ON4LDT — 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 ON4LDT, decoded by SO8OO in southeastern Poland. 70 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-10 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 70 FT8 messages attributed to ON4LDT as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 160 m (27%) and 60 m (20%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

160m · 19 80m · 37 60m · 14

First attributed message: 2026-10-10
Last attributed message: 2026-11-02 23:59 UTC

Observed FT8 message patterns

Attributed sample: 70 messages
Active dates: 3 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -13 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 52.

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 ON4LDT in decoded directed-looking exchanges:

ON7PR · Belgium ×3 M0IOY · England OM2WW · Slovak Republic 9A4ZM · Croatia EC3A · Spain DL1BBO · Fed. Rep. of Germany EB3JT · Spain F4BND · France IQ2AAH · Italy LZ2VQ · Bulgaria OH6FSO · Finland ON1BH · 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 ON4LDT

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 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,194 km (approx.)
Last such locator decoded: 2026-11-02 23:59 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	ON4LDT S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 23:53	80m	+10 / -8	EB3JT	-18 / -9	3	✓ Full exchange observed
11-02 23:52	80m	+11 / -	DL1BBO	-15 / -10	4	✓ Closing observed
11-02 23:51	80m	+12 / -10	LZ2VQ	+2 / -10	5	✓ Full exchange observed
11-02 23:50	80m	+5 / -	SQ9CXH	- / -14	2	✓ Closing fragment
11-02 23:48	80m	+7 / -	OH6FSO	-10 / -11	5	✓ Closing observed
11-02 23:47	80m	+2 / -	ON7PR	- / +4	2	✓ Closing fragment
11-02 23:45	80m	- / -	TA1MB	-20 / -	2	Partial capture
11-02 23:44	80m	-2 / -4	ON1BH	-14 / 0	3	✓ Full exchange observed
11-02 23:41	80m	+5 / -	9A60CBM	- / -1	5	Partial capture
11-02 23:17	60m	-9 / -7	EC3A	-6 / +3	5	✓ Full exchange observed
11-02 00:16	60m	+4 / +5	CU2DX	-1 / -	3	Partial capture
11-01 23:52	60m	-8 / -	KD2TDA	- / -	4	Partial capture
11-01 23:46	60m	-8 / -	9A4ZM	- / +4	2	✓ Closing fragment
11-01 23:45	60m	-19 / -13	ON7PR	-13 / -11	5	✓ Full exchange observed
11-01 23:28	160m	-20 / -	ON7PR	- / -	2	Partial capture
11-01 23:19	80m	-13 / -11	SP5JMA	+1 / -	5	✓ Closing observed
11-01 23:17	80m	-3 / -14	US2YW	+8 / -	5	✓ Closing observed
11-01 23:14	80m	-8 / -	ON7PR	- / +8	3	✓ Closing fragment
10-10 22:25	160m	-4 / -	F4EGM	- / -8	4	Partial capture
10-10 22:23	160m	-6 / -4	M0IOY	-8 / -2	7	✓ Full exchange observed
10-10 22:20	160m	-7 / -13	OM2WW	+7 / -2	7	✓ Full exchange observed
10-10 22:17	160m	-10 / -12	HA7TM	+10 / -	4	Partial capture
10-10 22:14	160m	-10 / -	II5GG	- / -	2	Partial capture
10-10 22:11	160m	-8 / -	CT2GQA	- / -	3	Partial capture
10-10 21:59	80m	+2 / -1	F4BND	-13 / -7	5	✓ Full exchange observed
10-10 21:46	80m	-3 / +2	IQ2AAH	-7 / +3	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
235030  +4 2847  SQ9CXH ON4LDT -14 (x2)
235115  +3 2847  ON4LDT LZ2VQ KN23
235130 +11 2847  LZ2VQ ON4LDT -10
235145  +2 2847  ON4LDT LZ2VQ R-10
235200 +12 2847  LZ2VQ ON4LDT RR73
235215  +1 2847  ON4LDT LZ2VQ 73
235245 -15 2801  ON4LDT DL1BBO JO43
235330 +13 2847  EB3JT ON4LDT -09
235430  +9 2847  DL1BBO ON4LDT -10
235445 -18 1931  ON4LDT EB3JT R-08
235500  +6 2847  EB3JT ON4LDT RR73
235530 +12 2847  DL1BBO ON4LDT -10 (x2)
235945  -2  700  VO1BE ON4LDT JO20

60m

UTC    dB Audio  Message
234615 -22 1788  ON7PR ON4LDT 73
234645 -10 1788  9A4ZM ON4LDT +04 (x2)
235245 -12 2172  KD2TDA ON4LDT JO20 (x4)
001645  +4  379  CU2DX ON4LDT JO20 (x2)
001730  -1  379  ON4LDT CU2DX +05
231730  -9 1359  EC3A ON4LDT JO20
231745  -9 1359  ON4LDT EC3A -07
231800  -8 1359  EC3A ON4LDT R+03
231815  -4 1359  ON4LDT EC3A RR73
231830 -11 1359  EC3A ON4LDT 73

160m

UTC    dB Audio  Message
222230  +8 1156  ON4LDT OM2WW RR73
222245  -9 1157  OM2WW ON4LDT 73
222300  -5 1014  ON4LDT M0IOY IO93
222315  -6 1157  M0IOY ON4LDT -02
222330  -8 1014  ON4LDT M0IOY R-04
222345  -9 1157  M0IOY ON4LDT -02
222400 -10 1014  ON4LDT M0IOY R-04 (x2)
222515  -3 1157  M0IOY ON4LDT 73
222545  -4 1157  F4EGM ON4LDT -08 (x4)
232845 -19 1502  ON7PR ON4LDT 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

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