A71EM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Qatar Most frequent locator attributed to this token: LL55

Receiver-side FT8 activity involving A71EM, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-13.

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 17 FT8 messages attributed to A71EM as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 20 m (29%) and 40 m (12%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 10 40m · 2 20m · 5

First attributed message: 2026-06-15
Last attributed message: 2026-09-13 19:29 UTC

Observed FT8 message patterns

Attributed sample: 17 messages
Active dates: 4 UTC dates
Estimated median S/N: -8 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 11.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with A71EM in decoded directed-looking exchanges:

ON6AA · Belgium PA3BUD · Netherlands 9A4V · Croatia RA6SA · European Russia RU3GF · European Russia UA4FKT · European Russia

Most frequent locator attributed to A71EM

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: LL55 · 16 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,694 km (approx.)
Last such locator decoded: 2026-09-13 19:26 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	A71EM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-13 19:29	40m	- / -	G5TV	-14 / -	5	Partial capture
09-13 19:26	40m	-8 / -17	IV3UWA	+1 / -5	11	Partial capture
09-13 19:19	80m	- / -	DJ7M	+10 / -	5	Partial capture
09-13 19:19	80m	- / -	SV8TCK	-3 / -	4	Partial capture
09-13 19:19	80m	- / -	YO6FNF	+4 / -	3	Partial capture
08-30 01:13	80m	- / -	DO3KTY	+9 / -	6	Partial capture
08-30 01:12	80m	- / -	DK5WL	+6 / -	2	Partial capture
08-30 01:12	80m	- / -	K6UFO	-17 / -	3	Partial capture
08-30 01:11	80m	- / -	SP1ZMO	+10 / -	2	Partial capture
08-30 01:10	80m	- / -	SM0ASB	-10 / -	2	Partial capture
08-30 01:08	80m	- / -	SV1EKI	-1 / -	4	Partial capture
08-30 01:06	80m	- / -	OZ1KWJ	+5 / -	3	Partial capture
08-30 01:06	80m	- / -	S53X	+5 / -	14	Partial capture
08-30 01:03	80m	- / +5	9A4V	+13 / -	8	✓ Closing fragment
08-30 01:01	80m	- / -8	RA6SA	+4 / -	6	✓ Closing fragment
08-30 01:00	80m	- / -9	LA4GHA	-8 / -	11	Partial capture
08-30 01:00	80m	- / -14	RU3GF	+10 / -	6	✓ Closing fragment
08-30 00:59	80m	- / -	DK5WL	0 / -	2	Partial capture
08-30 00:59	80m	- / +3	UA4FKT	+11 / -	4	✓ Closing fragment
08-30 00:58	80m	- / -	TF4M	-22 / -	2	Partial capture
08-30 00:57	80m	- / -	DO5PY	-11 / -	3	Partial capture
08-30 00:57	80m	- / -11	UR3QCB	-2 / -	4	Partial capture
08-01 20:10	40m	- / -	UW5KW	-4 / -	4	Partial capture
08-01 20:07	80m	- / -	SV1EKI	-6 / -	4	Partial capture
07-24 10:14	10m	- / -	ON7DE	-20 / -	5	Partial capture
07-06 04:21	20m	- / -11	PA3BUD	-20 / -	2	✓ Closing fragment
07-05 18:24	20m	- / -8	ON6AA	+4 / -	5	✓ Closing fragment
07-05 18:19	20m	- / -	DL1R	+4 / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
192715  +2 1892  A71EM IV3UWA R-19
192715 -11 1944  A71EM IU7VOB JN81
192745  -2 1892  A71EM IV3UWA R-14 (x3)
192900  -8 1634  IV3UWA A71EM -05
192915  +1 1920  A71EM IV3UWA R-13
192915 -15 1770  A71EM G5TV IO93
192945  +1 1920  A71EM IV3UWA R-13
192945 -16 1771  A71EM G5TV IO93
193015  +1 1920  A71EM IV3UWA R-13 (x2)
193115 -13 1770  A71EM G5TV IO93 (x3)

80m

UTC    dB Audio  Message
011500  +6 1266  A71EM DO3KTY JN49 (x2)
191945  +4 1582  A71EM YO6FNF KN25
191945  -2  344  A71EM SV8TCK KM18
191945  +9  417  A71EM DJ7M JN49
192015  +6 1582  A71EM YO6FNF KN25
192015  -3  344  A71EM SV8TCK KM18
192015 +12  417  A71EM DJ7M JN49
192045  -3  344  A71EM SV8TCK KM18
192045 +11  417  A71EM DJ7M JN49 (x2)
192145  +2 1582  A71EM YO6FNF KN25
192145  -5  344  A71EM SV8TCK KM18
192145 -16 1477  A71EM IT9SMU JM77
192215  +8  379  A71EM DJ7M JN49

10m

UTC    dB Audio  Message
101415 -22 1827  A71EM ON7DE JO20 (x5)
102215  -7 1123  A71EM OZ3TEK JO55
143700 -24 2010  A71EM EA8DQE IL27

20m

UTC    dB Audio  Message
181945  +2 2722  A71EM DL1R JN58 (x8)
182445  +0 2579  A71EM ON6AA JO11 (x5)
042115 -20 2254  A71EM PA3BUD R-11 (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.

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