IW9CHW — 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: Sicily Most frequent locator attributed to this token: JM77

Receiver-side FT8 activity involving IW9CHW, decoded by SO8OO in southeastern Poland. 43 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 7 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 43 FT8 messages attributed to IW9CHW as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 20 m (35%) and 10 m (14%). Most decodes (88%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

40m · 22 20m · 15 10m · 6

First attributed message: 2026-06-08
Last attributed message: 2026-11-02 17:59 UTC

Observed FT8 message patterns

Attributed sample: 43 messages
Active dates: 7 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -18 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 23.

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 IW9CHW in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany

Most frequent locator attributed to IW9CHW

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: JM77 · 21 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,485 km (approx.)
Last such locator decoded: 2026-11-02 17:59 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	IW9CHW S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 17:59	40m	- / -	I1YTO	+6 / -	2	Partial capture
10-29 17:31	40m	-18 / -	EX7CQ	- / -	2	Partial capture
10-29 17:27	40m	-24 / -	EX7CQ	- / -	2	Partial capture
09-14 19:43	40m	-10 / -	TN8GD	- / -	3	Partial capture
09-14 19:42	40m	- / -	SV1EKI	-8 / -	5	Partial capture
09-14 19:30	40m	- / -4	DL9KM	0 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
194245  -6 2549  IW9CHW SV1EKI KM18
194300 -10 1208  TN8GD IW9CHW JM77
194315 -11 2549  IW9CHW SV1EKI KM18
194330  -9 1208  TN8GD IW9CHW JM77
194345  -4 2548  IW9CHW SV1EKI KM18
194400 -11 1209  TN8GD IW9CHW JM77
194415  -7 2549  IW9CHW SV1EKI KM18 (x2)
172715 -24 1896  EX7CQ IW9CHW JM77 (x4)
175915 -24 1798  9X5KM IW9CHW JM77
175930 +10 2993  IW9CHW I1YTO JN44 (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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