UA3RF — 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: LO02

Receiver-side FT8 activity involving UA3RF, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 160m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-01 and 2026-09-19.

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 64 FT8 messages attributed to UA3RF as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 20 m (42%) and 160 m (8%). Most decodes (72%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 5 40m · 32 20m · 27

First attributed message: 2026-08-01
Last attributed message: 2026-09-19 13:21 UTC

Observed FT8 message patterns

Attributed sample: 64 messages
Active dates: 6 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -14 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 36.

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 UA3RF in decoded directed-looking exchanges:

RI1FJZ · Franz Josef Land R50RKZ · European Russia R6DOB/P · European Russia R9BT · Asiatic Russia RI1FJL · Franz Josef Land R3RRC/P · European Russia R3WDW/P · European Russia RA4HEX · European Russia RN3TT · European Russia RZ6L · European Russia SV1DKR · Greece

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 UA3RF

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: LO02 · 33 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,363 km (approx.)
Last such locator decoded: 2026-09-19 13:17 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	UA3RF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 13:20	40m	-12 / 0	RN3TT	-20 / -	3	✓ Closing observed
09-19 13:16	40m	-15 / -	R3RRC/P	- / +2	5	✓ Closing fragment
09-16 19:23	160m	-3 / -	RI1FJZ	- / -14	5	✓ Closing fragment
09-16 16:15	40m	-4 / -12	RA4HEX	-12 / -15	3	✓ Full exchange observed
09-16 16:13	40m	-2 / -	SV1DKR	-8 / -8	4	✓ Closing observed
09-16 16:11	40m	- / -	R3WDW	+4 / -	4	Partial capture
09-16 16:10	40m	0 / -1	RZ6L	+4 / +1	5	✓ Full exchange observed
09-16 16:09	40m	+1 / -	G0ODR/P	- / -8	4	Partial capture
09-16 16:08	40m	0 / -	II6IALU	- / -8	2	Partial capture
09-16 16:02	40m	-8 / -	UA9JTJ/9	- / -	2	Partial capture
09-16 13:22	40m	-15 / +4	R3WDW/P	-9 / +4	5	✓ Full exchange observed
09-07 04:31	40m	-8 / -	SN40KZE	- / +4	2	Partial capture
09-07 04:29	40m	-12 / -	SN100PKP	- / -	3	Partial capture
08-31 09:39	20m	-6 / -	R9BT	- / -6	2	✓ Closing fragment
08-31 09:35	20m	-2 / -	RI1FJL	- / -12	5	✓ Closing fragment
08-02 11:04	20m	-9 / -	R50RKZ	- / -7	17	✓ Closing fragment
08-01 12:43	20m	-14 / -	R6DOB/P	-4 / -7	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
161415  -7  447  CQ UA3RF LO02 (x2)
161515  -5  446  RA4HEX UA3RF -15
161530 -12  446  UA3RF RA4HEX R-12
161545  -3  446  RA4HEX UA3RF RR73
161830  +6  444  VJ6X UA3RF LO02
131645 -17 2267  R3RRC/P UA3RF LO02 (x5)
132000 +11 1517  UA3RF YO8BBU KN37
132015 -21 1362  UA3RF RN3TT +00 (x2)
132100 -12 2265  RN3TT UA3RF 73

160m

UTC    dB Audio  Message
192345  -5 1226  RI1FJZ UA3RF LO02 (x5)
192600 -16 1106  UA3RF RM5F KO85

20m

UTC    dB Audio  Message
111215  -6 2522  R50RKZ UA3RF LO02 (x6)
111600  -2 2321  UA3RF RR73; RU9AD <...> +00
111615  +0 2268  R50RKZ UA3RF 73
093545  -3  789  RI1FJL UA3RF LO02 (x5)
093915  -8  774  R9BT UA3RF R-06 (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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