IW4CSQ — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving IW4CSQ, decoded by SO8OO in southeastern Poland. 97 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-29.

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 97 FT8 messages attributed to IW4CSQ as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (82%), followed by 20 m (12%) and 40 m (5%). Most decodes (84%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

40m · 5 20m · 12 10m · 80

First attributed message: 2026-06-06
Last attributed message: 2026-08-29 19:02 UTC

Observed FT8 message patterns

Attributed sample: 97 messages
Active dates: 8 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 34.

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 IW4CSQ in decoded directed-looking exchanges:

HG5OGI · Hungary ×2 HA2KF · Hungary IU4PPL · Italy BI4JJO · China F4AWT · France G0OSK · England ON1JP · Belgium PD3JMK · Netherlands PD3LKN · Netherlands RK3AF · European Russia RU3QR · European Russia UA6YW · European Russia

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 IW4CSQ

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 · 58 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-08-29 19:01 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	IW4CSQ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 19:48	20m	- / -16	UA6YW	-10 / -	3	✓ Closing fragment
08-28 19:31	20m	- / -3	F5PBG	-14 / -	2	Partial capture
08-28 19:28	20m	- / -12	G1LQT	0 / -	2	Partial capture
08-28 19:13	20m	- / -24	ON1JP	-8 / -	2	Partial capture
08-28 19:10	20m	- / -8	PD3JMK	-2 / -	6	✓ Closing fragment
08-25 11:27	20m	- / -15	TA3F	-14 / -	2	Partial capture
08-01 15:51	10m	-15 / -	A71XX	- / -	3	Partial capture
08-01 15:46	10m	-14 / -	PY2GM	- / -	7	Partial capture
08-01 15:41	10m	-14 / -	HA2KF	- / +1	3	✓ Closing fragment
08-01 15:36	10m	-16 / -	IU4PPL	-16 / -	2	✓ Closing observed
08-01 15:32	10m	-14 / -	OK8CZ	- / -	2	Partial capture
08-01 15:32	10m	-15 / -	HG5OGI	- / +1	3	✓ Closing fragment
08-01 15:29	10m	- / -	IU4PPL	-15 / -	2	Partial capture
08-01 15:28	10m	-18 / -	HG5OGI	- / +1	2	✓ Closing fragment
08-01 13:40	20m	- / -8	LZ1BT	-21 / -	7	Partial capture
08-01 13:08	20m	-15 / -	RU3QR	- / -15	3	✓ Closing fragment
08-01 12:57	20m	- / -2	F4AWT	-12 / -	2	✓ Closing fragment
08-01 12:53	20m	- / +4	G0OSK	-16 / -	3	✓ Closing fragment
08-01 12:52	20m	- / -12	PD3LKN	-22 / -	2	✓ Closing fragment
08-01 12:51	20m	- / -21	PD0HLA	-16 / -	2	Partial capture
07-03 19:18	10m	-14 / -	PY8ZB	- / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
191345  -8 1096  IW4CSQ ON1JP -24
192600 -18 1360  ON1JP IW4CSQ 73
192815  -2 1304  IW4CSQ G1LQT -12 (x2)
193115 -22 1364  IW4CSQ BI4JJO 73
193145 -15 1366  IW4CSQ F5PBG IN78 (x2)
190100 -20 1654  CQ IW4CSQ JN54 (x2)
190200 -24 1653  V51PJ IW4CSQ -20
190715 -17 2324  IW4CSQ RK3AF -06 (x2)
194800  -8 1629  IW4CSQ UA6YW LN04 (x3)

10m

UTC    dB Audio  Message
154145 -14 1543  HA2KF IW4CSQ JN54 (x3)
154600  -9 1542  PY2GM IW4CSQ JN54 (x7)
154930 -12 1546  HA7XL IW4CSQ +02
155100 -10 1549  A71XX IW4CSQ JN54 (x4)

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.

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