ON4STA — 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 ON4STA, decoded by SO8OO in southeastern Poland. 190 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-07 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 190 FT8 messages attributed to ON4STA as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 80 m (44%) and 20 m (4%). 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 (69%); the estimated median was -4 dB.

Overview

190

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 84 40m · 98 20m · 8

First attributed message: 2026-06-07
Last attributed message: 2026-10-19 05:45 UTC

Observed FT8 message patterns

Attributed sample: 190 messages
Active dates: 13 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -17 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 32, strong (≥ -8 dB) 132.

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 ON4STA in decoded directed-looking exchanges:

SP6FME · Poland ×2 KE9END · United States ×2 SM7WNM · Sweden ×2 R4FDD · European Russia RC5F · European Russia RN6MA · European Russia RV6F · European Russia DA1TE · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany EA4HAI · Spain F4AWT · France GJ0KYZ · Jersey

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 ON4STA

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 · 68 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,194 km (approx.)
Last such locator decoded: 2026-10-19 05:45 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	ON4STA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-19 05:42	80m	-5 / -	C5R	- / -	2	Partial capture
10-19 05:39	80m	+4 / -	F1PSX	- / -9	2	✓ Closing fragment
10-19 05:28	80m	+7 / -9	CT2GQA	-22 / -13	3	✓ Full exchange observed
10-19 05:26	80m	+5 / +1	G8TJQ	-3 / -	4	✓ Closing observed
10-19 05:23	80m	+3 / -	F1IQH	-17 / -1	4	✓ Closing observed
10-19 05:22	80m	- / -	SP9XG	+2 / -	2	Partial capture
10-19 05:20	80m	+6 / +10	ON6MDG	-5 / +5	5	✓ Full exchange observed
10-19 05:18	80m	- / -	DM2GG	+10 / -	4	Partial capture
10-19 05:18	80m	+6 / -	F1PSX	-24 / -11	3	Partial capture
10-19 05:17	80m	- / -	DL/N0PNG	-16 / -	3	Partial capture
10-19 05:17	80m	+8 / -	DO1ID	+3 / +10	5	✓ Full exchange observed
10-19 05:15	80m	+6 / +1	DO1FZL	-2 / -7	6	✓ Full exchange observed
10-19 05:15	80m	- / -	LY3QR	-20 / -	3	Partial capture
10-19 05:15	80m	+9 / -9	SM7WNM	-18 / -6	5	✓ Full exchange observed
10-19 05:13	80m	-1 / -4	YL3BF	-7 / -	4	✓ Closing observed
10-16 14:50	10m	- / -	CR7BRV	+3 / -	5	Partial capture
10-08 04:38	80m	+10 / -	ON4MAP	-16 / -8	4	✓ Closing observed
10-08 04:34	80m	+3 / -4	US7KC	+8 / -6	5	✓ Full exchange observed
10-08 04:34	80m	-1 / -9	F5RAV	-8 / -21	9	Partial capture
10-08 04:31	80m	+6 / -	F4LZZ	- / -11	3	Partial capture
10-08 04:30	80m	- / -	F5RAV	-2 / -	2	Partial capture
10-08 04:29	80m	- / -14	OH6IH	-13 / -	2	Partial capture
10-08 04:29	80m	+7 / -	RC6OU	-14 / -7	5	✓ Closing observed
10-08 04:24	80m	+6 / -10	UX0CZ	-13 / -13	7	✓ Full exchange observed
10-08 04:24	80m	+4 / -7	9A5E	+18 / -	3	✓ Full exchange observed
10-08 04:23	80m	+5 / -	YO7BGA	+5 / +10	2	Partial capture
10-08 04:18	80m	- / -	DO2AY	-12 / -	7	Partial capture
10-08 04:16	80m	+7 / -4	SP6FME	+4 / +9	5	✓ Full exchange observed
10-05 08:04	40m	-12 / -	J88IH	- / -22	2	✓ Closing fragment
10-05 08:00	40m	-16 / -22	YO3GNF	-12 / -24	9	✓ Full exchange observed
10-05 08:00	40m	-15 / -	EA4HAI	- / -20	3	✓ Closing fragment
10-05 07:54	40m	-13 / -12	IK0XUM	-14 / -	4	✓ Closing observed
10-05 07:49	40m	- / -5	F1PBZ	-5 / -	4	Partial capture
10-04 06:56	40m	-4 / -	KE9END	- / -17	4	✓ Closing fragment
10-04 06:51	40m	-5 / -	HB9ZHK	- / -14	3	Partial capture
10-04 06:50	40m	-6 / 0	S57CT	-6 / +8	5	✓ Full exchange observed
10-04 06:49	40m	- / -	F4BYA	+5 / -	3	Partial capture
10-04 06:46	40m	-6 / -2	S55A	-6 / -	8	✓ Full exchange observed
10-04 06:46	40m	- / -	S57CT	-7 / -	2	Partial capture
10-04 06:44	40m	-10 / -	KR4HBQ	- / -12	2	✓ Closing fragment
10-04 06:43	40m	- / -	F4BYA	0 / -	4	Partial capture
09-17 05:54	40m	-3 / -	KJ5PTH	- / -17	3	✓ Closing fragment
09-17 05:49	40m	-3 / -15	SV1DKR	-17 / -14	7	✓ Full exchange observed
09-17 05:47	40m	-2 / +1	DL9KM	-4 / -	5	✓ Full exchange observed
09-17 05:44	40m	-8 / -	KR4LQH	- / -7	2	Partial capture
09-17 05:43	40m	- / -14	IW4ECF	+8 / -	4	Partial capture
09-17 05:43	40m	-6 / -13	ON1DGN	-14 / -15	6	Partial capture
09-17 05:40	40m	-4 / -	IZ8PPI	- / -7	2	✓ Closing fragment
09-17 05:38	40m	-12 / -	IK4TVP	-6 / -	2	✓ Closing observed
09-17 05:37	40m	-14 / -	IU8RFW	- / +1	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
052730  +5 1264  G8TJQ ON4STA RR73
052745  +0 1763  ON4STA G8TJQ 73
052800  +7 1764  CT2GQA ON4STA -13
052815 -22 1764  ON4STA CT2GQA R-09
052830  +7 1264  CT2GQA ON4STA RR73
053830  +5 1817  CQ ON4STA JO20
053900  +7 1317  F1PSX ON4STA -09 (x2)
054100  +6 1317  CQ ON4STA JO20 (x3)
054245  -6 1817  C5R ON4STA JO20 (x2)
054445  +1 1749  CQ ON4STA JO20 (x2)

10m

UTC    dB Audio  Message
145015  -2  716  ON4STA CR7BRV IM58 (x5)

40m

UTC    dB Audio  Message
075930 -12 1187  CQ ON4STA JO20
080000 -17 1687  EA4HAI ON4STA -20
080015  -8 1186  ON4STA YO3GNF KN34
080030 -10 1187  EA4HAI ON4STA -20
080045  -5 1186  ON4STA YO3GNF KN34
080100 -19 1687  EA4HAI ON4STA RR73
080115 -12 1186  ON4STA YO3GNF KN34
080130 -14 1187  YO3GNF ON4STA -24
080145 -15 1186  ON4STA YO3GNF R-22
080200 -19 1686  YO3GNF ON4STA -24
080215 -15 1186  ON4STA YO3GNF R-22
080230 -15 1187  YO3GNF ON4STA RR73
080245 -19 1187  ON4STA YO3GNF 73
080415 -10 1186  J88IH ON4STA R-22 (x2)

20m

UTC    dB Audio  Message
054615  -4 2069  ON4STA RZ4FWA LO23 (x2)
055145  -4 1829  ON4STA R6FX LN14
055245  -5 1518  ON4STA F1ODM +02 (x5)
060245 -15 2565  ON4STA ZL1VAH -12
065045  +2 2182  ON4STA F5HNQ IN98
065100  -7 1074  UR5WCS ON4STA +14
065300  -8 1074  RO6G ON4STA R-13
065715 +21  476  ON4STA F1PBZ -15
065730 -11 1074  CQ ON4STA JO20
065745 +25  476  ON4STA F1PBZ -15

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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