AA1SU — 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: FN34

Receiver-side FT8 activity involving AA1SU, decoded by SO8OO in southeastern Poland. 684 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-12 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 684 FT8 messages attributed to AA1SU as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 40 m (31%) and 80 m (24%). Most decodes (99%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

684

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 165 40m · 209 20m · 310

First attributed message: 2026-06-12
Last attributed message: 2026-10-22 01:03 UTC

Observed FT8 message patterns

Attributed sample: 684 messages
Active dates: 22 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -21 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 200, moderate (-15 to -9 dB) 251, strong (≥ -8 dB) 233.

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 AA1SU in decoded directed-looking exchanges:

F1PBZ · France ×2 CT2GQA · Portugal ×2 F4ACR · France IZ0GRR · Italy PD0DNA · Netherlands PD1PBX · Netherlands R4HGP · European Russia T77RN · San Marino TA3F · Asiatic Turkey AA0KW · United States AA4JW · United States CT2HEX · Portugal

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 AA1SU

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: FN34 · 307 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,686 km (approx.)
Last such locator decoded: 2026-10-22 01:03 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	AA1SU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 01:07	80m	- / -	DK1MCS	+15 / -	3	Partial capture
10-22 01:04	80m	- / -	F1IQH	-10 / -	3	Partial capture
10-22 01:01	80m	- / -15	EA2DYB	+5 / -	3	✓ Closing fragment
10-16 23:17	80m	- / -17	DO1JAR	+12 / -	2	✓ Closing fragment
10-16 23:09	80m	- / -23	DO1JAR	+9 / -	5	Partial capture
10-16 23:09	80m	- / -	PE2JMR	+8 / -	2	Partial capture
10-16 22:55	40m	- / -12	F4HTO	+7 / -	3	✓ Closing fragment
10-16 22:51	40m	- / 0	EA7R	-11 / -	2	Partial capture
10-16 00:49	40m	- / -8	F1PBZ	+6 / -	2	✓ Closing fragment
10-13 00:28	80m	- / -	G0DWV	-10 / -	2	Partial capture
10-10 03:29	40m	- / -19	DH3RD	-15 / -	3	Partial capture
10-07 01:33	80m	- / -23	SP1EUS	-2 / -	3	Partial capture
10-07 01:00	80m	- / -	DO1LKG	-4 / -	2	Partial capture
10-07 00:59	80m	- / -21	UA6LQZ	+7 / -	4	✓ Closing fragment
10-07 00:55	80m	- / -	DO1LKG	-8 / -	5	Partial capture
10-07 00:46	80m	-23 / -	NV1U	-20 / +10	3	✓ Full exchange observed
10-07 00:33	80m	-20 / -	KD9MSP	- / -15	2	Partial capture
10-07 00:32	80m	- / -15	EA5JK	+10 / -	2	✓ Closing fragment
10-07 00:17	80m	- / -	DO1LKG	-8 / -	9	Partial capture
10-06 23:55	80m	- / -24	ON1JP	-14 / -	5	Partial capture
10-06 23:54	80m	-18 / -21	SP9TBT	+6 / -18	7	✓ Full exchange observed
10-06 23:49	80m	-18 / -	TA4SSK	- / -19	2	Partial capture
10-06 23:13	80m	- / -	CT2GQA	-14 / -	2	Partial capture
10-06 01:15	80m	-17 / -	KP3V	- / -4	2	✓ Closing fragment
10-06 01:13	80m	-16 / -	F5OYA/P	- / -19	2	Partial capture
10-06 01:00	80m	-18 / -	Z61DX	- / -24	5	Partial capture
10-06 00:59	80m	-19 / -7	F5OYA/P	-1 / -3	13	✓ Full exchange observed
10-06 00:47	80m	-14 / -	Z61DX	- / -24	2	Partial capture
10-06 00:38	80m	-23 / -	K2CBI	-9 / -	4	✓ Closing observed
10-05 23:58	80m	- / -12	EC5M	-2 / -	2	✓ Closing fragment
10-05 23:49	80m	- / -25	PA3FPQ	+10 / -	3	✓ Closing fragment
10-05 23:27	80m	-20 / -22	DO8JB	-4 / -15	5	✓ Full exchange observed
10-05 23:23	80m	-19 / -	PA3FPQ	+10 / -13	4	Partial capture
10-05 23:23	80m	-18 / -15	OK1SI	+6 / -	3	✓ Closing observed
10-05 23:19	80m	- / -15	HB9RLO	+5 / -	3	Partial capture
10-05 23:19	80m	- / -	OK1SI	+6 / -	3	Partial capture
10-05 23:11	80m	- / -	DO1YFF	+4 / -	3	Partial capture
10-05 23:11	80m	-19 / -19	UX0QT	+2 / -18	4	✓ Full exchange observed
10-05 23:10	80m	- / -12	F4EGM	-4 / -	2	✓ Closing fragment
10-05 23:06	80m	- / -18	F5RMK	-15 / -	3	✓ Closing fragment
09-19 03:06	40m	-8 / -	WD5UB	- / -13	2	Partial capture
09-19 03:01	40m	-9 / -	KL2R	- / -15	2	Partial capture
09-19 02:32	40m	- / -	F4LFG	-8 / -	3	Partial capture
09-19 01:37	40m	-6 / -9	EB1LA	-8 / -5	6	✓ Full exchange observed
09-19 01:36	40m	-8 / -	KD8VYT	- / -	2	✓ Closing fragment
09-19 01:29	40m	- / -	F4LFG	-5 / -	3	Partial capture
09-19 01:29	40m	-6 / -	K5PTB	- / -16	7	Partial capture
09-19 01:22	40m	-6 / -	HA1SU	- / -19	2	✓ Closing fragment
09-19 01:17	40m	-10 / -	AJ5AO/P	- / -24	6	Partial capture
09-19 01:13	40m	-6 / -	KF8EDQ	- / -6	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
231115  +7 1803  AA1SU DO1JAR R-25 (x3)
010100 -13 2703  CQ AA1SU FN34
010115  +6 2702  AA1SU EA2DYB IN83 (x3)
010230 -13 2703  CQ AA1SU FN34 (x2)
010415  -8 2701  AA1SU F1IQH JN27 (x3)
010715  +9 2703  AA1SU DK1MCS JN57 (x3)

40m

UTC    dB Audio  Message
032900 -17 1902  AA1SU DH3RD JN39 (x3)
015100 -14  237  AA1SU EI2IXB -15
020000 -14  758  AA1SU KP4SMC FK68
233545  -2 2588  AA1SU US6US KO50
233545 -17 1855  AA1SU 2E0GSZ IO94
004915  +6 2835  AA1SU F1PBZ -08 (x2)
011130 -10 3087  AA1SU CT2GQA R-18
225130 -11  335  AA1SU EA7R R+00 (x2)
225500  +9 3087  AA1SU F4HTO JO10 (x3)

20m

UTC    dB Audio  Message
231300  -7 2971  CQ AA1SU FN34                         a1
231415  -4 2226  AA1SU IU3MDI JN55 (x8)
234945  -8 3020  CQ AA1SU FN34                         a1 (x2)
174400 -17 2708  AA1SU IZ0GRR 73
174700 -14 3071  AA1SU DK7QJ JO41
181800  +8 2359  AA1SU EA1EMO IN52 (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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