UA3FH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving UA3FH, decoded by SO8OO in southeastern Poland. 852 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 48 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-09-12.

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 852 FT8 messages attributed to UA3FH as the transmitting token by decoded message structure across 48 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (48%), followed by 40 m (28%) and 80 m (25%). Most decodes (94%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

852

Messages attributed

UTC dates decoded

196

Active 15-min windows

-14 dB

Estimated median S/N

Bands

160m · 406 80m · 209 40m · 237

First attributed message: 2026-07-02
Last attributed message: 2026-09-12 20:42 UTC

Observed FT8 message patterns

Attributed sample: 852 messages
Active dates: 48 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -22 to -5.7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 366, moderate (-15 to -9 dB) 319, strong (≥ -8 dB) 167.

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 UA3FH in decoded directed-looking exchanges:

OM2WQ · Slovak Republic ×4 RM3ZR · European Russia ×3 RT6Z · European Russia ×3 SP6AXW · Poland ×3 UA3ECJ · European Russia ×3 8S2A · Sweden ×2 DL1CC · Fed. Rep. of Germany ×2 EW1I · Belarus ×2 IK0HBN · Italy ×2 R2EA · European Russia ×2 R3OZ · European Russia ×2 RA3VX · European Russia ×2

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 UA3FH

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: KO85 · 488 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-12 20:42 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	UA3FH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 20:42	80m	- / -	RL7Z	-11 / -	2	Partial capture
09-12 20:41	80m	-12 / -	EH3ST	- / -	2	Partial capture
09-12 20:38	80m	-11 / -	R4AFR	- / +2	4	✓ Closing fragment
09-12 20:31	80m	-2 / -15	RF9C	-14 / -9	6	✓ Full exchange observed
09-12 20:24	80m	-10 / -	UA3LKM	-18 / -9	4	✓ Closing observed
09-12 20:21	80m	-8 / -11	UB3ADO/P	-4 / -2	5	✓ Full exchange observed
09-12 20:19	80m	-6 / -6	R4RJ	-12 / -	4	✓ Full exchange observed
09-12 20:18	80m	-4 / -	RM3TO	- / -	2	Partial capture
09-12 20:13	80m	-12 / -	SM5ACQ	+2 / +3	4	✓ Closing observed
09-12 20:11	80m	-17 / -	EH3ST	- / -	2	Partial capture
09-11 21:30	160m	-20 / -	UB3IBG	-7 / -	2	✓ Closing observed
09-11 21:19	160m	-20 / -	UB3DRL	- / -	3	Partial capture
09-11 21:01	160m	- / -16	UA1OMS	-5 / -	2	✓ Closing fragment
09-11 17:51	160m	- / -13	R2HB	-4 / -	2	✓ Closing fragment
09-11 16:57	160m	- / 0	R3GO	-6 / -	2	✓ Closing fragment
09-11 16:42	160m	- / -9	RN3TT	-17 / -	3	✓ Closing fragment
09-11 16:16	160m	- / +1	RA3QTT	0 / -	2	✓ Closing fragment
09-10 19:42	160m	-23 / -13	DK2CC	-9 / -8	4	✓ Full exchange observed
09-10 19:12	160m	- / -11	RK4FH	-1 / -	3	Partial capture
09-10 19:11	160m	-15 / -9	R2SN	-3 / -	2	Partial capture
09-10 19:09	160m	-11 / -14	UA3PTK	-2 / -	3	✓ Closing observed
09-10 19:07	160m	-12 / 0	RA3GDV	-8 / -	3	✓ Closing observed
09-10 19:06	160m	-14 / -	UD3T	-19 / +10	2	✓ Closing observed
09-09 20:56	40m	+5 / -	EI4JFB	- / -	2	Partial capture
09-09 20:51	40m	+1 / -14	CR7BRV	-16 / -8	9	✓ Full exchange observed
09-09 20:50	40m	0 / -	JH5LCN	- / -	2	Partial capture
09-09 20:45	40m	+2 / -	EI4JFB	- / -	2	Partial capture
09-09 20:43	40m	+2 / -7	HB9EFK	+4 / +6	5	✓ Full exchange observed
09-08 18:43	40m	-9 / -13	R9DT	-14 / -	3	✓ Closing observed
09-08 18:39	40m	-12 / -	HB9JOE	- / -22	2	Partial capture
09-08 18:37	40m	- / -11	SV2AEL	0 / -	4	✓ Closing fragment
09-08 18:36	40m	-11 / -	R8OAE	- / -	2	Partial capture
09-08 18:35	40m	-12 / -8	RX9ABI	-11 / -	2	✓ Closing observed
09-08 18:30	40m	- / -3	R73SLET	+4 / -	2	Partial capture
09-08 18:28	40m	- / -	E77EA	-3 / -	2	Partial capture
09-08 18:26	40m	-6 / -5	RM6OM	-3 / -	4	✓ Closing observed
09-07 20:28	40m	-11 / -	EA8UP	- / 0	5	Partial capture
09-07 20:25	40m	-12 / -	R6HV	-4 / -2	4	Partial capture
09-07 20:20	40m	-6 / -1	OE3PBS	+2 / -	4	✓ Closing observed
09-07 20:18	40m	-8 / -12	IK4RVY	+1 / -3	7	✓ Full exchange observed
09-07 20:02	40m	-9 / -	JH5LCN	- / -6	3	✓ Closing fragment
09-07 20:01	40m	-8 / -	SA3LEJ	- / -	2	Partial capture
09-07 19:59	40m	- / -9	ON1AEY	+5 / -	2	✓ Closing fragment
09-07 19:55	40m	- / -6	HG0NPJ	+2 / -	2	✓ Closing fragment
09-07 19:46	40m	-8 / -	SP100PKP	- / -1	2	Partial capture
09-07 17:08	40m	-9 / -5	RA3WEO	-3 / -	2	✓ Closing observed
09-07 17:05	40m	-8 / -	RV9WJP	- / -17	2	✓ Closing fragment
09-06 21:12	160m	-10 / -	EG1PDA	- / -	2	Partial capture
09-06 21:04	160m	-8 / -12	R5AV	-1 / +10	4	✓ Full exchange observed
09-06 17:41	160m	-11 / -16	SM4IED	-10 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
203215 -14 2235  UA3FH RF9C -15
203230  -6  643  RF9C UA3FH R-09
203245 -14 2235  UA3FH RF9C RR73
203300  -7  643  RF9C UA3FH 73
203400 -10  643  RX4CK UA3FH KO85
203500  -6  643  R4CHN UA3FH KO85
203845 -11  643  R4AFR UA3FH KO85 (x4)
204115 -11  643  EH3ST UA3FH KO85 (x2)
204200  -6 1008  UA3FH RL7Z KN98 (x2)
204245 -14  643  GX4RAF/P UA3FH KO85

160m

UTC    dB Audio  Message
165715  -3 1796  UA3FH R3GO +00 (x2)
170300 -20 1939  RA4P UA3FH KO85
174715 -17 1832  UA3FH RA3X -15
175115  -2  952  UA3FH R2HB -13 (x2)
175545 -10  600  UA3FH UA8J RR73
210145  -8 1625  UA3FH UA1OMS -16 (x2)
210945 -20 2180  DF3YG UA3FH KO85
211930 -22 1943  UB3DRL UA3FH KO85 (x3)
213045  -7  918  UA3FH UB3IBG RR73
213100 -20 1943  UB3IBG UA3FH 73

40m

UTC    dB Audio  Message
204500  +5  440  EI4JFB UA3FH KO85 (x2)
205000  +0  440  JH5LCN UA3FH KO85 (x2)
205130  -1  440  CR7BRV UA3FH KO85 (x3)
205245 -13  890  UA3FH CR7BRV -14
205300  +2  440  CR7BRV UA3FH KO85
205315 -18  890  UA3FH CR7BRV -14
205330  +1  440  CR7BRV UA3FH R-08 (x3)
205600  +5  439  EI4JFB UA3FH KO85 (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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