UY5AX — 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: KO70

Receiver-side FT8 activity involving UY5AX, decoded by SO8OO in southeastern Poland. 739 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.

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 739 FT8 messages attributed to UY5AX as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 80 m (37%) and 20 m (19%). Most decodes (60%) 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 -7 dB.

Overview

739
Messages attributed
62
UTC dates decoded
122
Active 15-min windows
-7 dB
Estimated median S/N

Bands

80m · 272 40m · 323 20m · 144
First attributed message: 2026-06-06
Last attributed message: 2026-10-22 14:12 UTC

Observed FT8 message patterns

Attributed sample
739 messages
Active dates
62 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-18 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 150, moderate (-15 to -9 dB) 182, strong (≥ -8 dB) 407.

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 UY5AX 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 UY5AX

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
KO70 · 474 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-10-22 14:12 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 UTCBandUY5AX S/NCounterpartCounterpart S/NMsgsCapture
10-22 14:13 40m - / - OE3RHI -2 / - 4 Partial capture
10-17 17:20 80m - / +3 R2EN -1 / - 2 Partial capture
10-17 17:18 80m -4 / +3 UR5RBP -16 / -3 5 ✓ Full exchange observed
10-16 17:15 80m -13 / -10 DO2NM +6 / -15 5 ✓ Full exchange observed
10-13 17:55 80m +3 / +4 OM6APJ +14 / +8 5 ✓ Full exchange observed
10-13 17:53 80m +3 / 0 UR5VLC -3 / +8 5 ✓ Full exchange observed
10-13 17:47 80m -10 / +5 SP4SKN +12 / - 3 Partial capture
10-13 17:47 80m - / -6 EO210WLP +4 / - 6 Partial capture
10-13 17:45 80m -1 / - DL/AD2LX - / - 2 Partial capture
10-13 17:42 80m +2 / -10 DL8TV +1 / -10 5 ✓ Full exchange observed
10-13 17:41 80m -2 / - DL/AD2LX - / -10 2 Partial capture
10-13 17:39 80m -2 / -8 HF5A -13 / -10 5 ✓ Full exchange observed
10-13 17:37 80m -6 / -5 DK0RMR -4 / -17 5 ✓ Full exchange observed
10-10 23:57 80m -5 / - EI4JFB - / -17 2 ✓ Closing fragment
10-10 23:56 80m - / - F1IQH -6 / - 3 Partial capture
10-10 23:56 80m - / - PC2J +10 / - 5 Partial capture
10-07 02:33 40m - / - UA4FKT -20 / - 2 Partial capture
10-06 04:11 40m - / -13 RC9WC -7 / - 2 Partial capture
10-06 03:51 40m -22 / - 4X6ZK - / - 2 Partial capture
10-06 03:49 40m - / -10 LX1TI +4 / - 2 ✓ Closing fragment
10-06 03:29 80m -5 / - Z61DX - / - 3 Partial capture
10-06 03:23 80m -12 / - US2YW - / - 3 Partial capture
10-06 03:20 80m -5 / - UX2QX - / +1 4 ✓ Closing fragment
10-06 03:19 80m - / - OH1TSM -7 / - 2 Partial capture
10-06 03:14 80m - / +3 UT2AU 0 / - 2 ✓ Closing fragment
10-06 03:08 40m -18 / -9 LZ2FL -11 / - 5 Partial capture
09-30 16:21 40m -6 / - OH2CTS - / - 2 ✓ Closing fragment
09-29 17:07 40m - / - OK8UQ -9 / - 2 Partial capture
09-29 17:03 40m +4 / - VJ6X - / -18 7 ✓ Closing fragment
09-29 16:57 40m -1 / +6 LZ3CB +15 / - 6 ✓ Full exchange observed
09-29 16:55 40m -7 / - DL1AWD - / - 3 Partial capture
09-29 12:28 40m -18 / - TM14LEO - / - 2 Partial capture
09-29 12:27 40m -20 / -5 S55OO +4 / -9 4 ✓ Full exchange observed
09-29 05:56 40m - / -15 DF9HT/P -14 / - 3 Partial capture
09-29 05:52 40m -8 / - DF9HT/P - / - 2 Partial capture
09-24 15:54 80m -6 / -3 YO2UKG 0 / -12 4 ✓ Full exchange observed
09-24 15:51 80m -10 / - UN7CL - / -10 4 ✓ Closing fragment
09-21 17:31 80m +1 / - RI1FJZ - / - 7 Partial capture
09-21 01:56 80m -1 / - C31KC - / -16 4 ✓ Closing fragment
09-21 01:51 80m 0 / -4 TF4M +2 / -7 6 ✓ Full exchange observed
09-21 01:47 80m -7 / - DM9EE - / - 4 Partial capture
09-21 01:46 80m +2 / -9 PA4PA +8 / -4 5 ✓ Full exchange observed
09-21 01:44 80m +2 / -11 EC3A -10 / -15 4 ✓ Full exchange observed
09-21 01:43 80m -4 / - DO5HOK -2 / -11 4 ✓ Closing observed
09-20 02:16 40m - / -22 PD2ET +8 / - 2 ✓ Closing fragment
09-13 09:13 40m - / -11 SO3UOU/M -7 / - 2 Partial capture
09-13 09:10 40m -9 / 0 UR8MH -18 / - 4 ✓ Closing observed
09-13 02:51 80m -2 / - UY0HY +4 / -4 4 ✓ Full exchange observed
09-13 02:41 80m -8 / - TF3VS - / - 3 Partial capture
09-13 02:34 80m +2 / +8 OH2BVT -6 / -12 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
035230 -22 2032  4X6ZK UY5AX KO70
035330 -19 2033  CQ UY5AX KO70 (x2)
035415  -4 2798  UY5AX DL3NAA JN38
035500 -23 2032  CQ UY5AX KO70                         a1
041130  -6  752  UY5AX RC9WC -13 (x2)
023300 -17 2204  UY5AX UA4FKT LO23 (x2)
023315 -15 1175  KP4LBA UY5AX KO70
141245 -12 1560  CQ UY5AX KO70
141330  -2  838  UY5AX OE3RHI JN87 (x4)
80m 
UTC    dB Audio  Message
175600 +14 2540  UY5AX OM6APJ R+04
175615  +6 2540  OM6APJ UY5AX RR73
175630 +10 2540  UY5AX OM6APJ 73
171545  -9 1369  DO2NM UY5AX KO70 (x3)
171700  +6  933  UY5AX DO2NM R-10 (x2)
171845  -2 2202  UR5RBP UY5AX KO70
171900 -21  282  UY5AX UR5RBP +03
171915  -7 2202  UR5RBP UY5AX R-03
171930 -12  282  UY5AX UR5RBP RR73
171945  -2 2202  UR5RBP UY5AX 73
172000  -1 2408  UY5AX R2EN +03 (x2)
20m 
UTC    dB Audio  Message
083815 -18  980  9A6NTK UY5AX KO70 (x2)
083900  +7  927  UY5AX 9A6NTK -03 (x2)
143315 -18 1316  CQ UY5AX KO70 (x2)
135430  -3 1240  OH2BDW UY5AX KO70 (x4)
135730  +3 1240  CQ UY5AX KO70 (x2)
135830  +2 1240  SP5WCK UY5AX R+01 (x2)
075600  +0 1779  <...> UY5AX KO70
10m 
UTC    dB Audio  Message
162015 -18 1073  UY5AX IU7BPO 73

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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