PB7J — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Netherlands Most frequent locator attributed to this token: JO20

Receiver-side FT8 activity involving PB7J, decoded by SO8OO in southeastern Poland. 71 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-19.

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 71 FT8 messages attributed to PB7J as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 20 m (37%) and 60 m (6%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (61%); the estimated median was -18 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

60m · 4 40m · 41 20m · 26

First attributed message: 2026-06-11
Last attributed message: 2026-10-19 19:46 UTC

Observed FT8 message patterns

Attributed sample: 71 messages
Active dates: 6 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -22 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 43, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 20.

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 PB7J in decoded directed-looking exchanges:

F6BHK · France HB9ELE · Switzerland R6FX · European Russia DH4PAP · Fed. Rep. of Germany DK5AN · Fed. Rep. of Germany IK2CMI · Italy PA7FB · Netherlands SP2EWQ · Poland SV1EKI · Greece

Most frequent locator attributed to PB7J

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: JO20 · 38 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,194 km (approx.)
Last such locator decoded: 2026-10-19 19:44 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 UTC	Band	PB7J S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-19 20:03	60m	- / -	DK2CI	-15 / -	4	Partial capture
10-19 19:58	60m	- / -19	DK5AN	-8 / -	5	✓ Closing fragment
10-19 19:54	60m	- / -14	DH4PAP	-14 / -	2	✓ Closing fragment
10-19 19:47	60m	- / -13	SV1EKI	-15 / -	5	✓ Closing fragment
10-19 19:45	60m	-18 / -	PA7FB	- / -5	2	✓ Closing fragment
10-19 19:44	60m	- / -14	SP2EWQ	-8 / -	3	✓ Closing fragment
10-13 19:13	40m	-5 / -	R6FX	-15 / -16	4	✓ Closing observed
10-13 19:10	40m	-5 / -19	HB9ELE	+14 / -16	10	✓ Full exchange observed
10-13 19:09	40m	-4 / -	UA9QFF	- / -	2	Partial capture
10-13 18:59	40m	-10 / -	M7XRH	- / -9	4	Partial capture
10-13 18:58	40m	-4 / +5	F6BHK	-12 / -9	4	✓ Full exchange observed
10-13 18:56	40m	-6 / -	M7XRH	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
194830 -15 1298  PB7J SV1EKI R-13 (x2)
194930 -16 2053  PB7J EG46PPA -25
195430 -13 1427  PB7J DH4PAP R-14 (x2)
195630 -18 1556  PB7J IK2CMI RR73
195830  -5 2158  PB7J DK5AN JO51 (x5)
200300 -21 1629  PB7J DK2CI JO50 (x4)

40m

UTC    dB Audio  Message
191100 +14  690  PB7J HB9ELE -19
191115  -6 1841  HB9ELE PB7J JO20
191130 +16  690  PB7J HB9ELE -19
191145  -6 1841  HB9ELE PB7J R-16
191200 +15  690  PB7J HB9ELE -19
191215  -3 1841  HB9ELE PB7J R-16 (x2)
191300 +12  690  PB7J HB9ELE RR73
191315  -5 1840  HB9ELE PB7J 73
191330 -13 1841  PB7J R6FX LN14
191345  -4 1841  R6FX PB7J -16 (x2)
191430 -17 1841  PB7J R6FX 73
191730  -4 1841  4L6EZ PB7J JO20
193245 -14 1575  UK8OM PB7J JO20

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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