RA3TNV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO15

Receiver-side FT8 activity involving RA3TNV, decoded by SO8OO in southeastern Poland. 280 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-18 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 280 FT8 messages attributed to RA3TNV as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 80 m (46%) and 20 m (5%). Most decodes (72%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

280

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 130 40m · 137 20m · 13

First attributed message: 2026-07-18
Last attributed message: 2026-09-13 04:39 UTC

Observed FT8 message patterns

Attributed sample: 280 messages
Active dates: 8 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -16 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 77, strong (≥ -8 dB) 170.

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 RA3TNV in decoded directed-looking exchanges:

HI8J · Dominican Republic ×2 RM5F · European Russia ×2 RY3F · European Russia ×2 OZ1HPS · Denmark ×2 R3KFT · European Russia R6OD · European Russia R7DX · European Russia RA3QQI · European Russia RU3EQ · European Russia SV1OML · Greece R1MA · European Russia R3OZ · 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 RA3TNV

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: LO15 · 120 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,549 km (approx.)
Last such locator decoded: 2026-09-13 04:38 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	RA3TNV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-13 04:38	40m	-15 / -	RD4HX	- / -	3	✓ Closing fragment
09-13 04:35	40m	-14 / +1	RK6OV	+1 / +4	5	✓ Full exchange observed
09-13 04:31	40m	-16 / +1	UA3RAU	+9 / -	4	✓ Full exchange observed
09-13 00:22	40m	- / -15	CR7BRV	-3 / -	2	✓ Closing fragment
09-13 00:18	80m	-14 / -	RA7Z	- / -	4	Partial capture
09-13 00:17	80m	-20 / -18	IK4TVP	+6 / -8	4	✓ Full exchange observed
09-13 00:15	80m	-15 / -2	E75C	+12 / -9	6	✓ Full exchange observed
09-13 00:13	80m	-14 / -	SP5DFK/QRP	- / -	2	Partial capture
08-28 21:24	40m	-2 / -	JA0ELB	- / -	2	Partial capture
08-28 21:23	40m	+1 / -	G0JJL/P	-11 / -	2	✓ Closing observed
08-28 21:17	40m	-2 / -7	DJ6OI	-2 / -8	4	✓ Full exchange observed
08-28 21:13	40m	-3 / -	RM8L	- / -	2	Partial capture
08-28 21:12	40m	-7 / -	M1WLK	- / -8	2	✓ Closing fragment
08-28 21:03	80m	0 / +8	RU3NCW	+1 / -	6	✓ Full exchange observed
08-28 21:01	80m	-3 / -	RC9OC	- / -16	3	✓ Closing fragment
08-28 20:58	80m	+2 / +5	OZ1HPS	0 / -8	6	✓ Full exchange observed
08-28 20:56	80m	+4 / +2	RL7Z	-2 / +1	5	✓ Full exchange observed
08-28 20:54	80m	+2 / -	R1CBK	- / -5	2	Partial capture
08-28 20:50	80m	+2 / -1	UF4S	+11 / -	4	✓ Full exchange observed
08-28 20:48	80m	+3 / -6	R2DIH	-13 / -8	5	Partial capture
08-28 20:44	80m	+1 / -	R3AT	+8 / -	3	✓ Closing observed
08-28 20:43	80m	+1 / -9	R2EA/P	+1 / +5	6	✓ Full exchange observed
08-28 20:42	80m	-2 / -	R6OU	- / +7	2	✓ Closing fragment
08-28 20:41	80m	0 / -	RM3TO	- / -	2	Partial capture
08-28 20:40	80m	+4 / -	UB3BGN	- / -	2	Partial capture
08-28 20:38	80m	+3 / +1	RK4FAJ	-4 / -	5	✓ Full exchange observed
08-19 04:08	40m	-12 / -	UA3YPS	- / -	2	✓ Closing fragment
08-19 04:06	40m	-12 / -	Z31B	- / -	2	✓ Closing fragment
08-19 04:03	40m	-12 / +4	UA3WG	-14 / +2	3	✓ Full exchange observed
08-19 04:03	40m	-11 / -11	RA3TVW	-9 / -	2	Partial capture
08-18 20:01	40m	-8 / -	R1BRZ	- / -	2	✓ Closing fragment
08-18 19:58	40m	-9 / -	R4HGK	- / -1	4	✓ Closing fragment
08-18 19:57	40m	-7 / -	UB3ANV	- / -	2	Partial capture
08-18 19:56	40m	-7 / -2	RV3V	-14 / +10	5	✓ Full exchange observed
08-18 19:54	40m	-8 / -	JR3NZC	- / -	2	Partial capture
08-18 19:51	40m	-12 / -	RU3XW	- / +8	2	Partial capture
08-18 19:42	40m	- / -7	DL1DXX	-10 / -	2	✓ Closing fragment
08-18 19:41	40m	-8 / -	JG4NNS	- / -11	5	✓ Closing fragment
08-18 19:37	40m	-8 / -	JG1IPZ	- / -	2	Partial capture
08-18 16:43	40m	-20 / -	RM2P	-14 / -	4	✓ Closing observed
08-18 16:42	40m	-22 / -	RD7O	-10 / -7	3	✓ Full exchange observed
08-18 16:33	40m	-9 / -	BI1HJR	- / -13	3	✓ Closing fragment
08-12 17:29	80m	-7 / -9	R0AH	-12 / -	3	Partial capture
08-12 17:27	80m	-5 / -	R4NBV	- / -	2	Partial capture
08-12 01:19	40m	-14 / -12	W1RQ	-15 / -	2	Partial capture
08-12 01:17	40m	-15 / 0	SP0DF	-19 / -	3	Partial capture
08-12 01:17	40m	-14 / -	R5AV	- / -	2	✓ Closing fragment
08-12 01:14	40m	-15 / -	CR5VP	- / -12	2	Partial capture
08-12 00:46	20m	- / -5	HI8J	-13 / -	2	✓ Closing fragment
08-11 23:36	20m	- / -19	HI8J	-8 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
042845 -11 1882  R6LPF RA3TNV RR73
043100  +9 1096  RA3TNV UA3RAU +01
043115 -22 1926  UA3RAU RA3TNV R+13
043130  +9 1096  RA3TNV UA3RAU RR73
043145 -11 1926  UA3RAU RA3TNV 73
043345 -12 1926  UI6O RA3TNV R+03
043545 -18 1926  RK6OV RA3TNV LO15
043600  +1  417  RA3TNV RK6OV +01
043615 -11 1926  RK6OV RA3TNV R+04
043630  +1  417  RA3TNV RK6OV RR73
043645 -13 1926  RK6OV RA3TNV 73
043815 -16 1926  EH3ST RA3TNV LO15
043845 -17 1926  RD4HX RA3TNV LO15 (x3)

80m

UTC    dB Audio  Message
001330 -12 1806  SP5DFK/QRP RA3TNV R+14
001500 -16 1806  E75C RA3TNV LO15 (x2)
001615 +11 1920  RA3TNV E75C -02
001630  -8 1806  E75C RA3TNV R-09
001645 +12 1920  RA3TNV E75C RR73
001700 -22 1806  E75C RA3TNV 73
001715  +5 1595  RA3TNV IK4TVP -18
001730 -23 1806  IK4TVP RA3TNV R-08
001745  +7 1595  RA3TNV IK4TVP RR73
001800 -16 1806  IK4TVP RA3TNV 73
001830 -15 1806  RA7Z RA3TNV LO15 (x4)

20m

UTC    dB Audio  Message
193345  -5 2420  RA3TNV PY7XC 73
193630  -8 2830  <...> RA3TNV LO15
193730  -5 2830  PD0BOR RA3TNV LO15
193830  -6 2831  DD1UN RA3TNV R-05 (x2)
194145  -5 2830  EX8ABR RA3TNV LO15
060600  -7 2811  RA3TNV RA3ZGT KO81
155915  -5 2562  RA3TNV RA3PN KO84 (x2)
233600  -8 2369  RA3TNV HI8J -19 (x2)
235230 -15  830  RA3TNV RA7O RR73
235700 -16 1763  RA3TNV RV6LN RR73
004630 -12 2369  RA3TNV HI8J -05 (x2)

10m

UTC    dB Audio  Message
195245  -3  463  RA3TNV R6OD RR73
195815  -9 2379  RA3TNV R3KFT +00 (x2)
200600  -5 1494  RA3TNV RA3QQI 73
200700  -8 2589  RA3TNV ZA/KN7L -07
200830 -13 1607  RA3TNV SV1OML +01 (x2)
201430  -3 2022  RA3TNV YO9PH -10
201700 -24 1910  RA3TNV RA1AOB KO59 (x3)
114915 -11 1816  RA3TNV R7DX R-03 (x2)
053315 -15  910  RA3TNV RU3EQ -06 (x2)

160m

UTC    dB Audio  Message
202900  -7 1502  RA3TNV RW3DW KO84
202900  -4 2544  RA3TNV R8FB R-06
202900 -10 1261  RA3TNV R1MA KO59
202930  -6 1502  RA3TNV RW3DW KO84
202930  -2 2544  RA3TNV R8FB 73
202930 -12 1261  RA3TNV R1MA KO59
203000 -10 2543  RA3TNV UA4CKN -16
203000  -7 1501  RA3TNV RW3DW KO84
203000  -9 1261  RA3TNV R1MA R-15
203030  -6 2543  RA3TNV UA4CKN -16
203030  -7 1502  RA3TNV RW3DW KO84
203030 -12 1261  RA3TNV R1MA 73
203100  -9 2544  RA3TNV UA4CKN -16
203100  -7 1502  RA3TNV RW3DW R-10 (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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