SP1DOZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO73

Receiver-side FT8 activity involving SP1DOZ, decoded by SO8OO in southeastern Poland. 76 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-16.

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 76 FT8 messages attributed to SP1DOZ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (74%), followed by 20 m (16%) and 80 m (11%). Several six-hour UTC windows tied for the largest share (72%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

76
Messages attributed
5
UTC dates decoded
12
Active 15-min windows
-9 dB
Estimated median S/N

Bands

80m · 8 40m · 56 20m · 12
First attributed message: 2026-06-10
Last attributed message: 2026-09-16 12:56 UTC

Observed FT8 message patterns

Attributed sample
76 messages
Active dates
5 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-20 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 34.

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 SP1DOZ 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 SP1DOZ

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
JO73 · 47 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
613 km (approx.)
Last such locator decoded
2026-09-16 12:51 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 UTCBandSP1DOZ S/NCounterpartCounterpart S/NMsgsCapture
09-16 12:54 80m -21 / - DO1OAS - / -17 3 Partial capture
09-16 12:49 40m -7 / - F1IQH - / -16 2 ✓ Closing fragment
09-16 12:47 40m -6 / -13 UW5KW -12 / -1 5 ✓ Full exchange observed
09-16 12:46 40m -12 / - DJ0MAB -20 / +7 4 ✓ Closing observed
09-16 12:42 40m -7 / - SQ9SET - / -19 5 ✓ Closing fragment
09-16 11:45 40m - / - DL6EL -4 / - 3 Partial capture
09-16 11:43 40m -8 / - DM0CRACY - / -13 4 Partial capture
09-16 11:28 40m -5 / - DM0CRACY - / -1 3 Partial capture
09-13 15:21 40m -9 / - EX7CQ - / - 4 Partial capture
09-13 15:06 40m -8 / - SQ100PKP - / - 5 Partial capture
09-13 15:01 80m -15 / -5 DO7RMA -18 / -9 4 ✓ Full exchange observed
08-18 18:57 40m -13 / - SV3AUW - / - 6 Partial capture
08-18 18:55 40m -15 / - SQ5OMY - / - 3 Partial capture
07-25 14:36 40m -15 / - IK4LZH - / +7 4 Partial capture
07-25 14:33 40m - / - UA3ZUX -11 / - 2 Partial capture
07-25 14:32 40m -20 / - RV3YN - / -10 2 ✓ Closing fragment
07-25 14:24 40m -24 / - DH7MG - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
150130 -19 2056  SP1DOZ DO7RMA -05
150145 -18 1150  DO7RMA SP1DOZ R-09
150200 -18 2056  SP1DOZ DO7RMA RR73
150215 -12 1150  DO7RMA SP1DOZ 73
153115  -6 1018  CQ SP1DOZ JO73 (x3)
125415 -24 1513  DO1OAS SP1DOZ -17 (x3)
40m 
UTC    dB Audio  Message
124615  -6 1207  CQ SP1DOZ JO73
124630 -18 1207  SP1DOZ DJ0MAB JN49
124645 -10 1207  DJ0MAB SP1DOZ +07 (x2)
124730 -12 1338  SP1DOZ UW5KW KO30
124730 -21 1207  SP1DOZ DJ0MAB 73
124745  -5 1207  UW5KW SP1DOZ -01
124800 -12 1338  SP1DOZ UW5KW R-13
124815  -8 1207  UW5KW SP1DOZ RR73
124830 -12 1339  SP1DOZ UW5KW 73
124915  -6 1206  CQ SP1DOZ JO73
124945  -3 1206  F1IQH SP1DOZ -16 (x2)
125115  -2 1546  CQ SP1DOZ JO73 (x2)

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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