UA3IVF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO76

Receiver-side FT8 activity involving UA3IVF, decoded by SO8OO in southeastern Poland. 61 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-06 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 61 FT8 messages attributed to UA3IVF as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (56%), followed by 40 m (25%) and 20 m (20%). Most decodes (56%) fell within the six-hour window 07:00-13:00 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

40m · 15 20m · 12 10m · 34

First attributed message: 2026-06-06
Last attributed message: 2026-09-19 20:14 UTC

Observed FT8 message patterns

Attributed sample: 61 messages
Active dates: 9 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 35.

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 UA3IVF in decoded directed-looking exchanges:

RL3K · European Russia BG5IOG · China RA0SCZ · Asiatic Russia TN8GD · Republic of the Congo EA8UP · Canary Islands JJ2IJU · Japan R2BIN · European Russia R3QX · European Russia R6DFI · European Russia RA3GZ · European Russia RY4D · European Russia SV9QWC · Crete

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 UA3IVF

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: KO76 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,139 km (approx.)
Last such locator decoded: 2026-09-19 20:14 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	UA3IVF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 20:14	40m	-16 / -16	EA8UP	0 / -	4	✓ Closing observed
09-03 20:03	40m	- / -13	RA3GZ	+8 / -	2	✓ Closing fragment
09-03 19:56	40m	-7 / -	JJ2IJU	- / -16	2	✓ Closing fragment
09-03 19:54	40m	-10 / +2	R3QX	+1 / +1	4	✓ Full exchange observed
09-03 19:26	40m	-6 / -14	R2BIN	+8 / -	4	✓ Closing observed
09-03 19:18	40m	-8 / -8	R6DFI	+6 / -1	4	✓ Full exchange observed
09-03 18:51	40m	- / -4	RY4D	-6 / -	2	✓ Closing fragment
09-03 18:47	40m	-2 / -8	UI6O	+5 / -13	3	✓ Full exchange observed
09-03 18:45	40m	-9 / -	SV9QWC	- / -15	3	✓ Closing fragment
08-09 17:12	20m	-10 / -	TN8GD	- / -	2	✓ Closing fragment
07-19 11:50	10m	- / -	R7DX	-11 / -	3	Partial capture
07-18 19:32	10m	- / -5	RL3K	-16 / -	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
192630  +9 2595  UA3IVF R2BIN -14 (x2)
192715  -7 2595  R2BIN UA3IVF 73
195400 -10  822  R3QX UA3IVF KO76
195415  +2  821  UA3IVF R3QX +02
195430 -11  822  R3QX UA3IVF R+01
195445  +0  821  UA3IVF R3QX RR73
195600  -5 2384  JJ2IJU UA3IVF R-16 (x2)
200330  +7 1244  UA3IVF RA3GZ -13 (x2)
201415 -16 2384  EA8UP UA3IVF KO76
201430  -1 2384  UA3IVF EA8UP -16 (x3)

20m

UTC    dB Audio  Message
171245  -9  604  TN8GD UA3IVF KO76 (x2)
154430 -24 1677  BG5IOG UA3IVF 73
154545 -13  854  UA3IVF RA0SCZ 73
162345 -18  996  C91RU UA3IVF R-17

10m

UTC    dB Audio  Message
125715  -7 2790  UA3IVF R6TA LN13
193230 -16 1350  UA3IVF RL3K KO91 (x3)
115045 -11 1816  UA3IVF R7DX KN84 (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.

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