R3ICU — 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: KO66

Receiver-side FT8 activity involving R3ICU, decoded by SO8OO in southeastern Poland. 6,829 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 69 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-04.

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 6,829 FT8 messages attributed to R3ICU as the transmitting token by decoded message structure across 69 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 160 m (32%) and 40 m (18%). Most decodes (52%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

6,829

Messages attributed

UTC dates decoded

694

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 2,195 80m · 3,131 40m · 1,207 20m · 228 10m · 68

First attributed message: 2026-06-06
Last attributed message: 2026-10-04 06:06 UTC

Observed FT8 message patterns

Attributed sample: 6,829 messages
Active dates: 69 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -21 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2,369, moderate (-15 to -9 dB) 2,106, strong (≥ -8 dB) 2,354.

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 R3ICU in decoded directed-looking exchanges:

RD4CAF · European Russia ×4 R2HB · European Russia ×3 R3GO · European Russia ×3 R3SV · European Russia ×3 R5AV · European Russia ×3 RA1N · European Russia ×3 RN3QTS · European Russia ×3 RO7A · European Russia ×3 RQ7O · European Russia ×3 UB1Q · European Russia ×3 UB8A · Asiatic Russia ×3 RK6MC · European Russia ×3

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 R3ICU

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: KO66 · 5,262 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,041 km (approx.)
Last such locator decoded: 2026-10-04 06:06 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	R3ICU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 06:47	40m	- / -13	LZ936BA	-2 / -	8	Partial capture
10-04 06:38	40m	- / -16	LZ936BA	-1 / -	3	Partial capture
10-04 06:35	40m	- / -5	LZ936BA	-4 / -	2	Partial capture
10-04 06:30	40m	- / -10	LZ936BA	+2 / -	2	Partial capture
10-04 06:16	40m	- / -21	IZ3NLT	+11 / -	2	Partial capture
10-04 06:14	40m	- / -15	LZ936BA	0 / -	4	Partial capture
10-04 06:08	40m	- / -20	OE/DG7CF	-1 / -	2	Partial capture
10-04 06:06	40m	- / -13	LZ936BA	0 / -	3	Partial capture
10-04 06:02	40m	-14 / -	SM0TPH	-14 / -	3	✓ Closing observed
10-04 06:00	40m	- / -10	LZ936BA	+2 / -	4	Partial capture
10-04 05:58	40m	-18 / -	HA7JDU	-16 / -	2	✓ Closing observed
10-04 05:56	40m	- / -10	LZ936BA	+6 / -	2	Partial capture
10-04 05:52	40m	- / -12	LZ936BA	+2 / -	2	Partial capture
10-04 05:45	40m	- / -9	LZ936BA	+3 / -	3	Partial capture
10-04 05:33	40m	- / -17	RV6LRE	-4 / -	2	✓ Closing fragment
10-04 05:30	40m	- / -23	DL6FBR	+14 / -	2	✓ Closing fragment
10-04 05:25	40m	- / -11	F6DZU	+8 / -	2	✓ Closing fragment
10-04 05:19	40m	- / -	TA3NK	-14 / -	2	Partial capture
10-04 05:12	40m	-16 / -14	ON5EA	-12 / -3	3	Partial capture
10-04 05:05	40m	- / -23	IU1DOF	+2 / -	2	Partial capture
10-04 05:05	40m	- / -11	PD1AIQ	+5 / -	2	✓ Closing fragment
10-04 04:51	40m	- / -11	IW4ECF	+7 / -	2	✓ Closing fragment
10-04 04:39	40m	-15 / -	S57ACD	- / -7	2	Partial capture
10-04 04:33	40m	-11 / -17	LZ1DPP	-2 / -	3	✓ Closing observed
10-04 04:30	40m	-12 / -	S57ACD	- / -19	2	Partial capture
10-04 04:29	40m	-12 / -15	LZ2TDF	-12 / -	3	✓ Closing observed
10-04 04:20	40m	- / 0	UY3LV	-13 / -	3	✓ Closing fragment
10-04 03:55	40m	- / -	SV2HTW	+14 / -	2	✓ Closing fragment
10-04 03:48	40m	- / -19	SV2HTW	-4 / -	4	Partial capture
10-04 03:32	160m	-24 / -	DK1FW	- / -	2	Partial capture
10-04 03:27	160m	-22 / -	RX3DHR	- / -	2	Partial capture
10-04 03:26	160m	-22 / -19	LY2EW	-6 / -11	4	✓ Full exchange observed
10-04 03:10	160m	-22 / -	OH7KB	- / -	2	Partial capture
10-04 03:02	160m	-11 / -12	EV1R	+9 / -11	9	✓ Full exchange observed
10-04 03:00	160m	-12 / -	RA1QEA	- / -	2	Partial capture
10-04 02:57	160m	-16 / -	OH8D	- / -	2	Partial capture
10-04 02:56	160m	-5 / -	RA1QEA	- / -	2	Partial capture
10-04 02:55	160m	-7 / -16	EW2ZC	+15 / -3	5	✓ Full exchange observed
10-04 02:53	160m	-12 / -	OH8D	- / -	2	Partial capture
10-04 02:36	160m	-7 / -	SV7BVM	- / -	2	Partial capture
10-04 02:32	160m	-4 / -	GW8DX	- / -	2	Partial capture
10-04 02:28	160m	-4 / -	OH7KB	- / -	2	Partial capture
10-04 02:22	160m	-7 / -	DG0JK	- / -	2	Partial capture
10-04 02:13	160m	-4 / -	RN3RY	-2 / -3	3	✓ Closing observed
10-04 02:07	160m	- / -	OM0RX	+4 / -	4	Partial capture
10-04 01:43	160m	- / -	OM0RX	+7 / -	4	Partial capture
10-04 01:41	160m	-6 / -	RW3BK	-6 / -4	2	✓ Closing observed
10-04 01:36	160m	-10 / -	M1DST	- / -	2	Partial capture
10-04 01:19	160m	-2 / -19	RU3FA	-10 / -9	5	✓ Full exchange observed
10-04 01:13	160m	- / -	OM0RX	+4 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
063045  -1 1918  R3ICU LZ936BA -10 (x3)
063645  -7  585  R3ICU UA3ZQN R+00
063845  -2 1919  R3ICU LZ936BA -16 (x11)

160m

UTC    dB Audio  Message
032845 -18  753  CQ QRP R3ICU KO66 (x6)
033145 -22  753  RX3DHR R3ICU KO66
033215 -24  753  DK1FW R3ICU KO66 (x2)
033315 -20  753  CQ QRP R3ICU KO66 (x3)
034245 -24  752  RA1QEA R3ICU KO66
034345 -15  752  CQ QRP R3ICU KO66 (x2)

80m

UTC    dB Audio  Message
233715 -12 1230  R3ICU DO6NI JO50
233730  -4  755  DO6NI R3ICU -19
233745 -19 1231  R3ICU DO6NI R-22
233800  -3  755  DO6NI R3ICU -19
233815  +0 1639  R3ICU F5RAV JN09
233815 -16 1230  R3ICU DO6NI R-20
233830  -6  755  DO6NI R3ICU RR73
233845 +10  370  R3ICU PA4PA JO22
233845  -4 1639  R3ICU F5RAV JN09
233900  -3  755  PA4PA R3ICU +09
233915 +13  370  R3ICU PA4PA R-04
233930  -1  755  PA4PA R3ICU RR73
233945 +13  370  R3ICU PA4PA 73
234000  -3  755  F5RAV R3ICU -11 (x2)

10m

UTC    dB Audio  Message
081845 -17 2290  R3ICU DM5KM -16 (x3)
133030 -14 1650  R3ICU EA1HTF -17 (x3)

60m

UTC    dB Audio  Message
004115 -11  761  R3ICU 9A4ZM JN86

20m

UTC    dB Audio  Message
173430  +0 1869  R3ICU RT4A -13 (x8)
175615  +0 1154  R3ICU F4ACR IN96
181545  -2 1984  R3ICU OE9DAI R-02 (x2)
153730 -12 1616  R3ICU CT1BFP IM59 (x3)
121745 -18 1786  R3ICU RA6MQ -17

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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