RA6ZC — 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 RA6ZC, decoded by SO8OO in southeastern Poland. 709 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-09 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 709 FT8 messages attributed to RA6ZC as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (65%), followed by 20 m (14%) and 10 m (12%). Most decodes (55%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

709

Messages attributed

UTC dates decoded

119

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 65 40m · 461 20m · 100 10m · 83

First attributed message: 2026-06-09
Last attributed message: 2026-09-15 03:15 UTC

Observed FT8 message patterns

Attributed sample: 709 messages
Active dates: 40 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 151, moderate (-15 to -9 dB) 335, strong (≥ -8 dB) 223.

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 RA6ZC in decoded directed-looking exchanges:

R2GFD · European Russia ×2 R2HB · European Russia ×2 R3YAU · European Russia ×2 RX9WM · Asiatic Russia ×2 UA3SCF · European Russia ×2 DG2SAT · Fed. Rep. of Germany EA1CQ · Spain F4NLW/P · France G4DBW · England I8OCA · Italy IK4LZH · Italy IW3GJF · Italy

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 RA6ZC

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 · 277 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,257 km (approx.)
Last such locator decoded: 2026-09-15 03:14 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	RA6ZC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 03:14	40m	-6 / -	R1BDX	- / -14	3	✓ Closing fragment
09-15 03:13	40m	-2 / -	NA3M	- / -	2	Partial capture
09-13 21:06	40m	- / -14	HL2CFY	-11 / -	2	✓ Closing fragment
09-13 20:59	40m	- / -1	RX9WM	-14 / -	3	✓ Closing fragment
09-13 20:56	40m	-18 / +6	GJ0KYZ	-6 / -	3	✓ Closing observed
09-13 20:48	40m	-17 / -	HA3HA	- / -11	2	✓ Closing fragment
09-13 20:43	40m	-15 / +3	TA4SSK	-9 / -	5	✓ Closing observed
09-13 20:42	40m	- / -11	M0BEW	-7 / -	2	✓ Closing fragment
09-13 20:41	40m	- / -11	F6BHK	-6 / -	2	✓ Closing fragment
09-11 14:06	40m	-13 / -	R4CI	-16 / -2	4	✓ Closing observed
09-11 14:04	40m	-16 / -	UA3YGP	-6 / -5	3	✓ Closing observed
09-11 14:03	40m	-11 / -	UN0LK	- / -15	2	✓ Closing fragment
09-11 14:01	40m	-5 / -	RA3LJ	-10 / -	3	✓ Closing observed
09-07 19:51	40m	-4 / -6	R6PAG	-10 / -11	5	✓ Full exchange observed
09-07 19:43	40m	-5 / -	R6DZE	- / -19	2	Partial capture
09-07 19:41	40m	-6 / +1	RO7A	+4 / -7	4	✓ Full exchange observed
09-07 19:40	40m	-3 / +5	RK3YWA	-6 / -	4	✓ Closing observed
09-07 19:32	40m	-4 / -	UB3FBD	- / -13	3	✓ Closing fragment
09-03 02:22	40m	-6 / -	N4MC	- / -	2	Partial capture
08-31 23:44	40m	+7 / +2	UR7FM	-7 / -5	5	✓ Full exchange observed
08-31 23:41	40m	+1 / -9	G0JJL/P	-16 / -16	6	✓ Full exchange observed
08-31 19:08	40m	+1 / -	R3PJV	- / -	2	Partial capture
08-31 19:05	40m	-8 / -	R3UDU	- / -12	4	✓ Closing fragment
08-30 22:24	40m	- / -16	UB3AMO	+9 / -	2	✓ Closing fragment
08-30 22:23	40m	+6 / -	JE4JPQ	- / -13	2	✓ Closing fragment
08-30 22:18	40m	- / -9	EC3A	-11 / -	2	Partial capture
08-30 22:17	40m	-3 / -	G1HJW	- / -16	3	✓ Closing fragment
08-30 22:13	40m	+2 / -	XQ3MCC	- / -	2	Partial capture
08-30 22:03	40m	+5 / -	TT1GD	- / -17	2	✓ Closing fragment
08-30 22:01	40m	-1 / -	BA4II	- / -20	3	Partial capture
08-30 21:59	40m	+5 / -	VJ6X	- / -24	3	✓ Closing fragment
08-30 21:31	40m	-6 / -	RI1FJL	- / -13	6	✓ Closing fragment
08-25 19:14	20m	-5 / -6	RN2FQ	-8 / -13	3	✓ Full exchange observed
08-22 19:30	20m	-9 / -13	GU4WRP	+2 / -15	6	✓ Full exchange observed
08-22 19:24	20m	-5 / -	TL8GD	- / -17	5	Partial capture
08-22 15:17	20m	0 / -	<...>	- / -19	2	Partial capture
08-22 14:28	20m	-10 / -	R8CHY	- / -	2	Partial capture
08-22 13:34	20m	- / -8	UF4S/P	-10 / -	2	✓ Closing fragment
08-22 13:27	20m	-8 / -	R7ZY	- / -	2	Partial capture
08-22 13:18	20m	-8 / -	R3ES	- / -	3	Partial capture
08-22 13:15	20m	-9 / -16	R2EA/P	-6 / -	4	✓ Closing observed
08-22 13:13	20m	- / -12	OE7MAH	-2 / -	4	Partial capture
08-08 07:52	20m	-8 / 0	R2PX	-2 / -13	5	✓ Full exchange observed
08-08 07:51	20m	-5 / -	UA9LLE	- / -14	3	✓ Closing fragment
08-08 07:49	20m	-6 / -	UB3BCT	- / -	2	✓ Closing fragment
08-08 07:48	20m	-3 / -	R8CCI	- / -19	3	✓ Closing fragment
08-07 02:17	40m	-19 / -	UA9SY	- / -7	2	✓ Closing fragment
08-07 02:14	40m	-16 / -	WB4MNK	- / -16	2	✓ Closing fragment
08-07 02:13	40m	-13 / -	R4HLO	- / 0	2	✓ Closing fragment
08-06 18:39	40m	-10 / -	R6LMH	-24 / -13	5	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
205530  -9 1187  RA6ZC SV1DZB KM18
205630  -5 1187  RA6ZC GJ0KYZ +06 (x2)
205715 -18 1187  GJ0KYZ RA6ZC 73
205830 -14 1146  RA6ZC G0VUH 73
205930 -17 1192  RA6ZC RX9WM LO74 (x3)
210645 -13  562  RA6ZC HL2CFY -14 (x2)
031330  +0 1187  NA3M RA6ZC KN98 (x2)
031445  -8 1187  R1BDX RA6ZC KN98 (x3)

20m

UTC    dB Audio  Message
192445  -3 2032  TL8GD RA6ZC KN98 (x5)
192700  +1 2921  RA6ZC M1WLK IO82
193015 -10 2270  GU4WRP RA6ZC KN98
193030  +1 1134  RA6ZC GU4WRP -13
193045  -9 2270  GU4WRP RA6ZC R-15 (x3)
193200  +4 1134  RA6ZC GU4WRP RR73
191415  -9 2810  RA6ZC RN2FQ -06
191430  -5 2810  RN2FQ RA6ZC R-13
191445  -8 2809  RA6ZC RN2FQ RR73

80m

UTC    dB Audio  Message
181830  +0 2570  R2GFD RA6ZC RR73
181845  -2 2570  RA6ZC R2GFD 73
181900  -3 2463  CQ RA6ZC KN98
181915 -16 1381  RA6ZC UA1TAN -24
181930  -2 2463  CQ RA6ZC KN98
181945 -14  528  RA6ZC R9FF LO88
182030  -4 2463  CQ RA6ZC KN98
182045  -5 2462  RA6ZC DK7UY JO44 (x2)
182130  -9 1462  CQ RA6ZC KN98
182145  -8 2463  RA6ZC DK7UY JO44
182200 -12 1463  R2UC RA6ZC KN98
182215  -3 1840  RA6ZC R2AKN KO96
182230 -10 1463  R2UC RA6ZC KN98
182245  -8 1840  RA6ZC R2AKN KO96

10m

UTC    dB Audio  Message
075730 -10 1456  YB9GWR RA6ZC R-25 (x2)
075900 -15 1455  UK8FCM RA6ZC R-15
075915  -5 1890  RA6ZC R7DX KN84
075930  -4 1455  UK8FCM RA6ZC 73
075945  -9 1891  RA6ZC R7DX KN84 (x2)
080100  -7 1456  CQ RA6ZC KN98 (x4)
080300 -12 1456  R6TY RA6ZC R-01 (x2)
080400 -22 1456  BH8NNU RA6ZC -16 (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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