ON4UR — 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: JO11

Receiver-side FT8 activity involving ON4UR, decoded by SO8OO in southeastern Poland. 181 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 181 FT8 messages attributed to ON4UR as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 20 m (30%) and 10 m (14%). Several six-hour UTC windows tied for the largest share (94%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

181

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 102 20m · 54 10m · 25

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 14:57 UTC

Observed FT8 message patterns

Attributed sample: 181 messages
Active dates: 30 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -17 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 104, 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 ON4UR in decoded directed-looking exchanges:

HB9ELE · Switzerland ×3 M9VVE · England ×2 DJ0MAB · Fed. Rep. of Germany ×2 DK1XAM · Fed. Rep. of Germany ×2 G6PWS · England ×2 EA2EED · Spain F4LQJ · France GJ0KYZ · Jersey MI0JZZ · Northern Ireland OE8PIT · Austria OH3OJ · Finland R70OBN · 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 ON4UR

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: JO11 · 104 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,331 km (approx.)
Last such locator decoded: 2026-10-22 14:57 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	ON4UR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 14:44	40m	- / -15	EU6UE	-9 / -	3	Partial capture
10-22 14:24	40m	- / -	F4GUK	-18 / -	3	Partial capture
10-22 14:21	40m	- / -	OZ1SMB	-17 / -	2	Partial capture
10-22 14:12	40m	- / +10	DG0MAN	+8 / -	4	✓ Closing fragment
10-22 14:08	40m	- / -	G8KHF	-7 / -	2	✓ Closing fragment
10-21 07:58	40m	- / 0	HB9EFK	+1 / -	2	✓ Closing fragment
10-20 13:47	40m	- / -1	G6PWS	-16 / -	2	✓ Closing fragment
10-20 13:45	40m	-16 / -	ON3ONX	- / -	2	✓ Closing fragment
10-18 14:53	40m	-10 / -11	3Z0L	-2 / -14	4	✓ Full exchange observed
10-18 14:50	40m	-7 / -2	SP2SGZ	-2 / -21	5	✓ Full exchange observed
10-18 14:46	40m	-12 / -	PA5MB/QRP	- / +6	2	Partial capture
10-18 14:41	40m	- / -	S51PV	-11 / -	7	Partial capture
10-18 14:38	40m	-12 / -	UA4FKT	0 / 0	6	Partial capture
10-18 14:32	40m	-7 / +8	ON4KVK	-4 / +5	3	Partial capture
10-18 14:26	40m	-10 / -	IK8TWV	-14 / -10	4	✓ Closing observed
10-18 14:20	40m	-8 / +3	DK1XAM	-11 / -9	5	✓ Full exchange observed
10-18 14:18	40m	-10 / -	G3RLX	- / -4	3	✓ Closing fragment
10-18 13:17	40m	- / -	DL9KM	-4 / -	7	Partial capture
10-18 13:11	40m	- / -8	IZ5MMT	-6 / -	2	✓ Closing fragment
10-17 14:08	40m	- / +9	IU4PPL	-11 / -	2	Partial capture
10-16 15:40	40m	-5 / -	M0SCK	- / -3	2	✓ Closing fragment
10-16 15:38	40m	- / +2	F4GVO	+1 / -	2	✓ Closing fragment
10-16 15:36	40m	-14 / -13	RM1B	-4 / -2	2	Partial capture
10-16 09:18	40m	- / -4	DM5CF	-5 / -	3	✓ Closing fragment
10-16 08:29	40m	- / -5	ON3ANY	-10 / -	2	✓ Closing fragment
10-13 15:52	40m	-9 / -8	DF0KK	+1 / -	3	✓ Closing observed
10-13 15:51	40m	-13 / -	G6PWS	- / -23	2	✓ Closing fragment
10-13 14:01	40m	- / +4	HB9ELE	+8 / -	2	✓ Closing fragment
10-10 15:44	40m	- / -2	DK1HSI	+2 / -	2	Partial capture
10-10 15:24	40m	- / -11	OE3FVU	-5 / -	3	Partial capture
10-07 08:12	40m	- / -13	ON1DGN	-19 / -	4	Partial capture
10-07 07:31	40m	- / -7	IN3IBW	+2 / -	2	✓ Closing fragment
10-07 07:29	40m	-11 / +3	DJ1OJ	+5 / -9	2	Partial capture
10-04 15:49	40m	-14 / -	SP8RPA	+8 / -2	3	✓ Closing observed
10-04 15:27	40m	-8 / -13	R8CW	-11 / -9	5	✓ Full exchange observed
10-04 15:23	40m	-13 / -	G3VCQ	- / +6	2	Partial capture
10-04 15:22	40m	-15 / -6	PD0DEX	+4 / -	4	✓ Closing observed
10-04 15:19	40m	-14 / +5	M7RFR	-10 / -2	3	✓ Full exchange observed
10-04 15:17	40m	-13 / -16	OE2CAL	+15 / +1	4	✓ Full exchange observed
10-04 15:13	40m	- / -1	DL4DBM	+2 / -	2	✓ Closing fragment
10-03 15:08	40m	- / +1	HB9ELE	+6 / -	2	✓ Closing fragment
10-03 15:06	40m	-8 / -	DO7UFN	-11 / -6	2	✓ Closing observed
10-03 15:02	40m	-10 / -9	IN3WZS	+6 / -	3	✓ Closing observed
10-02 14:13	40m	- / -3	HB9ELE	+4 / -	2	✓ Closing fragment
10-02 14:04	40m	- / -	OH3CD	-21 / -	2	Partial capture
10-02 13:52	40m	- / -	DL9KM	-6 / -	7	Partial capture
10-02 13:52	40m	- / -4	S57CT	+5 / -	3	✓ Closing fragment
09-28 14:28	40m	- / -	DL7FAI	-2 / -	5	Partial capture
09-28 14:25	40m	- / +8	DK1HSI	-6 / -	2	Partial capture
09-28 14:24	40m	- / -8	F1PBZ	-12 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
141345  +8  771  ON4UR DG0MAN R+10 (x2)
142115 -18 1399  ON4UR OZ1SMB JO54
142115 -16 1668  ON4UR ON4MHZ JN29
142145 -16 1399  ON4UR OZ1SMB JO54
142415 -19 1901  ON4UR F4GUK JN18 (x3)
144445 -11  864  ON4UR EU6UE -15 (x3)
145345  -6  650  CQ ON4UR JO11 (x2)
145630  -8  607  ON3URT ON4UR JO11
145745 -12  380  ES6DO ON4UR JO11

20m

UTC    dB Audio  Message
152645 -15  968  OH7FQH ON4UR JO11
152715 -15  968  OZ/KD0NDU ON4UR JO11 (x3)
152830  -3  824  ON4UR DL1AFH/P +03
152845 -13  967  OZ/KD0NDU ON4UR R-04
130615 -13  968  OM7AMA ON4UR JO11 (x2)
132730 -16  967  G4ZZL ON4UR JO11
133100 -16  967  RA3Y ON4UR JO11 (x3)
140130  +3  966  SQ8GMW ON4UR JO11 (x3)

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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