IU6UBB — 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: JN72

Receiver-side FT8 activity involving IU6UBB, decoded by SO8OO in southeastern Poland. 45 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-11-02.

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 45 FT8 messages attributed to IU6UBB as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 20 m (40%) and 80 m (9%). Several six-hour UTC windows tied for the largest share (64%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 4 40m · 22 20m · 18 10m · 1

First attributed message: 2026-06-14
Last attributed message: 2026-11-02 08:44 UTC

Observed FT8 message patterns

Attributed sample: 45 messages
Active dates: 12 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -24 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 9.

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 IU6UBB in decoded directed-looking exchanges:

F1PBZ · France ×2 CT1BFP · Portugal R6LQU · European Russia RD3FY · European Russia DH5BM · Fed. Rep. of Germany IZ4AIF · Italy R3XBS · European Russia IK1MJK · Italy IQ4JO · 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 IU6UBB

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: JN72 · 30 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 977 km (approx.)
Last such locator decoded: 2026-11-01 18:19 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	IU6UBB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 08:43	40m	-24 / -	DH5BM	-10 / -	3	✓ Closing observed
11-01 18:14	40m	-18 / -	DC7MA	-13 / -5	2	Partial capture
10-27 18:08	80m	- / -14	IQ4JO	+1 / -	3	✓ Closing fragment
10-27 18:03	80m	- / -	IK1MJK	-6 / -	3	✓ Closing fragment
10-27 18:03	80m	- / -6	IQ4JO	+2 / -	4	Partial capture
10-04 17:15	40m	-21 / -16	UA3LRN	-10 / -	2	Partial capture
10-04 17:07	40m	- / -21	R3XBS	-12 / -	4	✓ Closing fragment
09-06 09:49	40m	- / -	SP6EFY	-2 / -	11	Partial capture
08-30 17:36	40m	+2 / -17	F1PBZ	-2 / -13	6	✓ Full exchange observed
08-30 17:34	40m	-10 / +5	IZ4AIF	0 / -14	4	✓ Full exchange observed
08-30 17:18	40m	- / -	SQ5PTZ	-2 / -	6	Partial capture
08-30 16:54	40m	-17 / -	VJ6X	- / -	4	Partial capture
08-23 17:42	20m	- / -12	R6LQU	+10 / -	3	✓ Closing fragment
08-23 17:37	20m	- / -	ON5CDG	-3 / -	2	Partial capture
08-23 17:31	20m	- / -11	CT1BFP	+4 / -	4	✓ Closing fragment
08-09 16:24	20m	- / -18	RD3FY	-22 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
170815 -11 1359  IU6UBB R3XBS R-21 (x3)
171315 -19 1360  E75BO IU6UBB -12
171445 -18 1360  CQ IU6UBB JN72
171545 -21 1360  UA3LRN IU6UBB JN72
171600 -10 2457  IU6UBB UA3LRN -16
160700 -24 1631  CQ IU6UBB JN72
160845  -7 1583  IU6UBB PD1DBL JO22
181415 -13 1937  IU6UBB DC7MA JN39
181500 -18 1935  DC7MA IU6UBB -05
181900 -24 1909  CQ IU6UBB JN72
084345 -11 1745  IU6UBB DH5BM JO41
084430 -24 1744  DH5BM IU6UBB RR73
084445  -8 1745  IU6UBB DH5BM 73

80m

UTC    dB Audio  Message
170015 -24 1568  CQ IU6UBB JN72 (x3)
171915 -12 1801  F4MVU IU6UBB -23
180300  +0 2114  IU6UBB IQ4JO JN63
180300  -6 1652  IU6UBB IK1MJK JN35
180330  +2 2114  IU6UBB IQ4JO R-06
180330  -7 1652  IU6UBB IK1MJK JN35
180400  +0 2114  IU6UBB IQ4JO R-06 (x2)
180530  -6 1648  IU6UBB IK1MJK 73
180800  +1 2114  IU6UBB IQ4JO JN63 (x3)

20m

UTC    dB Audio  Message
162730 -23 1663  IU6UBB RD3FY 73
163845  -6 1844  IU6UBB UA3QNA -11
164200 -19 1464  CQ IU6UBB JN72
164345 -11  788  IU6UBB IW6MXV R-01 (x2)
173100  +6 1618  IU6UBB CT1BFP IM59 (x4)
173700  -2 1284  IU6UBB ON5CDG JO10 (x2)
174200 +12 1730  IU6UBB R6LQU KN97 (x3)
170100 -18 1685  IU6UBB DB2LP JO43

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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