UA3RRT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO03

Receiver-side FT8 activity involving UA3RRT, decoded by SO8OO in southeastern Poland. 367 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-31.

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 367 FT8 messages attributed to UA3RRT 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 (86%), followed by 10 m (12%) and 40 m (2%). Most decodes (60%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.8 dB.

Overview

367

Messages attributed

UTC dates decoded

Active 15-min windows

-12.8 dB

Estimated median S/N

Bands

40m · 7 20m · 317 10m · 43

First attributed message: 2026-06-07
Last attributed message: 2026-08-31 07:13 UTC

Observed FT8 message patterns

Attributed sample: 367 messages
Active dates: 27 UTC dates
Estimated median S/N: -12.8 dB
Estimated 10th-90th percentile: -23 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 144, moderate (-15 to -9 dB) 110, strong (≥ -8 dB) 113.

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 UA3RRT in decoded directed-looking exchanges:

F4HSB · France ×2 2E0NBL · England 4L1FL · Georgia 4Z4MU · Israel A61OK · United Arab Emirates CN2DX · Morocco DM2DXA · Fed. Rep. of Germany EA5AR · Spain EA6UE · Balearic Islands EA8BUE · Canary Islands EW2ZC · Belarus F5IXN · France

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 UA3RRT

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: LO03 · 193 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,376 km (approx.)
Last such locator decoded: 2026-08-31 07:13 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	UA3RRT S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 07:22	20m	- / -9	F6HUK	+2 / -	2	✓ Closing fragment
08-31 07:21	20m	- / -16	II7MGMU	-3 / -	7	Partial capture
08-31 07:08	20m	-1 / -10	R2AL	+2 / -15	9	✓ Full exchange observed
08-31 07:08	20m	-13 / +4	RC9WC	-3 / +1	5	✓ Full exchange observed
08-31 07:07	20m	0 / -6	HB9TWU	+10 / -3	5	✓ Full exchange observed
08-31 07:05	20m	-12 / -	OH8MXJ	- / -5	3	Partial capture
08-31 07:03	20m	-14 / -16	OE7LVI	-7 / -7	5	✓ Full exchange observed
08-31 07:01	20m	-4 / -	R8LCM	- / -12	3	✓ Closing fragment
08-31 07:00	20m	-4 / -	<...>	- / -5	2	Partial capture
08-31 06:58	20m	-2 / -	UA3PRS	-3 / -	2	✓ Closing observed
08-31 06:52	20m	-12 / -	R7TJ	- / -	2	Partial capture
08-31 06:39	20m	+4 / -	VK2QV	- / -	2	Partial capture
08-31 06:36	20m	0 / -	R9OX	- / -14	2	Partial capture
08-31 06:34	20m	-5 / -11	F5IXN	+6 / -12	7	✓ Full exchange observed
08-31 06:33	20m	-2 / -	F4HSB	- / -21	4	✓ Closing fragment
08-31 06:31	20m	0 / -10	RN6MA	+8 / -4	5	✓ Full exchange observed
08-31 06:30	20m	-2 / -	R2FE	- / +1	2	✓ Closing fragment
08-31 06:29	20m	-9 / -11	UN0NZZ	-2 / -2	4	✓ Full exchange observed
08-31 06:21	20m	+1 / -	SM7TZK	- / 0	3	✓ Closing fragment
08-31 06:20	20m	0 / -	7Z1DS	- / -	2	Partial capture
08-31 06:18	20m	+1 / -	R7HC	- / -13	3	✓ Closing fragment
08-31 06:15	20m	+7 / -	A61OK	-14 / -9	5	✓ Full exchange observed
08-30 08:55	20m	-6 / -7	M8GGQ	-13 / -13	5	✓ Full exchange observed
08-30 08:40	20m	-7 / -6	G4DBW	+8 / -	4	✓ Closing observed
08-30 08:37	20m	+2 / -	F4HSB	- / -14	2	✓ Closing fragment
08-30 08:30	20m	- / 0	R4IK	-13 / -	3	Partial capture
08-30 08:25	20m	- / +1	MM7GTN	-12 / -	2	✓ Closing fragment
08-30 08:25	20m	+1 / -1	2E0NBL	-11 / -17	5	✓ Full exchange observed
08-30 08:20	20m	+9 / 0	MI0NWA	-5 / -	3	✓ Closing observed
08-29 16:50	20m	- / -20	E27EEL	-10 / -	2	Partial capture
08-27 08:07	20m	-10 / -	RA1QX	- / -13	4	✓ Closing fragment
08-27 08:06	20m	-11 / -	R2FDP	- / -	2	Partial capture
08-27 08:03	20m	-4 / -20	ON1JP	-4 / -19	5	✓ Full exchange observed
08-27 08:03	20m	-10 / -	UA3UKD	- / -11	3	✓ Closing fragment
08-27 07:42	20m	+2 / -	<...>	- / -	2	Partial capture
08-27 07:07	20m	- / -7	R2DRY	-8 / -	2	✓ Closing fragment
08-27 05:58	20m	-7 / -	R6JY	- / -	3	Partial capture
08-27 05:50	20m	+4 / -15	YV5JLO	-10 / -	8	✓ Closing observed
08-26 11:34	20m	-11 / -14	UB9UZA	-24 / -10	4	✓ Full exchange observed
08-26 11:20	20m	- / -	GJ0KYZ	-4 / -	2	Partial capture
08-25 06:46	20m	-2 / -	DM2DXA	- / -2	3	✓ Closing fragment
08-25 06:45	20m	-3 / -2	RX6APY	+2 / -3	5	✓ Full exchange observed
08-25 06:45	20m	- / -11	DF40ABF	-6 / -	4	Partial capture
08-22 13:09	20m	-10 / -	<...>	- / -	3	Partial capture
08-22 12:58	20m	-12 / -	R1ZW	- / -	2	Partial capture
08-22 12:54	20m	-13 / -	R6AAG	- / -11	2	Partial capture
08-22 12:51	20m	-13 / -13	RA9YTI	-14 / -	3	Partial capture
08-22 12:34	20m	-15 / -	R1BMZ	- / -14	3	✓ Closing fragment
08-22 12:31	20m	-14 / -	VK2XZ	- / -	3	Partial capture
08-22 12:21	20m	-21 / -	RA9YQB	-15 / -4	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
071045  +5 1289  UA3RRT R2AL KO85
071215  -9 1730  R9JDA UA3RRT R-07
071345  -6 1730  VK5PJ UA3RRT LO03
071815  -6 1251  UA3RRT II7MGMU -16
071945  -3  865  UA3RRT HB9EFK RR73
072145  -6 1251  UA3RRT II7MGMU -16 (x2)
072230  +4 1729  UA3RRT F6HUK -09
072245  -4 1251  UA3RRT II7MGMU -16
072300  +0 1730  UA3RRT F6HUK RR73
072315  -2 1251  UA3RRT II7MGMU -16 (x3)
072445 -15 1563  UA3RRT HB9EKJ -14
072545  -3 1251  UA3RRT II7MGMU -16

40m

UTC    dB Audio  Message
183200 -11  957  UA3RRT RA3P RR73
183230 -14 1229  UA3RRT UB6OCD -08 (x2)
183545 -18 1822  UA1WBV UA3RRT LO03
183700 -12 1282  UA3RRT R3XBB -19 (x2)
183745 -20 1822  R3XBB UA3RRT 73
183845 -24 1822  RA9QBR UA3RRT LO03
184045 -21 1822  UA9KAD UA3RRT 73
024400  -6 2313  UA3RRT RG6OO RR73
025215 -15 2031  UA3RRT R7OP -04 (x3)
030215  +2  954  UA3RRT PI4DX -14 (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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