RN7B — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN85

Receiver-side FT8 activity involving RN7B, decoded by SO8OO in southeastern Poland. 512 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 47 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-15.

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 512 FT8 messages attributed to RN7B as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (55%), followed by 10 m (19%) and 40 m (13%). The busiest six-hour window was 14:00-20:00 UTC, containing 43% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

512

Messages attributed

UTC dates decoded

114

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 5 80m · 61 40m · 64 20m · 284 10m · 98

First attributed message: 2026-06-07
Last attributed message: 2026-09-15 16:59 UTC

Observed FT8 message patterns

Attributed sample: 512 messages
Active dates: 47 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 99, moderate (-15 to -9 dB) 191, strong (≥ -8 dB) 222.

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 RN7B in decoded directed-looking exchanges:

EA8UP · Canary Islands HK3W · Colombia JY5IB · Jordan LZ1VL · Bulgaria LZ4VR · Bulgaria PU1KPS · Brazil PU5WDB · Brazil R3DMS · European Russia R3HH · European Russia R3IDH · European Russia R3KLE · European Russia RA1AOB · 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 RN7B

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: KN85 · 215 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,237 km (approx.)
Last such locator decoded: 2026-09-15 16:59 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	RN7B S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 16:59	40m	-1 / -12	OZ7CL	-3 / -	4	✓ Closing observed
09-14 19:51	80m	-13 / -1	UA3PTK	-8 / -8	5	✓ Full exchange observed
09-10 04:06	40m	-17 / -	PV8AJ	- / -	3	Partial capture
09-05 03:16	40m	-8 / -	N8HRZ	- / -	2	Partial capture
09-05 03:11	40m	-4 / -	OA4ENG	- / -13	6	✓ Closing fragment
09-04 19:37	160m	-12 / -12	EW8W	+13 / -	3	✓ Closing observed
09-04 19:35	160m	-15 / -	SV2AEL	- / -	2	Partial capture
08-31 19:34	80m	- / -13	OH3NXW	+12 / -	2	✓ Closing fragment
08-31 19:27	80m	-12 / -5	YO5QDI	+4 / -7	5	✓ Full exchange observed
08-31 19:21	40m	-11 / -20	HA1UA	+2 / -15	5	✓ Full exchange observed
08-31 19:19	40m	-7 / -5	RA2FKD	+6 / -10	5	✓ Full exchange observed
08-31 18:58	20m	-9 / -15	DL0BSO	+1 / -13	3	✓ Full exchange observed
08-31 18:56	20m	- / -	GW3TYI	-10 / -	2	✓ Closing fragment
08-31 18:54	20m	-2 / -	R9FDM	- / -8	4	✓ Closing fragment
08-23 13:56	20m	- / -	PF1B	-14 / -	3	Partial capture
08-23 13:53	20m	-3 / -1	R1QAM	-12 / -14	5	✓ Full exchange observed
08-23 13:50	20m	- / -	M0PFX	-6 / -	3	Partial capture
08-23 13:50	20m	+10 / +5	R3WDW	-10 / -	3	✓ Closing observed
08-23 09:30	20m	-5 / -	SV1EGE	- / -12	2	✓ Closing fragment
08-23 09:28	20m	+2 / -	SM0EJR	-6 / -9	3	Partial capture
08-23 09:27	20m	-4 / -	TT1GD	- / -19	2	Partial capture
08-22 07:57	10m	- / -	F4IDN	-6 / -	2	Partial capture
08-22 07:49	10m	-18 / -	SV9MBL	- / -	3	Partial capture
08-22 07:06	20m	-4 / -	R1BED	- / -4	2	Partial capture
08-22 07:05	20m	-2 / -	UA3IDQ	- / -20	2	✓ Closing fragment
08-22 07:03	20m	+3 / -	WA1SXK	- / -22	3	✓ Closing fragment
08-22 07:01	20m	-11 / -	HA0NDN	- / -7	2	✓ Closing fragment
08-22 06:59	20m	0 / -	SV9MBL	- / -16	2	Partial capture
08-22 06:57	20m	+3 / -24	S50R	+9 / -4	4	✓ Full exchange observed
08-22 06:55	20m	-2 / -	OE1KTU	- / -13	3	✓ Closing fragment
08-21 18:09	80m	-8 / -14	<...>	-3 / -9	2	Partial capture
08-21 18:07	80m	-4 / -10	RY3F	0 / -7	6	✓ Full exchange observed
08-21 18:01	40m	- / -14	RK1N	-2 / -	2	✓ Closing fragment
08-21 17:57	40m	-4 / 0	R3ICU	-13 / -	2	Partial capture
08-21 17:56	40m	-6 / -	R0AH	- / -13	3	✓ Closing fragment
08-21 17:54	40m	-5 / -	TA7MZ	-22 / -	3	✓ Closing observed
08-21 17:52	40m	-4 / -	EX8ABQ	- / -8	2	✓ Closing fragment
08-19 18:25	80m	-10 / -1	RA7M	+1 / 0	4	✓ Full exchange observed
08-19 18:22	80m	-8 / -	YO8BBU	+8 / -	3	✓ Closing observed
08-18 18:01	40m	-22 / -	UA4SN	- / -8	2	✓ Closing fragment
08-17 18:36	10m	-20 / -	PU1PCR	- / -	2	Partial capture
08-17 17:58	10m	-14 / -	PU5WDB	- / -26	4	✓ Closing fragment
08-17 17:56	10m	-15 / -	PY1BE	- / -	3	Partial capture
08-17 14:02	20m	- / -9	9A3K	+9 / -	4	Partial capture
08-17 13:58	20m	-5 / -	HA5KY	- / -	2	✓ Closing fragment
08-17 13:56	20m	-16 / +10	YU2MS	-21 / -6	4	Partial capture
08-17 13:54	20m	+1 / -	F4HTA	- / -8	3	✓ Closing fragment
08-17 13:53	20m	-13 / -	ON4FHM	- / -13	3	✓ Closing fragment
08-16 08:18	20m	- / -11	UA6YEX	-13 / -	2	✓ Closing fragment
08-14 19:29	80m	-2 / -	RW3YS	- / -	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
031145  -4 2010  OA4ENG RN7B R-13 (x5)
031600  -3  811  KE8WHI RN7B KN85
031645  -9 2125  N8HRZ RN7B KN85 (x2)
040645 -17 1318  PV8AJ RN7B KN85 (x3)
165915  +0  292  OZ7CL RN7B KN85 (x2)
170000  -3  319  RN7B OZ7CL -12 (x2)

80m

UTC    dB Audio  Message
192700 -12  872  YO5QDI RN7B KN85
192715  +6  899  RN7B YO5QDI -05
192730 -13  871  YO5QDI RN7B R-07
192745  +2  899  RN7B YO5QDI RR73
192800 -11  871  YO5QDI RN7B 73
193230 -10 1609  SM6YRB RN7B KN85
193415 +15 2696  RN7B OH3NXW -13 (x2)
194400  +5  700  RN7B SV8JE -08
195145 -20 1614  UA3PTK RN7B KN85
195200  -7 1640  RN7B UA3PTK -01
195215 -10 1614  UA3PTK RN7B R-08
195230  -8 1640  RN7B UA3PTK RR73
195245 -10 1614  UA3PTK RN7B 73
195315  +0  721  UG3B RN7B KN85

160m

UTC    dB Audio  Message
193700 -23 1844  RA6MQ RN7B KN85
193400 -19 2120  RO7A RN7B KN85
193515 -17 2484  SV2AEL RN7B KN85 (x2)
193715 -12  922  EW8W RN7B KN85
193730 +13  949  RN7B EW8W -12 (x2)

20m

UTC    dB Audio  Message
135400 -11 2070  RN7B R1QAM RR73
135415  +3 2043  R1QAM RN7B 73
135615 -14  994  RN7B PF1B JO22 (x3)
185430  -9  431  R9FDM RN7B KN85 (x4)
185645 -11 1008  RN7B GW3TYI IO81 (x2)
185800 -12  890  DL0BSO RN7B -13
185815  +1  917  RN7B DL0BSO R-15
185830  -6  890  DL0BSO RN7B RR73
185900 -12 1848  OY5T RN7B KN85

10m

UTC    dB Audio  Message
175915 -13 1179  PU5WDB RN7B KN85 (x3)
181830 -22 2102  PY2EDU RN7B KN85
181930 -14  796  CA3SQH RN7B R-18
183600 -13 1057  PY2KQ RN7B KN85
183645 -20 1473  PU1PCR RN7B KN85 (x2)
074900 -17 1533  SV9MBL RN7B KN85 (x3)
075130 -13 1084  S59MA RN7B KN85
075230 -18 1418  SP9QLP RN7B R-05
075715  -6 2594  RN7B F4IDN IN97 (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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