UT7ZM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN57

Receiver-side FT8 activity involving UT7ZM, decoded by SO8OO in southeastern Poland. 211 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-05.

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 211 FT8 messages attributed to UT7ZM as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (41%), followed by 40 m (34%) and 80 m (25%). Several six-hour UTC windows tied for the largest share (89%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +5 dB.

Overview

211
Messages attributed
13
UTC dates decoded
35
Active 15-min windows
+5 dB
Estimated median S/N

Bands

80m · 52 40m · 72 20m · 87
First attributed message: 2026-06-06
Last attributed message: 2026-09-05 04:36 UTC

Observed FT8 message patterns

Attributed sample
211 messages
Active dates
13 UTC dates
Estimated median S/N
+5 dB
Estimated 10th-90th percentile
-9 to +15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 188.

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 UT7ZM 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 UT7ZM

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
KN57 · 119 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
727 km (approx.)
Last such locator decoded
2026-09-05 04:35 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 UTCBandUT7ZM S/NCounterpartCounterpart S/NMsgsCapture
09-05 04:35 40m +10 / - MI0NWA - / -18 3 Partial capture
09-05 04:30 40m +16 / -12 EB3JT -2 / - 5 ✓ Closing observed
09-05 04:29 40m +8 / -16 MI0OBC -6 / -17 4 ✓ Full exchange observed
09-05 04:26 40m +18 / - HC1HC -1 / -15 7 ✓ Closing observed
09-05 04:05 40m +9 / - OA4ENG -12 / -18 2 ✓ Closing observed
09-05 03:57 40m +20 / - HK0RMR - / - 4 Partial capture
09-02 04:02 40m - / -20 HK3J -8 / - 7 Partial capture
09-02 03:59 40m +14 / - HK3J - / - 2 Partial capture
09-02 03:55 40m +5 / - CT7AUT - / -15 5 ✓ Closing fragment
09-02 03:53 40m +4 / - KJ7WNK - / - 2 Partial capture
09-02 03:45 40m +11 / - WB8BPU -6 / -10 7 ✓ Closing observed
09-02 03:43 40m +14 / -7 W4CHA -5 / - 3 Partial capture
09-02 03:38 40m +10 / - W4DXR - / -16 3 ✓ Closing fragment
09-02 03:34 40m +16 / - AC4SP - / - 2 Partial capture
09-02 03:32 40m +13 / - WZ4K - / - 3 Partial capture
08-31 05:57 20m - / -5 IW5ALZ -7 / - 2 ✓ Closing fragment
08-31 05:56 20m - / -4 RN6MA +9 / - 4 Partial capture
08-29 13:44 20m - / - PA3CWQ -4 / - 2 ✓ Closing fragment
08-29 13:43 20m - / - F1PSX -14 / - 2 ✓ Closing fragment
08-29 13:41 20m - / - HB9IIH -17 / - 2 ✓ Closing fragment
08-29 13:38 20m - / - PE4BEN -3 / - 6 ✓ Closing fragment
08-28 14:23 20m 0 / - HL5XL - / - 8 Partial capture
08-22 03:30 20m 0 / - <...> - / - 3 Partial capture
08-22 03:25 20m +9 / - <...> - / - 2 Partial capture
08-22 03:20 20m -2 / - FR5CN - / - 3 Partial capture
08-22 03:18 20m -4 / - VE3XN - / - 2 Partial capture
08-22 03:17 20m -7 / - FR5CN - / - 2 Partial capture
08-22 03:12 20m +6 / - <...> - / - 3 Partial capture
08-22 02:57 20m +10 / - XQ1KK -12 / -8 4 ✓ Closing observed
08-22 02:51 20m +4 / - CE3RKW - / - 4 Partial capture
08-22 02:17 80m +2 / - N4QS - / - 2 Partial capture
08-22 02:12 80m +1 / - N4QS - / - 3 Partial capture
08-22 02:11 80m +15 / - CT2HEX -15 / -14 3 ✓ Closing observed
08-22 02:10 80m - / - DO1MGN -22 / - 5 Partial capture
08-22 02:10 80m +15 / -5 SV9MBH -14 / +2 4 ✓ Full exchange observed
08-22 02:08 80m +16 / +9 OH3DJP -16 / -9 5 ✓ Full exchange observed
08-22 02:07 80m +16 / +6 DO5PY -9 / -12 5 ✓ Full exchange observed
08-22 02:05 80m +17 / - EC3A - / -4 2 ✓ Closing fragment
08-22 02:03 80m +16 / -9 F5NNN -4 / -11 7 ✓ Full exchange observed
08-22 02:03 80m +16 / -2 MM0KQC -6 / +2 4 ✓ Full exchange observed
08-22 02:02 80m +13 / -19 PE1NPS -8 / -17 9 ✓ Full exchange observed
08-22 02:01 80m +14 / -5 F4FPR -15 / -6 5 ✓ Full exchange observed
08-22 02:00 80m +14 / - EA5HM - / -5 2 ✓ Closing fragment
08-22 01:59 80m - / -3 MM0KQC -9 / - 2 Partial capture
08-22 01:58 80m +10 / -6 G8OO -7 / -8 5 ✓ Full exchange observed
08-22 01:58 80m - / - UA4FKT +7 / - 4 Partial capture
08-22 01:56 80m +12 / -2 EA5JK 0 / +10 6 ✓ Full exchange observed
08-22 01:45 80m +4 / - TF3VS - / - 10 Partial capture
08-22 01:39 80m +8 / - TF3VS - / - 7 Partial capture
07-28 02:38 40m -4 / - XQ3SK - / -22 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
042915  -1 2917  UT7ZM HC1HC RR73
042930 +21 2917  HC1HC UT7ZM 73
042945  -4 2776  UT7ZM MI0OBC -16
043000  +5 2776  MI0OBC UT7ZM R-17
043015  -8 2847  UT7ZM N3FCP FM29
043015  -7 2776  UT7ZM MI0OBC RR73
043030 +10 2778  MI0OBC UT7ZM 73
043045  -2 2779  UT7ZM EB3JT JN01 (x3)
043200 +16 2779  EB3JT UT7ZM RR73
043215  -6 2779  UT7ZM EB3JT 73
043515  +8  582  MI0NWA UT7ZM KN57 (x3)
20m 
UTC    dB Audio  Message
134015  +4 2645  UT7ZM PE4BEN JO22 (x2)
134115 -15 1698  UT7ZM HB9IIH R JN36 (x2)
134315 -14 1752  UT7ZM F1PSX JN08 (x2)
134445  -4 1752  UT7ZM PA3CWQ JO21 (x2)
143415  -7 2072  UT7ZM JA6GCE R PM52
055615 +10 1334  UT7ZM RN6MA -04 (x4)
055745  -7 2968  UT7ZM IW5ALZ R-05 (x2)
80m 
UTC    dB Audio  Message
021030 -22  814  UT7ZM DO1MGN JO50
021045 +13  907  SV9MBH UT7ZM RR73
021100 -13 1487  UT7ZM SV9MBH 73
021100 -23  814  UT7ZM DO1MGN JO50
021115 +15  907  CT2HEX UT7ZM -14 (x2)
021200 -18  814  UT7ZM DO1MGN JO50
021200 -15 1804  UT7ZM CT2HEX 73
021230  -1 2105  N4QS UT7ZM KN57
021230 -21  814  UT7ZM DO1MGN JO50
021300  +1 2105  N4QS UT7ZM KN57
021300 -24  814  UT7ZM DO1MGN JO50
021330  +2 2105  N4QS UT7ZM KN57 (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.

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