9A4AA — 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: Croatia Most frequent locator attributed to this token: JN75

Receiver-side FT8 activity involving 9A4AA, decoded by SO8OO in southeastern Poland. 27,913 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 84 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-04.

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 27,913 FT8 messages attributed to 9A4AA as the transmitting token by decoded message structure across 84 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (34%), followed by 80 m (28%) and 20 m (18%). The busiest six-hour window was 19:00-01:00 UTC, containing 42% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.

Overview

27,913

Messages attributed

UTC dates decoded

1,690

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 1,761 80m · 7,770 60m · 3,175 40m · 9,602 20m · 5,007 10m · 598

First attributed message: 2026-06-08
Last attributed message: 2026-11-04 03:21 UTC

Observed FT8 message patterns

Attributed sample: 27,913 messages
Active dates: 84 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -14 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,914, moderate (-15 to -9 dB) 7,041, strong (≥ -8 dB) 18,958.

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 9A4AA in decoded directed-looking exchanges:

HA1ZW · Hungary ×10 M9VVE · England ×5 F4HSB · France ×4 F1PBZ · France ×4 F4NGR · France ×4 OE1TKS · Austria ×3 DL9KM · Fed. Rep. of Germany ×3 EA1ARJ · Spain ×3 G4SRT · England ×3 HF9T · Poland ×3 IK1MJK/P · Italy ×3 IK4LZH · Italy ×3

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 9A4AA

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: JN75 · 26,299 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 708 km (approx.)
Last such locator decoded: 2026-11-04 03:21 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	9A4AA S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 03:10	80m	- / -1	OE1TKS	-2 / -	3	✓ Closing fragment
11-04 02:37	80m	-2 / -7	OE1TKS	+12 / -1	5	✓ Full exchange observed
11-04 01:21	80m	-14 / -16	R4FDD	+1 / -10	4	✓ Full exchange observed
11-04 00:13	80m	-4 / -	DA6SL	-10 / -16	7	✓ Closing observed
11-03 23:54	80m	-8 / -8	DO1OAS	-10 / -14	5	✓ Full exchange observed
11-03 23:38	80m	-8 / -14	ON4MAP	-16 / +6	7	Partial capture
11-03 23:03	80m	-7 / -18	ON1BH	-2 / +10	3	Partial capture
11-03 23:01	80m	-1 / -	LB1NI	-4 / -14	3	✓ Closing observed
11-03 22:44	80m	-6 / -13	YU7AS	+3 / -3	4	✓ Full exchange observed
11-03 22:14	80m	- / -	DL1FRH	-8 / -	3	Partial capture
11-03 22:05	80m	- / -	DL2RUG	-16 / -	2	Partial capture
11-03 21:24	80m	- / -	DO1OAS	-8 / -	2	Partial capture
11-03 21:01	80m	-12 / -	DA6BR	-8 / -17	5	Partial capture
11-03 21:00	80m	- / -	SN9Q	+17 / -	3	Partial capture
11-03 20:23	80m	-19 / -6	DL1SWT	-10 / -1	4	✓ Full exchange observed
11-03 20:09	80m	- / -22	YO8RCA	-4 / -	2	✓ Closing fragment
11-03 19:48	80m	- / -	DJ0ABM	-4 / -	2	Partial capture
11-03 19:06	80m	-13 / -19	UR7EU	-5 / -13	8	✓ Full exchange observed
11-03 18:45	80m	- / -5	YO2CR	0 / -	2	✓ Closing fragment
11-03 18:40	80m	-10 / -	YO4GOU	-12 / -4	4	✓ Closing observed
11-03 18:34	80m	- / -	YO4GOU	-18 / -	3	Partial capture
11-02 19:28	40m	- / -	F4NRP	-6 / -	7	Partial capture
11-02 19:11	40m	- / -	PA0WDN	-10 / -	3	Partial capture
11-02 18:23	40m	- / -4	ON3MOH	-3 / -	3	✓ Closing fragment
11-02 16:29	40m	- / +6	DL1HBG	+12 / -	3	✓ Closing fragment
11-02 16:20	40m	- / -13	DL5MRK	-12 / -	3	✓ Closing fragment
10-29 23:47	160m	- / -	ON8WR	-18 / -	2	Partial capture
10-29 23:24	160m	- / -	ON8WR	-18 / -	3	Partial capture
10-29 22:45	160m	- / -10	IK4UOF	-12 / -	2	Partial capture
10-29 22:29	160m	- / -	SN9Q	-10 / -	2	Partial capture
10-29 22:12	160m	-23 / -14	DJ3AA	+3 / -	4	✓ Closing observed
10-29 22:05	160m	- / -19	IZ0BVU	+2 / -	2	Partial capture
10-29 22:04	160m	-24 / -10	IZ8ESX	-8 / -10	4	✓ Full exchange observed
10-29 21:54	160m	- / -17	4O7CC	+6 / -	2	✓ Closing fragment
10-28 07:55	40m	- / -	SP1ZMO	-11 / -	3	Partial capture
10-28 07:45	40m	-6 / +9	IK8NSR	-14 / -13	3	✓ Full exchange observed
10-28 07:42	40m	- / -	OK2FKU	+10 / -	2	Partial capture
10-28 07:25	40m	- / -	SQ8AA	-5 / -	3	Partial capture
10-28 07:07	40m	- / -	M8GSY	-12 / -	2	Partial capture
10-28 06:58	40m	-7 / +1	DF0KK	+12 / -14	9	Partial capture
10-28 06:12	40m	-7 / -6	LZ1ZF	-5 / -16	9	✓ Full exchange observed
10-28 06:10	40m	- / -	F3CJ	-17 / -	4	Partial capture
10-28 06:04	40m	+2 / +1	YO6BLU	-1 / -11	5	✓ Full exchange observed
10-28 05:54	40m	- / -	M8GSY	-12 / -	2	Partial capture
10-28 05:51	40m	- / -	F3CJ	-13 / -	3	Partial capture
10-28 05:48	40m	- / -	F4NRP	-14 / -	5	Partial capture
10-28 05:46	40m	- / -10	KE4EB	-12 / -	2	Partial capture
10-28 05:45	40m	- / -	F3CJ	-9 / -	3	Partial capture
10-28 05:29	40m	-2 / -	SP9JMZ	- / -13	2	✓ Closing fragment
10-28 03:57	40m	- / -2	M9XPN	-2 / -	7	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
031130  -6 1096  9A4AA OE1TKS 73
031245 -20 2179  CQ 9A4AA JN75 (x14)

40m

UTC    dB Audio  Message
164915 -24  822  CQ 9A4AA JN75
170230 -15  822  9A4AA DL4WB JO64
182330  -9  822  9A4AA ON3MOH JO10 (x3)
191100 -12 1541  9A4AA PA0WDN JO22 (x3)
192800  -8  818  9A4AA F4NRP JN07 (x7)

160m

UTC    dB Audio  Message
002545 -18 1617  CQ 9A4AA JN75 (x12)
040130  -2 1054  9A4AA YO2CK KN15
050945 -18 1617  CQ 9A4AA JN75
233445 -23 1650  9A4AA DL2YMG JO31

60m

UTC    dB Audio  Message
192215  +4  419  CQ 9A4AA JN75 (x3)
192330  -8 1451  9A4AA DD7EE JO41
192345  -3  419  DD7EE 9A4AA -08
192400 -12 1451  9A4AA DD7EE R-04
192415  +6  419  DD7EE 9A4AA RR73
192430 -12 1451  9A4AA DD7EE 73
192445  -4  419  CQ 9A4AA JN75 (x2)
192615  +1  419  YO4BEW 9A4AA -03
192630 -18 1279  9A4AA YO4BEW R-05
192645  +3  419  YO4BEW 9A4AA RR73
192715  -2  419  CQ 9A4AA JN75 (x2)

20m

UTC    dB Audio  Message
200715  -3  449  CQ 9A4AA JN75 (x2)
200800  -2 1564  9A4AA EA1BRT IN73
200815  +1  450  EA1BRT 9A4AA -15 (x2)
200930  -1 1921  9A4AA EA1BRT IN73
201115  -2  449  CQ 9A4AA JN75 (x8)
203400  -5  450  9A4AA G8GDS -06

10m

UTC    dB Audio  Message
134945 -18  850  CQ 9A4AA JN75 (x3)
135715 -13  850  G8WVB 9A4AA RR73
135845 -15  850  CQ 9A4AA JN75 (x5)
140445 -14  850  G3MTL 9A4AA -19
140845 -12  850  CQ 9A4AA JN75
140945 -14  850  DA6TT 9A4AA RR73
141015 -15  850  CQ 9A4AA JN75                         a1 (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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee