UB4RGZ — 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: LO45

Receiver-side FT8 activity involving UB4RGZ, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-14.

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 55 FT8 messages attributed to UB4RGZ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (98%), followed by 40 m (2%). Most decodes (96%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (98%); the estimated median was -21 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-21 dB

Estimated median S/N

Bands

80m · 54 40m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-10-14 15:27 UTC

Observed FT8 message patterns

Attributed sample: 55 messages
Active dates: 5 UTC dates
Estimated median S/N: -21 dB
Estimated 10th-90th percentile: -24 to -17 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 54, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.

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 UB4RGZ in decoded directed-looking exchanges:

IK4LZH · Italy RU3QR · European Russia EX7CQ · Kyrgyzstan ON4ASV · Belgium R2FDU · Kaliningrad R2HD · European Russia R3KLE · European Russia R4CCE · European Russia R4RN · European Russia R6KY · European Russia R6SBN · European Russia R7KCK · European Russia

Most frequent locator attributed to UB4RGZ

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: LO45 · 33 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,920 km (approx.)
Last such locator decoded: 2026-10-14 15:27 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	UB4RGZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 20:19	80m	- / -7	R8FH	-12 / -	2	✓ Closing fragment
10-18 20:03	80m	- / -	R7CD	+1 / -	3	Partial capture
10-18 18:35	80m	- / -16	RU3T	+13 / -	3	✓ Closing fragment
10-18 18:33	80m	- / -13	R8PG	-10 / -	2	✓ Closing fragment
10-14 15:34	80m	- / -8	RO5A	+4 / -	2	Partial capture
10-14 15:32	80m	- / -12	R6ML	-2 / -	4	✓ Closing fragment
10-14 15:30	80m	- / -7	R3KAB	+2 / -	2	✓ Closing fragment
10-14 15:26	80m	-18 / -7	R5ACQ	-2 / -	4	✓ Closing observed
10-09 21:40	40m	- / -15	EX7CQ	-6 / -	2	✓ Closing fragment
10-08 19:05	80m	- / -10	R3BDQ	-1 / -	3	✓ Closing fragment
10-08 18:23	80m	- / -	RX4SA	-14 / -	2	Partial capture
10-08 18:06	80m	- / -	RX1AB	-13 / -	3	Partial capture
09-28 15:00	40m	- / -	DL6UM	+1 / -	5	Partial capture
09-28 14:57	40m	- / -6	UA6HJT	+2 / -	3	✓ Closing fragment
09-28 14:52	40m	- / -	RW3SB	-9 / -	2	Partial capture
09-28 14:52	40m	- / -	RA5CW	-16 / -	2	Partial capture
09-26 19:04	40m	- / -	PD9SD	-13 / -	2	Partial capture
09-26 18:44	40m	- / -11	R4ZZ	-9 / -	2	Partial capture
09-26 18:44	40m	- / -	RA3PS	-4 / -	3	Partial capture
09-26 18:31	40m	- / -13	R7KCK	-10 / -	3	✓ Closing fragment
09-26 18:25	40m	- / -	R7KCK	-10 / -	2	Partial capture
09-23 17:36	40m	- / -24	UB2FEK	0 / -	5	✓ Closing fragment
09-23 17:35	40m	- / -12	YO9PH	-5 / -	2	✓ Closing fragment
09-23 17:03	40m	- / -	R6SBN	-2 / -	2	✓ Closing fragment
09-23 16:58	40m	- / -5	R3KLE	-4 / -	3	✓ Closing fragment
09-23 14:37	40m	- / -2	R4CCE	-13 / -	3	✓ Closing fragment
09-23 13:06	40m	- / -16	R6KY	-8 / -	4	✓ Closing fragment
09-19 18:34	40m	- / -	OH3MB	0 / -	2	Partial capture
09-19 18:11	40m	- / 0	RA6LTD	-2 / -	2	✓ Closing fragment
08-25 20:59	40m	- / -	S51UN	-5 / -	2	Partial capture
08-16 10:10	20m	- / -14	F4HTA	-12 / -	3	Partial capture
08-16 09:39	20m	- / -16	PD3LKN	-12 / -	3	Partial capture
08-16 09:36	20m	- / -11	RU3QR	-19 / -	4	✓ Closing fragment
08-16 09:20	20m	- / -10	IK4LZH	-2 / -	4	✓ Closing fragment
08-05 16:36	40m	- / -	RG5A	-9 / -	2	✓ Closing fragment
08-04 19:06	40m	- / -17	SP7TF	-6 / -	2	✓ Closing fragment
08-04 18:56	40m	- / -8	IK3TZB	-10 / -	2	Partial capture
08-04 18:29	40m	- / -13	ON4ASV	0 / -	4	✓ Closing fragment
08-04 18:27	40m	- / -7	RA3TVW	-19 / -	2	Partial capture
08-04 18:21	40m	- / -15	R2FDU	-11 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
153400  +4  813  UB4RGZ RO5A -08
153400  -3 1004  UB4RGZ R6ML LN17 (x2)
153500  +3  814  UB4RGZ RO5A -08
153500  -3 1004  UB4RGZ R6ML 73
183330 -12 1243  UB4RGZ R8PG -13 (x2)
183500 +14  675  UB4RGZ RU3T LO16 (x3)
200345  +2 1241  UB4RGZ R7CD KN94 (x3)
201945 -11  594  UB4RGZ R8FH -07 (x2)

40m

UTC    dB Audio  Message
145300  -9 1040  UB4RGZ RW3SB LO04
145500  +7  718  UB4RGZ UA6HJT LN14
145600 -20 1395  UB4RGZ UB8A -11
145730  +1  718  UB4RGZ UA6HJT LN14 (x3)
150000 -22 1754  UB4RGZ UA9SAV 73
150000  -1  824  UB4RGZ DL6UM JO60 (x5)
213915  -8 1527  UB4RGZ DL7ARV JO62
214030  -5 1717  UB4RGZ EX7CQ -15 (x2)

20m

UTC    dB Audio  Message
092045  +3  462  UB4RGZ IK4LZH JN54 (x3)
093600 -18 1420  UB4RGZ RU3QR -11 (x4)
093900 -12 1082  UB4RGZ PD3LKN JO22 (x3)
100145 -12  369  UB4RGZ F4HTA -14
100215 -19 1877  UB4RGZ PD0WL JO21
101015 -11  368  UB4RGZ F4HTA -14 (x3)

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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