RX7O — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN98

Receiver-side FT8 activity involving RX7O, decoded by SO8OO in southeastern Poland. 2,087 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 66 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-04.

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 2,087 FT8 messages attributed to RX7O as the transmitting token by decoded message structure across 66 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (48%), followed by 20 m (30%) and 10 m (20%). The busiest six-hour window was 15:00-21:00 UTC, containing 48% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -3.2 dB.

Overview

2,087

Messages attributed

UTC dates decoded

227

Active 15-min windows

-3.2 dB

Estimated median S/N

Bands

160m · 45 80m · 8 40m · 994 20m · 616 10m · 424

First attributed message: 2026-06-07
Last attributed message: 2026-10-04 19:10 UTC

Observed FT8 message patterns

Attributed sample: 2,087 messages
Active dates: 66 UTC dates
Estimated median S/N: -3.2 dB
Estimated 10th-90th percentile: -13.2 to +7.8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 147, moderate (-15 to -9 dB) 378, strong (≥ -8 dB) 1,562.

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 RX7O in decoded directed-looking exchanges:

IU0VOG · Italy ×2 R2EA/P · European Russia ×2 R2HM · European Russia ×2 RN7A · European Russia ×2 DH2RL · Fed. Rep. of Germany ×2 IK4LZH · Italy ×2 SV9MBH · Crete ×2 HA3GX · Hungary ×2 ON4ASV · Belgium ×2 R1QF · European Russia ×2 R4FD · European Russia ×2 R8QA · Asiatic Russia ×2

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 RX7O

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: KN98 · 925 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,257 km (approx.)
Last such locator decoded: 2026-10-04 19:10 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	RX7O S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 19:09	40m	- / -15	F4IFO	0 / -	5	✓ Closing fragment
10-02 14:21	40m	- / -	DG2LMW	-6 / -	2	Partial capture
10-01 19:26	40m	-10 / -	IN3IZQ	-2 / -9	10	Partial capture
10-01 19:24	40m	-4 / -16	ON4ASV	+10 / -4	5	✓ Full exchange observed
10-01 19:20	40m	-12 / -	PA2IPA	-11 / -13	5	✓ Closing observed
10-01 16:56	40m	-2 / -24	R7OV	+2 / -10	7	✓ Full exchange observed
10-01 16:54	40m	-4 / -19	F4MXT/P	-1 / -10	6	✓ Full exchange observed
10-01 16:53	40m	0 / -	UA4SJB	- / -5	2	✓ Closing fragment
10-01 16:51	40m	0 / -8	ON4ASV	+17 / +1	7	Partial capture
10-01 16:48	40m	- / -3	LY2BSW	+1 / -	3	✓ Closing fragment
10-01 16:46	40m	- / -6	RU4SO	-8 / -	2	✓ Closing fragment
10-01 16:42	40m	-6 / -	LZ3AI	- / -6	2	✓ Closing fragment
09-30 15:59	40m	+4 / -	R4FD	-17 / +3	4	✓ Full exchange observed
09-30 15:58	40m	0 / -	R9FGJ	- / -6	2	✓ Closing fragment
09-30 15:53	40m	+2 / 0	R3YK	-5 / +5	5	✓ Full exchange observed
09-30 15:52	40m	+1 / -14	RU3DOK	-11 / -	8	✓ Closing observed
09-30 15:51	40m	+2 / -	R8QA	- / -6	2	✓ Closing fragment
09-30 15:50	40m	+2 / -	IU5VLR	-12 / -13	3	✓ Closing observed
09-30 15:49	40m	-1 / -2	RO3R	-4 / -	3	✓ Closing observed
09-30 15:47	40m	- / -	ON7GB	+9 / -	2	Partial capture
09-30 15:45	40m	+7 / -	TA7MMI	-2 / -	3	✓ Closing observed
09-30 15:39	40m	+8 / -	JR8EID	- / -15	2	✓ Closing fragment
09-30 15:38	40m	+10 / -16	UA6BGM	-2 / -	3	✓ Closing observed
09-30 15:22	40m	-2 / -2	R1QF	-8 / +4	5	✓ Full exchange observed
09-30 15:22	40m	0 / -	R1BQR	- / -	2	✓ Closing fragment
09-30 15:17	40m	+2 / -	F4MXT/P	-4 / -16	4	Partial capture
09-30 15:16	40m	-2 / -	R9JDA	- / -18	2	✓ Closing fragment
09-30 15:15	40m	+1 / -16	RA6MQ	+3 / -3	6	✓ Full exchange observed
09-30 15:12	40m	+1 / -	R6ADH	- / +3	2	✓ Closing fragment
09-25 04:07	40m	- / -	IW0RLC	-5 / -	13	Partial capture
09-25 04:06	40m	-8 / -	PD4RJ	- / -12	2	✓ Closing fragment
09-25 04:01	40m	-2 / -	DL/PG1N	- / -7	2	Partial capture
09-25 04:01	40m	-2 / -4	YO9PH	-16 / -	3	✓ Closing observed
09-25 03:59	40m	- / -	IU1HGN	0 / -	3	Partial capture
09-25 03:57	40m	-6 / -	UA9LAO	- / -7	2	✓ Closing fragment
09-25 03:56	40m	-10 / -	SV9MBH	- / -4	2	✓ Closing fragment
09-25 03:54	40m	-8 / -	RN7A	- / -9	2	✓ Closing fragment
09-22 20:24	80m	- / -	LZ1ZF	-18 / -	2	Partial capture
09-22 20:12	80m	+1 / -12	ON4ASV	+6 / -8	3	✓ Full exchange observed
09-22 20:03	160m	- / -	UA3LID	0 / -	3	Partial capture
09-22 20:02	160m	- / -	IK6GPZ	-5 / -	4	Partial capture
09-22 20:01	160m	-2 / -15	UA3ZSI	-6 / -	4	✓ Closing observed
09-22 20:00	160m	- / -	R2PT	-9 / -	2	Partial capture
09-22 19:57	160m	-6 / -13	R2EA/P	-11 / -20	3	✓ Full exchange observed
09-22 19:49	160m	- / -	IK6GPZ	-10 / -	9	Partial capture
09-22 19:45	160m	0 / +9	R6DSW	0 / +1	5	✓ Full exchange observed
09-22 19:43	160m	+6 / -2	HA7XL	+19 / -17	5	✓ Full exchange observed
09-22 19:41	160m	-4 / -	RW2Z	-9 / -6	3	✓ Closing observed
09-22 19:39	160m	0 / -9	UA1TAN	-15 / -20	5	✓ Full exchange observed
09-22 19:39	160m	-2 / -16	RN7A	-17 / -13	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
193000  +1  716  RX7O IN3IZQ JN56
142100  -3  955  RX7O DG2LMW JO61 (x2)
190530  -4 1578  RX4SA RX7O -03
190700 -15 1578  CQ RX7O KN98 (x3)
190915  -2  887  RX7O F4IFO JN29
190930 -11 1579  OE5ABL RX7O R-08
190945  -1  887  RX7O F4IFO JN29
191000 -10 1579  CQ RX7O KN98
191015  +1  886  RX7O F4IFO JN29 (x3)
191445 -22 1073  RX7O RA4FUP -18

80m

UTC    dB Audio  Message
022530 +12  404  RX7O Z62NS R-10
022545  -6  404  Z62NS RX7O RR73
022600  +8  404  RX7O Z62NS 73
023130 -23 2261  EA3AKY RX7O -08 (x2)
023215  -6 2262  RX7O EA3AKY 73
201145  -8 2353  RX7O IQ4JO JN63
201200  +1  665  ON4ASV RX7O -08
201245  +8  666  RX7O ON4ASV R-12 (x2)
201400  -2  666  R2PT RX7O RR73
201430  -3  666  CQ RX7O KN98
201915 -15  661  RI1FJZ RX7O -13
202415 -24 1249  RX7O LZ1ZF KN22 (x2)

160m

UTC    dB Audio  Message
200045  -2  397  CQ RX7O KN98
200130  -3 2036  RX7O UA3ZSI KO90 (x2)
200215  -2  397  UA3ZSI RX7O RR73
200230  -6 2036  RX7O UA3ZSI 73
200230  -6 1358  RX7O IK6GPZ JN62
200245  -3  397  CQ RX7O KN98
200300  -1 1871  RX7O UA3LID KO64
200300  -2 1358  RX7O IK6GPZ JN62
200315  -3  397  CQ RX7O KN98
200330  +4 1871  RX7O UA3LID KO64
200330 -13  942  RX7O R2PT KO84
200330  -7 1358  RX7O IK6GPZ JN62
200400  -2 1871  RX7O UA3LID KO64
200400  -5 1358  RX7O IK6GPZ JN62

20m

UTC    dB Audio  Message
023830  -6  832  RX7O <...> R+11
025600 -21 1584  RX7O RW9UBP 73
032915  +2  434  RX7O EX8QD MN82 (x3)
033130  -8  437  CQ RX7O KN98
033200  -9  435  KJ1R RX7O -09 (x3)
033345 -13 2169  RX7O 5Z4VJ KI88
033400 -15  436  5Z4VJ RX7O -01
033415 -19 2168  RX7O 5Z4VJ R-01
033430  -8  437  5Z4VJ RX7O RR73
033445 -14 2167  RX7O 5Z4VJ 73
033500 -15  437  CQ RX7O KN98                          a1

10m

UTC    dB Audio  Message
172745  -5  743  PY5TD RX7O -07
172815 -10  744  RG5G RX7O -07
172915  -7  744  R2GCV RX7O RR73
172945  -8  745  CQ RX7O KN98                          a1 (x4)
173230  -5  746  SV7BVM RX7O -05 (x2)
173400  -3  747  RG3M RX7O -14 (x2)
173645 -16 2281  PU2UJB RX7O -14
095745  -8 1914  RX7O RK6AH KN94 (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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