OH1ZE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Finland Most frequent locator attributed to this token: KP10

Receiver-side FT8 activity involving OH1ZE, decoded by SO8OO in southeastern Poland. 2,724 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 39 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-09-15.

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 2,724 FT8 messages attributed to OH1ZE as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (68%), followed by 40 m (28%) and 20 m (3%). Most decodes (83%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -2 dB.

Overview

2,724
Messages attributed
39
UTC dates decoded
238
Active 15-min windows
-2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-29
Last attributed message: 2026-09-15 05:55 UTC

Observed FT8 message patterns

Attributed sample
2,724 messages
Active dates
39 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-12 to +9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 83, moderate (-15 to -9 dB) 462, strong (≥ -8 dB) 2,179.

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 OH1ZE

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
KP10 · 2,101 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,177 km (approx.)
Last such locator decoded
2026-09-15 05:55 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 UTCBandOH1ZE S/NCounterpartCounterpart S/NMsgsCapture
09-15 01:24 80m +5 / - UN7LAN - / +4 11 Partial capture
09-15 01:23 80m - / - RD9M/3 +1 / - 4 Partial capture
09-15 01:19 80m - / - UN7LAN -22 / - 2 Partial capture
09-15 01:06 80m +14 / - OH0Z - / - 2 Partial capture
09-15 01:05 80m +4 / - EX7DY - / - 36 Partial capture
09-15 01:00 80m +12 / -6 SP8XXX +5 / -2 7 ✓ Full exchange observed
09-15 00:59 80m +10 / - EX7DY - / - 8 Partial capture
09-15 00:56 80m +13 / - 8R1TM - / - 6 Partial capture
09-15 00:48 80m +11 / - 8R1TM - / - 3 Partial capture
09-15 00:44 80m +10 / - EX7DY - / - 17 Partial capture
09-15 00:42 80m +2 / - 8R1TM - / - 3 Partial capture
09-14 22:21 80m -5 / - G4RCV - / - 8 Partial capture
09-14 22:19 80m +2 / -2 G4DZE -4 / -4 5 ✓ Full exchange observed
09-14 22:12 80m 0 / -4 VO1HP -4 / +1 16 ✓ Full exchange observed
09-14 22:09 80m -2 / - SA6BZZ -2 / - 7 ✓ Full exchange observed
09-14 22:07 80m +8 / -3 ON4CJU -4 / +5 5 ✓ Full exchange observed
09-14 22:06 80m +16 / - II8IHBC - / - 2 Partial capture
09-14 22:05 80m +15 / - G4RCV - / - 2 Partial capture
09-14 22:03 80m +10 / - II4IANT - / +4 2 Partial capture
09-14 22:01 80m +10 / - 8S2C - / +2 3 ✓ Closing fragment
09-14 22:00 80m +14 / +3 SP9ENV +7 / - 4 ✓ Full exchange observed
09-14 21:56 80m +7 / - F5NNN -9 / -10 4 ✓ Closing observed
09-14 21:56 80m +10 / -13 US2YW +20 / +3 7 ✓ Full exchange observed
09-14 21:54 80m +8 / -13 OH2NAG +2 / - 5 ✓ Full exchange observed
09-14 02:15 80m +1 / -21 IK4TVP -5 / - 4 ✓ Closing observed
09-14 02:14 80m +2 / - ON4MAP - / -6 2 Partial capture
09-14 02:13 80m +4 / - HF100PKP - / - 2 Partial capture
09-14 02:09 80m +1 / - OZ1KEF - / - 7 Partial capture
09-14 02:06 80m -5 / -2 M9DJN -24 / +1 8 ✓ Full exchange observed
09-14 02:04 80m -2 / - R9WCK - / -15 3 Partial capture
09-14 01:56 80m -2 / - HI8JCD - / - 14 Partial capture
09-14 01:30 40m - / -17 EP2AES -15 / - 3 ✓ Closing fragment
09-13 19:28 40m -5 / - EA3IWJ/P - / - 11 Partial capture
09-13 01:06 80m -2 / - HI8JCD - / - 4 Partial capture
09-13 01:05 80m -4 / - OH2LV - / - 2 Partial capture
09-13 01:02 80m -2 / - TF3VS - / - 5 Partial capture
09-13 01:01 80m -4 / - HI8JCD - / - 2 Partial capture
09-12 23:34 40m - / -5 PD2RAL +8 / - 2 ✓ Closing fragment
09-12 23:28 80m -6 / - OH2LV - / - 2 Partial capture
09-12 22:54 40m -7 / - G1CEC - / - 3 Partial capture
09-12 22:46 40m -9 / - CE3SOC - / - 12 Partial capture
09-12 22:41 40m -6 / - EA8BS - / -2 5 Partial capture
09-12 22:39 40m -6 / - ZS6NL - / -8 3 ✓ Closing fragment
09-12 22:37 40m -10 / - BH4GUU - / - 3 Partial capture
09-12 22:29 40m -8 / - BD3PPH - / - 4 Partial capture
09-12 22:21 40m -8 / - EA8BS - / - 8 Partial capture
09-12 22:19 40m -1 / -24 R6LPF -10 / -6 4 ✓ Full exchange observed
09-12 22:17 40m -4 / - HI3T - / -2 5 ✓ Closing fragment
09-12 22:12 40m -7 / - DS5USH - / - 7 Partial capture
09-12 22:08 40m -8 / -15 LB6NK -4 / -3 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
192845  -3 2827  EA3IWJ/P OH1ZE KP10 (x11)
013045 -13 2392  OH1ZE EP2AES -17 (x3)
055500 -24 2768  <3Z25AB> OH1ZE KP10
80m
UTC    dB Audio  Message
012345  +4 2756  EX7DY OH1ZE KP10
012445  +8 2756  UN7LAN OH1ZE +04
012445  +4 2403  <OH1ZE> RD9M/3
012515 +12 2755  UN7LAN OH1ZE +04
012515  +1 2402  <OH1ZE> RD9M/3
012545  +8 2756  UN7LAN OH1ZE +04
012545  -1 2402  OH1ZE RD9M/3
012615  +8 2755  UN7LAN OH1ZE +04 (x8)
20m
UTC    dB Audio  Message
074215 -14 2768  Z62NS OH1ZE KP10 (x5)
071715 -15 2769  GU0SUP OH1ZE KP10 (x4)
181330 -16  581  OH1ZE RR73; DL6UCK <...> +00
181800 -11 2826  OH1ZE OM2ZZ R-26
195945 -14  481  OH1ZE XW4KV RR73
200145  +0 1930  OH1ZE G4DBW JO01 (x3)
10m
UTC    dB Audio  Message
110315  -5  442  OH1ZE IK4LZH RR73
083830  -5 2089  OH1ZE HB9ACA -11 (x2)
091300  -9  604  OH1ZE SV1CQN -16
092100  -6 1223  OH1ZE SV7BAY RR73 (x2)
100215 -17 2063  OH1ZE HG8LXL 73
113715 -11 2575  OH1ZE RK4FF -04
124515 -19 1933  OH1ZE IT9CMZ -17 (x2)
124945 -20 1347  OH1ZE HB9BWE JN47 (x4)
073345 -17 1043  OH1ZE OD5VB -06

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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