R9CS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: MO06

Receiver-side FT8 activity involving R9CS, decoded by SO8OO in southeastern Poland. 197 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-07.

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 197 FT8 messages attributed to R9CS as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (54%), followed by 80 m (28%) and 40 m (13%). Most decodes (90%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

197

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 107 80m · 56 40m · 25 20m · 5 10m · 4

First attributed message: 2026-06-06
Last attributed message: 2026-10-07 16:33 UTC

Observed FT8 message patterns

Attributed sample: 197 messages
Active dates: 17 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 36, moderate (-15 to -9 dB) 59, strong (≥ -8 dB) 102.

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 R9CS in decoded directed-looking exchanges:

DL1UDO · Fed. Rep. of Germany IK0HBN · Italy R0ADK · Asiatic Russia R1AO · European Russia R2AKN · European Russia R2SN · European Russia R3LDK · European Russia RA3LBW · European Russia UA4LDP · European Russia UA6XY · European Russia DL1CF · Fed. Rep. of Germany RA6FRI · 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 R9CS

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: MO06 · 105 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,670 km (approx.)
Last such locator decoded: 2026-09-25 11:26 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	R9CS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-05 19:22	80m	- / -	R2OM	-10 / -	4	Partial capture
10-05 19:22	80m	-12 / -	R9CS/P	- / +2	3	Partial capture
09-25 11:25	10m	-8 / -	DL1UDO	- / -7	4	✓ Closing fragment
09-24 17:55	160m	- / -19	IZ7NLJ	+6 / -	2	Partial capture
09-24 17:38	160m	-12 / -12	R3PA	-24 / -11	2	Partial capture
09-22 18:23	160m	- / -18	EV1R	-8 / -	2	Partial capture
09-20 18:49	160m	- / -20	R3LDK	-17 / -	3	✓ Closing fragment
09-20 18:47	160m	-16 / -	UA6HFI	- / -	2	Partial capture
09-20 18:43	160m	-18 / -	RD7O	- / -25	2	Partial capture
09-20 18:39	160m	- / -17	IK0HBN	0 / -	3	✓ Closing fragment
09-20 18:39	160m	-14 / -	R2FCT	- / -	2	Partial capture
09-20 18:36	160m	-18 / -	UA6XY	-21 / -12	5	✓ Closing observed
09-20 18:33	160m	-24 / -	4L6EZ	- / -	2	Partial capture
09-20 16:51	160m	-14 / -	R0ADK	- / -8	3	✓ Closing fragment
09-18 02:43	40m	-16 / -12	RA6FRI	-2 / +4	3	✓ Full exchange observed
09-18 02:11	80m	-13 / -3	RW3VX	-5 / +6	5	✓ Full exchange observed
09-18 01:06	80m	-6 / -	IQ0AAI	- / -	2	Partial capture
07-26 18:56	40m	-6 / +3	R5DC	-14 / -7	3	Partial capture
07-26 18:56	40m	-7 / -1	DL1CF	-10 / -13	6	✓ Full exchange observed
07-26 18:53	40m	-6 / -5	RL3P	-4 / +6	5	✓ Full exchange observed
07-26 18:52	40m	-4 / -	<...>	- / -6	2	Partial capture
07-26 18:49	40m	-6 / -	IK2VFQ	- / -6	4	Partial capture
07-26 18:46	40m	-10 / -	UB8AHK	- / -	2	Partial capture
07-25 20:18	160m	-7 / -3	RA3LBW	-7 / -16	7	✓ Full exchange observed
07-25 20:16	160m	-7 / -2	R2SN	-21 / -8	4	✓ Full exchange observed
07-25 20:10	160m	-7 / -	R1AO	- / -15	3	✓ Closing fragment
07-10 18:45	80m	- / -	TA7TET	-19 / -	2	Partial capture
07-10 18:41	80m	-1 / -8	R6ZEJ	+6 / -3	8	✓ Full exchange observed
07-10 18:39	80m	+2 / -	RA3ZOM	+6 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
184715 -13 2303  UA6HFI R9CS MO06 (x2)
184930 -21 2132  R9CS R3LDK -20 (x3)
182345  -5  726  R9CS EV1R -18 (x2)
173830 -24 1404  R9CS R3PA -12
173845 -12 2502  R3PA R9CS R-11
174800 -20 1158  R9CS RZ3DUB -12
175515  +6  436  R9CS IZ7NLJ -19 (x3)
003545  -4 1356  R9CS RDA?
163315 -15 2718  R9CS/P R9CS +10

80m

UTC    dB Audio  Message
021115 -15  939  CQ R9CS MO06
021130  -1  938  R9CS RW3VX KO96
021145  -8  938  RW3VX R9CS +06
021200  -8  938  R9CS RW3VX R-03
021215 -18  938  RW3VX R9CS RR73
021230  -6  938  R9CS RW3VX 73
154900 -19 2140  R9CS RD9M/3 -09
155000 -20 1406  R9CS R0ADK NO56
192200 -12 3120  R9CS/P R9CS +02 (x2)
192245 -14 2740  R9CS R2OM LO00
192300 -13 3119  R9CS/P R9CS +12
192315 -10 2740  R9CS R2OM LO00 (x3)

10m

UTC    dB Audio  Message
112530 -11 2691  DL1UDO R9CS MO06 (x4)

40m

UTC    dB Audio  Message
185500  -4  289  R9CS RL3P RR73
185515  -7  289  RL3P R9CS 73
185600  -6 2546  R9CS DL1CF JO42
185615  -8  290  R5DC R9CS MO06
185630 -14 2514  R9CS R5DC +03
185645  -5  289  R5DC R9CS R-07
185800 -12 2601  R9CS DL1CF JO42
185815  -8  289  DL1CF R9CS -13
185830 -13 2600  R9CS DL1CF R-01
185845  -7  289  DL1CF R9CS -13 (x2)
024345  -3  975  R9CS RA6FRI -12
024400 -16  975  RA6FRI R9CS R+04
024415  -2  975  R9CS RA6FRI RR73
024545 -24 1691  R9CS RT8T -01

20m

UTC    dB Audio  Message
134845 -14 2374  BA8BLK R9CS R+02
160630 -10 2753  BH4GWF R9CS -05

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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