R9FF — 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 R9FF, decoded by SO8OO in southeastern Poland. 1,452 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 91 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.

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 1,452 FT8 messages attributed to R9FF as the transmitting token by decoded message structure across 91 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (54%), followed by 80 m (25%) and 40 m (20%). Most decodes (53%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

1,452

Messages attributed

UTC dates decoded

400

Active 15-min windows

-13 dB

Estimated median S/N

Bands

160m · 14 80m · 368 40m · 290 20m · 780

First attributed message: 2026-06-06
Last attributed message: 2026-10-23 18:01 UTC

Observed FT8 message patterns

Attributed sample: 1,452 messages
Active dates: 91 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 501, moderate (-15 to -9 dB) 520, strong (≥ -8 dB) 431.

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 R9FF in decoded directed-looking exchanges:

R4FDD · European Russia ×4 R50RKZ · European Russia ×3 R2EA/P · European Russia ×3 RA3PGR · European Russia ×3 R5BS · European Russia ×2 RA4FHO · European Russia ×2 RL3FA · European Russia ×2 RT2P · European Russia ×2 RW3LL · European Russia ×2 EA8CVR · Canary Islands ×2 M0MLS · England ×2 M7EOI · England ×2

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 R9FF

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 · 983 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,444 km (approx.)
Last such locator decoded: 2026-10-23 18:01 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	R9FF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 18:45	80m	- / -20	LA2GCA	-14 / -	2	✓ Closing fragment
10-23 18:24	80m	- / -17	SP9PLK	+8 / -	4	✓ Closing fragment
10-23 16:40	40m	- / +1	R5PM	-8 / -	2	✓ Closing fragment
10-23 16:25	40m	- / -17	RY6LAL	-9 / -	2	Partial capture
10-23 16:09	40m	-9 / -4	RA3RQF	-1 / -	6	✓ Closing observed
10-23 16:05	40m	-15 / -	RA3RQF	- / -	2	Partial capture
10-23 15:47	40m	-16 / -	R3BKM	- / -	2	✓ Closing fragment
10-23 14:22	40m	-14 / -10	R1WCK	-16 / -	3	✓ Closing observed
10-23 04:03	40m	- / -16	P4/WE9V	-3 / -	2	Partial capture
10-22 18:45	80m	-17 / -	RJ3ZV	- / -	2	Partial capture
10-22 18:16	80m	- / -	DO8JB	-10 / -	6	Partial capture
10-22 16:26	80m	- / -20	R6AAG	-7 / -	2	✓ Closing fragment
10-22 15:51	40m	- / -	RA6OD	-6 / -	5	Partial capture
10-22 15:48	40m	-22 / -	R2RAB	- / -23	2	Partial capture
10-22 14:38	40m	- / -7	R1QF/P	-12 / -	2	✓ Closing fragment
10-21 18:59	80m	-16 / -16	R3OR	+6 / -	4	✓ Closing observed
10-21 18:56	80m	-14 / +3	R4DB	-8 / -9	4	✓ Full exchange observed
10-21 18:16	80m	-10 / -	IS0IGM	- / -	3	Partial capture
10-21 17:20	80m	-13 / -	9A6NCC	+2 / -18	5	Partial capture
10-21 17:19	80m	- / -	IU2THY	+4 / -	3	Partial capture
10-21 17:16	80m	- / -17	YU65AEC	+4 / -	2	Partial capture
10-21 17:15	80m	-16 / -	F5OYA/P	- / -22	4	Partial capture
10-21 17:12	80m	- / -15	R7KJM	-16 / -	2	✓ Closing fragment
10-21 16:54	80m	- / -19	R3BHK	-6 / -	2	✓ Closing fragment
10-21 16:42	80m	-21 / -12	RD9T	-8 / -2	3	✓ Full exchange observed
10-21 16:39	80m	-20 / -4	RA3FH	-10 / -20	2	Partial capture
10-21 16:29	80m	- / -12	RO3ZW	-1 / -	3	Partial capture
10-21 14:44	40m	- / -12	R7RC	-6 / -	2	✓ Closing fragment
10-20 19:27	160m	- / -24	R5BM	-12 / -	2	Partial capture
10-20 15:37	40m	-20 / -	R2DAR	-16 / -10	6	✓ Closing observed
10-20 05:53	40m	- / -12	SP4MPH	+6 / -	2	Partial capture
10-19 05:51	40m	- / -9	SP4MPH	-7 / -	2	Partial capture
10-18 18:38	80m	- / -18	RA6OQ	-7 / -	2	✓ Closing fragment
10-17 19:29	160m	- / -	OM2WW	+8 / -	3	Partial capture
10-17 05:22	40m	- / -13	RA5O	+2 / -	2	Partial capture
10-17 05:14	40m	- / -14	RA5O	+7 / -	2	Partial capture
10-16 18:44	160m	- / -25	R4II	-16 / -	2	Partial capture
10-16 17:37	160m	- / -5	RL3FA	-8 / -	2	✓ Closing fragment
10-16 05:13	40m	- / -7	IK2ZJR	+3 / -	19	Partial capture
10-16 04:18	40m	- / -26	SV1ENG	+3 / -	3	✓ Closing fragment
10-15 19:20	160m	- / -19	RU3ACA	-10 / -	2	Partial capture
10-14 19:35	80m	-21 / -16	R7ZY	-22 / -	2	✓ Closing observed
10-14 19:06	80m	- / -10	R3DPI	-2 / -	2	✓ Closing fragment
10-14 17:34	80m	- / -17	RT3G	-10 / -	2	✓ Closing fragment
10-13 16:33	40m	-16 / -18	GW4HZA	-5 / -16	4	✓ Full exchange observed
10-13 16:26	40m	- / -5	UA3VBD	-9 / -	8	Partial capture
10-13 16:26	40m	-14 / -18	MW7GQB	-7 / -	2	Partial capture
10-13 15:35	40m	-12 / -	RZ3DAB	- / -17	2	✓ Closing fragment
10-12 17:46	80m	- / -12	R9FE	0 / -	3	✓ Closing fragment
10-12 17:40	80m	- / -12	RA4CFX	-15 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
181745 -10  757  R9FF DO8JB JO32 (x3)
184530 -15  756  RJ3ZV R9FF LO88 (x2)
191345 -11  756  GM0DEQ R9FF LO88
175030 -16  809  RG4C R9FF LO88
175515  -3 1898  R9FF RG4C RR73
180115 -24  809  R2DVN R9FF LO88
182445  +6  897  R9FF SP9PLK JO90 (x4)
184500  -8 1498  R9FF LA2GCA -20 (x2)

40m

UTC    dB Audio  Message
154915 -16  843  R3BKM R9FF 73
160515 -15  844  RA3RQF R9FF LO88 (x3)
160930  -1  553  R9FF RA3RQF -04 (x4)
161115 -11  844  RA3RQF R9FF 73
162500 -10 1638  R9FF RY6LAL -17 (x2)
162930 -13  844  R9FF RZ4M -18
164045  -6 1237  R9FF R5PM +01 (x2)
165030  -7 2625  R9FF GM8IEM RR73

160m

UTC    dB Audio  Message
173100 -15  796  R9FF R1NI -18 (x2)
173745  -6 2127  R9FF RL3FA -05 (x2)
184415 -14  404  R9FF R4II -25 (x2)
191600 -16  601  R9FF RA1N -19
192900  +8 1321  R9FF OM2WW JN88 (x3)
162230 -18 1551  R9FF RN4LP -05
173515  +6 1321  R9FF OM2WW JN88
192730 -11 1182  R9FF R5BM KO85 (x2)
195300 -16 1447  R9FF R3YBG -15

20m

UTC    dB Audio  Message
074815  -4 1529  R9FF EA5HM IM99 (x5)
075115  +0  554  RD0L R9FF LO88 (x3)
081015  -9  554  RM6OS R9FF R-10 (x2)
081200  +1 2145  R9FF RR73; RA9ACA <...> +12
081845  -9  554  CQ R9FF LO88
081930 -12 1961  R9FF IV3KON JN65
081945  -8  553  CQ R9FF LO88
082000 -13 1960  R9FF IV3KON JN65

10m

UTC    dB Audio  Message
092545 -13  946  R9FF M5RJR -20 (x3)
110615 +12  489  R9FF IK4LZH JN54 (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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