IU8UVB — 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: JN70

Receiver-side FT8 activity involving IU8UVB, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-03.

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 72 FT8 messages attributed to IU8UVB as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 80 m (4%) and 40 m (3%). Most decodes (97%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 3 40m · 2 20m · 67

First attributed message: 2026-06-08
Last attributed message: 2026-10-03 22:45 UTC

Observed FT8 message patterns

Attributed sample: 72 messages
Active dates: 14 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -18 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 10.

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 IU8UVB in decoded directed-looking exchanges:

IN3IJJ · Italy XU7O · Cambodia DH5BM · Fed. Rep. of Germany GU4WRP · Guernsey RN6MA · European Russia T77NC · San Marino

Most frequent locator attributed to IU8UVB

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: JN70 · 51 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,175 km (approx.)
Last such locator decoded: 2026-10-03 22:45 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	IU8UVB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 23:23	80m	- / -20	S50XX	+2 / -	7	Partial capture
11-03 10:45	40m	- / -	OE8PIT	+3 / -	4	Partial capture
10-30 21:03	40m	- / -	F4NFM	-10 / -	3	Partial capture
10-26 20:02	40m	- / -13	GU4WRP	-4 / -	2	✓ Closing fragment
10-19 21:48	40m	- / -9	OS4K	-16 / -	3	Partial capture
09-22 19:48	40m	- / -13	DD1OO	+1 / -	2	Partial capture
09-16 20:31	40m	- / -10	4L7T	-6 / -	7	Partial capture
09-12 23:18	80m	- / -	OE3OOG	-10 / -	4	Partial capture
09-07 21:23	80m	- / -22	T77NC	-6 / -	2	✓ Closing fragment
08-29 16:53	20m	- / -10	EA8AT	-9 / -	4	Partial capture
08-24 21:43	20m	- / -5	IN3IJJ	-4 / -	3	✓ Closing fragment
08-24 21:43	20m	- / -13	BG7BMG	-8 / -	2	Partial capture
08-19 23:40	20m	-13 / -	TI5RR	- / -	5	Partial capture
08-19 23:32	20m	-14 / -	TI5RR	- / -	3	Partial capture
08-19 23:30	20m	- / -13	XU7O	-11 / -	2	✓ Closing fragment
08-19 23:07	20m	-18 / -	HI5MAH	- / -	2	Partial capture
08-15 23:01	40m	- / -18	RN6MA	-13 / -	3	✓ Closing fragment
08-10 22:19	20m	- / -	TA3NK	-12 / -	2	Partial capture
08-09 21:43	40m	- / -12	DH5BM	-12 / -	3	✓ Closing fragment
08-09 14:26	20m	- / -16	F1PBZ	-4 / -	2	Partial capture
08-08 09:51	20m	- / -10	OE5PEN	-14 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
212330  -4  720  IU8UVB T77NC -22 (x2)
231800  -6 1810  IU8UVB OE3OOG JN87 (x4)
224230 -10  506  DO4DXA IU8UVB JN70 (x2)
232300  -6 1155  IU8UVB S50XX JN65 (x7)

40m

UTC    dB Audio  Message
203445  -3  460  IU8UVB 4L7T -10
194830  +3 1003  IU8UVB DD1OO JN49 (x2)
214800 -15 1931  IU8UVB OS4K -09 (x3)
200200  -6 1183  IU8UVB GU4WRP -13 (x2)
210345  -9  856  IU8UVB F4NFM IN97 (x3)
104545  +2  721  IU8UVB OE8PIT JN66 (x4)

20m

UTC    dB Audio  Message
234045 -17  905  TI5RR IU8UVB JN70 (x5)
214300  -8 2274  IU8UVB BG7BMG -13
214330  -3 1040  IU8UVB IN3IJJ JN56
214330  -9 2275  IU8UVB BG7BMG -14
214400  -3 1040  IU8UVB IN3IJJ R-05 (x2)
165315  -8 1173  IU8UVB EA8AT -10 (x4)
160930  +0 2153  IU8UVB M8KKH JO01

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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