PD1ADA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving PD1ADA, decoded by SO8OO in southeastern Poland. 13,931 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-08.

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 13,931 FT8 messages attributed to PD1ADA as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (86%), followed by 10 m (10%) and 40 m (4%). Most decodes (55%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

13,931
Messages attributed
77
UTC dates decoded
1,620
Active 15-min windows
-15 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-09-08 06:57 UTC

Observed FT8 message patterns

Attributed sample
13,931 messages
Active dates
77 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-21 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6,645, moderate (-15 to -9 dB) 5,017, strong (≥ -8 dB) 2,269.

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 PD1ADA

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
JO21 · 10,729 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-09-08 06:57 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 UTCBandPD1ADA S/NCounterpartCounterpart S/NMsgsCapture
09-08 06:57 40m -15 / - MI0TMW - / - 2 Partial capture
09-07 20:01 40m -5 / - G6LTT - / - 9 Partial capture
09-07 19:40 40m - / +4 DL2DBI -15 / - 2 ✓ Closing fragment
09-07 16:26 40m -9 / - YE1BON - / - 3 Partial capture
09-07 16:22 40m -12 / - RX9WM -13 / - 2 ✓ Closing observed
09-07 15:19 40m -21 / - R1AI - / - 2 Partial capture
09-07 08:48 40m -22 / - M8FQT - / - 2 Partial capture
09-07 07:39 40m -18 / - IU3IOV -13 / -12 3 Partial capture
09-07 07:35 40m -18 / - EA2EED - / -8 6 Partial capture
09-07 07:34 40m -16 / - DK3HJ -18 / -5 3 ✓ Closing observed
09-07 07:28 40m -17 / - SM7MME - / -16 5 ✓ Closing fragment
09-07 07:25 40m -13 / - KB3Z - / -19 3 Partial capture
09-04 13:15 40m -23 / - DA1ST - / - 2 Partial capture
09-04 13:09 40m -22 / -1 OK3MB -16 / - 3 Partial capture
09-04 13:01 40m -21 / - ON4AGV - / - 5 Partial capture
09-04 12:59 40m -22 / - PD1AC - / - 3 ✓ Closing fragment
09-04 12:45 40m -23 / -16 SP7VCL -6 / -19 8 ✓ Full exchange observed
09-04 12:44 40m - / -6 SH7MEM -12 / - 2 ✓ Closing fragment
09-04 12:34 40m -22 / - F1LPT/P - / +1 3 ✓ Closing fragment
09-03 07:56 40m - / -4 DK5UR -2 / - 5 ✓ Closing fragment
09-03 07:43 40m - / -7 F1HFP -12 / - 2 ✓ Closing fragment
09-01 08:58 40m -21 / - G0MGK - / - 4 Partial capture
09-01 08:50 40m -20 / - M0LAD - / +6 2 ✓ Closing fragment
09-01 08:43 40m -22 / - G0RBB - / - 4 Partial capture
09-01 08:34 40m -22 / - OK1ACE - / - 2 Partial capture
09-01 08:32 40m -22 / - F4IBN - / -6 2 ✓ Closing fragment
09-01 08:27 40m -22 / - GU0SUP - / - 5 Partial capture
09-01 08:26 40m -20 / 0 DL3HN -14 / -13 4 ✓ Full exchange observed
09-01 08:18 40m -21 / - EA3ACQ - / -11 6 Partial capture
09-01 08:12 40m -20 / - SP9YGD - / - 7 Partial capture
09-01 08:10 40m -18 / - EG1PDA - / -18 4 ✓ Closing fragment
09-01 08:07 40m - / +2 F4GUK -13 / - 3 ✓ Closing fragment
09-01 08:05 40m - / -1 DM1CHL -4 / - 2 ✓ Closing fragment
09-01 08:04 40m -18 / - F1IQH - / - 2 Partial capture
09-01 07:59 40m -16 / - F4IEW - / -5 2 ✓ Closing fragment
09-01 07:57 40m -18 / - DF8RU +2 / - 4 ✓ Closing observed
09-01 07:53 40m -17 / - EA2FGV - / -13 8 ✓ Closing fragment
09-01 07:51 40m -14 / - G5GDX - / -4 3 ✓ Closing fragment
09-01 07:48 40m -16 / - G7WAQ - / -7 2 ✓ Closing fragment
09-01 07:16 40m -21 / - IZ1CRA - / - 4 Partial capture
09-01 06:59 40m -15 / - EG1PPE - / - 9 Partial capture
08-31 19:37 40m - / +2 PG4T +9 / - 2 ✓ Closing fragment
08-31 19:31 40m - / -1 PA2HD +8 / - 5 Partial capture
08-31 19:26 40m -10 / - ON4IQ - / - 5 Partial capture
08-31 19:24 40m - / +5 M0WBK -12 / - 2 Partial capture
08-31 19:11 40m -7 / - G0WTZ - / - 9 Partial capture
08-31 18:52 20m -10 / - DL7HS - / - 3 Partial capture
08-31 18:49 20m -8 / - OY5T - / - 6 Partial capture
08-31 18:33 20m -4 / - OY5T - / - 6 Partial capture
08-31 18:14 40m -6 / - M9SIX - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
194100 -13 2198  PD1ADA DL2DBI RR73
194715  -1 1996  G0WTZ PD1ADA JO21
200130  -7 1997  G6LTT PD1ADA JO21 (x9)
065715 -15 1997  MI0TMW PD1ADA JO21 (x2)
065900 -11 2489  PD1ADA SN40KZE +04
071000  -6 2711  PD1ADA F4FQY RR73
20m
UTC    dB Audio  Message
183330  -4 2035  OY5T PD1ADA JO21 (x11)
185230 -11 2034  DL7HS PD1ADA JO21 (x3)
190130  -8 2034  WB3CTP PD1ADA R-12
10m
UTC    dB Audio  Message
121545 -23 2049  HA3HZ PD1ADA JO21 (x5)
085830  -7  568  PD1ADA SV2CLJ +00 (x3)
200430 -23 2050  PP5GER PD1ADA JO21
090530 -15 2052  <...> PD1ADA JO21 (x3)
090815 -20 2052  UX6FZZ PD1ADA JO21 (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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