E75AA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Bosnia-Herzegovina Most frequent locator attributed to this token: JN94

Receiver-side FT8 activity involving E75AA, decoded by SO8OO in southeastern Poland. 6,098 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-29.

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 6,098 FT8 messages attributed to E75AA as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (69%), followed by 40 m (20%) and 80 m (10%). The busiest six-hour window was 07:00-13:00 UTC, containing 36% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -4.3 dB.

Overview

6,098

Messages attributed

UTC dates decoded

468

Active 15-min windows

-4.3 dB

Estimated median S/N

Bands

80m · 622 60m · 31 40m · 1,213 20m · 4,232

First attributed message: 2026-06-06
Last attributed message: 2026-09-29 21:27 UTC

Observed FT8 message patterns

Attributed sample: 6,098 messages
Active dates: 27 UTC dates
Estimated median S/N: -4.3 dB
Estimated 10th-90th percentile: -12 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 193, moderate (-15 to -9 dB) 1,445, strong (≥ -8 dB) 4,460.

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 E75AA in decoded directed-looking exchanges:

F1PBZ · France ×2 DF8AA · Fed. Rep. of Germany ×2 RI1FJL · Franz Josef Land ×2 DO2EY · Fed. Rep. of Germany ×2 IU8WPZ · Italy ×2 DH1NGL · Fed. Rep. of Germany DK0RST · Fed. Rep. of Germany EA1JXB · Spain EA5IHM · Spain F1TYP · France F4GUK · France G0LUH · 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 E75AA

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: JN94 · 4,938 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 640 km (approx.)
Last such locator decoded: 2026-09-29 21:26 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	E75AA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-29 21:26	80m	-6 / -	F1HSY	-11 / 0	3	✓ Closing observed
09-29 21:25	80m	-11 / -8	DO1OAS	-11 / -15	5	✓ Full exchange observed
09-29 21:23	80m	0 / -	ON4MAP	- / -19	2	✓ Closing fragment
09-29 21:20	80m	-6 / -15	SQ6JFJ	-3 / 0	7	✓ Full exchange observed
09-29 21:17	80m	-6 / -19	DO5PY	-3 / -8	4	✓ Full exchange observed
09-29 21:14	80m	-4 / 0	9A2AA	-2 / +10	6	✓ Full exchange observed
09-29 21:09	80m	+1 / -	T77RN	- / -5	6	✓ Closing fragment
09-08 04:56	80m	-5 / -	J38DX	- / -	3	Partial capture
09-08 04:49	80m	0 / -	J38DX	- / -	9	Partial capture
09-08 04:48	80m	+4 / -	W1VT	-19 / -16	4	✓ Closing observed
09-03 20:50	80m	+12 / -	RI1FJL	- / -19	5	✓ Closing fragment
09-02 18:38	80m	-3 / -	RI1FJL	- / -24	15	Partial capture
09-02 18:06	80m	- / -	OV9A	-4 / -	2	Partial capture
09-02 18:03	80m	+13 / -	RI1FJL	- / -	60	Partial capture
09-02 17:16	80m	+9 / -	RI1FJL	- / -	20	Partial capture
09-02 17:04	80m	+7 / -	RI1FJL	- / -	14	Partial capture
08-30 23:31	80m	0 / -	9H5SN	- / -	2	Partial capture
08-30 23:22	40m	-8 / -	RI1FJL	- / -	7	Partial capture
08-30 23:11	40m	-10 / -	RI1FJL	- / -20	7	✓ Closing fragment
08-30 23:06	40m	-11 / -	RI1FJL	- / -	2	Partial capture
08-02 22:18	20m	- / -10	2E0DGP	0 / -	3	Partial capture
08-02 22:12	20m	- / +5	EA1JXB	-4 / -	3	✓ Closing fragment
08-02 21:14	20m	- / -10	M7VKI	-11 / -	3	✓ Closing fragment
08-02 20:58	20m	- / -	DK0RST	+5 / -	2	Partial capture
08-02 20:46	20m	- / -	DK0RST	-1 / -	3	✓ Closing fragment
08-02 20:10	20m	- / +6	OZ1LGJ	-3 / -	4	✓ Closing fragment
08-01 21:07	80m	+6 / -4	HA3GX	+1 / +1	5	✓ Full exchange observed
08-01 21:07	80m	+2 / -	TF4M	- / -10	2	✓ Closing fragment
07-31 22:33	40m	- / -	DC2SF	-16 / -	2	✓ Closing fragment
07-31 21:51	40m	- / -2	R3DAJ	-8 / -	3	✓ Closing fragment
07-31 21:21	40m	- / -5	OM3PR	-10 / -	3	✓ Closing fragment
07-31 20:12	80m	+8 / -9	MM0HVU	-22 / -20	4	✓ Full exchange observed
07-31 20:11	80m	+8 / -1	SH0T	+7 / -9	5	✓ Full exchange observed
07-31 20:06	80m	+7 / -4	SM7VRZ	-6 / -14	5	✓ Full exchange observed
07-31 20:03	80m	+6 / -	OD5SB	- / -27	5	✓ Closing fragment
07-31 20:02	80m	+5 / -	DO4FOX	- / -17	3	Partial capture
07-31 20:01	80m	+9 / -	DA6NEL	-23 / -21	2	Partial capture
07-31 19:56	80m	+6 / +9	HB9DKG	+5 / +3	5	✓ Full exchange observed
07-31 19:55	80m	+6 / +6	IV3DSG	-4 / +3	5	✓ Full exchange observed
07-31 19:54	80m	+4 / -	EA7KUH	- / -15	2	✓ Closing fragment
07-31 19:51	80m	+6 / -	8S7DL	- / -10	3	✓ Closing fragment
07-31 19:48	80m	+3 / -	IU8WPZ	- / -16	3	✓ Closing fragment
07-31 19:47	80m	+4 / -18	R5AT	-13 / -16	5	✓ Full exchange observed
07-31 19:43	80m	+5 / -2	EI4JD	-13 / -17	5	✓ Full exchange observed
07-31 19:38	80m	+8 / -	IU8WPZ	- / -15	2	✓ Closing fragment
07-31 19:30	80m	+4 / +10	LZ2OQ	-7 / -2	2	Partial capture
07-31 19:28	80m	+6 / -3	DO2EY	-4 / -13	5	✓ Full exchange observed
07-31 19:25	80m	+12 / -	LZ2OQ	-10 / 0	7	Partial capture
07-31 19:25	80m	+10 / 0	RY6AAY	-7 / -4	7	✓ Full exchange observed
07-31 19:13	80m	-14 / -12	YO4LUP	-2 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
212215  -6 1880  CQ E75AA JN94 (x3)
212345  +0 1880  ON4MAP E75AA -19 (x2)
212445  -1 1880  CQ E75AA JN94
212500  -8 1880  E75AA DO1OAS JO51
212515 -10 1880  DO1OAS E75AA -15
212530 -10 1880  E75AA DO1OAS R-08
212545 -12 1880  DO1OAS E75AA RR73
212600 -15 1880  E75AA DO1OAS 73
212615  -5 1880  CQ E75AA JN94
212630 -11 1519  E75AA F1HSY JN25
212645  -6 1880  F1HSY E75AA +00 (x2)

40m

UTC    dB Audio  Message
231145  -6 1943  RI1FJL E75AA JN94 (x14)
204000  -6  396  E75AA F1PBZ RR73

20m

UTC    dB Audio  Message
204315  +4  563  E75AA IU2THY R+15
204615  -2 2705  E75AA DK0RST JO31 (x5)
211415 -11 2487  E75AA M7VKI JO02 (x3)
221215  -4 2706  E75AA EA1JXB IN73 (x3)
221845  -2 2707  E75AA 2E0DGP JO01 (x3)

60m

UTC    dB Audio  Message
190215  +1  223  CQ E75AA JN94
190245  -7 1782  F5RMK E75AA JN94
190300 -13 1331  E75AA F5RMK -15
190315  -6 1782  F5RMK E75AA R-03
190330 -16 1330  E75AA F5RMK RR73
190345  -6 1782  F5RMK E75AA 73
190430  -6 1782  DL1UDO E75AA JN94
190445  -7 1527  E75AA DL1UDO -13 (x2)
190530 -10 1782  DL1UDO E75AA 73

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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