UR4LRG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KO80

Receiver-side FT8 activity involving UR4LRG, decoded by SO8OO in southeastern Poland. 2,869 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-11.

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 2,869 FT8 messages attributed to UR4LRG as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (65%), followed by 20 m (19%) and 40 m (7%). Most decodes (66%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (96%); the estimated median was +7.2 dB.

Overview

2,869
Messages attributed
64
UTC dates decoded
254
Active 15-min windows
+7.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-11 17:00 UTC

Observed FT8 message patterns

Attributed sample
2,869 messages
Active dates
64 UTC dates
Estimated median S/N
+7.2 dB
Estimated 10th-90th percentile
-4 to +16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 99, strong (≥ -8 dB) 2,750.

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.

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 UR4LRG

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
KO80 · 1,262 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,082 km (approx.)
Last such locator decoded
2026-10-11 17:00 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 UTCBandUR4LRG S/NCounterpartCounterpart S/NMsgsCapture
10-11 16:58 80m -6 / -13 DO3KI +6 / -11 4 ✓ Full exchange observed
10-11 16:55 80m +7 / - EY8BL - / - 6 Partial capture
10-11 16:03 80m -7 / - JA2LCP - / -13 3 ✓ Closing fragment
10-10 18:26 80m +16 / - DK3TNA -10 / -5 4 ✓ Closing observed
10-10 18:24 80m +12 / +1 OH2GBA -24 / -17 3 ✓ Full exchange observed
10-10 18:21 80m - / - OH2GBA -16 / - 2 Partial capture
10-10 18:18 80m +12 / - RU3T -5 / -2 3 ✓ Closing observed
10-10 18:05 80m +12 / - ON4MGV -11 / -10 5 Partial capture
10-10 18:00 80m +5 / -9 DO3ANK +3 / -11 7 ✓ Full exchange observed
10-10 17:59 80m - / - OE2AGZ -9 / - 5 Partial capture
10-10 17:36 80m +5 / - DL4DTL -2 / -18 3 ✓ Closing observed
10-10 17:18 80m +9 / +10 RW3QW -12 / +2 5 ✓ Full exchange observed
10-10 17:13 80m - / -24 OM3PC +24 / - 3 ✓ Closing fragment
10-10 16:51 80m +4 / - JA1ILA - / -19 3 ✓ Closing fragment
10-07 18:30 80m -11 / - EA8DO - / -11 5 Partial capture
10-07 03:59 40m +9 / - C5R - / -11 23 Partial capture
10-07 03:52 80m +3 / - N0BUZ - / -18 3 Partial capture
10-07 03:51 80m - / - F5LMJ -17 / - 3 Partial capture
10-07 03:50 80m +2 / +3 YO8RAW +4 / 0 4 ✓ Full exchange observed
10-07 03:48 80m +5 / - UT2AU -5 / +4 5 ✓ Full exchange observed
10-07 03:48 80m +6 / - YO9HP - / -11 2 ✓ Closing fragment
10-07 03:46 80m - / - F5LMJ -15 / - 3 Partial capture
10-07 03:46 80m +2 / -3 HF1Z +1 / -11 5 ✓ Full exchange observed
10-07 03:46 80m - / - F5RAV -2 / - 3 Partial capture
10-07 03:45 80m +4 / - DO5OT +15 / -3 5 ✓ Full exchange observed
10-07 03:43 80m +5 / - KP2B -21 / -18 4 ✓ Closing observed
10-06 03:56 80m -5 / - NP3RK - / -15 3 Partial capture
10-06 03:52 80m +2 / - TI2SD - / -18 3 Partial capture
10-06 03:50 80m +8 / - HI3R - / -21 2 Partial capture
10-06 03:49 80m +2 / - TI2SD - / - 2 Partial capture
10-05 04:06 80m +12 / - YO3GNF - / -5 2 ✓ Closing fragment
10-05 04:04 80m +8 / -4 DJ4WM +4 / -5 5 ✓ Full exchange observed
10-05 04:02 80m +10 / -4 DO9YU -14 / -16 4 ✓ Full exchange observed
10-05 04:01 80m +10 / -5 EB1LA -4 / -12 7 ✓ Full exchange observed
10-05 03:59 80m +8 / - ON4MAP - / -17 2 ✓ Closing fragment
10-05 03:59 80m +10 / -3 DL8TV -4 / -16 6 ✓ Full exchange observed
10-05 03:53 80m +8 / -11 UT5MB +4 / 0 4 ✓ Full exchange observed
10-05 03:52 80m +12 / - YO3GNF -5 / -4 9 Partial capture
10-05 03:48 80m +9 / -1 HK3TY -11 / -14 11 ✓ Full exchange observed
10-05 03:46 80m +6 / -9 DO8JB +2 / -13 3 ✓ Full exchange observed
10-05 03:45 80m +4 / +2 YO9HP -1 / -3 4 ✓ Full exchange observed
10-05 03:44 80m +6 / -3 GM6URC 0 / -7 4 ✓ Full exchange observed
10-05 03:43 80m +6 / - CX6TU - / -18 2 ✓ Closing fragment
10-04 18:21 80m +10 / - EY8BL - / -12 8 Partial capture
10-04 18:13 80m -6 / - EY8BL - / -13 4 Partial capture
10-04 15:41 80m - / -4 OH5YZ -18 / - 3 Partial capture
10-04 15:37 80m -10 / - RA6SA +4 / - 2 ✓ Closing observed
10-04 15:32 80m +7 / -7 RW9MZ -11 / -3 6 ✓ Full exchange observed
10-04 15:20 80m - / - RW9MZ -12 / - 2 Partial capture
10-04 15:20 80m +8 / - RA3BQ -6 / -1 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
160600  +3 2746  CQ UR4LRG KO80 (x4)
165530  +7 2746  EY8BL UR4LRG KO80 (x4)
165815  +8  513  UR4LRG DO3KI JO40
165830  -6 2746  DO3KI UR4LRG -11
165845  +0 2746  UR4LRG DO3KI R-13 (x2)
165930  +3  428  EY8BL UR4LRG KO80 (x2)
180515  +0  515  UR4LRG OZ1BM 73
40m
UTC    dB Audio  Message
040415  +7 2796  C5R UR4LRG KO80 (x15)
160m
UTC    dB Audio  Message
031745 -23 1947  UR4LRG W3LL FM19
031745 +14  583  UR4LRG UX7QV R-19
031800 +13  583  UX7QV UR4LRG RR73
031815 +10  583  UR4LRG UX7QV 73
031830 +13  583  CQ UR4LRG KO80 (x4)
032015 -11  583  UR4LRG EA1CQ -06
032030 +13  583  CQ UR4LRG KO80
032045  -5  583  UR4LRG EA1CQ -06
032100 +11  582  YL2EA UR4LRG R-09
032115  +2 2101  UR4LRG YL2EA RR73
032130 +13  583  YL2EA UR4LRG 73
032145  +0 2467  UR4LRG HF5A JO92
20m
UTC    dB Audio  Message
035845 +10 1528  UR4LRG R4FDK LO23
035900  +0  345  WN3DX UR4LRG RR73
035915  +4 1528  UR4LRG R4FDK LO23
035930  +1  345  CQ UR4LRG KO80
035945 +11 1528  UR4LRG R4FDK LO23
040000  +4  345  K0IS UR4LRG -13
040015  +6 1528  UR4LRG R4FDK LO23
040030  +5  345  K0IS UR4LRG -13
040045  +8 1528  UR4LRG R4FDK LO23
040100  -4  345  K0IS UR4LRG RR73
040130  -7  345  VK2PV UR4LRG -17 (x2)
040230  -5  345  WA8AHZ UR4LRG -24 (x2)
042715 -11 2238  UR4LRG ZP5DBC R-10
10m
UTC    dB Audio  Message
071430  -7  380  JQ1DPP UR4LRG -07
083930  -6  327  G3VPW UR4LRG RR73
084000  -5  327  CQ UR4LRG KO80 (x3)
084300 -10  329  DK8EE UR4LRG -13 (x10)

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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