UA3IVF — 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: KO76

Receiver-side FT8 activity involving UA3IVF, decoded by SO8OO in southeastern Poland. 75 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 75 FT8 messages attributed to UA3IVF as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (45%), followed by 40 m (39%) and 20 m (16%). Most decodes (55%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

75
Messages attributed
11
UTC dates decoded
21
Active 15-min windows
-8 dB
Estimated median S/N

Bands

40m · 29 20m · 12 10m · 34
First attributed message: 2026-06-06
Last attributed message: 2026-11-04 16:53 UTC

Observed FT8 message patterns

Attributed sample
75 messages
Active dates
11 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-16 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 41.

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:

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 · 23 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,139 km (approx.)
Last such locator decoded
2026-09-22 19:44 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 UTCBandUA3IVF S/NCounterpartCounterpart S/NMsgsCapture
11-05 20:24 40m - / - SP6AXW -9 / - 4 Partial capture
11-04 16:53 40m -16 / -3 UN9L -14 / -3 3 ✓ Full exchange observed
11-04 16:51 40m - / +5 R9LY -8 / - 2 ✓ Closing fragment
11-04 12:57 10m - / -19 6W/IK2HKT -12 / - 2 Partial capture
11-03 19:13 40m - / -10 R4GM 0 / - 2 ✓ Closing fragment
10-28 07:44 10m - / -11 9K2YM -13 / - 2 ✓ Closing fragment
10-28 07:34 40m - / - YL3ASK -11 / - 2 ✓ Closing fragment
10-11 09:33 10m - / -20 4X5MZ +8 / - 2 ✓ Closing fragment
09-22 19:41 40m -12 / - RI1FJZ - / - 5 Partial capture
09-22 19:37 40m - / - DL7ARV +9 / - 9 Partial capture
09-22 19:36 40m 0 / - RM5F -4 / -17 3 ✓ Closing observed
09-22 19:35 40m 0 / -7 9A5CW +6 / -11 5 ✓ Full exchange observed
09-22 19:34 40m -6 / -4 MI7XHT -5 / -11 5 ✓ Full exchange observed
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

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
073415 -11 2624  UA3IVF YL3ASK +13 (x2)
080215  -8 1850  UA3IVF EW8GT RR73
191315  +0 2359  UA3IVF R4GM -10 (x2)
165100  -6 2356  UA3IVF R9LY +05 (x2)
165315 -15 2467  UN9L UA3IVF -03
165330 -14 2468  UA3IVF UN9L R-03
165345 -16 2467  UN9L UA3IVF RR73
200215 -10 2549  UA3IVF E70A RR73
202415 -11  977  UA3IVF SP6AXW JO80 (x4)
10m 
UTC    dB Audio  Message
093300  +7  650  UA3IVF 4X5MZ -20 (x2)
074400 -13  973  UA3IVF 9K2YM -11 (x2)
093730 -15 2301  UA3IVF TN8GD -10
125700 -14  826  UA3IVF 6W/IK2HKT -19 (x2)
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

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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