UR5FS — 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: Ukraine Most frequent locator attributed to this token: KN56

Receiver-side FT8 activity involving UR5FS, decoded by SO8OO in southeastern Poland. 606 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 46 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-29.

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 606 FT8 messages attributed to UR5FS as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (64%), followed by 10 m (36%). Most decodes (56%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

606
Messages attributed
46
UTC dates decoded
134
Active 15-min windows
-9 dB
Estimated median S/N

Bands

20m · 387 10m · 219
First attributed message: 2026-06-07
Last attributed message: 2026-08-29 04:25 UTC

Observed FT8 message patterns

Attributed sample
606 messages
Active dates
46 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-18.7 to +1.2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 115, moderate (-15 to -9 dB) 207, strong (≥ -8 dB) 284.

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 UR5FS 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 UR5FS

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
KN56 · 371 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
781 km (approx.)
Last such locator decoded
2026-08-29 04:25 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 UTCBandUR5FS S/NCounterpartCounterpart S/NMsgsCapture
10-23 15:49 10m - / 0 EA4IPN -14 / - 5 ✓ Closing fragment
10-03 16:16 10m - / - EA7TS -13 / - 2 ✓ Closing fragment
08-28 17:44 20m -6 / -7 EA3IIM +6 / - 4 Partial capture
08-28 17:35 20m - / -18 BG8HNC -18 / - 2 ✓ Closing fragment
08-28 17:35 20m - / - M1AYZ -2 / - 2 Partial capture
08-28 06:40 20m -8 / - GM3AND - / - 5 Partial capture
08-28 05:23 20m -8 / - F5OYA/P - / -5 3 Partial capture
08-28 05:18 20m -8 / - VK3EVE - / -16 6 ✓ Closing fragment
08-28 05:14 20m 0 / - K2PSD - / - 2 Partial capture
08-26 04:43 20m - / -18 K1WY -17 / - 2 Partial capture
08-26 04:35 20m - / -4 KA9EKJ -3 / - 4 ✓ Closing fragment
08-26 04:32 20m - / +1 KM4G -18 / - 2 ✓ Closing fragment
08-26 04:28 20m - / -3 LZ7VV -19 / - 3 ✓ Closing fragment
08-26 04:24 20m - / - RZ4FWA -2 / - 4 Partial capture
08-26 04:20 20m - / -5 KA9EKJ -8 / - 2 Partial capture
08-26 04:08 20m - / -6 KD7PCE -4 / - 2 Partial capture
08-24 05:14 20m - / -6 8P6GE -16 / - 2 ✓ Closing fragment
08-23 15:42 10m - / -7 IK5PWQ -13 / - 3 ✓ Closing fragment
08-23 04:27 20m -8 / - VU2SW - / - 2 Partial capture
08-23 03:56 20m +4 / - K8IS -17 / -2 6 ✓ Closing observed
08-23 03:26 20m +3 / - VE3EIF - / - 5 Partial capture
08-23 03:23 20m -6 / - VA3MBT - / -13 3 Partial capture
08-22 05:07 20m - / -7 GB50PUNK +15 / - 2 Partial capture
08-22 05:05 20m - / -2 ON3KJU -9 / - 3 Partial capture
08-22 04:51 20m - / +2 R4FDW -19 / - 4 Partial capture
08-21 16:01 10m - / -24 IU1QZR -12 / - 5 ✓ Closing fragment
08-21 15:59 10m - / -14 DF7EE -4 / - 5 ✓ Closing fragment
08-21 15:59 10m - / -11 PD1RMB -8 / - 3 ✓ Closing fragment
08-21 15:52 10m - / -8 F5NAA +6 / - 3 ✓ Closing fragment
08-21 15:48 10m - / -10 DO6KDS -12 / - 2 ✓ Closing fragment
08-21 15:44 10m - / +3 IU2EBR -4 / - 2 ✓ Closing fragment
08-21 06:40 20m -1 / -4 YT1VDA -14 / - 4 Partial capture
08-20 15:58 10m -20 / -6 ON4AZR -17 / -9 5 ✓ Full exchange observed
08-20 05:10 20m -10 / -7 ZL2BX -14 / -9 4 ✓ Full exchange observed
08-20 04:34 20m - / -14 KD4SN -20 / - 3 ✓ Closing fragment
08-20 03:10 20m +1 / - N8HRZ - / -4 5 ✓ Closing fragment
08-19 13:45 10m - / -6 IW8XLD -4 / - 2 ✓ Closing fragment
08-18 11:26 10m - / -2 DL1ABI -13 / - 2 ✓ Closing fragment
08-16 18:31 20m -14 / - PD7JLP -6 / - 4 ✓ Closing observed
08-16 15:21 20m -7 / - <...> - / - 2 Partial capture
08-16 14:05 20m -16 / - Z35WTF - / - 2 Partial capture
08-15 05:14 20m -12 / - <...> - / -12 3 Partial capture
08-15 04:46 20m -4 / - KZ5DX - / -16 2 ✓ Closing fragment
08-13 18:21 20m - / -8 DD0AM -8 / - 2 ✓ Closing fragment
08-12 10:18 10m -12 / +5 IK7MIY -15 / - 3 Partial capture
08-12 10:04 10m -20 / - IK6LMB - / -16 2 ✓ Closing fragment
08-12 04:21 20m -16 / - OH0ERF - / -10 2 ✓ Closing fragment
08-12 03:03 20m - / -16 K4PRO -2 / - 3 ✓ Closing fragment
08-11 04:36 20m -17 / - VE3PFW - / - 3 Partial capture
08-11 04:30 20m -17 / - VE3PFW - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
150730 -16 1308  UR5FS DN9CHV RR73
154200  -7 1395  UR5FS IK5PWQ JN53 (x3)
154530 -17 2180  E77D UR5FS R-07
110300 -12 2539  UR5FS V51WH RR73
131515 -12 2099  UR5FS EC5M -07
161630 -17 1227  UR5FS EA7TS +16 (x2)
142100 -12  699  UR5FS P4/WE9V -10
154915 -15 1904  UR5FS EA4IPN +00 (x5)
20m 
UTC    dB Audio  Message
064045  -6 2117  GM3AND UR5FS KN56 (x4)
173415  -5 2802  UR5FS UA0LQE PN53
173545  -4  800  UR5FS M1AYZ IO94
173545 -18 1854  UR5FS BG8HNC -18
173615 -16 2427  UR5FS UR5KC KO30
173615  +1  800  UR5FS M1AYZ IO94
173615 -18 1854  UR5FS BG8HNC RR73
174415  -3 1068  EA3IIM UR5FS KN56
174430  +7 1068  UR5FS EA3IIM -07
174445  -8 1067  EA3IIM UR5FS KN56
174500  +6 1068  UR5FS EA3IIM -05
042500  -7 1911  ZL1BQD UR5FS KN56

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee