PD1SN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO22

Receiver-side FT8 activity involving PD1SN, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-28.

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 54 FT8 messages attributed to PD1SN as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (81%), followed by 10 m (17%) and 40 m (2%). Several six-hour UTC windows tied for the largest share (61%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (63%); the estimated median was -17 dB.

Overview

54
Messages attributed
12
UTC dates decoded
19
Active 15-min windows
-17 dB
Estimated median S/N

Bands

40m · 1 20m · 44 10m · 9
First attributed message: 2026-06-09
Last attributed message: 2026-08-28 12:31 UTC

Observed FT8 message patterns

Attributed sample
54 messages
Active dates
12 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-23 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 1.

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 PD1SN 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 PD1SN

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
JO22 · 23 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,201 km (approx.)
Last such locator decoded
2026-08-28 12:29 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 UTCBandPD1SN S/NCounterpartCounterpart S/NMsgsCapture
09-13 12:31 40m - / -10 YU4STE +8 / - 2 Partial capture
08-28 12:29 20m -8 / - JH8SIT - / -22 2 Partial capture
08-22 19:34 20m - / -22 GU4WRP +3 / - 3 Partial capture
08-20 06:00 20m -18 / - CN8NS - / -20 4 Partial capture
08-20 05:54 20m -22 / - CN8NS - / -19 3 Partial capture
07-27 21:07 20m -14 / - LU3DLY - / -12 2 Partial capture
07-27 21:03 20m -18 / - VK2USH - / -18 2 Partial capture
07-27 21:02 20m -15 / - VK2LAW - / -20 2 Partial capture
07-27 20:56 20m -22 / - EX8ABR - / - 3 Partial capture
07-26 20:10 20m -16 / - KP4AH - / -11 3 Partial capture
07-26 19:54 20m -20 / - DS5USH - / -20 2 Partial capture
07-26 19:41 20m -12 / - TN8GD - / -15 2 Partial capture
07-26 19:37 20m -14 / - NL8F - / -18 2 Partial capture
07-26 19:13 20m - / -15 JA0LFV -16 / - 3 ✓ Closing fragment
07-19 13:31 20m - / -7 EW1MN -10 / - 2 ✓ Closing fragment
07-17 20:47 20m - / -11 KF0YOB -6 / - 2 ✓ Closing fragment
07-17 20:33 20m - / +1 R2AL +1 / - 3 ✓ Closing fragment
07-15 21:59 40m - / - F4BYA +1 / - 2 Partial capture
07-14 21:36 40m - / -15 HB9HBY -4 / - 4 ✓ Closing fragment
07-14 06:14 20m - / - LZ3CB +2 / - 2 Partial capture
07-13 09:45 20m - / - LZ3CB -2 / - 3 Partial capture
07-11 08:55 20m - / - F4BYA -8 / - 2 Partial capture
07-11 08:12 20m - / - 9A4ZM +2 / - 3 Partial capture
07-08 12:12 20m - / -15 OK1ZJK -3 / - 3 ✓ Closing fragment
07-07 05:15 20m - / -16 T77BL +8 / - 2 ✓ Closing fragment
07-06 19:57 20m - / -10 OZ7DR -16 / - 4 ✓ Closing fragment
07-06 13:38 20m - / -22 YL3RK -16 / - 2 ✓ Closing fragment
07-06 13:04 20m - / -7 CT7AUT -14 / - 2 ✓ Closing fragment
07-05 13:42 20m - / -15 DL8RBL -17 / - 3 ✓ Closing fragment
07-05 11:01 20m - / -15 DG5DR -7 / - 3 ✓ Closing fragment
06-28 21:33 10m - / -21 CE2SV -2 / - 2 ✓ Closing fragment
06-28 21:15 10m - / -20 CA6SNT -18 / - 2 ✓ Closing fragment
06-28 06:03 20m - / -11 Z62NS -13 / - 2 ✓ Closing fragment
06-27 21:39 20m - / -5 Z62NS -6 / - 2 ✓ Closing fragment
06-24 21:06 20m - / -22 EA3HMM +8 / - 7 Partial capture
06-23 18:09 20m -13 / - JE1LFX - / -19 2 Partial capture
06-23 18:04 20m -10 / - BI8SCC - / -7 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
213630  -3  866  PD1SN HB9HBY R-15 (x4)
215930  +0 2982  PD1SN F4BYA JN19 (x2)
123130  +8  467  PD1SN YU4STE -10 (x2)
20m 
UTC    dB Audio  Message
051945 -22 1946  PD1SN XE1PM RR73
055445 -22 2213  CN8NS PD1SN -19 (x7)
114545 -20 1555  PD1SN M7YDM -06
193400  +7 1134  PD1SN GU4WRP R-22 (x3)
082200 -21 1556  YV5JLO PD1SN JO22
122930  -9 2770  JH8SIT PD1SN JO22 (x2)
10m 
UTC    dB Audio  Message
211545 -19 1283  PD1SN CA6SNT -20 (x2)
213315  -2 2560  PD1SN CE2SV R-21 (x2)
075130 -11  676  PD1SN TK4BB -09

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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