RA9CUA — 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: Asiatic Russia Most frequent locator attributed to this token: MO07

Receiver-side FT8 activity involving RA9CUA, decoded by SO8OO in southeastern Poland. 68 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-06 and 2026-10-03.

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 68 FT8 messages attributed to RA9CUA 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 (41%), followed by 40 m (40%) and 10 m (19%). Several six-hour UTC windows tied for the largest share (60%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (72%); the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 27 20m · 28 10m · 13

First attributed message: 2026-08-06
Last attributed message: 2026-10-03 12:11 UTC

Observed FT8 message patterns

Attributed sample: 68 messages
Active dates: 8 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -18 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 5.

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 RA9CUA in decoded directed-looking exchanges:

PD0HLA · Netherlands ×2 VJ6X · Australia ×2 A61FJ · United Arab Emirates CR7BRV · Portugal UA9MA · Asiatic Russia 4Z5PT · Israel BG7BVI · China CT3MD · Madeira Islands F5IXN · France IK4LZH · Italy R3KLA · European Russia RA1TR · 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 RA9CUA

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: MO07 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,670 km (approx.)
Last such locator decoded: 2026-10-03 12:10 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	RA9CUA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-13 18:23	40m	- / -19	IZ6BYS	-13 / -	2	Partial capture
10-13 18:13	40m	- / -	SV1MOZ	-16 / -	3	Partial capture
10-13 18:13	40m	- / -5	OS4K	-5 / -	4	Partial capture
10-13 18:12	40m	- / -17	EU6UE	-12 / -	2	Partial capture
10-04 13:29	10m	- / -19	UA9MA	-6 / -	2	✓ Closing fragment
10-03 12:08	10m	-13 / -20	CR7BRV	0 / -11	9	✓ Full exchange observed
10-03 11:57	10m	-14 / -	A61FJ	- / -13	2	✓ Closing fragment
09-03 16:43	40m	- / -9	SP5LST	-7 / -	3	✓ Closing fragment
08-30 17:51	40m	-10 / -4	UI6O	-4 / -	3	Partial capture
08-30 17:35	40m	-15 / -	YO4LUP	- / -	2	Partial capture
08-30 17:32	40m	- / -5	EU6UE	-6 / -	2	✓ Closing fragment
08-30 17:29	40m	-14 / -	F5RMK	- / -	3	Partial capture
08-30 17:26	40m	-17 / -	UA3POG	-14 / -2	2	✓ Closing observed
08-30 17:24	40m	-14 / -	R1BED	- / -	2	✓ Closing fragment
08-30 17:24	40m	- / -6	RA3TKS	+4 / -	2	Partial capture
08-30 17:16	40m	- / -2	UA4HBJ	-6 / -	2	✓ Closing fragment
08-30 17:13	40m	-17 / -	R3UDU	- / +2	3	✓ Closing fragment
08-30 17:11	40m	-11 / -8	R3XBS	+4 / -	2	Partial capture
08-29 14:12	20m	-13 / -3	4Z5PT	-7 / -4	4	✓ Full exchange observed
08-28 07:50	10m	- / -	9A3K	-9 / -	3	Partial capture
08-25 20:30	40m	-14 / -	LZ4VR	-6 / -	9	✓ Closing observed
08-25 20:29	40m	-16 / -21	VJ6X	-17 / -19	5	✓ Full exchange observed
08-25 19:14	40m	- / -4	RX7KIR	-4 / -	2	✓ Closing fragment
08-25 19:11	40m	- / -7	RK6OV	-4 / -	2	✓ Closing fragment
08-25 19:03	40m	-13 / -	5A1AL	- / -	2	Partial capture
08-25 18:28	40m	- / -13	RV3YN	-4 / -	4	✓ Closing fragment
08-25 18:28	40m	- / -	Z34K	-8 / -	2	Partial capture
08-25 13:09	20m	-14 / -	JL1JAH	- / -11	2	Partial capture
08-25 13:07	20m	0 / -1	R2GBR	-21 / 0	2	Partial capture
08-14 07:39	20m	- / -22	UA4CKN	-9 / -	3	✓ Closing fragment
08-14 07:37	20m	- / -10	IK4LZH	+6 / -	2	✓ Closing fragment
08-14 05:44	20m	-19 / -	RA1TR	- / -20	4	✓ Closing fragment
08-11 18:18	40m	-13 / -5	9A4ZM	-17 / -	2	✓ Closing observed
08-11 18:18	40m	- / -	ON8WI	-12 / -	3	✓ Closing fragment
08-11 18:16	40m	-16 / -11	SV2AEL	-12 / -	4	✓ Closing observed
08-11 18:11	40m	-11 / -	DS5USH	- / -4	3	✓ Closing fragment
08-11 17:58	20m	-12 / -15	PD0HLA	+4 / -12	7	✓ Full exchange observed
08-11 17:57	20m	-11 / -2	TF4M	-14 / -	2	Partial capture
08-11 17:55	20m	-7 / -1	F5IXN	-8 / 0	4	✓ Full exchange observed
08-11 17:54	20m	-8 / -2	R3KLA	-4 / +9	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
164345  -6 2180  RA9CUA SP5LST KO02 (x3)
181200 -14 2339  RA9CUA EU6UE -17 (x2)
181315  -5 2681  RA9CUA OS4K -05
181345 -15  229  RA9CUA SV1MOZ KM17
181345  -5 2681  RA9CUA OS4K -05
181415 -15  230  RA9CUA SV1MOZ KM17
181415  -7 2681  RA9CUA OS4K -05
181445 -17  230  RA9CUA SV1MOZ KM17
181445  -3 2681  RA9CUA OS4K -05
182345 -11 1212  RA9CUA IZ6BYS R-19 (x2)
190315 -11  372  RA9CUA R2BPS KO85

10m

UTC    dB Audio  Message
115700 -15 1585  A61FJ RA9CUA R-13 (x2)
120130 -13  489  VU2CPL RA9CUA MO07 (x2)
120830 -14  905  CR7BRV RA9CUA MO07 (x4)
121045  -2  905  RA9CUA CR7BRV -20
121100 -15  905  CR7BRV RA9CUA R-11
121115  +0  905  RA9CUA CR7BRV RR73
121130 -16  904  CR7BRV RA9CUA R-11
121145  +2  905  RA9CUA CR7BRV RR73
132900  -9  799  RA9CUA UA9MA -19 (x2)

20m

UTC    dB Audio  Message
073815  +3  463  RA9CUA IK4LZH RR73
073915  -4  621  RA9CUA UA4CKN -22 (x3)
130645 -10 1412  BG4UCZ RA9CUA R-13
130730 -21 1412  RA9CUA R2GBR -01
130745  +0 1412  R2GBR RA9CUA R+00
130900 -15 1411  JL1JAH RA9CUA R-11 (x2)
131345 -13 3068  RA9CUA OH6IH -08
141200 -11 1024  4Z5PT RA9CUA MO07
141215  -5 1025  RA9CUA 4Z5PT -03
141230 -15 1024  4Z5PT RA9CUA R-04
141245  -9 1025  RA9CUA 4Z5PT RR73
171215 -10 2342  BG7BMG RA9CUA MO07

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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