RN4SN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO36

Receiver-side FT8 activity involving RN4SN, decoded by SO8OO in southeastern Poland. 997 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-15.

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 997 FT8 messages attributed to RN4SN as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (66%), followed by 40 m (21%) and 160 m (12%). Most decodes (75%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

997

Messages attributed

UTC dates decoded

176

Active 15-min windows

-7 dB

Estimated median S/N

Bands

160m · 120 80m · 658 40m · 214 20m · 5

First attributed message: 2026-06-06
Last attributed message: 2026-10-15 01:36 UTC

Observed FT8 message patterns

Attributed sample: 997 messages
Active dates: 40 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to +1.4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 102, moderate (-15 to -9 dB) 312, strong (≥ -8 dB) 583.

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 RN4SN in decoded directed-looking exchanges:

OH5KNL · Finland ×2 RQ7O · European Russia ×2 OD5XX · Lebanon ×2 DO9BAU · Fed. Rep. of Germany ×2 OH6FSO · Finland ×2 RA3LCI · European Russia ×2 SM7TZK · Sweden ×2 TF3VG · Iceland ×2 EU1KY · Belarus EW2ZC · Belarus HA5AO · Hungary IZ7NLJ · Italy

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 RN4SN

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: LO36 · 819 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,817 km (approx.)
Last such locator decoded: 2026-10-15 01:36 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	RN4SN S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-15 01:36	160m	-15 / -	CT2GQA	- / -	2	Partial capture
10-15 01:32	160m	-13 / -	EA8AR	- / -	5	Partial capture
10-14 17:42	80m	-22 / -	LB3BJ	- / -	2	Partial capture
10-14 03:38	40m	-10 / -	LU6WAV	- / -	3	Partial capture
10-14 03:35	40m	-8 / -	YV6BXN	- / -	2	Partial capture
10-14 03:31	40m	-7 / -	DL9KM	- / -16	2	✓ Closing fragment
10-14 03:30	40m	-6 / -	RM5F	- / -14	2	✓ Closing fragment
10-14 03:27	40m	0 / -7	PQ5TA	-8 / -11	9	✓ Full exchange observed
10-14 03:15	40m	+1 / -	WO2T	- / -	2	Partial capture
10-14 03:14	40m	+2 / -	WF2A	- / -	4	Partial capture
10-14 03:12	40m	+6 / -	YV6BXN	- / -	3	Partial capture
10-14 03:11	40m	-4 / -	PR7EG	- / -	2	Partial capture
10-14 03:05	40m	0 / -	PQ5TA	- / -	2	Partial capture
10-14 02:57	40m	+5 / -	PQ5TA	- / -	11	Partial capture
10-14 02:48	40m	+4 / -	YV6BXN	- / -	5	Partial capture
10-14 01:51	80m	+1 / -	ON8LX	- / -	3	Partial capture
10-14 01:50	80m	+3 / -	ON4MAP	- / -	2	Partial capture
10-14 01:45	160m	-18 / -	SV7TRK	- / -	3	Partial capture
10-14 01:36	80m	+2 / -1	OH6FSO	-10 / -14	5	✓ Full exchange observed
10-14 01:32	80m	-4 / -	EI3CTB	- / -	4	Partial capture
10-14 01:18	80m	-8 / -	GD5MUP	- / -	2	Partial capture
10-13 03:00	80m	-8 / -	G3TKT	- / -	2	Partial capture
10-13 02:55	80m	-9 / -15	SM7TZK	+9 / -10	6	✓ Full exchange observed
10-13 02:15	80m	-16 / -8	SP2ADY	-7 / -9	5	Partial capture
10-13 02:13	80m	-2 / -15	DF4WQ	-2 / -11	5	✓ Full exchange observed
10-13 02:12	80m	-8 / -15	5B4AMX	+6 / -9	4	✓ Full exchange observed
10-12 13:32	40m	-8 / -	YJ1JXZ	- / -	3	Partial capture
10-12 03:27	40m	-1 / -	YV6BXN	- / -	3	Partial capture
10-12 03:05	80m	-6 / -	9H6C	- / -	4	Partial capture
10-12 02:43	80m	-10 / -	9H6C	- / -	14	Partial capture
10-12 02:42	80m	-4 / 0	RD4CAF	-8 / -6	4	✓ Full exchange observed
10-12 02:40	80m	-8 / -	T77RN	- / -10	3	✓ Closing fragment
10-11 02:11	80m	-3 / -	VE3DZ	- / -	2	Partial capture
10-11 01:49	160m	-20 / -	SV4FFK	- / -	2	Partial capture
10-11 01:47	160m	-14 / -10	R4FDD	-8 / -	4	✓ Full exchange observed
10-11 01:43	160m	-13 / -16	EW2ZC	+8 / -5	8	✓ Full exchange observed
10-11 01:41	160m	-15 / -	SV4FFK	- / -	2	Partial capture
10-10 04:07	40m	- / -5	R7YZ	-19 / -	3	✓ Closing fragment
10-10 04:03	40m	-15 / -	YY5EHT	- / -	2	Partial capture
10-10 03:32	40m	-3 / -	CT3MD	- / -	3	Partial capture
10-10 03:28	40m	-2 / -	UA3GDJ	- / -5	3	✓ Closing fragment
10-10 03:27	40m	-4 / -	TJ1GD	- / -	2	Partial capture
10-10 03:26	40m	-1 / -	RT3K/P	- / -11	2	Partial capture
10-10 02:59	80m	-7 / -	NP4BM	- / -	2	Partial capture
10-09 03:02	40m	- / +1	R2EC	-10 / -	2	✓ Closing fragment
10-09 02:57	80m	0 / -	VA2WA	- / -	2	Partial capture
10-09 02:19	80m	-1 / -19	EC3A	+3 / -4	4	✓ Full exchange observed
10-09 02:18	80m	-2 / -13	DL5DQZ	+9 / -	9	✓ Full exchange observed
10-09 02:17	80m	0 / +1	G1SUM	-7 / +1	6	✓ Full exchange observed
10-09 02:13	80m	+2 / -	EC3A	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
014730  -9 1155  RN4SN R4FDD RR73
014745 -14 2405  R4FDD RN4SN 73
014945 -22 2405  SV4FFK RN4SN LO36 (x2)
014545 -20 2304  SV7TRK RN4SN LO36 (x3)
013215 -12 2107  EA8AR RN4SN LO36
013245 -12 2107  CT2GQA RN4SN LO36
013400 -15 2107  EA8AR RN4SN LO36 (x4)
013615 -17 2107  CT2GQA RN4SN LO36 (x2)

80m

UTC    dB Audio  Message
013230  -7 2724  EI3CTB RN4SN LO36 (x3)
013615  +2 2724  OH6FSO RN4SN LO36
013630  -5 2879  RN4SN OH6FSO -01
013645  +1 2724  OH6FSO RN4SN R-14
013700 -16 2879  RN4SN OH6FSO RR73
013715  +2 2724  OH6FSO RN4SN R-14
015000  +2 2661  ON4MAP RN4SN LO36 (x2)
015130  -7 2660  ON8LX RN4SN LO36 (x3)
174200 -22 2461  LB3BJ RN4SN LO36 (x2)

40m

UTC    dB Audio  Message
032845  +3 2638  PQ5TA RN4SN LO36 (x2)
032930  -6 2419  RN4SN PQ5TA -07
032945  -5 2638  PQ5TA RN4SN R-11
033000  -9 2419  RN4SN PQ5TA RR73
033015  -5 2638  PQ5TA RN4SN 73
033045  -7 2638  RM5F RN4SN -14 (x2)
033145  -7 2638  DL9KM RN4SN -16 (x2)
033530  -8 2638  YV6BXN RN4SN LO36 (x2)
033800  -9 2638  LU6WAV RN4SN LO36 (x3)

20m

UTC    dB Audio  Message
031630  -2 1350  RN4SN RW9WJ LO84 (x7)
153545  -5 2777  RI0FA RN4SN LO36 (x5)

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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