RC9A — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: MO04

Receiver-side FT8 activity involving RC9A, decoded by SO8OO in southeastern Poland. 189 FT8 messages attributed to this token as transmitter, on 160m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-01 and 2026-08-29.

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 189 FT8 messages attributed to RC9A as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 40 m (19%) and 160 m (3%). Most decodes (69%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

189

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

160m · 6 40m · 36 20m · 147

First attributed message: 2026-08-01
Last attributed message: 2026-08-29 21:59 UTC

Observed FT8 message patterns

Attributed sample: 189 messages
Active dates: 3 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -22 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 90, moderate (-15 to -9 dB) 72, strong (≥ -8 dB) 27.

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 RC9A in decoded directed-looking exchanges:

RZ6CO · European Russia ×2 CT1BFP · Portugal DG3YDE · Fed. Rep. of Germany G0OFD · England IS0KNG · Sardinia IU5TPM · Italy IZ8EDI · Italy K4RGN · United States LA0FA · Norway PD0HLA · Netherlands PD1B · Netherlands PY2ED · Brazil

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 RC9A

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: MO04 · 127 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,682 km (approx.)
Last such locator decoded: 2026-08-29 21:59 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	RC9A S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 13:44	20m	-16 / -8	RA0SCZ	-5 / -	11	Partial capture
08-02 04:04	20m	-13 / -	RZ4AZ	-15 / +4	2	Partial capture
08-02 04:01	20m	-14 / -1	RZ6CO	-6 / -8	5	✓ Full exchange observed
08-02 02:06	20m	-20 / -	V31DL	-7 / 0	2	Partial capture
08-02 02:02	20m	- / -	KA1DCB	-15 / -	2	Partial capture
08-02 01:57	20m	- / -	V31DL	-10 / -	2	Partial capture
08-02 01:43	20m	-18 / -	EA3KS	- / -13	3	Partial capture
08-02 01:18	40m	- / +7	RL3QGD	-14 / -	3	✓ Closing fragment
08-02 01:14	40m	- / -5	RZ1AS	-14 / -	2	Partial capture
08-01 17:50	40m	- / -	DJ1TU	-19 / -	3	Partial capture
08-01 17:49	40m	-21 / -	RA6ZD	-13 / -	2	✓ Closing observed
08-01 17:49	40m	- / -	R3DFC	-2 / -	2	Partial capture
08-01 17:46	40m	-18 / -22	PA3BRB	-18 / -10	7	Partial capture
08-01 17:28	40m	- / -5	YT7DX	-14 / -	3	✓ Closing fragment
08-01 17:26	40m	- / -	R3EDI	-16 / -	3	✓ Closing fragment
08-01 17:13	40m	- / -4	RZ6CO	-20 / -	2	✓ Closing fragment
08-01 17:10	40m	- / -	DL6CGN	-17 / -	2	Partial capture
08-01 17:08	40m	- / +6	R2SN	-18 / -	2	✓ Closing fragment
08-01 17:03	40m	-21 / -3	RN3ZBX	-9 / -	4	✓ Closing observed
08-01 16:57	40m	-24 / -3	E70SZ	-19 / -	5	✓ Closing observed
08-01 16:51	40m	- / -	E70SZ	-22 / -	2	Partial capture
08-01 16:43	40m	- / -5	R7KM	-18 / -	3	✓ Closing fragment
08-01 16:37	40m	- / -6	R7OF	-19 / -	3	✓ Closing fragment
08-01 16:28	20m	-7 / -20	IS0KNG	-13 / -13	5	✓ Full exchange observed
08-01 16:27	20m	-4 / -	RA6OD	- / +5	2	✓ Closing fragment
08-01 16:25	20m	-6 / -	G0OFD	-19 / -7	5	✓ Closing observed
08-01 16:25	20m	-4 / -	RW3DDZ	- / 0	2	✓ Closing fragment
08-01 16:23	20m	- / -	UB4HVA	-14 / -	2	Partial capture
08-01 16:21	20m	-11 / -	RV3DBV	- / +1	3	✓ Closing fragment
08-01 16:18	20m	-8 / -21	R4CI	-12 / -6	5	✓ Full exchange observed
08-01 16:16	20m	-9 / -	DG3YDE	- / -17	3	✓ Closing fragment
08-01 16:14	20m	- / -	G0OFD	-18 / -	2	Partial capture
08-01 16:13	20m	- / -	F1GFY	-20 / -	2	Partial capture
08-01 16:12	20m	- / -	TA3F	-20 / -	2	Partial capture
08-01 16:11	20m	- / -13	EA3FYO	-2 / -	2	Partial capture
08-01 16:07	20m	-11 / +1	IU5TPM	-17 / -	5	✓ Closing observed
08-01 16:03	20m	- / -12	UB6HJZ	-18 / -	3	Partial capture
08-01 16:00	20m	-15 / -	CT1BFP	-20 / -14	4	✓ Closing observed
08-01 15:52	20m	-10 / -4	IW5ABF	-21 / -9	8	Partial capture
08-01 15:50	20m	-18 / -	PD1B	- / -3	2	✓ Closing fragment
08-01 15:40	20m	-15 / -	DL1R	-7 / -2	8	Partial capture
08-01 15:39	20m	-18 / -	EI2FS	- / -12	2	Partial capture
08-01 15:36	20m	- / -	DK8HC/P	-10 / -	3	Partial capture
08-01 15:36	20m	-10 / -1	IZ8EDI	-22 / -4	4	✓ Full exchange observed
08-01 15:33	20m	-9 / -	IW5ABF	- / -13	3	Partial capture
08-01 12:06	20m	- / -	F1PPH	-22 / -	3	Partial capture
08-01 12:03	20m	-21 / -2	R6LQU	-17 / -	4	✓ Closing observed
08-01 11:50	20m	- / -7	G7RCQ	-17 / -	4	Partial capture
08-01 11:49	20m	-21 / -16	PD0HLA	-11 / -11	6	✓ Full exchange observed
08-01 11:48	20m	- / +10	RC6AA	-13 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
215630 -12 1846  CQ WW RC9A MO04 (x6)

20m

UTC    dB Audio  Message
040900  -3 2076  CQ RC9A MO04
134415  -2  649  RC9A RA0SCZ OO06 (x3)
134530 -16 1800  RA0SCZ RC9A R MO04
134545  -4  649  RC9A RA0SCZ -08 (x2)
134630  -9 1844  CQ WW RC9A MO04
134645  -1  650  RC9A RA0SCZ -08 (x2)
134730  -7 1844  CQ WW RC9A MO04
134745  -9  650  RC9A RA0SCZ -08
134830 -18 1844  JG5VFK RC9A R MO04
134845  -3  650  RC9A RA0SCZ -08 (x2)

40m

UTC    dB Audio  Message
175145 -17 2155  RC9A DJ1TU JN48
175200 -20 1924  CQ RC9A MO04
175215 -21 2156  RC9A DJ1TU JN48
175230 -19 1924  CQ RC9A MO04 (x5)
175545 -10  580  RC9A G0OYQ IO93
011415 -12  877  RC9A RZ1AS KO59 (x2)
011815 -11 1826  RC9A RL3QGD KO91 (x3)
012330 -22 1826  CQ RC9A MO04

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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