PB1JB — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving PB1JB, decoded by SO8OO in southeastern Poland. 393 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-07-09 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 393 FT8 messages attributed to PB1JB as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (96%), followed by 40 m (4%). Most decodes (59%) fell within the six-hour window 08:00-14:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

393
Messages attributed
22
UTC dates decoded
89
Active 15-min windows
-13 dB
Estimated median S/N

Bands

40m · 17 20m · 376
First attributed message: 2026-07-09
Last attributed message: 2026-08-15 08:04 UTC

Observed FT8 message patterns

Attributed sample
393 messages
Active dates
22 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-19 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 126, moderate (-15 to -9 dB) 154, strong (≥ -8 dB) 113.

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 PB1JB 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 PB1JB

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 · 266 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,201 km (approx.)
Last such locator decoded
2026-08-15 08:04 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 UTCBandPB1JB S/NCounterpartCounterpart S/NMsgsCapture
08-15 08:01 20m - / - RZ4FWA -20 / - 3 Partial capture
08-02 18:16 40m - / -18 TM84TFR -4 / - 10 Partial capture
08-02 14:03 20m - / -15 SV9/PD9VOG -8 / - 2 Partial capture
08-02 08:59 20m -1 / - UT7UJ -4 / +2 3 ✓ Closing observed
08-02 08:57 20m 0 / - DC2SF - / +3 2 ✓ Closing fragment
08-01 11:48 20m -5 / - F4HSB - / -8 3 ✓ Closing fragment
08-01 11:42 20m -4 / - S54ZGA -5 / -7 3 ✓ Closing observed
08-01 11:40 20m -1 / - CT1BFP - / -20 3 ✓ Closing fragment
07-31 17:42 20m - / -12 F4IVG -6 / - 3 ✓ Closing fragment
07-31 10:17 20m -2 / - OH3MB - / -5 2 ✓ Closing fragment
07-31 10:09 20m -1 / -2 SA3KAK -14 / -2 5 Partial capture
07-31 10:08 20m - / -14 F1PBZ -8 / - 3 Partial capture
07-31 09:59 20m -2 / - IW5ALZ - / -14 2 Partial capture
07-31 09:51 20m 0 / - SV3TPT - / -14 6 ✓ Closing fragment
07-31 09:19 20m +4 / - V31DL - / -8 2 Partial capture
07-31 09:15 20m - / - PD3LKN +4 / - 9 Partial capture
07-30 12:09 20m - / -16 TA3TER -22 / - 2 ✓ Closing fragment
07-30 08:41 20m - / - DH2RL -7 / - 4 Partial capture
07-30 08:02 20m - / - DL1R -9 / - 8 Partial capture
07-30 07:51 20m -14 / -9 DL3RAJ -8 / -6 9 ✓ Full exchange observed
07-29 05:46 20m - / - TA4INO -13 / - 5 Partial capture
07-26 07:41 40m - / -5 3Z0L -17 / - 4 ✓ Closing fragment
07-26 07:38 40m - / -12 SQ9DDH -16 / - 3 ✓ Closing fragment
07-25 18:43 20m -17 / - F1IQH - / -7 2 Partial capture
07-25 07:01 40m - / -4 OK7TB -12 / - 4 ✓ Closing fragment
07-25 06:43 20m -18 / - Z62NS -14 / - 3 ✓ Closing observed
07-24 18:16 20m - / - F4MGP -12 / - 4 Partial capture
07-24 05:59 40m - / -8 SP1ZMO -21 / - 2 Partial capture
07-24 05:06 40m - / -14 IQ4JO -3 / - 3 Partial capture
07-23 18:09 20m - / -19 TN8GD -14 / - 2 ✓ Closing fragment
07-23 16:33 20m - / - EA7LIC -10 / - 2 Partial capture
07-23 12:51 20m -15 / -7 IZ2SXZ -20 / -1 5 Partial capture
07-23 06:08 40m - / -1 SN1A -21 / - 3 Partial capture
07-22 14:00 20m -18 / - 9A5JU - / -3 2 ✓ Closing fragment
07-22 13:47 20m -8 / -11 TK5K -8 / -6 3 Partial capture
07-22 13:42 20m -14 / - HG7KS - / -9 2 ✓ Closing fragment
07-22 13:38 20m - / -11 PD0HLA -12 / - 2 Partial capture
07-22 13:35 20m -14 / - F1PPH - / -20 2 Partial capture
07-22 13:32 20m -12 / - M8JJS - / -7 2 ✓ Closing fragment
07-22 13:31 20m -12 / - G8IXM - / -12 2 ✓ Closing fragment
07-22 11:43 20m -21 / - OH5KNL - / -13 2 Partial capture
07-22 07:53 20m -15 / -1 IU2WHH -10 / - 4 ✓ Closing observed
07-22 07:46 20m -15 / - HZ1TT - / - 2 Partial capture
07-22 06:28 40m - / -4 SM7JKW -7 / - 3 ✓ Closing fragment
07-21 19:07 20m -20 / - 7Z1BM - / -6 2 Partial capture
07-21 19:01 20m - / -1 DL9KM -12 / - 2 ✓ Closing fragment
07-21 18:57 20m -12 / - KN4WOJ - / -20 2 Partial capture
07-21 18:52 20m -12 / -5 DF2SL -13 / -14 5 ✓ Full exchange observed
07-21 18:51 20m -12 / - TA3F - / - 2 ✓ Closing fragment
07-20 18:09 20m -15 / -18 OZ/DG1ATN -17 / - 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
180815  -2  758  CQ PB1JB JO22 (x5)
075930 -21 1109  UT3SO PB1JB +02
080030 -20 1109  CQ PB1JB JO22
080115 -21 2064  PB1JB RZ4FWA LO23
080130 -18 1109  CQ PB1JB JO22 (x2)
080215 -20 2064  PB1JB RZ4FWA LO23 (x2)
080300 -19 1109  CQ PB1JB JO22 (x3)
40m 
UTC    dB Audio  Message
074315 -17 1608  PB1JB 3Z0L 73
183130  -8  457  PB1JB OK1DLA JN79
183400 -15 1234  PB1JB ON6SAT RR73
064430 -18 1254  PB1JB DK6WH -11
181600  +0  482  PB1JB TM84TFR -18 (x10)
073645 -23 2189  PB1JB HA3TBL JN86

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee