PA3NJ — 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: JO21

Receiver-side FT8 activity involving PA3NJ, decoded by SO8OO in southeastern Poland. 45 FT8 messages attributed to this token as transmitter, on 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-08-16.

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 45 FT8 messages attributed to PA3NJ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (60%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (82%); the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

20m · 45

First attributed message: 2026-07-13
Last attributed message: 2026-08-16 15:50 UTC

Observed FT8 message patterns

Attributed sample: 45 messages
Active dates: 6 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -14 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 8.

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 PA3NJ in decoded directed-looking exchanges:

RU3QR · European Russia ×2 DH5BM · Fed. Rep. of Germany DK3TNA · Fed. Rep. of Germany DL1BBO · Fed. Rep. of Germany DL3RAJ · Fed. Rep. of Germany DL7RAY · Fed. Rep. of Germany IK4LZH · Italy IU2WHH · Italy R6LQU · European Russia UT7UJ · Ukraine

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 PA3NJ

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: JO21 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-08-16 15:50 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	PA3NJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-16 09:59	20m	-10 / -19	RU3QR	-14 / -	3	✓ Closing observed
08-16 09:36	20m	- / +1	UT7UJ	+12 / -	2	✓ Closing fragment
08-16 09:32	20m	- / -17	R6LQU	-11 / -	2	✓ Closing fragment
08-16 09:31	20m	- / -11	IK4LZH	+7 / -	3	✓ Closing fragment
08-16 09:22	20m	- / -	DG1RMY	-11 / -	2	Partial capture
08-16 09:21	20m	- / -16	DK3TNA	-11 / -	7	✓ Closing fragment
08-16 08:57	20m	- / -	DL3RAJ	-10 / -	2	✓ Closing fragment
08-12 21:14	20m	-10 / -	IK2TPX	- / +2	5	Partial capture
08-12 21:11	20m	-11 / -16	DL7RAY	-13 / -	5	✓ Closing observed
08-12 21:11	20m	-12 / -	DL1BBO	-15 / -4	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
093145  +9  462  PA3NJ IK4LZH R-11
093215 -11  326  PA3NJ R6LQU R-17
093215  +7  462  PA3NJ IK4LZH 73
093245 -11  327  PA3NJ R6LQU 73
093615 +11  327  PA3NJ UT7UJ +01 (x2)
094330 -12  326  DG1RMY PA3NJ RRR
095800 -13  373  F4HTV PA3NJ +02
095915 -15 1420  PA3NJ RU3QR -19 (x2)
100000 -10  372  RU3QR PA3NJ 73
100130  -8  378  CQ PA3NJ JO21 (x2)
154745  -5  378  <...> PA3NJ JO21 (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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