RA5CO — 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: KO94

Receiver-side FT8 activity involving RA5CO, decoded by SO8OO in southeastern Poland. 218 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-10-10.

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 218 FT8 messages attributed to RA5CO as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (84%), followed by 80 m (8%) and 20 m (8%). Most decodes (78%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

218

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 17 40m · 184 20m · 17

First attributed message: 2026-07-02
Last attributed message: 2026-10-10 18:41 UTC

Observed FT8 message patterns

Attributed sample: 218 messages
Active dates: 9 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 44, moderate (-15 to -9 dB) 96, strong (≥ -8 dB) 78.

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 RA5CO in decoded directed-looking exchanges:

R1ZH · European Russia ×2 UA9LKL · Asiatic Russia ×2 IK2WJT · Italy MI0JZZ · Northern Ireland MI0NWA · Northern Ireland EW2ZC · Belarus EW8AAC · Belarus F5RRS · France HA7TM · Hungary IZ6OUX · Italy MW0USK · Wales OZ1KZX · Denmark

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 RA5CO

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: KO94 · 88 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,273 km (approx.)
Last such locator decoded: 2026-10-10 18:32 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	RA5CO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-10 18:42	80m	- / -14	UA3ECJ	-8 / -	2	Partial capture
10-10 18:40	80m	-8 / -10	RW3YS	+4 / -	3	✓ Closing observed
10-10 18:32	80m	-5 / -	R4FFQ	- / +9	3	✓ Closing fragment
10-10 18:25	80m	-22 / -16	RX3DTN	+3 / -	4	Partial capture
10-10 18:23	80m	- / -	UA3UBV	-8 / -	2	Partial capture
10-10 18:12	80m	-16 / -2	R2SBI	-7 / -	4	✓ Closing observed
10-10 18:11	80m	-7 / -	R3MBV	- / -3	2	✓ Closing fragment
10-10 18:08	80m	-3 / -8	RA1TR	-8 / -	3	✓ Closing observed
09-04 19:58	40m	- / -	RO7A	-2 / -	2	Partial capture
09-03 17:02	40m	- / -11	R3ICU	-10 / -	2	✓ Closing fragment
08-27 15:57	40m	-10 / 0	UA1RC	-17 / -	2	✓ Closing observed
08-27 15:56	40m	-11 / +5	R3DMK	-18 / -13	6	✓ Full exchange observed
08-27 15:47	40m	- / -1	R1ZH	-22 / -	2	✓ Closing fragment
08-27 15:47	40m	- / -1	RO3ZR	-14 / -	2	✓ Closing fragment
08-27 15:44	40m	- / -15	UA6HJT	+6 / -	3	✓ Closing fragment
08-27 15:43	40m	-12 / -	UA9LKL	- / -2	2	✓ Closing fragment
08-27 15:41	40m	- / -	RC6OT	+4 / -	3	Partial capture
08-27 15:33	40m	-11 / -	UT5ZC	- / -	2	Partial capture
08-27 15:18	40m	-10 / -	R5GG	- / -	2	Partial capture
08-27 15:15	40m	-12 / -	RV3TV	- / -	2	Partial capture
08-27 15:14	40m	-12 / -	UN9LBC	- / -	2	Partial capture
08-27 15:10	40m	-16 / -8	RN5AA	-16 / -	3	✓ Closing observed
08-27 15:04	40m	-16 / +4	UA3QRH	-8 / -	4	✓ Full exchange observed
08-27 15:01	40m	-11 / -3	UB3LBU	-7 / -4	3	Partial capture
08-27 15:01	40m	-15 / -3	R2GBR	-11 / -	4	✓ Full exchange observed
08-27 14:56	40m	-14 / -	UA9UIS	- / -13	2	Partial capture
08-27 14:53	40m	-12 / -	R4PEP	- / -10	3	✓ Closing fragment
08-27 14:53	40m	- / -	RC6OT	+3 / -	9	Partial capture
08-27 14:51	40m	-15 / -	UA9LKL	- / -	2	✓ Closing fragment
08-27 14:38	40m	- / -2	R3GI	-11 / -	3	✓ Closing fragment
08-26 18:32	40m	-9 / -	RC3DN	- / -	2	Partial capture
08-26 18:29	40m	-8 / +1	RA3ZT/QRP	-11 / +6	3	Partial capture
08-26 18:27	40m	- / -3	RA3VLZ	-11 / -	2	✓ Closing fragment
08-26 18:25	40m	- / -	RC6OX	+3 / -	3	Partial capture
08-26 18:24	40m	-16 / -	HB0/HB9FXF	- / -3	2	Partial capture
08-26 18:22	40m	+2 / +2	OZ1KZX	+8 / +9	3	✓ Full exchange observed
08-26 18:19	40m	-4 / -	UA1ZQN	- / +1	2	✓ Closing fragment
08-26 18:14	40m	+6 / -	BG2GWN	- / -18	2	Partial capture
08-26 18:12	40m	- / -4	RA3YDA	-14 / -	2	✓ Closing fragment
08-26 18:12	40m	- / -	RT2H	+8 / -	3	Partial capture
08-26 18:11	40m	-14 / -	R1LP	- / +1	2	✓ Closing fragment
08-26 18:09	40m	-16 / -	R2APQ	-9 / -4	5	✓ Closing observed
08-26 18:06	40m	-6 / -20	R2EA/P	-6 / -10	4	✓ Full exchange observed
08-26 17:56	40m	- / -11	UA3UBV	-12 / -	3	✓ Closing fragment
08-26 17:38	40m	-6 / -	UA3IDQ	- / -6	2	Partial capture
08-26 17:22	40m	- / -	UB4FGK	-9 / -	3	Partial capture
08-26 17:16	40m	-10 / -	R1ZH	- / +3	3	✓ Closing fragment
08-26 17:12	40m	- / -15	R3DLZ	-19 / -	3	✓ Closing fragment
08-26 17:08	40m	- / -17	UA1AEL	-10 / -	2	✓ Closing fragment
08-26 16:41	40m	-8 / -	RC9WC	- / +4	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
154800 -20 1703  RA5CO R1ZH RR73
155645 -18 1058  RA5CO R3DMK RR73
155700 -17 1058  R3DMK RA5CO 73
155715 -17 1058  RA5CO UA1RC +00
155800 -10 1058  UA1RC RA5CO 73
155830  -3 1058  R3DMK RA5CO KO94
155845 -17 1058  RA5CO R3DMK +05
155900  -8 1058  R3DMK RA5CO R-13 (x2)
170230  -8 1141  RA5CO R3ICU -11 (x2)
150015 -22 1640  RA5CO RT1I RR73
195815  -9 2402  RA5CO RO7A KN95 (x2)
185930 -18  895  RA5CO OD5ZZ -19

80m

UTC    dB Audio  Message
182315  -9 2293  RA5CO UA3UBV LO07 (x2)
182515 -22  942  RX3DTN RA5CO KO94
182530  +4  942  RA5CO RX3DTN -16 (x3)
183030 -14 1323  RA5CO R4HLM -17
183200  -5 1105  R4FFQ RA5CO KO94 (x3)
184015  +5 1728  RA5CO RW3YS -10 (x2)
184100  -8 1728  RW3YS RA5CO 73
184215  -6 1888  RA5CO UA3ECJ -14 (x2)

20m

UTC    dB Audio  Message
061330 -19 1167  RA5CO SES/IW2OEF -17
062400 -23 1637  RA5CO YR50NADIA -05
062600  -9  528  RA5CO IK2WJT RRR (x2)
085700  +0  612  RA5CO MI0NWA -16 (x2)
090145 -12  827  RA5CO MI0JZZ RR73

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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