IZ5NFD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN54

Receiver-side FT8 activity involving IZ5NFD, decoded by SO8OO in southeastern Poland. 92 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-09-08.

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 92 FT8 messages attributed to IZ5NFD as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (54%), followed by 40 m (27%) and 20 m (18%). Several six-hour UTC windows tied for the largest share (48%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

60m · 50 40m · 25 20m · 17

First attributed message: 2026-08-29
Last attributed message: 2026-09-08 05:43 UTC

Observed FT8 message patterns

Attributed sample: 92 messages
Active dates: 7 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 47, 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 IZ5NFD in decoded directed-looking exchanges:

DK4RH · Fed. Rep. of Germany ×2 F1PPH · France 2E0TIV · England DK5HH · Fed. Rep. of Germany F1POK · France YO2OS · Romania DD6ZV · Fed. Rep. of Germany DJ2FR · Fed. Rep. of Germany DK2BK · Fed. Rep. of Germany F5RAV · France G0AZH · England G3SHK · England

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 IZ5NFD

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: JN54 · 51 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-09-08 05:37 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	IZ5NFD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 05:30	60m	- / -	G3SHK	-2 / -	2	✓ Closing fragment
09-05 05:11	40m	-10 / -	KE9END	- / -	2	Partial capture
09-05 04:51	40m	-4 / -	PV8AJ	- / -	7	Partial capture
09-05 04:44	40m	- / -10	DK5HH	-20 / -	3	✓ Closing fragment
09-05 04:32	60m	-10 / -	K3DFL	- / -16	7	✓ Closing fragment
09-03 21:30	40m	-8 / -	TN8GD	- / -21	3	Partial capture
09-03 05:45	60m	-10 / -	F5OZC	- / -	4	Partial capture
09-03 05:43	60m	-8 / -	OO0O	- / -	4	Partial capture
09-03 05:38	60m	-14 / -8	F5RAV	-18 / +1	5	✓ Full exchange observed
09-03 05:28	60m	-12 / -	W4CHA	- / -25	2	✓ Closing fragment
09-03 05:27	60m	-8 / -	LX1ER	- / -	2	Partial capture
09-02 19:33	60m	-11 / +3	OM5JG	+6 / +5	5	✓ Full exchange observed
09-02 19:33	60m	-16 / -11	TA7DX	-8 / -	4	✓ Closing observed
09-02 19:31	60m	-12 / -	IW3SGT	- / -4	2	✓ Closing fragment
09-02 19:30	60m	-11 / -7	DD6ZV	+4 / -7	5	✓ Full exchange observed
09-02 19:27	60m	-14 / +1	LB5WB	-2 / +1	5	✓ Full exchange observed
09-02 19:26	60m	-15 / -	DJ2FR	-21 / -5	3	✓ Closing observed
09-02 19:26	60m	-15 / -15	G0AZH	-16 / -	4	✓ Closing observed
09-02 19:23	60m	-12 / -5	OZ9FF	-2 / -7	5	✓ Full exchange observed
09-02 19:19	60m	-10 / -2	DK2BK	-6 / -	3	✓ Closing observed
09-02 19:17	60m	-12 / -16	GX1RAF	-8 / -4	5	✓ Full exchange observed
08-31 19:39	40m	-8 / -	F1POK	- / -8	3	✓ Closing fragment
08-31 19:28	40m	-16 / -	2E0TIV	-10 / -6	3	✓ Closing observed
08-31 19:27	40m	-20 / -	YO2OS	-13 / -	2	✓ Closing observed
08-30 11:08	20m	+11 / -	HA7TM	- / +3	4	Partial capture
08-30 11:06	20m	+11 / -	F1PPH	- / -9	2	✓ Closing fragment
08-30 10:59	20m	-13 / +2	DK4RH	-15 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
054600  -8 1027  F5OZC IZ5NFD JN54 (x3)
043200  -8 1526  K3DFL IZ5NFD JN54 (x7)
053000  -2  438  IZ5NFD G3SHK +12 (x2)
053600 -23 1357  PE1KWE IZ5NFD JN54
053745 -18 1357  W2TAD IZ5NFD JN54 (x2)

40m

UTC    dB Audio  Message
044415 -21 1142  IZ5NFD DK5HH JO43 (x3)
044715  -9 1642  IZ5NFD SV5BYP KM46
045000  -4 1142  CQ IZ5NFD JN54
045130  -3 1142  PV8AJ IZ5NFD JN54 (x7)
051115  -9 1138  KE9END IZ5NFD JN54 (x2)
051415 -10 1139  OA4ENG IZ5NFD JN54

20m

UTC    dB Audio  Message
105900 -17 2113  IZ5NFD DK4RH JO31 (x2)
105945 -13 2114  DK4RH IZ5NFD RR73
110000 -13 2113  IZ5NFD DK4RH 73
110515 +11 2114  CQ IZ5NFD JN54 (x2)
110615 +10 2114  F1PPH IZ5NFD -09 (x2)
110715 +13 2114  CQ IZ5NFD JN54 (x2)
110815 +14 2114  HA7TM IZ5NFD +03 (x4)
120045 -20 1363  RI1FJL IZ5NFD R-08

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