RA3GK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO92

Receiver-side FT8 activity involving RA3GK, decoded by SO8OO in southeastern Poland. 137 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-18.

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 137 FT8 messages attributed to RA3GK 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 (63%), followed by 20 m (25%) and 40 m (12%). Most decodes (80%) fell within the six-hour window 13:00-19:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was +1 dB.

Overview

137

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

80m · 86 40m · 17 20m · 34

First attributed message: 2026-06-13
Last attributed message: 2026-09-18 18:43 UTC

Observed FT8 message patterns

Attributed sample: 137 messages
Active dates: 6 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -15 to +13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 107.

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 RA3GK in decoded directed-looking exchanges:

ON1DGN · Belgium R1QF · European Russia R3UDU · European Russia RA3TRR · European Russia RK9DO · Asiatic Russia OH5D · Finland R2DVN · European Russia R2HB · European Russia R2HD · European Russia R3LCW · European Russia R4FBZ · European Russia R9FAK · 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 RA3GK

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: KO92 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,229 km (approx.)
Last such locator decoded: 2026-09-18 17:06 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	RA3GK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 17:09	40m	- / +9	R3UDU	-15 / -	4	✓ Closing fragment
09-18 17:07	40m	-3 / -	OH1LA	- / -4	3	Partial capture
09-18 17:07	40m	- / -	R1CF	-5 / -	4	Partial capture
09-18 17:07	40m	- / +1	RN6MA	+1 / -	4	Partial capture
09-14 15:30	80m	-18 / -	R9FAK	- / 0	3	✓ Closing fragment
09-14 15:30	80m	-18 / +5	R2PE	-11 / -	2	Partial capture
09-05 17:17	80m	+6 / -	R2HB	0 / -	3	✓ Closing observed
09-05 17:15	80m	+4 / -	R4FBZ	-13 / -9	3	✓ Closing observed
09-05 17:14	80m	+6 / +2	RA3TK	-11 / -3	4	✓ Full exchange observed
09-05 17:13	80m	+2 / 0	RQ3D	-17 / -11	4	✓ Full exchange observed
09-05 17:12	80m	- / -	UA9LLE	-20 / -	2	Partial capture
09-05 17:11	80m	- / -	RK8W	0 / -	2	Partial capture
09-05 17:10	80m	0 / +1	RA9CUU	+4 / -3	6	✓ Full exchange observed
09-05 17:09	80m	0 / -	RA3TK	-17 / -3	2	Partial capture
09-05 17:06	80m	+1 / -	RT3G	-10 / -11	3	✓ Closing observed
09-05 17:06	80m	+2 / -	UN7LEW	- / -15	2	✓ Closing fragment
09-05 17:04	80m	+2 / -	UB1CCL	-9 / -7	5	✓ Closing observed
09-05 17:04	80m	+2 / -	OH5D	-8 / -2	3	✓ Closing observed
09-05 17:03	80m	- / -	YL3AKH	-1 / -	5	Partial capture
09-05 17:02	80m	- / -	OK2RM	-20 / -	2	Partial capture
09-05 16:59	80m	+6 / -4	R3LCW	+6 / -	5	✓ Closing observed
09-05 16:57	80m	+8 / +1	RK6MC	-5 / +2	6	✓ Full exchange observed
09-05 16:57	80m	+4 / -	UA4FKT	0 / -	6	✓ Full exchange observed
09-05 16:54	80m	+4 / -	UA1OMS	- / -	6	Partial capture
09-05 16:08	80m	- / -	UB4FGK	-11 / -	5	Partial capture
09-05 16:06	80m	-7 / -	UA1OMS	- / -9	10	✓ Closing fragment
09-05 15:46	80m	- / -4	RZ6CO	-10 / -	3	Partial capture
09-05 15:44	80m	-10 / -	UA3SCU	-10 / -	4	✓ Full exchange observed
09-05 15:42	80m	-15 / -	RA3TKS	- / -3	2	✓ Closing fragment
09-05 15:40	80m	-18 / -	UB8A	- / +5	2	Partial capture
09-05 15:30	80m	- / -1	RX6DA	-14 / -	2	✓ Closing fragment
09-04 17:45	80m	+17 / -	R2DVN	+4 / 0	3	✓ Closing observed
09-04 17:45	80m	- / +7	RY3F	-2 / -	2	Partial capture
09-04 17:43	80m	+16 / +3	R2HD	-2 / +5	4	✓ Full exchange observed
09-04 17:40	80m	+19 / -	UA4CKN	-16 / -	2	✓ Closing observed
09-04 17:40	80m	+13 / -12	UA9FMT	-2 / -7	4	✓ Full exchange observed
09-04 17:39	80m	+15 / -3	YO4NT	+4 / +4	3	✓ Full exchange observed
09-04 16:11	40m	+8 / -	RK9DO	- / -10	2	✓ Closing fragment
09-04 16:10	40m	- / -	DK8QH	-6 / -	3	Partial capture
09-04 16:08	40m	- / -	RA4CGX	-8 / -	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
170730  -1 1840  RA3GK RN6MA +01
170730  -7  548  RA3GK R1CF KO59
170745  +1 1840  OH1LA RA3GK -04
170800  +1 1840  RA3GK RN6MA +01
170800  -5  548  RA3GK R1CF KO59
170815  -4 1840  OH1LA RA3GK -04
170830  +2 1840  RA3GK RN6MA +01
170830  -4  548  RA3GK R1CF KO59
170900 -16 1838  RA3GK R3UDU LO07
170915  +1 1839  ON1DGN RA3GK 73
170930 -15 1837  RA3GK R3UDU LO07 (x3)
171100  -1 1839  RA3GK RN6MA +12
184300  -6 1785  RA3TRR RA3GK 73

80m

UTC    dB Audio  Message
171545 -14 1794  RA3GK R6UBM LN36
171545 -13  937  RA3GK R4FBZ 73
171600  +4 1703  CQ RA3GK KO92                         a1 (x3)
171715  +1 1355  RA3GK R2HB +11 (x2)
171800  +6 1703  R2HB RA3GK 73
171830  +2 1703  CQ RA3GK KO92 (x2)
153015 -18 1703  R2PE RA3GK KO92
153030 -11 1632  RA3GK R2PE +05
153045 -17 1703  R9FAK RA3GK KO92 (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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