UR7VU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN68

Receiver-side FT8 activity involving UR7VU, decoded by SO8OO in southeastern Poland. 458 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-28.

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 458 FT8 messages attributed to UR7VU as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (77%), followed by 40 m (23%). The busiest six-hour window was 05:00-11:00 UTC, containing 49% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13.1 dB.

Overview

458
Messages attributed
37
UTC dates decoded
98
Active 15-min windows
-13.1 dB
Estimated median S/N

Bands

40m · 104 20m · 354
First attributed message: 2026-06-10
Last attributed message: 2026-08-28 08:00 UTC

Observed FT8 message patterns

Attributed sample
458 messages
Active dates
37 UTC dates
Estimated median S/N
-13.1 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 164, moderate (-15 to -9 dB) 186, strong (≥ -8 dB) 108.

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 UR7VU 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 UR7VU

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
KN68 · 281 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
829 km (approx.)
Last such locator decoded
2026-08-28 07:59 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 UTCBandUR7VU S/NCounterpartCounterpart S/NMsgsCapture
08-28 08:03 20m - / - IK4LZH +20 / - 4 Partial capture
08-28 08:00 20m -10 / -5 F5SJC -6 / -6 4 ✓ Full exchange observed
08-26 05:55 20m - / - HB9EFK -15 / - 2 ✓ Closing fragment
08-26 05:50 20m - / - G7IGN +11 / - 3 Partial capture
08-21 06:48 20m -6 / - <...> - / - 3 Partial capture
08-21 06:47 20m -12 / - OK2LC - / -9 2 ✓ Closing fragment
08-21 06:44 20m -3 / - F5RAV - / -22 3 ✓ Closing fragment
08-21 06:41 20m -4 / -2 LZ4VR -8 / -14 5 ✓ Full exchange observed
08-20 10:16 20m - / - DL1R +7 / - 9 Partial capture
08-10 17:23 40m -10 / - SM6FZO - / - 2 Partial capture
08-10 17:20 40m -15 / - SQ9M -19 / -5 4 ✓ Closing observed
08-10 17:17 40m -9 / - <...> - / - 3 Partial capture
08-10 17:14 40m -11 / - IZ5HLP - / -15 2 Partial capture
08-10 17:12 40m -10 / - HA7JLR -21 / -18 4 ✓ Closing observed
08-09 16:17 20m -16 / - 5P5Z - / - 2 Partial capture
08-06 05:03 20m - / -5 5B4AMX -2 / - 3 Partial capture
08-05 06:33 20m -16 / - IS0AFM - / - 2 Partial capture
08-05 06:27 20m -14 / -11 S50DX -17 / -19 3 Partial capture
08-05 06:19 20m -13 / - OK3MET - / -21 2 Partial capture
08-05 06:14 20m -17 / - OK3MET - / - 2 Partial capture
08-04 16:16 20m - / +4 F4VVJ -20 / - 2 ✓ Closing fragment
08-02 06:22 20m -15 / - IS0KNG - / - 3 Partial capture
08-02 06:17 20m -15 / - HZ1TT - / -10 3 ✓ Closing fragment
07-30 06:03 20m -14 / -8 EK1KE -13 / -16 5 ✓ Full exchange observed
07-30 06:01 20m -17 / - KH6M - / - 3 Partial capture
07-28 06:11 20m -18 / - IK4RVY - / - 4 Partial capture
07-28 05:51 20m - / - RX3ASQ -12 / - 3 Partial capture
07-25 07:44 20m -18 / - EX9A - / - 2 ✓ Closing fragment
07-22 06:17 20m -18 / - SV9MBH - / -19 2 Partial capture
07-22 06:16 20m - / +5 RN6MA -22 / - 3 Partial capture
07-22 06:12 20m - / - DL3HBF +7 / - 8 Partial capture
07-22 06:12 20m -14 / - OD5ZZ - / -21 4 Partial capture
07-21 06:33 20m -6 / - SN1B - / - 2 Partial capture
07-21 06:26 20m -15 / - EA3AXS - / - 2 Partial capture
07-21 06:23 20m -21 / - YO2DSA - / -21 3 ✓ Closing fragment
07-19 06:14 20m -15 / - DA2DA - / - 4 Partial capture
07-19 06:11 20m -12 / -13 9A9TT -12 / -18 7 ✓ Full exchange observed
07-16 17:36 20m - / 0 DL6LAG -2 / - 2 ✓ Closing fragment
07-16 07:22 20m -13 / - K8A - / -13 2 Partial capture
07-16 07:16 20m - / +1 RN6MA -15 / - 3 Partial capture
07-16 07:13 20m - / -5 DL1MKW -7 / - 3 ✓ Closing fragment
07-16 07:06 20m -19 / - MB0LSI - / - 2 Partial capture
07-16 06:57 20m -15 / - PD0RWH - / -17 3 ✓ Closing fragment
07-16 06:49 20m -14 / - CT1FIU - / - 2 Partial capture
07-16 06:46 20m -16 / - EA5ISA - / -24 3 ✓ Closing fragment
07-16 06:39 20m -21 / - ON3CH - / -10 5 ✓ Closing fragment
07-11 09:37 20m - / -19 LB2YJ -20 / - 2 Partial capture
07-11 06:34 20m -20 / - F8NHF - / - 6 Partial capture
07-11 06:31 20m -12 / -23 DL70ESSEN -9 / -10 3 Partial capture
07-11 06:28 20m -17 / - SV9MBH - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
055545 -15 1392  UR7VU HB9EFK 73 (x2)
075145  -4 1472  CT7AUT UR7VU KN68
075500 -16 1525  UR7VU IN3WZS -13
075830 -10 1787  S55A UR7VU KN68
075930 -10 1459  CQ UR7VU KN68
080000 -13 1459  F5SJC UR7VU -06
080015  -5 1459  UR7VU F5SJC R-05
080030  -8 1459  F5SJC UR7VU RR73
080045  -6 1459  UR7VU F5SJC 73
080315 +15  464  UR7VU IK4LZH JN54
080345 -10 2018  UR7VU YO9PH -13
080345 +18  464  UR7VU IK4LZH JN54 (x3)
40m 
UTC    dB Audio  Message
171315 -10 1528  HA7JLR UR7VU R-18
171330 -21 1528  UR7VU HA7JLR RR73
171345 -11 1527  HA7JLR UR7VU 73
171430 -11 1530  IZ5HLP UR7VU KN68 (x2)
171745 -11 1540  <...> UR7VU KN68 (x3)
172045 -13 1585  SQ9M UR7VU R-05 (x2)
172200 -19 1586  UR7VU SQ9M RR73
172215 -16 1585  SQ9M UR7VU 73
172315 -11 1445  SM6FZO UR7VU KN68 (x2)
172630 -11 1470  DM9YL UR7VU KN68

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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