PD9JHB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO33

Receiver-side FT8 activity involving PD9JHB, decoded by SO8OO in southeastern Poland. 72 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-08-15.

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 72 FT8 messages attributed to PD9JHB as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (64%), followed by 40 m (36%). Several six-hour UTC windows tied for the largest share (53%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

72
Messages attributed
11
UTC dates decoded
23
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 26 20m · 46
First attributed message: 2026-06-19
Last attributed message: 2026-08-15 19:49 UTC

Observed FT8 message patterns

Attributed sample
72 messages
Active dates
11 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-19 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 36, strong (≥ -8 dB) 22.

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 PD9JHB 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 PD9JHB

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
JO33 · 39 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,091 km (approx.)
Last such locator decoded
2026-08-15 19:48 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 UTCBandPD9JHB S/NCounterpartCounterpart S/NMsgsCapture
08-23 18:27 20m - / - F1PPH -1 / - 2 Partial capture
08-23 18:22 20m - / - SV5BYP -4 / - 3 Partial capture
08-15 19:48 40m -11 / - PD2RAL - / -13 2 ✓ Closing fragment
08-15 19:48 40m - / - DK2SW -14 / - 3 Partial capture
08-15 18:27 40m -12 / - DK0ACI - / -2 2 ✓ Closing fragment
08-15 18:26 40m -10 / - PA7D - / +1 2 ✓ Closing fragment
08-15 18:25 40m -14 / -4 SQ7LM -14 / - 3 ✓ Closing observed
08-15 18:22 40m -8 / - VJ6X - / -18 3 Partial capture
08-15 18:20 40m -8 / - DL9MY - / -12 2 ✓ Closing fragment
08-09 14:21 20m -18 / - YB5SD - / - 2 ✓ Closing fragment
08-09 13:58 20m - / - CT1BFP -15 / - 10 Partial capture
08-09 13:56 20m - / - OM1AMT -5 / - 4 Partial capture
08-02 05:45 20m - / - UA3ZQN +12 / - 3 Partial capture
08-02 05:07 40m -10 / - YY4GPM - / - 2 Partial capture
08-02 04:46 40m - / +7 OK2QP +2 / - 3 ✓ Closing fragment
08-02 04:45 40m - / - DF8RU -7 / - 3 Partial capture
08-02 04:34 40m - / - F5RRS -17 / - 3 Partial capture
08-01 20:00 20m +3 / - 7X2KF - / -9 3 ✓ Closing fragment
08-01 19:55 20m +4 / - JF2RYX - / -14 2 ✓ Closing fragment
08-01 19:54 20m +7 / - PD1HPB +1 / -15 17 Partial capture
08-01 19:53 20m +1 / - RA1WZ - / -12 2 ✓ Closing fragment
07-26 13:41 20m - / - RA6OY +3 / - 4 Partial capture
07-26 13:37 20m -10 / - RD9FC - / -13 3 ✓ Closing fragment
07-26 13:28 20m -11 / - R5VCH - / -19 3 ✓ Closing fragment
07-26 06:02 20m - / - RL6MT -8 / - 3 Partial capture
07-19 08:07 20m - / - OK1WCF -4 / - 2 Partial capture
07-19 08:01 20m - / -15 RU3QR -17 / - 6 Partial capture
07-12 06:54 20m - / - OD5KU -2 / - 6 Partial capture
07-06 08:38 20m - / - F5RRS -7 / - 3 Partial capture
07-04 07:38 20m - / -19 IN3NHZ -16 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
140215 -19 1426  PD9JHB CT1BFP IM59 (x5)
142100 -16 1016  YB5SD PD9JHB JO33 (x2)
144400 -20 1016  CQ PD9JHB JO33
144545  -9  462  PD9JHB IK4LZH R-04
171430 -17 1981  PD9JHB IQ4JO JN63
182200  +1 2020  PD9JHB SV5BYP KM46 (x3)
182700  +1 1020  PD9JHB F1PPH JN07 (x2)
40m 
UTC    dB Audio  Message
182530 -14  979  SQ7LM PD9JHB RR73
182545 -15  979  PD9JHB SQ7LM 73
182600 -13  980  CQ PD9JHB JO33
182630 -11  980  PA7D PD9JHB +01 (x2)
182730 -10  980  DK0ACI PD9JHB R-02 (x2)
183315 -16 1979  BA4IE PD9JHB JO33
194745 -10  979  CQ PD9JHB JO33                        a1 (x2)
194830 -18 2160  PD9JHB DK2SW JO43
194845  -9  979  PD2RAL PD9JHB R-13
194900 -14 2160  PD9JHB DK2SW JO43
194915 -13  979  PD2RAL PD9JHB 73
194930 -10 2160  PD9JHB DK2SW JO43

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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