R1CAA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KP51

Receiver-side FT8 activity involving R1CAA, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 160m, 80m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-09-17.

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 42 FT8 messages attributed to R1CAA as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (60%), followed by 20 m (31%) and 80 m (10%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (64%); the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 25 80m · 4 20m · 13

First attributed message: 2026-06-18
Last attributed message: 2026-09-17 17:14 UTC

Observed FT8 message patterns

Attributed sample: 42 messages
Active dates: 9 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -13 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 14.

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 R1CAA in decoded directed-looking exchanges:

DL8LE · Fed. Rep. of Germany R1MA · European Russia RA3BY · European Russia RG7M · European Russia RI1FJZ · Franz Josef Land RK6MC · European Russia RM3TO · European Russia RM3ZR · European Russia RN3QTS · European Russia RW1CW · European Russia UA1ANA · European Russia UA3PY · 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 R1CAA

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: KP51 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,406 km (approx.)
Last such locator decoded: 2026-09-16 18:40 UTC

Other locator fields attributed to this token: KO50 (1).

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	R1CAA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 17:13	160m	-13 / -	RI1FJZ	- / -14	3	✓ Closing fragment
09-01 20:23	160m	-14 / -	RW1CW	-13 / -	6	✓ Closing observed
08-30 19:04	160m	-8 / +5	RM3TO	-17 / -	2	✓ Closing observed
08-30 19:03	160m	-7 / -	UA4CKN	- / -17	2	✓ Closing fragment
08-30 19:01	160m	-7 / -9	UA3PY	0 / -5	6	✓ Full exchange observed
08-30 19:00	160m	-8 / -10	DL8LE	+8 / -20	7	✓ Full exchange observed
08-30 18:59	160m	-8 / -14	RG7M	+10 / -3	6	✓ Full exchange observed
08-30 18:59	160m	-12 / +2	YL3CW	+3 / 0	5	✓ Full exchange observed
08-30 18:56	160m	-12 / -6	RK6MC	+7 / -	4	✓ Closing observed
08-30 18:56	160m	-12 / 0	UA1ANA	-8 / -2	5	✓ Full exchange observed
08-30 18:52	160m	- / -	RN3QTS	-9 / -	3	✓ Closing fragment
08-30 18:52	160m	-9 / -	UD1I	-12 / -	2	✓ Closing observed
08-30 18:50	160m	- / +3	RA3BY	-21 / -	2	✓ Closing fragment
08-30 18:50	160m	-10 / -11	RM3ZR	-1 / -10	7	✓ Full exchange observed
08-30 18:49	160m	-10 / +5	R1MA	-10 / -	4	✓ Closing observed
08-30 09:12	20m	- / -8	RC6OU	+16 / -	2	✓ Closing fragment
08-30 09:10	20m	- / +8	R6OP	+6 / -	3	✓ Closing fragment
08-27 18:45	80m	- / -	IU6STP	-6 / -	6	Partial capture
08-27 18:42	80m	-8 / -	RI1FJL	- / -23	2	Partial capture
08-27 18:32	80m	- / -18	IU6STP	-4 / -	15	Partial capture
08-27 18:26	80m	- / -13	R3AT	-3 / -	3	Partial capture
08-26 11:40	20m	- / -	G7RCQ	-10 / -	5	Partial capture
07-05 16:02	40m	- / -	DG0NE	-21 / -	3	Partial capture
06-25 18:33	40m	- / -13	RC6OX	-13 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
190330  -1 2302  R1CAA UA3PY 73
190345  -7 2302  UA4CKN R1CAA R-17
190400 -17  952  R1CAA RM3TO R+05
190415  -7 2302  UA4CKN R1CAA 73
190445  -8 2302  RM3TO R1CAA RR73
202315 -14 2581  RW1CW R1CAA KP51
202400 -17 1962  R1CAA RW1CW RR73 (x5)
202700  +1 2581  OH2FNR R1CAA KP51
171315 -14 1691  RI1FJZ R1CAA KO50 (x3)

80m

UTC    dB Audio  Message
183730  -2 2728  R1CAA IU6STP JN63 (x5)
184245  -7 2678  RI1FJL R1CAA R-23 (x2)
184500  -8 2677  R1CAA IU6STP JN63 (x6)
183900  +0 2178  R1CAA RW1AI -04
184030 -20 2037  R6ON R1CAA KP51

20m

UTC    dB Audio  Message
190930  -7  564  R1CAA UD6AWJ KN95
114045  -9 1834  R1CAA G7RCQ IO91 (x5)
091030  +8 1243  R1CAA R6OP +08 (x3)
091230 +19 2166  R1CAA RC6OU R-08 (x2)

40m

UTC    dB Audio  Message
183345 -12 2525  R1CAA RC6OX KN88 (x2)
160200 -21 1429  R1CAA DG0NE JO63 (x3)

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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