JF1NZW — 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: Japan Most frequent locator attributed to this token: QM06

Receiver-side FT8 activity involving JF1NZW, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-18 and 2026-10-27.

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 21 FT8 messages attributed to JF1NZW as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 80 m (29%) and 20 m (14%). 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 strong S/N range (62%); the estimated median was -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 6 40m · 12 20m · 3

First attributed message: 2026-07-18
Last attributed message: 2026-10-27 20:29 UTC

Observed FT8 message patterns

Attributed sample: 21 messages
Active dates: 4 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -23 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 13.

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 JF1NZW in decoded directed-looking exchanges:

IT9BCC · Sicily G0VXE · England IK1MNJ · Italy LB7ZG · Norway RG6ZF · European Russia 4O4A · Montenegro DJ7M · Fed. Rep. of Germany HB3YFC · Switzerland OE8DDX · Austria OE8TED · Austria OT7K · Belgium TF4M · Iceland

Most frequent locator attributed to JF1NZW

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: QM06 · 7 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,707 km (approx.)
Last such locator decoded: 2026-10-27 20:29 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	JF1NZW S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 21:23	80m	- / -17	OE8TED	+25 / -	2	✓ Closing fragment
11-03 21:15	80m	- / -21	OE8DDX	+26 / -	2	✓ Closing fragment
10-29 21:11	80m	- / -24	IT9VCE	+10 / -	3	Partial capture
10-29 20:22	80m	- / -25	HB3YFC	+4 / -	3	✓ Closing fragment
10-29 20:06	80m	- / -18	OT7K	+15 / -	2	✓ Closing fragment
10-28 19:25	80m	- / -	R4LQ	+4 / -	2	Partial capture
10-25 20:28	80m	- / -25	4O4A	+18 / -	2	✓ Closing fragment
10-13 20:36	80m	- / -9	TF4M	-12 / -	3	✓ Closing fragment
10-12 20:24	80m	- / -	TF4M	-8 / -	8	Partial capture
10-12 20:21	80m	-10 / -	LY1DY	- / -	4	Partial capture
09-27 21:31	40m	- / -13	IK1MNJ	+7 / -	5	✓ Closing fragment
09-27 20:58	80m	- / -18	DJ7M	+16 / -	2	✓ Closing fragment
08-23 20:01	40m	-6 / -	RG6ZF	- / -14	2	✓ Closing fragment
08-23 19:57	40m	-8 / -9	HB9AFZ	+2 / -12	4	Partial capture
08-23 19:57	40m	-6 / -21	LB7ZG	+6 / -12	7	✓ Full exchange observed
08-23 19:56	40m	-6 / -14	G0VXE	+6 / -16	8	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
202900 -24  314  LX2A JF1NZW QM06
192500  +2 1568  JF1NZW R4LQ LO43 (x2)
200600 +19  606  JF1NZW OT7K -18 (x2)
202215  +3 1963  JF1NZW HB3YFC -25 (x3)
211115  +7 2852  JF1NZW IT9VCE -24 (x3)
211530 +26 2701  JF1NZW OE8DDX -21 (x2)
212300 +27 2832  JF1NZW OE8TED -17 (x2)

40m

UTC    dB Audio  Message
195815  +5 3000  JF1NZW LB7ZG JP50
195830  -6 2699  LB7ZG JF1NZW -11
195845  +4 3000  JF1NZW LB7ZG R-21
195900  -7 2698  LB7ZG JF1NZW RR73
195915  +8 3000  JF1NZW LB7ZG 73
195930 -10 2699  HB9AFZ JF1NZW R-12 (x3)
200100  -7 2699  RG6ZF JF1NZW -14 (x2)
213100  -2 2542  JF1NZW IK1MNJ JN35 (x5)

20m

UTC    dB Audio  Message
211115 -20 2179  JF1NZW IT9BCC RR73

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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