RU9FM — 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 Most frequent locator attributed to this token: LO88

Receiver-side FT8 activity involving RU9FM, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-11 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 73 FT8 messages attributed to RU9FM 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 (84%), followed by 20 m (16%). Several six-hour UTC windows tied for the largest share (84%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 61 20m · 12

First attributed message: 2026-06-11
Last attributed message: 2026-09-17 18:38 UTC

Observed FT8 message patterns

Attributed sample: 73 messages
Active dates: 3 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -16 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 33.

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 RU9FM in decoded directed-looking exchanges:

RI1FJL · Franz Josef Land R4CCE · European Russia 4X1UF · Israel CU3AC · Azores DF6QP · Fed. Rep. of Germany DL4BCY · Fed. Rep. of Germany DO8JB · Fed. Rep. of Germany F5HNQ · France G0OYQ · England G0UIH · England IK0MIB · Italy IV3JRY · Italy

Most frequent locator attributed to RU9FM

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: LO88 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,444 km (approx.)
Last such locator decoded: 2026-09-17 18:34 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	RU9FM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 18:42	80m	- / -	OG6N	-11 / -	2	Partial capture
09-18 18:33	80m	- / -18	RA2FU	+1 / -	3	Partial capture
09-17 18:37	80m	-12 / -17	OZ7CL	-4 / -	3	✓ Closing observed
09-17 18:34	80m	-14 / -	EX7DY	- / -	2	Partial capture
09-17 18:12	80m	- / -16	RA3ZOM	+2 / -	2	✓ Closing fragment
09-17 18:04	80m	- / -12	RW2Z	-10 / -	3	✓ Closing fragment
09-17 17:57	80m	- / -14	S51DI	+1 / -	4	✓ Closing fragment
09-17 17:54	80m	- / -7	RK6MC	-5 / -	3	✓ Closing fragment
09-05 18:49	80m	- / -	UB1API	-2 / -	2	Partial capture
08-28 21:39	80m	- / -	M1WLK	-5 / -	3	Partial capture
08-28 21:38	80m	-4 / -	5Z4AB	- / -	3	Partial capture
08-28 21:36	80m	-6 / -	PE1NPS	- / -17	2	✓ Closing fragment
08-28 21:34	80m	-8 / -	IV3JRY	+5 / -12	4	✓ Closing observed
08-28 21:32	80m	-8 / -5	F5HNQ	-4 / -13	5	✓ Full exchange observed
08-28 21:28	80m	-11 / +10	R8CKD	-10 / -2	8	✓ Full exchange observed
08-28 21:27	80m	-13 / -13	PA3FPQ	+9 / -10	4	✓ Full exchange observed
08-28 21:26	80m	-12 / -19	CU3AC	-7 / -	6	✓ Closing observed
08-28 21:26	80m	-18 / -5	R3TIT	+3 / 0	4	✓ Full exchange observed
08-28 21:18	80m	-9 / -	OK1UOZ	+16 / -12	3	Partial capture
08-28 21:18	80m	- / -	R3KOZ	-4 / -	2	Partial capture
08-28 21:14	80m	-9 / -	DL4BCY	-1 / -14	3	✓ Closing observed
08-28 21:12	80m	-7 / -10	R1CBK	-2 / -12	4	✓ Full exchange observed
08-28 21:08	80m	-6 / -4	DO8JB	-1 / -15	5	✓ Full exchange observed
08-28 21:06	80m	-10 / -11	G0OYQ	0 / -12	6	✓ Full exchange observed
08-28 21:04	80m	-8 / -10	DF6QP	0 / -14	6	✓ Full exchange observed
08-28 21:02	80m	-5 / -17	IK0MIB	+1 / -18	7	✓ Full exchange observed
08-28 21:01	80m	-8 / -13	OE6TNO	-1 / -19	5	✓ Full exchange observed
08-28 12:26	20m	-3 / -	RI1FJL	- / -4	4	✓ Closing fragment
08-28 10:54	20m	-4 / -	RI1FJL	- / -16	2	Partial capture
08-28 10:46	20m	-7 / -	RI1FJL	- / -16	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
080000 -11 2083  RU9FM EA4HTI IM69

80m

UTC    dB Audio  Message
181245  -3 1941  RU9FM RA3ZOM 73
183415 -13 1244  EX7DY RU9FM LO88 (x2)
183730  +1  334  RU9FM OZ7CL -17 (x2)
183815 -12  859  OZ7CL RU9FM 73
174815 -21  199  RU9FM 4X1UF RR73
182645  -9 2117  RU9FM R6CW -12
182945  -8 1330  RU9FM R2DDN KO85
183345  +1 2445  RU9FM RA2FU -18 (x3)
183645  -9 2116  RU9FM R6CW -17
184215 -10 2912  RU9FM OG6N KP12 (x2)

40m

UTC    dB Audio  Message
133915 -19 1744  RU9FM R4CCE 73

20m

UTC    dB Audio  Message
104645  -8  357  RI1FJL RU9FM R-16 (x8)
110230 -11  354  RU9FM R9OX R-05
110330 -14  619  RU9FM R3WDW KO81
122615  -4  345  RI1FJL RU9FM LO88 (x4)

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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