R7DN — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN96

Receiver-side FT8 activity involving R7DN, decoded by SO8OO in southeastern Poland. 86 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-31.

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 86 FT8 messages attributed to R7DN as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (44%), followed by 160 m (31%) and 40 m (19%). Most decodes (66%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 27 80m · 38 40m · 16 10m · 5

First attributed message: 2026-06-10
Last attributed message: 2026-10-31 02:06 UTC

Observed FT8 message patterns

Attributed sample: 86 messages
Active dates: 6 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -20 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 48.

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 R7DN in decoded directed-looking exchanges:

RK6OV · European Russia RM5F · European Russia UD8S · Asiatic Russia UN0GY · Kazakhstan R5AV · European Russia RD3FY · European Russia SP9YGD · Poland SV5BYP · Dodecanese UA9SY · Asiatic Russia BH1VLK · China DO5PY · Fed. Rep. of Germany F4CTJ · 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 R7DN

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: KN96 · 37 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,328 km (approx.)
Last such locator decoded: 2026-10-31 02:02 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	R7DN S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 02:02	80m	-5 / -	UK8FCM	- / -13	2	Partial capture
10-31 01:57	80m	-5 / +1	F4CTJ	-4 / -5	7	✓ Full exchange observed
10-31 01:57	80m	-4 / +8	RL3QGD	-13 / -	6	✓ Closing observed
10-31 01:57	80m	0 / -5	YU6DX	+2 / -	3	✓ Closing observed
10-31 01:55	160m	- / -	R1AV	-22 / -	2	Partial capture
10-31 01:54	160m	+10 / -3	UD8S	-24 / +2	3	✓ Full exchange observed
10-31 01:53	160m	+5 / -	RK6OV	-24 / -10	3	✓ Closing observed
10-30 00:38	160m	-6 / -	UN0GY	- / -21	2	✓ Closing fragment
10-30 00:24	80m	-12 / -10	DO5PY	+1 / -11	5	✓ Full exchange observed
10-30 00:23	80m	-10 / -	G0HSP	- / -17	2	✓ Closing fragment
10-30 00:14	40m	-6 / -	RD3FY	- / -2	2	✓ Closing fragment
10-30 00:12	40m	-16 / -	R5AV	-20 / -15	3	✓ Closing observed
10-29 17:47	40m	- / -	M1DBB	-8 / -	2	Partial capture
10-29 17:36	40m	- / -	RD3FY	0 / -	4	Partial capture
10-29 17:22	80m	-8 / -	RA7Z	- / +3	2	✓ Closing fragment
10-29 17:21	80m	-8 / -	BH1VLK	- / -18	2	✓ Closing fragment
10-29 17:13	80m	-6 / -5	IK3TZB	+2 / -	11	✓ Closing observed
10-29 17:13	80m	-6 / -	R2HD	-17 / 0	3	✓ Closing observed
10-29 17:10	80m	-2 / -	R1LP	-24 / -10	3	✓ Closing observed
10-28 05:47	40m	-22 / -	UA9SY	- / -8	2	✓ Closing fragment
10-28 05:42	40m	-16 / -	SP9YGD	- / -11	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
015900  -5 2014  F4CTJ R7DN RR73
015915  -4 1634  R7DN F4CTJ 73
015930  +4 2014  CQ R7DN KN96
015945  +3 1426  R7DN YU6DX -07
015945 -12 2015  R7DN RL3QGD KO91 (x2)
020030  +0 1839  YU6DX R7DN 73
020045 -11 2015  R7DN RL3QGD KO91 (x2)
020130  -4 1839  RL3QGD R7DN RR73
020200  -7 1839  CQ R7DN KN96
020230  -5 1839  UK8FCM R7DN R-13 (x2)
020330  -7 1838  NM6V R7DN -15
020615  -7 1839  A92AE R7DN -11

160m

UTC    dB Audio  Message
004715 -22 1279  CQ R7DN KN96 (x2)
014930 -17 1988  R7DN EC1AIJ -17
015300  +0  442  CQ R7DN KN96
015330  -1  442  RK6OV R7DN -10 (x2)
015415 -24 1584  R7DN UD8S -03
015415 -24 1343  R7DN RK6OV 73
015430 +10  442  UD8S R7DN R+02 (x2)
015530  +8  363  CQ R7DN KN96
015545 -24  363  R7DN R1AV KP50
015600  +8  363  CQ R7DN KN96
015615 -20  363  R7DN R1AV KP50
015630  +5  883  CQ R7DN KN96

40m

UTC    dB Audio  Message
054600 -20 1996  CQ R7DN KN96                          a1
054730 -20 1996  UA9SY R7DN -08 (x2)
173645  -6 2884  R7DN RD3FY KO85 (x4)
174600  -6 2151  R7DN UB3ZKO KO80
174730  -9 2478  R7DN M1DBB IO94 (x2)
001230 -11 1954  R5AV R7DN R-15
001245 -20 1954  R7DN R5AV RR73
001300 -20 1954  R5AV R7DN 73
001400  -3 1954  RD3FY R7DN -02 (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.

CW

1 CW reception events in the last 30 days.

40m: 1 events; last heard 2026-10-29 23:26 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-10-29 23:26:59	40m	7008.531	4.4 dB	—	WebSDR ↗

CW reception history

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