R4CAS — 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

Receiver-side FT8 activity involving R4CAS, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-11-01 and 2026-11-04.

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 15 FT8 messages attributed to R4CAS as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 40 m (33%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

80m · 10 40m · 5

First attributed message: 2026-11-01
Last attributed message: 2026-11-04 04:36 UTC

Observed FT8 message patterns

Attributed sample: 15 messages
Active dates: 3 UTC dates
Estimated median S/N: -18 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 3.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with R4CAS in decoded directed-looking exchanges:

RD3FY · European Russia RN3N · European Russia YO4NF · Romania 4O7CC · Montenegro R4ADE · European Russia R8PG · Asiatic Russia RA3WY · European Russia RA9ACA · Asiatic Russia RD9T · Asiatic Russia RK6MC · European Russia RO5A · European Russia RT4A · 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.

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	R4CAS S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 04:37	40m	- / -	RA6LTD	-19 / -	2	Partial capture
11-04 04:31	80m	- / -18	RO5A	-2 / -	2	✓ Closing fragment
11-04 04:29	80m	- / -18	4O7CC	+11 / -	2	✓ Closing fragment
11-03 15:46	40m	- / -	DH2NJS	-15 / -	2	Partial capture
11-03 15:44	40m	- / -6	YO4NF	0 / -	3	✓ Closing fragment
11-03 15:35	40m	-16 / -	UI6O	- / -3	2	Partial capture
11-03 15:33	80m	-20 / -10	S54E	+8 / -	3	✓ Closing observed
11-03 15:18	80m	-20 / 0	UN0GY	-18 / -	3	✓ Closing observed
11-01 16:55	80m	- / -7	RA3WY	-9 / -	4	✓ Closing fragment
11-01 16:50	80m	- / -3	YO9HP	+2 / -	3	✓ Closing fragment
11-01 16:49	80m	-13 / +2	RK6MC	0 / -	4	✓ Closing observed
11-01 16:47	80m	-19 / -	RT4A	-19 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
153515 -18 1036  UI6O R4CAS -03 (x2)
153615 -23 1702  RT2D R4CAS -18
153815  -6 2783  RN3N R4CAS RR73
154145 -18 1942  R4CAS DH2NJS JO50
154330 -11 1249  R4CAS RX9WM R-14
154400  -2 1249  R4CAS YO4NF -06 (x3)
154615 -15 1941  R4CAS DH2NJS JO50 (x2)
043645  -5 2934  RD3FY R4CAS RR73
043700 -22 2153  R4CAS RA6LTD +12 (x2)

80m

UTC    dB Audio  Message
150900 -18 1604  R9CS/P R4CAS -05
151030 -19 1776  RA9ACA R4CAS RR73
151400  -3 2371  R4CAS RN3TT R-08
151430 -16 2310  RD9T R4CAS RR73
151845 -18 2453  R4CAS UN0GY R+00
151900 -20 2453  UN0GY R4CAS RR73
151915 -19 2453  R4CAS UN0GY 73
153315 +10 1227  R4CAS S54E R-10
153330 -20 1226  S54E R4CAS RR73
153345  +7 1227  R4CAS S54E 73
042900 +11  388  R4CAS 4O7CC R-18 (x2)
043130  -1  847  R4CAS RO5A R-18 (x2)
043215 -20 2276  R9SCJ R4CAS -18

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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