UT4PA — 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: KO20

Receiver-side FT8 activity involving UT4PA, decoded by SO8OO in southeastern Poland. 7,060 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 108 UTC dates in the available aggregate history. Observed between 2026-06-07 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 7,060 FT8 messages attributed to UT4PA as the transmitting token by decoded message structure across 108 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%), followed by 80 m (0%) and 20 m (0%). Most decodes (95%) fell within the six-hour window 05:00-11:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -6 dB.

Overview

7,060
Messages attributed
108
UTC dates decoded
1,296
Active 15-min windows
-6 dB
Estimated median S/N

Bands

80m · 24 40m · 7,028 20m · 8
First attributed message: 2026-06-07
Last attributed message: 2026-10-22 08:56 UTC

Observed FT8 message patterns

Attributed sample
7,060 messages
Active dates
108 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-16 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 859, moderate (-15 to -9 dB) 1,934, strong (≥ -8 dB) 4,267.

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 UT4PA 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 UT4PA

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
KO20 · 5,130 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
237 km (approx.)
Last such locator decoded
2026-10-22 08:56 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 UTCBandUT4PA S/NCounterpartCounterpart S/NMsgsCapture
10-22 08:51 40m +10 / - DD1LD - / - 2 Partial capture
10-22 08:50 40m +2 / -10 EU1KI -12 / - 3 Partial capture
10-22 08:48 40m +2 / - SP4BAO - / - 2 Partial capture
10-22 08:42 40m +2 / - M7IPY - / - 6 Partial capture
10-22 08:37 40m -2 / - ON6DZ - / -14 6 ✓ Closing fragment
10-22 08:29 40m -6 / - ON6DZ - / - 2 Partial capture
10-22 08:24 40m +3 / - MI7JUX - / - 3 Partial capture
10-22 07:36 40m - / -9 DF5AZ 0 / - 2 ✓ Closing fragment
10-22 06:30 40m - / -8 IU2PYG -10 / - 2 ✓ Closing fragment
10-21 08:25 40m +4 / - M7MPY - / - 3 Partial capture
10-21 08:19 40m +2 / -8 PH7Y -21 / -14 11 ✓ Full exchange observed
10-21 08:13 40m +2 / - IK3/UY7LA - / - 2 Partial capture
10-21 08:10 40m -2 / - HA70KFL -5 / +1 3 Partial capture
10-21 08:06 40m +3 / -5 UT3UEH -9 / -9 5 ✓ Closing observed
10-21 07:58 40m +1 / - OE8MDK - / - 5 Partial capture
10-21 07:51 40m 0 / - SP2MGR/P - / - 2 Partial capture
10-21 05:50 40m - / -6 IU8RFW -16 / - 4 ✓ Closing fragment
10-21 05:45 40m - / +8 DG9PC -11 / - 2 ✓ Closing fragment
10-21 05:33 40m - / -20 M9PAS -11 / - 5 Partial capture
10-14 07:24 40m +5 / - DA0M - / - 2 Partial capture
10-14 07:20 40m -16 / - G3RTE - / - 2 Partial capture
10-14 07:01 40m -9 / - G8VHI - / - 2 Partial capture
10-14 06:48 40m -2 / - ON4MHZ - / - 2 Partial capture
10-14 06:44 40m -19 / +5 OM6RU -10 / - 3 ✓ Closing observed
10-13 05:19 40m - / 0 IK7IJS -16 / - 3 Partial capture
10-12 07:00 40m -6 / +2 HA5WA -10 / +2 5 ✓ Full exchange observed
10-12 06:56 40m +2 / -9 LZ/TF1OL -7 / -2 3 Partial capture
10-12 06:42 40m -3 / -3 SP4MAZ -16 / 0 7 ✓ Full exchange observed
10-11 06:14 40m - / -13 UT5ZZ -6 / - 2 ✓ Closing fragment
10-10 07:36 40m -9 / -16 F4JTP -16 / -13 6 ✓ Full exchange observed
10-10 07:31 40m - / +2 S51GS -3 / - 4 Partial capture
10-10 07:28 40m +1 / - S51GS - / - 3 Partial capture
10-10 07:13 40m -12 / - M9YDD - / - 7 Partial capture
10-10 07:08 40m +3 / - F4JMX - / - 2 Partial capture
10-10 06:54 40m +5 / - 4O/DL1FDH - / - 3 Partial capture
10-10 06:44 40m -2 / - SQ8AZT -16 / -1 4 ✓ Closing observed
10-09 06:41 40m -4 / - G8VHI - / - 2 Partial capture
10-09 06:38 40m +4 / - SQ8DPZ - / - 2 Partial capture
10-09 06:18 40m +7 / -2 DL5KR -8 / -9 5 ✓ Full exchange observed
10-07 06:22 40m - / - LZ2WP -6 / - 2 Partial capture
10-07 05:03 40m - / +9 IQ6MW -7 / - 3 ✓ Closing fragment
10-06 06:20 40m - / -11 IU4MTO -12 / - 3 ✓ Closing fragment
10-06 05:13 40m - / -10 EA5GO -5 / - 2 Partial capture
10-05 07:15 40m +2 / - SP5DUJ -24 / -5 3 ✓ Closing observed
10-05 06:31 40m +5 / - AO5CV - / - 3 Partial capture
10-05 05:45 40m - / -15 3Z4DX -8 / - 2 ✓ Closing fragment
10-05 05:41 40m - / -7 DF9MV 0 / - 6 Partial capture
10-04 08:19 40m - / +2 DA125RH +4 / - 2 Partial capture
10-04 08:17 40m - / -24 DL0PMV -3 / - 2 ✓ Closing fragment
10-04 08:04 40m - / 0 UR5BLM -16 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
084300  +0 1388  M7IPY UT4PA KO20 (x5)
084700  +3 2089  2E0AAG UT4PA KO20
084815  +2 1538  SP4BAO UT4PA KO20 (x2)
085000  +2 1627  EU1KI UT4PA KO20
085015 -10 1706  UT4PA EU1KI -10 (x2)
085115  +9  650  DD1LD UT4PA KO20 (x2)
085300  +2 2088  2E0AAG UT4PA KO20
085615 +10  272  DL3ND UT4PA KO20
20m 
UTC    dB Audio  Message
054930 +13  978  UT4PA II7MGMU -08
060515 -14 2497  UT4PA IU1NGS +02
061330 -10  343  UT4PA LY5A -05 (x2)
061430 -13 1140  UT4PA R4FDW -11 (x8)
075545 -12  909  UT4PA IK7DTM JN71 (x3)

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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