ON3KHZ — 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 ON3KHZ, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-19.

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 11 FT8 messages attributed to ON3KHZ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 40 m (36%) and 20 m (18%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

80m · 4 40m · 4 20m · 2 10m · 1

First attributed message: 2026-06-08
Last attributed message: 2026-10-19 04:05 UTC

Observed FT8 message patterns

Attributed sample: 11 messages
Active dates: 5 UTC dates
Estimated median S/N: -17 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with ON3KHZ in decoded directed-looking exchanges:

DJ0MAB · Fed. Rep. of Germany DK1HSI · Fed. Rep. of Germany EC3A · Spain

Most frequent locator attributed to ON3KHZ

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 · 10 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,194 km (approx.)
Last such locator decoded: 2026-10-19 04:05 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	ON3KHZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 14:34	40m	- / -7	DK1HSI	-12 / -	7	✓ Closing fragment
10-21 14:14	40m	- / -	PC2J	-15 / -	5	Partial capture
10-21 12:21	40m	- / -	DL6EL	+2 / -	3	Partial capture
10-21 12:10	40m	- / -	PA0WCH	-12 / -	6	Partial capture
10-19 10:39	40m	- / -10	OK1MDK	-3 / -	7	Partial capture
10-19 08:53	40m	- / -11	DJ0MAB	-14 / -	2	✓ Closing fragment
10-19 08:26	40m	- / -	F8MRQ	-18 / -	2	Partial capture
10-19 04:04	40m	-18 / -	EB3DBR	- / -	2	Partial capture
10-19 04:03	40m	-13 / -12	EC3A	-8 / -5	4	✓ Full exchange observed
10-17 22:44	80m	- / -	DL1UDO	-5 / -	3	Partial capture
10-17 22:44	80m	- / -	F5MXH	-10 / -	2	Partial capture
10-17 22:44	80m	- / -16	F1PBZ	-6 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
122145  +1  790  ON3KHZ DL6EL JN57 (x2)
122545 -22 1895  ON3KHZ PD1AC JO22
141415 -15 1777  ON3KHZ PC2J JO22 (x5)
143445 -12 1059  ON3KHZ DK1HSI -07 (x7)

80m

UTC    dB Audio  Message
224415  -5  455  ON3KHZ F1PBZ -16
224445 -12 1723  ON3KHZ F5MXH JN07
224445  -8  455  ON3KHZ F1PBZ -16
224445  -3 1500  ON3KHZ DL1UDO JO31
224515  -9 1723  ON3KHZ F5MXH JN07
224515  -4  455  ON3KHZ F1PBZ -16
224515  -8 1500  ON3KHZ DL1UDO JO31
224545  -6  455  ON3KHZ F1PBZ -16
224545  -5 1500  ON3KHZ DL1UDO JO31

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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