PF0JB — 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: JO22

Receiver-side FT8 activity involving PF0JB, decoded by SO8OO in southeastern Poland. 63 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-02.

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 63 FT8 messages attributed to PF0JB as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (62%), followed by 80 m (29%) and 20 m (6%). Several six-hour UTC windows tied for the largest share (94%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 18 40m · 39 20m · 4 10m · 2

First attributed message: 2026-06-08
Last attributed message: 2026-11-02 15:09 UTC

Observed FT8 message patterns

Attributed sample: 63 messages
Active dates: 19 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -14 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 31.

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 PF0JB in decoded directed-looking exchanges:

PI4DX · Netherlands EA5OL · Spain LY3PW · Lithuania OH5KNL · Finland OM7AMA · Slovak Republic SV3AUW · Greece SV9QWC · Crete UR3HC · Ukraine UR5SG · Ukraine UT3USX · Ukraine 9A4ZM · Croatia DO5HOK · Fed. Rep. of Germany

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 PF0JB

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: 2026-11-02 15:09 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	PF0JB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 21:27	80m	- / -15	M0BEW	-8 / -	2	✓ Closing fragment
11-02 15:09	40m	-12 / -	UT4WY	- / -	2	Partial capture
11-02 14:14	40m	-16 / -3	LY3PW	-5 / -7	4	✓ Full exchange observed
10-31 22:47	40m	- / -24	F4HBV	+17 / -	3	Partial capture
10-31 21:14	80m	-9 / -5	G0HSP	-12 / -2	3	✓ Full exchange observed
10-31 21:08	80m	-5 / -	DO5HOK	-1 / -10	5	✓ Closing observed
10-31 19:50	40m	- / -12	SV3AUW	-6 / -	5	✓ Closing fragment
10-28 21:22	80m	- / -18	9A4ZM	+5 / -	2	✓ Closing fragment
10-28 21:21	80m	-15 / -7	SP6FME	+11 / -12	6	✓ Full exchange observed
10-28 21:20	80m	-12 / -	G7RHF	- / -6	2	✓ Closing fragment
10-28 21:10	80m	- / -14	OM2ZZ	0 / -	4	Partial capture
10-16 19:17	40m	-11 / -14	UR3HC	-2 / -5	5	✓ Full exchange observed
10-04 12:55	40m	- / -	DG1RMY	-14 / -	2	Partial capture
10-02 19:57	40m	-6 / -	F5PBG	-1 / +6	4	Partial capture
10-02 19:55	40m	-1 / -	UR5SG	- / -2	3	✓ Closing fragment
09-29 19:58	80m	-6 / 0	G4DBW	+3 / -	4	✓ Full exchange observed
09-29 18:48	40m	-9 / -15	UR4QWW	-14 / -8	3	Partial capture
09-28 22:38	40m	-9 / -18	SV9QWC	-15 / -3	5	✓ Full exchange observed
09-28 22:12	40m	-2 / -	IK4TVP	- / +7	2	Partial capture
09-28 22:05	40m	-4 / -	OM7AMA	- / +3	2	✓ Closing fragment
09-28 20:44	40m	-10 / -	US5WE	- / -	2	Partial capture
09-28 20:35	40m	-10 / -	UR4FY	- / -	2	Partial capture
09-28 20:20	40m	- / -18	SV2ROG	-12 / -	6	Partial capture
09-18 19:56	40m	-5 / +1	OH5KNL	+4 / +9	3	✓ Full exchange observed
09-18 19:48	40m	-7 / -6	II9IAGM	-8 / -	3	Partial capture
09-18 19:34	40m	- / -	PE1NPS	-4 / -	2	Partial capture
09-18 19:32	40m	0 / -12	EA5OL	-5 / -2	7	✓ Full exchange observed
09-12 21:09	40m	-7 / -	UT3USX	- / -8	2	✓ Closing fragment
09-09 19:32	160m	- / -13	PI4DX	+2 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
212430 +13 1259  PF0JB SP6FME 73
210800 -10 1304  DO5HOK PF0JB JO22 (x3)
210915  -1  809  PF0JB DO5HOK RR73
210930  -2 1304  DO5HOK PF0JB 73
211415 -12  201  PF0JB G0HSP -05
211430  -5 1304  G0HSP PF0JB R-02 (x2)
211600 -13 1304  UT2PC PF0JB JO22
211930  +3  754  PF0JB 9A60CBM -16
211945  -7 1304  R1BLO/P PF0JB R-13
212230  +4 1009  PF0JB F4CTJ +08
212700  -8  401  PF0JB M0BEW -15 (x2)

40m

UTC    dB Audio  Message
191830 -10  964  UR3HC PF0JB 73
195030  -4 1949  PF0JB SV3AUW -12 (x5)
224700 +20  516  PF0JB F4HBV -24 (x3)
141430  -3 1214  PF0JB LY3PW -03
141445 -18 1341  LY3PW PF0JB R-07
141500  -7 1214  PF0JB LY3PW RRR
141515 -14 1341  LY3PW PF0JB 73
150915 -10 1341  UT4WY PF0JB JO22 (x2)

160m

UTC    dB Audio  Message
193245  -1 1077  PF0JB PI4DX -13 (x2)

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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