UA7XA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LN13

Receiver-side FT8 activity involving UA7XA, decoded by SO8OO in southeastern Poland. 437 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-08.

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 437 FT8 messages attributed to UA7XA as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (95%), followed by 20 m (4%) and 80 m (1%). Several six-hour UTC windows tied for the largest share (92%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -5 dB.

Overview

437

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 4 40m · 415 20m · 18

First attributed message: 2026-06-06
Last attributed message: 2026-09-08 20:50 UTC

Observed FT8 message patterns

Attributed sample: 437 messages
Active dates: 19 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -15 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 35, moderate (-15 to -9 dB) 75, strong (≥ -8 dB) 327.

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 UA7XA in decoded directed-looking exchanges:

ON1DGN · Belgium ×2 SV1DKR · Greece F5SJC · France PD9FLX · Netherlands UN3P · Kazakhstan 3A2MW · Monaco EW4DX · Belarus EB3JT · Spain UA9CR · Asiatic Russia OK2VCR · Czech Republic F5MYH · France UA9FKM · European Russia

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 UA7XA

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: LN13 · 229 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,760 km (approx.)
Last such locator decoded: 2026-09-08 20:48 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	UA7XA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 21:28	40m	- / -9	TA7ARH	+12 / -	2	✓ Closing fragment
09-08 21:23	40m	- / -24	A71AH	-8 / -	2	✓ Closing fragment
09-08 20:49	40m	+1 / -	JH0EHQ	- / -18	2	✓ Closing fragment
09-08 20:48	40m	+1 / -	TA9EN	- / -25	3	✓ Closing fragment
09-08 20:45	40m	+9 / -	6K5XZE	- / -23	3	✓ Closing fragment
09-08 20:38	40m	+6 / -	BG7BVP	- / -17	4	✓ Closing fragment
09-06 19:12	40m	-16 / -	9H4JX	- / -14	2	Partial capture
09-06 15:48	40m	-10 / -	BG0FQU	- / -	3	Partial capture
09-06 15:23	40m	-3 / -	VJ6X	- / -22	4	✓ Closing fragment
09-06 15:19	40m	-7 / -6	UA4FEN	-8 / -	4	✓ Closing observed
09-06 15:15	40m	-13 / -6	R73SLET	-7 / -8	5	Partial capture
09-06 15:10	40m	-12 / -12	UA6HJT	+4 / 0	6	✓ Full exchange observed
09-06 15:08	40m	-18 / -5	R1943OD	-8 / -	2	Partial capture
09-05 18:15	40m	-4 / -	LA5LDX	- / -22	7	✓ Closing fragment
09-05 18:09	40m	-3 / -7	SQ5PTZ	-8 / -10	5	✓ Full exchange observed
09-05 18:08	40m	-4 / -4	R1CF	-1 / -2	4	✓ Full exchange observed
09-05 17:58	40m	-6 / -	EK/RX3DPK	- / -	2	Partial capture
09-05 17:55	40m	-1 / -	R3LDK	+1 / -8	3	✓ Closing observed
09-05 17:52	40m	0 / -	R9OAK	- / -13	2	✓ Closing fragment
09-05 17:50	40m	-1 / -11	UB3FBD	-5 / -7	5	✓ Full exchange observed
09-05 17:48	40m	-4 / -	UA3UBV/1	- / -11	2	Partial capture
09-05 17:43	40m	-1 / -14	LA4O	-6 / -7	6	✓ Full exchange observed
09-05 17:43	40m	0 / -4	RC3D	+11 / +5	5	✓ Full exchange observed
09-05 17:41	40m	-5 / -4	UB3PET	-4 / -	5	✓ Closing observed
09-05 17:39	40m	-7 / -	OU7M/P	- / -8	2	Partial capture
09-04 21:49	40m	-4 / -	EA8J	- / -	2	Partial capture
09-03 20:33	40m	-5 / -	EC3A	- / -12	2	✓ Closing fragment
09-03 20:30	40m	-6 / -	RA0CCK	- / -	2	Partial capture
09-03 20:26	40m	-2 / -	R2FDP	- / -18	2	✓ Closing fragment
09-03 20:23	40m	-1 / -	F5SJC	- / -19	2	✓ Closing fragment
09-03 20:20	40m	+5 / -10	ON1DGN	-14 / -12	4	✓ Full exchange observed
09-03 20:17	40m	+1 / -	JR1EMO	- / -22	3	Partial capture
09-03 20:13	40m	-7 / -12	RA4HG	+2 / -	3	✓ Closing observed
09-03 20:06	40m	-5 / -	R0LM	- / -20	2	✓ Closing fragment
09-03 20:02	40m	-3 / -	RW3ZC	-5 / +1	3	✓ Closing observed
09-03 19:55	40m	-5 / -	F5RAV	- / -12	2	✓ Closing fragment
09-03 19:53	40m	-1 / -13	EB3JT	-5 / -5	5	✓ Full exchange observed
09-03 19:50	80m	- / -14	R1DM	0 / -	2	Partial capture
08-30 21:34	40m	- / -	PD1SCO	-2 / -	2	Partial capture
08-30 21:32	40m	-6 / -22	R6DG	-5 / -10	5	✓ Full exchange observed
08-30 19:20	40m	-14 / -	ZL2NU	- / -	3	Partial capture
08-30 17:37	40m	-8 / -16	OZ/KD0NDU	-4 / -21	4	Partial capture
08-30 17:22	40m	- / -9	RA3TKS	+4 / -	2	Partial capture
08-30 17:20	40m	+3 / -14	PA2RO	-7 / -	4	✓ Closing observed
08-30 17:19	40m	-1 / -	R3LAF	- / +4	2	✓ Closing fragment
08-30 17:18	40m	+1 / -	DK8ZZ	0 / -9	4	✓ Closing observed
08-30 17:16	40m	-1 / -18	R3XBS	-2 / -	4	✓ Closing observed
08-27 20:47	40m	- / -	PD0LBY	-7 / -	2	Partial capture
08-27 20:45	40m	-15 / -	GI6HKE	- / -15	3	✓ Closing fragment
08-27 20:37	40m	-5 / -18	UA9CR	-2 / +4	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
203830  +5 2432  BG7BVP UA7XA LN13 (x3)
204545  +6 2590  6K5XZE UA7XA LN13 (x3)
204800  +3 1283  TA9EN UA7XA LN13 (x3)
204930  -5  855  JH0EHQ UA7XA -18 (x2)
212315  -8  607  UA7XA A71AH -24 (x2)
212830 +12  312  UA7XA TA7ARH -09 (x2)

80m

UTC    dB Audio  Message
205730 -21 1418  CQ UA7XA LN13
205745  +7 1417  UA7XA UA4FKT LO23
205800 -22 1417  UA4FKT UA7XA -06
205815 +12 1417  UA7XA UA4FKT R-18
205830 -24 1418  UA4FKT UA7XA RR73
205845  +9 1417  UA7XA UA4FKT R-18 (x3)
210145 -21  242  <RT25KS> UA7XA LN13
210200  +9  241  UA7XA RT25KS -21
195000  +0 2114  UA7XA R1DM -14 (x2)

20m

UTC    dB Audio  Message
184145  -6 2228  UA7XA IV3IUM 73
184730 -15 1633  UA7XA ON1DGN -14 (x2)
185215  -1 1579  UA7XA PD9FLX JO22 (x3)
185545  +2 3058  UA7XA TA4SSK KM57 (x3)
185945  -3 1619  UA7XA ON1JP -02 (x2)
190145  +0 3048  UA7XA TA4SSK KM57 (x2)
192700  -8 2999  CQ UA7XA LN13
193300 -10 2857  R2FAQ UA7XA LN13

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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