R8DX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: MO09

Receiver-side FT8 activity involving R8DX, decoded by SO8OO in southeastern Poland. 278 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-16.

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 278 FT8 messages attributed to R8DX as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (31%), followed by 20 m (29%) and 40 m (26%). Most decodes (70%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

278

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 8 80m · 85 40m · 73 20m · 80 10m · 32

First attributed message: 2026-06-06
Last attributed message: 2026-09-16 16:33 UTC

Observed FT8 message patterns

Attributed sample: 278 messages
Active dates: 21 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 94, strong (≥ -8 dB) 145.

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 R8DX in decoded directed-looking exchanges:

RG5A · European Russia ×2 TK5K · Corsica ×2 RM3ZR · European Russia ×2 9A4ZM · Croatia ×2 F6FDY · France LU8EX · Argentina LZ3SV · Bulgaria OH0ERF · Aland Islands SM3YRD · Sweden SP6FME · Poland DH8BQA · Fed. Rep. of Germany EW6FL · Belarus

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 R8DX

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: MO09 · 76 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,684 km (approx.)
Last such locator decoded: 2026-09-16 04:27 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	R8DX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 16:38	80m	- / -9	RK6MC	+4 / -	2	✓ Closing fragment
09-16 16:36	80m	- / -3	R3KLE	-5 / -	4	✓ Closing fragment
09-16 16:35	80m	- / -14	RA6BL	+2 / -	3	✓ Closing fragment
09-16 16:34	80m	- / -6	RU5X	-14 / -	2	Partial capture
09-16 16:31	80m	-24 / -4	RA6ZD	+8 / -14	6	✓ Full exchange observed
09-16 16:31	80m	- / -10	UA3QNA	+10 / -	3	✓ Closing fragment
09-16 16:27	80m	- / -11	UA4CKN	-13 / -	2	✓ Closing fragment
09-16 04:17	40m	-20 / -	RI1FJZ	- / -	4	Partial capture
09-13 03:33	40m	-10 / -	D44TWO	- / -	12	Partial capture
09-13 03:28	40m	-12 / -	D44TWO	- / -	3	Partial capture
09-12 18:53	40m	-4 / -	R6HV/P	- / -12	2	Partial capture
09-12 18:51	40m	-9 / -	UW5ESX	- / -3	3	✓ Closing fragment
09-12 18:50	40m	- / -	F5JQF	-6 / -	3	Partial capture
09-12 18:50	40m	- / -	R6HV/P	-12 / -	2	Partial capture
09-12 18:49	40m	0 / -	HG8LXL	- / -22	2	✓ Closing fragment
09-12 18:46	40m	- / -	UB6OCP	-12 / -	3	Partial capture
09-12 18:46	40m	-1 / -	HG8LXL	- / -14	2	Partial capture
09-12 18:45	40m	-4 / +3	OM1TD	-5 / -15	9	✓ Full exchange observed
09-12 18:44	40m	-6 / -	R3TAF	- / -15	2	✓ Closing fragment
09-12 18:09	80m	- / -1	UF6V/UA5D	-15 / -	2	Partial capture
09-12 18:09	80m	-5 / -	UB0SMX/P	- / -16	6	Partial capture
09-12 18:06	80m	-6 / +4	RN6HK	+14 / -1	6	✓ Full exchange observed
09-12 18:05	80m	-7 / -	OH5CY	+3 / -14	3	✓ Closing observed
09-12 18:03	80m	+5 / -12	OM3KFF	+7 / -15	3	✓ Full exchange observed
09-12 18:02	80m	- / +7	RA6LTD	-6 / -	2	Partial capture
09-12 17:58	80m	-8 / -	R6TA	- / -16	2	✓ Closing fragment
09-12 17:58	80m	-9 / -	UA3UBV	-9 / -	4	✓ Closing observed
09-12 17:54	80m	-10 / +3	UI6A	+5 / -8	6	✓ Full exchange observed
09-12 17:54	80m	-16 / -9	R6OAQ	-1 / -	4	✓ Closing observed
09-12 17:51	80m	-8 / -	UA3FO	-8 / -13	6	✓ Closing observed
09-12 17:51	80m	-12 / -9	EA6Y	-4 / -	5	✓ Closing observed
09-12 17:50	80m	- / -	UA3UBV	0 / -	2	Partial capture
09-12 17:49	80m	-11 / +8	RC2Y	-6 / -11	6	✓ Full exchange observed
09-12 17:47	80m	- / -	SV2AEL	+9 / -	6	Partial capture
09-12 17:47	80m	-8 / -6	RW6ATD	+5 / -8	9	✓ Full exchange observed
09-12 17:46	80m	-10 / -	R3RB	-4 / -7	3	✓ Closing observed
09-12 17:46	80m	-10 / -	RW0AE	- / -18	3	Partial capture
09-12 17:44	80m	- / -13	RC7LX	-13 / -	2	Partial capture
09-12 17:43	80m	-14 / -11	R6ZCE	-4 / -	7	✓ Closing observed
09-12 17:43	80m	-6 / -20	R6ZEJ	-5 / -	4	✓ Closing observed
09-12 17:40	80m	- / -4	RC6OZ	-6 / -	3	✓ Closing fragment
09-12 17:38	80m	- / -	HA2EOA	+8 / -	4	Partial capture
09-12 17:37	80m	-8 / -	UB0SMX/P	- / -7	2	✓ Closing fragment
09-12 17:37	80m	-8 / -3	UA3ZQN	+4 / -1	5	✓ Full exchange observed
09-12 17:36	80m	- / -1	RC3D	+10 / -	5	Partial capture
09-12 17:33	80m	-6 / -	OH1TK	- / -7	6	✓ Closing fragment
09-12 17:30	80m	+3 / -	BA5CW	- / -	2	Partial capture
09-12 17:22	80m	- / -16	OK1FRG	+7 / -	4	✓ Closing fragment
09-12 17:20	80m	-2 / -1	OZ1A	-8 / -	4	✓ Closing observed
09-05 18:37	80m	-5 / -3	R2HB	-12 / -5	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
163315 -24 1431  RA6ZD R8DX -14
163330  +6  499  R8DX RA6ZD R-04
163345 -23 1431  RA6ZD R8DX RR73
163400 -13 1431  R8DX RU5X KO84
163400  +7  499  R8DX RA6ZD 73
163430 -15 1431  R8DX RU5X R-06
163500  +1 1435  R8DX RA6BL KN95 (x3)
163600  -7 1782  R8DX R3KLE KO91 (x4)
163800  +3 1582  R8DX RK6MC R-09 (x2)

40m

UTC    dB Audio  Message
033530  -7  459  D44TWO R8DX MO09 (x9)
041315 -24 1969  RI1FJZ R8DX MO09 (x6)

160m

UTC    dB Audio  Message
175615 +13 2452  R8DX RY3K LO00
175615  +0 2300  R8DX RM3ZR 73
175645  +7 2452  R8DX RY3K R-09
175700 -24 1603  RY3K R8DX RR73
175715 +10 2452  R8DX RY3K 73
175900 +12  378  R8DX DH8BQA -07
175930  -2 1380  R8DX RK4FD LO22
175930 +15  378  R8DX DH8BQA RR73
175945 -24 1603  DH8BQA R8DX 73
180000  -4 1380  R8DX RK4FD LO22
180015 -17 1603  RK4FD R8DX +00
180030  -3 1380  R8DX RK4FD R+02
180130  +4 2299  R8DX RG7O KN88 (x2)
180230 -24 1642  R8DX R2ATY -13

10m

UTC    dB Audio  Message
172900 -13 1029  SP6FME R8DX RR73
173000 -12 1029  YU2LOM R8DX -11 (x3)
173200 -13 1029  F5MYK R8DX -10 (x3)
173600 -15 1029  LU8EX R8DX 73
173700 -12 1029  RG5A R8DX -07 (x2)
173830 -16 1029  LZ3SV R8DX RR73
174700 -13 1372  R8DX F6FDY JN33 (x4)

20m

UTC    dB Audio  Message
172945  -5 2248  G2RW R8DX -16 (x2)
173100  -4 2244  R8DX 9A4ZM JN86
173130 -15 2248  R8DX S51CC JN65
173200  -8 2244  R8DX 9A4ZM R-01 (x2)
173300 -15 2247  R8DX S51CC JN65
045145  -8  907  R8DX TI5RR -16 (x2)
050315  -9  767  R8DX RW4HB LO53
050630 -18 1056  R2FBW R8DX RR73
050700 -17 1056  OM0RX R8DX -05
051000 -10 1056  DL5MO R8DX R-20 (x3)

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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