OZ4ABH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO45

Receiver-side FT8 activity involving OZ4ABH, decoded by SO8OO in southeastern Poland. 111 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-07-27 and 2026-09-20.

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 111 FT8 messages attributed to OZ4ABH as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (64%), followed by 40 m (28%) and 20 m (5%). Most decodes (74%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

111

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 1 80m · 71 40m · 31 20m · 5 10m · 3

First attributed message: 2026-07-27
Last attributed message: 2026-09-20 19:32 UTC

Observed FT8 message patterns

Attributed sample: 111 messages
Active dates: 11 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -15 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 42, strong (≥ -8 dB) 59.

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 OZ4ABH in decoded directed-looking exchanges:

F6BHK · France ×2 E75W · Bosnia-Herzegovina RI1FJL · Franz Josef Land UA1RC · European Russia 4O7CC · Montenegro DJ0MAB · Fed. Rep. of Germany E74K · Bosnia-Herzegovina F5RRS · France G0BLB · England K4YT · United States KS1WK · United States M0KCB/P · England

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 OZ4ABH

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: JO45 · 38 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,058 km (approx.)
Last such locator decoded: 2026-09-20 19:30 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	OZ4ABH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 19:31	80m	+2 / -5	OE2AGZ	-11 / -18	5	✓ Full exchange observed
09-20 19:25	80m	- / -9	DK7TX	+6 / -	4	✓ Closing fragment
09-20 19:22	80m	-4 / -24	IQ0AAI	-5 / +1	4	✓ Full exchange observed
09-20 19:19	80m	-10 / -	SN100PKP	- / -	2	Partial capture
09-20 19:11	80m	- / -14	OK1AWC	+12 / -	2	✓ Closing fragment
09-19 01:30	80m	- / -10	II7IABB	-6 / -	2	Partial capture
09-19 01:28	80m	+2 / -	R2EA/P	- / -	2	Partial capture
09-19 01:26	80m	-1 / -	EW2ZC	- / -	2	Partial capture
09-19 01:23	80m	-4 / -13	9A2TN	0 / +7	3	Partial capture
09-19 01:21	80m	- / -2	DL9KM	-8 / -	4	✓ Closing fragment
09-19 01:19	80m	-7 / -17	PE1NPS	-16 / -9	9	✓ Full exchange observed
09-19 01:19	80m	-4 / -9	UR1CCT	+20 / -	5	✓ Full exchange observed
09-19 01:14	80m	- / 0	SN40KZE	+3 / -	3	✓ Closing fragment
09-19 01:13	80m	0 / +2	ON4MAP	-18 / -10	2	Partial capture
09-19 01:11	80m	- / -13	IU5SCG	-18 / -	11	✓ Closing fragment
09-19 01:11	80m	-5 / -	F1IQH	- / -6	2	Partial capture
09-19 01:09	80m	-5 / 0	OK1UOZ	+14 / +8	7	✓ Full exchange observed
09-19 01:06	80m	-12 / -15	RN2F	+8 / -	4	✓ Closing observed
09-17 02:35	80m	-4 / -9	UT5ECZ	+13 / +2	4	✓ Full exchange observed
09-17 02:33	80m	-6 / 0	SQ6ELK	+2 / +3	3	✓ Full exchange observed
09-17 02:33	80m	-12 / -	YO6GLT	+6 / -18	2	Partial capture
09-17 02:31	80m	-7 / -22	RA4ABH	0 / -14	5	Partial capture
09-17 02:31	80m	-4 / -9	SP9WLC	+19 / -	3	✓ Closing observed
09-17 02:29	80m	-10 / -8	SP2ZAB	-15 / -20	2	Partial capture
09-17 02:29	80m	-2 / -14	DO9BAU	+7 / +2	6	✓ Full exchange observed
09-17 02:28	80m	-12 / -10	R5AV	+9 / +2	4	✓ Full exchange observed
09-17 02:26	80m	-6 / -14	IQ4JO	+9 / -5	5	✓ Full exchange observed
09-17 02:24	80m	-6 / +3	LY2EW	+10 / -9	5	✓ Full exchange observed
09-17 02:20	80m	- / -8	ON4MAP	-16 / -	3	✓ Closing fragment
09-17 02:17	80m	-5 / -	DO1ID	- / -1	2	✓ Closing fragment
09-17 02:15	80m	-7 / -7	HA7TM	+24 / -	4	✓ Full exchange observed
09-17 02:07	40m	- / +5	UA4FKT	+10 / -	4	✓ Closing fragment
09-11 06:26	80m	-14 / +4	DO1FZL	-12 / -	4	✓ Full exchange observed
09-11 06:20	80m	-13 / -	DO1LR	-19 / -	4	✓ Closing observed
09-10 07:43	40m	-8 / -	M0KCB/P	- / -	2	✓ Closing fragment
09-08 08:13	40m	-8 / -	DH1AHL/P	- / -	2	Partial capture
09-08 08:12	40m	-9 / -	OE7CMT	- / -19	3	✓ Closing fragment
09-08 08:10	40m	-2 / -	MW3FLI	- / +1	3	✓ Closing fragment
09-03 05:51	40m	-12 / -10	E74K	+6 / -2	7	✓ Full exchange observed
09-03 05:48	40m	-15 / -	KS1WK	- / -17	4	✓ Closing fragment
09-03 05:46	40m	- / -19	4O7CC	-18 / -	2	✓ Closing fragment
09-03 05:42	40m	-11 / +6	G0BLB	-8 / +9	3	✓ Full exchange observed
09-03 05:40	40m	-11 / -	OA4ENG	- / -10	4	✓ Closing fragment
09-03 05:38	40m	-8 / -	K4YT	- / -2	3	✓ Closing fragment
08-30 06:53	40m	- / -	SQ8AA	-7 / -	2	Partial capture
08-30 06:52	40m	-10 / -9	F5RRS	-9 / -4	4	✓ Full exchange observed
08-23 13:14	10m	-17 / -	E75W	- / -	3	✓ Closing fragment
08-05 06:54	20m	-5 / -	5N0YEN	- / -13	3	Partial capture
07-27 15:03	20m	-16 / -	UA1RC	- / -4	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
192300  -5 1351  OZ4ABH IQ0AAI RR73
192500  +7 1152  OZ4ABH DK7TX JO31 (x4)
192645  +4 1027  CQ OZ4ABH JO45
192745  -1 1028  GW4HZA OZ4ABH R+19
192945  -1 1027  F6BHK OZ4ABH RR73
193015  +3 1027  CQ OZ4ABH JO45 (x2)
193130 -11 1982  OZ4ABH OE2AGZ JN67
193145  +3 1027  OE2AGZ OZ4ABH -18
193200 -10 1982  OZ4ABH OE2AGZ R-05
193215  +2 2527  OE2AGZ OZ4ABH RR73
193230 -13 1982  OZ4ABH OE2AGZ 73

160m

UTC    dB Audio  Message
024215 -15  960  CQ OZ4ABH JO45

40m

UTC    dB Audio  Message
081045  +3 1033  MW3FLI OZ4ABH R+01 (x2)
081215  -6 1032  OE7CMT OZ4ABH -19 (x2)
081315  -8 1032  DH1AHL/P OZ4ABH JO45 (x2)
081415 -10 1032  OE7CMT OZ4ABH RR73
074300  -8  646  M0KCB/P OZ4ABH JO45 (x2)
124345 -15 1087  MM5WJF/P OZ4ABH R-15
020430 -22 2026  OZ4ABH UA9SY LO63
020700 +13 1137  OZ4ABH UA4FKT LO23 (x4)

20m

UTC    dB Audio  Message
150300 -17 2231  UA1RC OZ4ABH R-04 (x2)
065415  -3 3008  5N0YEN OZ4ABH JO45 (x3)
140930  -3  421  OZ4ABH RI1FJL RR73

10m

UTC    dB Audio  Message
122715 -23 1496  OZ4ABH F4FSY +01
131445 -20 1353  E75W OZ4ABH R+12 (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.

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