IU0RVJ — 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: Italy Most frequent locator attributed to this token: JN61

Receiver-side FT8 activity involving IU0RVJ, decoded by SO8OO in southeastern Poland. 88 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-31 and 2026-11-04.

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 88 FT8 messages attributed to IU0RVJ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (81%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (61%); the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 88

First attributed message: 2026-10-31
Last attributed message: 2026-11-04 23:00 UTC

Observed FT8 message patterns

Attributed sample: 88 messages
Active dates: 3 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -16 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 54, strong (≥ -8 dB) 23.

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 IU0RVJ in decoded directed-looking exchanges:

4X1UF · Israel ×2 HB9ELE · Switzerland ×2 DL7ACA · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany EA8UP · Canary Islands F1PBZ · France F4HBV · France F5OYA/P · France G0BLB · England G8KHF · England GM7JQK · Scotland HA7XL · Hungary

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 IU0RVJ

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: JN61 · 51 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,158 km (approx.)
Last such locator decoded: 2026-11-04 23:00 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	IU0RVJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 22:59	40m	-13 / -10	W6NWS	-11 / -2	4	✓ Full exchange observed
11-04 22:51	40m	-11 / +4	EA8UP	-4 / +8	9	✓ Full exchange observed
11-04 21:31	40m	-18 / -12	4X1UF	-3 / -	7	✓ Closing observed
11-04 21:29	40m	-16 / -	VE3QK	- / -	2	Partial capture
11-04 18:06	40m	- / -	PE1NPS	-12 / -	2	Partial capture
11-04 18:05	40m	- / -21	F5PBG	-10 / -	4	Partial capture
11-04 07:52	40m	-18 / -16	DL7ACA	-3 / -3	4	✓ Full exchange observed
11-04 07:51	40m	- / 0	DK7ZT	-16 / -	4	Partial capture
11-04 07:49	40m	- / -25	ON4KEB	-11 / -	4	✓ Closing fragment
11-04 06:35	40m	-13 / +2	IK4JPP	-3 / +2	3	Partial capture
11-04 06:34	40m	- / -	PD7BDN	-3 / -	2	Partial capture
11-04 06:33	40m	-12 / -	F5OYA/P	- / -12	2	✓ Closing fragment
11-04 06:31	40m	-12 / -1	F1PBZ	-7 / -7	5	✓ Full exchange observed
11-04 06:31	40m	-8 / -	G3TKT	- / -16	2	Partial capture
11-04 06:30	40m	- / -	IU2THY	+3 / -	3	Partial capture
11-04 06:27	40m	-6 / -1	9A4ZM	-6 / -9	3	Partial capture
11-04 06:27	40m	- / -	DK3HV	-12 / -	3	Partial capture
11-04 06:25	40m	- / -	UW8SM	0 / -	9	Partial capture
11-04 06:25	40m	- / -10	G0BLB	+2 / -	2	✓ Closing fragment
11-04 06:22	40m	-7 / -9	DL9KM	-12 / -	7	✓ Full exchange observed
11-03 22:33	40m	-12 / -	WA4CAS	- / -20	4	Partial capture
11-03 22:30	40m	-11 / -13	HA7XL	-16 / -10	4	✓ Full exchange observed
11-03 22:28	40m	- / -	DL3MIB	-16 / -	2	Partial capture
11-03 22:22	40m	-14 / -8	G8KHF	0 / -	4	✓ Closing observed
11-01 23:43	80m	- / -	9A4ZM	+6 / -	2	Partial capture
11-01 23:39	80m	- / -	YO6LM	+9 / -	2	Partial capture
11-01 23:38	80m	- / -19	5B4AMX	-6 / -	2	✓ Closing fragment
10-31 21:54	40m	-12 / -	GM7JQK	- / -	4	✓ Closing fragment
10-31 21:48	40m	-13 / -	VO1AAB	- / -	7	Partial capture
10-31 21:27	40m	-17 / -	VO1AAB	- / -23	3	Partial capture
10-31 20:59	40m	- / -8	4X1UF	-8 / -	2	✓ Closing fragment
10-31 20:53	40m	- / -14	A60FD/5	-12 / -	2	Partial capture
10-31 18:32	40m	- / -	US2YW	-9 / -	2	Partial capture
10-31 18:29	40m	- / -	DL7ACA	-16 / -	2	Partial capture
10-31 18:27	40m	-9 / -	HB9ELE	-7 / +2	5	✓ Closing observed
10-31 18:22	40m	-5 / -	UA9JTJ/4	- / -	3	Partial capture
10-31 18:00	40m	-5 / -5	F4HBV	0 / -12	4	✓ Full exchange observed
10-31 17:58	40m	- / -	DL8YBL	-14 / -	2	Partial capture
10-31 17:55	40m	- / -	OE9GWV	-11 / -	3	Partial capture
10-31 17:53	40m	- / -	IN3JRZ	+4 / -	2	Partial capture
10-31 17:52	40m	- / -	R3LDK	-18 / -	6	Partial capture
10-31 17:52	40m	- / -21	RU3QR	-6 / -	2	Partial capture
10-31 17:47	40m	- / -	UR9QQ	-6 / -	2	Partial capture
10-31 17:47	40m	- / -1	DK7ZT	-6 / -	4	Partial capture
10-31 17:47	40m	- / -	DL6UM	-11 / -	2	Partial capture
10-31 17:45	40m	- / -	UB3ZKO	-6 / -	2	Partial capture
10-31 17:45	40m	- / -	DL9YNG	-6 / -	2	Partial capture
10-31 17:41	40m	- / -	UR9QQ	-12 / -	2	Partial capture
10-31 17:40	40m	-6 / -	UT/WE9G	- / -8	2	Partial capture
10-31 17:38	40m	- / -	YO6GLT	-10 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
225100 -15  632  EA8UP IU0RVJ JN61 (x2)
225215  -2  519  IU0RVJ EA8UP +04 (x2)
225300  -7  633  EA8UP IU0RVJ 73
225345  -4  519  IU0RVJ EA8UP -06
225400  -8  633  EA8UP IU0RVJ R+08
225415  -6  519  IU0RVJ EA8UP RR73
225430 -11  633  EA8UP IU0RVJ 73
225730 -13  634  G0RVY IU0RVJ -18
225945 -11  631  IU0RVJ W6NWS -10
230000 -11  633  CQ IU0RVJ JN61
230015 -10  631  IU0RVJ W6NWS -10
230030 -13  633  W6NWS IU0RVJ R-02
230045 -11  631  IU0RVJ W6NWS RR73

80m

UTC    dB Audio  Message
233800  -9 1357  IU0RVJ 5B4AMX -19 (x2)
233900 +11 2660  IU0RVJ YO6LM KN25 (x2)
234315  +9  988  IU0RVJ 9A4ZM JN86 (x2)

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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