ON7CL — 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: Belgium Most frequent locator attributed to this token: JO20

Receiver-side FT8 activity involving ON7CL, decoded by SO8OO in southeastern Poland. 145 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-10-29.

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 145 FT8 messages attributed to ON7CL as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (61%), followed by 80 m (21%) and 40 m (12%). Most decodes (59%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

145

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 30 40m · 17 20m · 88 10m · 10

First attributed message: 2026-06-19
Last attributed message: 2026-10-29 14:19 UTC

Observed FT8 message patterns

Attributed sample: 145 messages
Active dates: 16 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -22 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 53, moderate (-15 to -9 dB) 60, strong (≥ -8 dB) 32.

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 ON7CL in decoded directed-looking exchanges:

ON3ANY · Belgium ON7VZ · Belgium ON8LX · Belgium OS7P · Belgium OT4R · Belgium ON6CQ · Belgium

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 ON7CL

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: JO20 · 112 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,194 km (approx.)
Last such locator decoded: 2026-10-29 14:19 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	ON7CL S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-28 17:25	80m	-18 / -	ON4CFC	- / -	2	Partial capture
10-28 08:08	40m	-12 / +2	OT4R	-16 / -8	4	✓ Full exchange observed
10-28 08:06	40m	-18 / -6	ON8LX	-12 / -8	5	✓ Full exchange observed
10-27 07:30	40m	- / -	YO3GNF	+3 / -	2	Partial capture
10-27 07:25	40m	-9 / -12	ON3ANY	-8 / -16	8	✓ Full exchange observed
10-24 17:37	80m	- / -	DK1MCS	-2 / -	2	Partial capture
10-24 17:15	80m	-10 / -	ON6CQ	- / -	2	Partial capture
10-24 16:10	80m	-16 / -	ON6CQ	- / -	4	Partial capture
10-24 16:05	80m	-10 / -	ON6CQ	- / -	5	Partial capture
10-14 18:32	40m	-1 / -15	ON7VZ	+4 / -	3	✓ Closing observed
10-13 06:48	80m	- / -	DO3VE	-1 / -	12	Partial capture
10-13 06:48	80m	-2 / -	ON6CQ	- / -	5	Partial capture
10-13 06:40	80m	-9 / -	ON6CQ	- / -	7	Partial capture
10-13 06:34	80m	-10 / -	ON6CQ	- / -	2	Partial capture
10-12 14:38	40m	-11 / -	OS7P	-14 / -4	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
072815  -9  941  ON3ANY ON7CL R-16
072830  -4  939  ON7CL ON3ANY RR73 (x2)
073000  +3 2828  ON7CL YO3GNF KN34 (x2)
080630 -19 2063  ON8LX ON7CL JO20
080645 -12 2063  ON7CL ON8LX -06
080700 -21 2063  ON8LX ON7CL R-08
080715 -13 2063  ON7CL ON8LX RR73
080730 -13 2063  ON8LX ON7CL 73
080815 -17 1492  ON7CL OT4R +02 (x2)
080900 -12 2063  OT4R ON7CL R-08
080915 -16 1492  ON7CL OT4R RR73
141945  -8  971  ON7AMI ON7CL JO20

80m

UTC    dB Audio  Message
160700  -8 1478  ON6CQ ON7CL JO20 (x6)
171400 -18 1479  CQ ON7CL JO20
171445  -1 1268  ON7CL DG3TF JO53
171500 -14 1479  ON6CQ ON7CL JO20 (x3)
173715  -1 1478  ON7CL DK1MCS JN57 (x2)
172545 -17 1478  ON4CFC ON7CL JO20 (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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee