R1943OD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia

Receiver-side FT8 activity involving R1943OD, decoded by SO8OO in southeastern Poland. 7,997 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-09-04 and 2026-09-10.

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 7,997 FT8 messages attributed to R1943OD as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (14%) and 160 m (9%). The busiest six-hour window was 16:00-22:00 UTC, containing 42% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -3.6 dB.

Overview

7,997

Messages attributed

UTC dates decoded

337

Active 15-min windows

-3.6 dB

Estimated median S/N

Bands

160m · 681 80m · 1,156 40m · 6,159 10m · 1

First attributed message: 2026-09-04
Last attributed message: 2026-09-10 01:51 UTC

Observed FT8 message patterns

Attributed sample: 7,997 messages
Active dates: 7 UTC dates
Estimated median S/N: -3.6 dB
Estimated 10th-90th percentile: -18 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,359, moderate (-15 to -9 dB) 1,467, strong (≥ -8 dB) 5,171.

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 R1943OD in decoded directed-looking exchanges:

SX48JM · Greece ×19 Z335MK · North Macedonia ×10 EY35D · Tajikistan ×6 HF780C · Poland ×5 AO77R · Spain ×2 LY790A · Lithuania ×2 SP90K · Poland ×2 F5BZB · France RC9WC · Asiatic Russia SP9UPH · Poland UA1TAN · European Russia UA6AUA · 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.

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	R1943OD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 07:05	40m	- / -11	DL8ARJ	-11 / -	7	Partial capture
09-10 04:18	40m	- / -	R2DZP	+5 / -	4	Partial capture
09-10 02:53	40m	- / -	R7WA	-19 / -	3	Partial capture
09-10 02:50	40m	- / -	R7WA	-15 / -	3	Partial capture
09-10 02:33	40m	- / -	R7WA	-12 / -	15	Partial capture
09-10 01:59	40m	- / -	EA7JYN	-21 / -	7	Partial capture
09-09 18:48	40m	- / -12	UR5ZHJ	+6 / -	2	Partial capture
09-09 17:31	80m	+5 / -13	IK6GTF	-7 / -14	2	Partial capture
09-09 15:39	40m	- / -14	DL6ZOG	-5 / -	2	Partial capture
09-09 15:09	40m	- / +6	F5MKD	-2 / -	3	Partial capture
09-09 12:05	40m	- / -	DL1JEL	-4 / -	3	Partial capture
09-09 09:49	40m	- / -7	OE3DBX	-9 / -	2	Partial capture
09-09 08:57	40m	- / +5	SP9HAX	-9 / -	2	Partial capture
09-09 06:59	40m	- / -	<...>	-18 / -	2	✓ Closing fragment
09-09 06:48	40m	- / -	PE1NPS	-16 / -	2	Partial capture
09-09 06:30	40m	-16 / -	<...>	-12 / -	4	✓ Closing fragment
09-09 06:29	40m	-14 / -	R7RBE	- / -15	2	Partial capture
09-09 05:58	40m	- / -	DL5JW	-14 / -	2	Partial capture
09-09 05:50	80m	- / -2	DA1ST	-3 / -	3	Partial capture
09-09 05:48	40m	-16 / -	<...>	-5 / -	2	✓ Closing fragment
09-09 05:40	80m	- / +4	ES6DO	-14 / -	5	Partial capture
09-09 05:34	40m	-13 / -	<...>	-16 / -	2	✓ Closing fragment
09-09 05:31	40m	- / -	DG1YHP	-7 / -	3	Partial capture
09-09 05:25	40m	- / -	DG1YHP	-11 / -	2	Partial capture
09-09 05:20	80m	- / -	SQ8N	+17 / -	2	Partial capture
09-09 05:12	40m	-12 / -	<...>	- / -	4	Partial capture
09-09 04:18	40m	- / -	EA5GGU	-22 / -	2	Partial capture
09-09 04:02	40m	-8 / -	<...>	-1 / -	3	✓ Closing fragment
09-09 04:01	40m	-6 / +6	UA3WG	-1 / -16	6	Partial capture
09-09 03:57	40m	-3 / -	<...>	- / -	2	✓ Closing fragment
09-09 03:43	40m	- / -17	RK9UE	-8 / -	3	Partial capture
09-09 03:34	40m	-4 / -	<...>	-3 / -	2	✓ Closing fragment
09-09 03:29	40m	0 / -	<...>	+3 / -	2	✓ Closing fragment
09-09 02:54	40m	- / +2	YO6GLT	-11 / -	3	Partial capture
09-09 02:45	80m	- / -	W4IPC	-14 / -	4	Partial capture
09-09 02:00	80m	- / -15	EW6BZ	0 / -	2	Partial capture
09-09 01:45	40m	-6 / -	<...>	- / -	2	Partial capture
09-09 01:31	80m	- / -1	9A3AUH	+9 / -	2	Partial capture
09-09 01:09	40m	-20 / -	<...>	- / -	3	Partial capture
09-09 00:22	40m	-18 / -	RW0AE	- / -18	3	Partial capture
09-08 23:58	80m	- / -3	GM4KHE	-20 / -	2	Partial capture
09-08 23:54	40m	-15 / -	<...>	-23 / -	2	✓ Closing fragment
09-08 23:37	80m	- / -6	W4IPC	-13 / -	4	Partial capture
09-08 23:07	40m	-13 / -	<...>	- / -	3	Partial capture
09-08 23:05	40m	-15 / -	UA9SY	- / -22	3	Partial capture
09-08 22:12	40m	-14 / -	<...>	0 / -	2	✓ Closing fragment
09-08 22:08	40m	-14 / -	DB4KBR	- / -11	2	Partial capture
09-08 21:46	40m	- / +5	F5SJC	-12 / -	7	Partial capture
09-08 21:28	80m	- / -18	YO6KNZ	0 / -	2	Partial capture
09-08 21:21	80m	- / -15	ON4CMT	+2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
025430 -17 1862  R1943OD R7WA LN32 (x2)
034230 -16  850  R1943OD DD1OO JN49
041830  +1  851  R1943OD R2DZP KO85 (x4)
061115 -16 1772  R1943OD EA5BM IM99
070545 -10 1859  R1943OD DL8ARJ JO50 (x7)

80m

UTC    dB Audio  Message
052015 +16 2347  R1943OD SQ8N KO00 (x3)
054045 -15 2352  R1943OD ES6DO KO27 (x5)
055015  -3 1374  R1943OD DA1ST R-02
055045  +4 1703  R1943OD OM0MR R+03
055145  -3 1374  R1943OD DA1ST R-02 (x2)
153030 -18 1280  R1943OD DF4JH -12
173115  +5 1291  IK6GTF R1943OD -14
173130  -7 1292  R1943OD IK6GTF R-13

160m

UTC    dB Audio  Message
185815 +10 2349  R7IA R1943OD R+01
185830  -7 1150  R1943OD <...> RR73
185845 +13 2349  <...> R1943OD 73
193815 +10 1241  R1943OD SP9UPH R+03
194245  +7  995  R1943OD SP9CLQ KO00 (x3)
195515 -10 2461  R1943OD SP6FEK KN09
195615 -11 2243  R1943OD IK0XBX JN63
195645 -17 2461  R1943OD SP6FEK KN09
195645  -9 2242  R1943OD IK0XBX R-10
195715 -14 2460  R1943OD SP6FEK R+20
223000 -11 2669  R1943OD UN8FR MO82
182345  -8 2358  R1943OD R2EA -13 (x2)

10m

UTC    dB Audio  Message
100500 -23 1997  CQ R1943OD

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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