA6AR · European Russia RD7KW · European Russia RT6Z · European Russia S51UN · Slovenia

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 R1OA

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: LP31 · 78 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,014 km (approx.)
Last such locator decoded: 2026-08-27 14:23 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	R1OA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 19:32	80m	- / -	RA3WY	-6 / -	2	Partial capture
10-23 19:28	80m	- / -13	RA2FU	-2 / -	2	Partial capture
10-21 16:43	40m	- / -17	RA6AR	-22 / -	2	✓ Closing fragment
10-21 16:37	40m	- / -16	LZ2WP	+4 / -	2	Partial capture
10-21 16:25	40m	- / -25	RD7KW	-2 / -	3	✓ Closing fragment
10-20 15:37	40m	- / -6	RT6Z	-4 / -	3	✓ Closing fragment
10-15 14:10	40m	- / -8	RA5AK	-16 / -	2	✓ Closing fragment
09-16 09:55	40m	- / -	R6ZL	-10 / -	2	Partial capture
08-27 14:04	20m	-10 / -	VE7ON	- / -6	3	Partial capture
08-27 13:59	20m	-8 / -	RI1FJL	- / -	2	✓ Closing fragment
08-24 18:57	80m	- / -	DO1DX	+3 / -	4	Partial capture
08-24 18:55	80m	-21 / -12	RW2Z	-6 / -	4	✓ Closing observed
08-24 18:54	80m	-23 / -18	YO8XFU	+2 / -6	8	✓ Full exchange observed
08-24 18:53	80m	-24 / -17	SV9MBH	-11 / -	5	✓ Closing observed
08-24 18:48	80m	- / -13	RO2T	-4 / -	2	✓ Closing fragment
08-22 18:08	80m	- / -10	UA4NCX	-10 / -	2	✓ Closing fragment
08-22 18:05	80m	- / -9	R1CBA	-15 / -	2	✓ Closing fragment
08-22 18:04	80m	- / -8	RA4FUT	-13 / -	3	✓ Closing fragment
08-22 17:58	80m	-14 / -8	RA6LTD	-12 / -3	6	✓ Full exchange observed
08-22 17:56	80m	-11 / -11	RA3DEP	-8 / 0	5	✓ Full exchange observed
08-22 17:54	80m	-14 / -17	R3DMS	0 / 0	5	✓ Full exchange observed
08-22 17:54	80m	-15 / -	RD3AD	-9 / -1	3	✓ Closing observed
08-22 17:51	80m	-14 / -	R1TET	- / -2	3	✓ Closing fragment
08-22 17:49	80m	-15 / -6	R4UA	-6 / +2	5	✓ Full exchange observed
08-22 05:44	20m	-17 / -24	CT3MD	+3 / -7	5	✓ Full exchange observed
08-22 05:41	20m	-10 / -	RA4CQW/P	- / -18	6	✓ Closing fragment
08-15 21:20	40m	- / -18	S51UN	-17 / -	3	✓ Closing fragment
08-15 21:15	40m	- / -9	S51UN	-12 / -	2	Partial capture
08-15 21:11	40m	- / -	PA1GLD	-9 / -	2	✓ Closing fragment
08-15 21:03	40m	- / -	UI6O	-10 / -	5	Partial capture
08-15 21:00	40m	- / -22	UA2FBW	-1 / -	4	✓ Closing fragment
08-15 20:53	40m	- / -17	RN6MA	-16 / -	2	Partial capture
08-15 20:50	40m	- / -	PA1GLD	-8 / -	2	Partial capture
08-15 20:23	80m	- / -8	R5KH	-6 / -	6	✓ Closing fragment
08-15 20:23	80m	- / -5	RD2T	-14 / -	3	✓ Closing fragment
08-15 20:21	80m	- / -	RC6BB	-17 / -	2	Partial capture
08-10 18:00	40m	- / -	DL3MIB	-6 / -	7	Partial capture
08-10 17:45	40m	- / -7	RJ6B	-1 / -	2	Partial capture
08-10 17:13	40m	- / -18	R2GBR	-16 / -	2	✓ Closing fragment
08-10 16:47	40m	- / -10	R3WDW	-10 / -	4	Partial capture
08-10 16:36	40m	- / -	R5ACQ	-20 / -	2	✓ Closing fragment
08-03 08:30	20m	- / -9	IU2THY	-5 / -	4	Partial capture
08-03 08:28	20m	- / -1	F1EKA	-18 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
185600  -8 1834  R1OA RW2Z R-12
185615 -21 1939  RW2Z R1OA RR73
185630  +4 1939  R1OA YO8XFU R-18
185630  -6 1834  R1OA RW2Z 73
185645 -24 1939  YO8XFU R1OA RR73
185700  +2 1939  R1OA YO8XFU 73
185700  +0  469  R1OA DO1DX JO30 (x4)
192830  -5  566  R1OA RA2FU -13 (x2)
192930  -9 1768  R1OA R6DOP R-16
193230  -7 1452  R1OA RA3WY KO81 (x2)

40m

UTC    dB Audio  Message
141045 -15 2196  R1OA RA5AK -08 (x2)
153530 -15 1986  R1OA UN9LCW R-14
153700  -4 3004  R1OA RT6Z KN98 (x3)
153830  -2 1320  R1OA OH3MB KP20
153900 -18 1822  R1OA UB6LLI R-14
162530  -1 2627  R1OA RD7KW KN75 (x3)
163730  +4 2237  R1OA LZ2WP KN23 (x2)
164330 -22 1416  R1OA RA6AR R-17 (x2)

20m

UTC    dB Audio  Message
054215 -10 2294  RA4CQW/P R1OA R-18 (x4)
054445 -17  982  CT3MD R1OA -07
054500  +4  982  R1OA CT3MD IM13
054515 -17  983  CT3MD R1OA -09
054530  +2  982  R1OA CT3MD R-24 (x2)
135915  -9  384  RI1FJL R1OA LP31 (x2)
140430 -12  384  VE7ON R1OA LP31 (x3)
142315 -13 1028  KF0QR R1OA LP31

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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