AF4OZ — 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: United States Most frequent locator attributed to this token: EM75

Receiver-side FT8 activity involving AF4OZ, decoded by SO8OO in southeastern Poland. 106 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-27.

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 106 FT8 messages attributed to AF4OZ as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (69%), followed by 40 m (16%) and 80 m (15%). Several six-hour UTC windows tied for the largest share (100%), 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

106

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 16 40m · 17 20m · 73

First attributed message: 2026-06-09
Last attributed message: 2026-10-27 02:38 UTC

Observed FT8 message patterns

Attributed sample: 106 messages
Active dates: 20 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 40, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 23.

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 AF4OZ in decoded directed-looking exchanges:

F6AOJ · France ×2 UT5ZC · Ukraine A41HA · Oman ER3PM · Moldova HK0RMR · San Andres & Providencia CT3MD · Madeira Islands DK7ZT · Fed. Rep. of Germany G0OYQ · England LA9GX · Norway LZ2KTS · Bulgaria OH1MLZ · Finland OK1XV · Czech Republic

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 AF4OZ

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: EM75 · 67 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,113 km (approx.)
Last such locator decoded: 2026-10-27 02:38 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	AF4OZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 06:42	80m	- / -	F4FWT	-13 / -	4	Partial capture
11-02 06:42	80m	- / -4	ON8DM	-6 / -	2	✓ Closing fragment
10-27 02:38	40m	-9 / -	RA2FCF	- / -13	2	Partial capture
10-27 02:37	40m	-8 / -	A41HA	- / -21	2	✓ Closing fragment
10-19 01:32	40m	- / -7	OD5XX	+9 / -	4	Partial capture
10-11 00:49	160m	- / -16	UT5ZC	+8 / -	3	✓ Closing fragment
09-30 00:09	80m	- / +3	WP4U	-10 / -	2	Partial capture
09-29 00:33	40m	- / -	ER3PM	-19 / -	2	✓ Closing fragment
09-10 08:25	40m	- / -20	DK7ZT	-5 / -	2	Partial capture
09-10 00:10	80m	- / -	CT7AUT	-24 / -	2	Partial capture
09-10 00:09	80m	- / -18	EA1AUO	-22 / -	7	Partial capture
09-10 00:09	80m	- / -18	F6AOJ	-1 / -	3	✓ Closing fragment
09-08 01:29	80m	- / -	SV8JE	+17 / -	4	Partial capture
09-08 01:27	80m	- / -	PE0JBE	-1 / -	3	Partial capture
09-07 01:33	80m	- / -	EA3LF	-3 / -	3	Partial capture
09-05 21:48	40m	- / -9	VP2MAA	-18 / -	2	Partial capture
09-03 01:05	40m	- / -	LZ3RG	-6 / -	4	Partial capture
09-03 01:03	40m	-19 / -	HK0RMR	- / -3	7	✓ Closing fragment
09-03 00:55	40m	- / -10	SV9QWC	-14 / -	2	Partial capture
09-01 23:56	40m	- / -	G5TV	-11 / -	2	Partial capture
08-26 00:47	80m	- / -16	TF3VS	-10 / -	2	Partial capture
08-22 00:18	80m	- / -	DL1CC	-4 / -	2	Partial capture
08-22 00:17	80m	- / -14	DH1KJ	-7 / -	3	Partial capture
08-22 00:17	80m	- / -20	OH1MLZ	+5 / -	2	✓ Closing fragment
08-21 00:09	80m	- / -15	EA8AJ	-22 / -	5	Partial capture
08-20 01:26	80m	- / -	DK5WL	-7 / -	3	Partial capture
08-20 01:23	80m	-23 / -11	OK1XV	+10 / -15	4	✓ Full exchange observed
08-17 01:03	80m	- / -	TF4M	-18 / -	2	Partial capture
08-16 00:26	80m	- / -16	LA9GX	+6 / -	2	✓ Closing fragment
08-15 00:41	80m	- / -22	SP1MGM	+8 / -	6	Partial capture
08-15 00:37	80m	- / -17	G0OYQ	-2 / -	4	✓ Closing fragment
08-15 00:26	80m	-24 / -16	DK7ZT	0 / -17	5	✓ Full exchange observed
08-15 00:25	80m	-24 / -16	OZ8ABA	+8 / -	3	✓ Closing observed
08-11 01:03	80m	- / -14	UR1CCT	+10 / -	3	Partial capture
08-11 01:02	80m	- / -18	SP6JIU	+20 / -	3	✓ Closing fragment
08-11 00:00	40m	- / -	RN6HK	-8 / -	2	Partial capture
08-09 01:19	80m	-24 / -20	LZ2KTS	+9 / -	4	✓ Closing observed
08-09 01:13	80m	- / -11	CT3MD	-15 / -	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
001100 -24 1525  AF4OZ CT7AUT IM67
001130 -19 2001  AF4OZ EA1AUO -18 (x3)
000915 -10 2091  AF4OZ WP4U FK68 (x2)
064215  -6 1121  AF4OZ ON8DM R-04
064215 -12 2344  AF4OZ F5USK JN03
064245  -6 1121  AF4OZ ON8DM 73
064245 -15 2454  AF4OZ F4FWT JO00
064245  -9  903  AF4OZ F4EGM JN29
064315 -11 2453  AF4OZ F4FWT JO00 (x3)
064545  +1 1584  AF4OZ DD6MH JO62

40m

UTC    dB Audio  Message
082530  -5 1906  AF4OZ DK7ZT -20
082800 -16 2273  AF4OZ G3AKA IO90
004945 -16  987  D2ACE AF4OZ EM75
005345 -21 1633  8R1TM AF4OZ EM75
003345 -19 1245  AF4OZ ER3PM RR73 (x2)
003800  -1 1315  AF4OZ F4EGM JN29
013215  +8 1814  AF4OZ OD5XX -07 (x4)
023715  -7 2773  A41HA AF4OZ R-21 (x2)
023815  -8 2773  RA2FCF AF4OZ EM75 (x2)

160m

UTC    dB Audio  Message
004945  +7 1179  AF4OZ UT5ZC -16 (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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