RK3AGG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO86

Receiver-side FT8 activity involving RK3AGG, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-23 and 2026-09-12.

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 38 FT8 messages attributed to RK3AGG as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (61%); the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

40m · 38

First attributed message: 2026-07-23
Last attributed message: 2026-09-12 21:09 UTC

Observed FT8 message patterns

Attributed sample: 38 messages
Active dates: 3 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -19 to -12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 1.

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 RK3AGG in decoded directed-looking exchanges:

RA3QQI · European Russia F1ODM · France S57FF · Slovenia DJ0MAB · Fed. Rep. of Germany DL1HTB · Fed. Rep. of Germany DL7ACA · Fed. Rep. of Germany EA3EDU · Spain EX7CQ · Kyrgyzstan LA1KUA · Norway LB7ZG · Norway LZ1ZF · Bulgaria MI5ERE · Northern Ireland

Most frequent locator attributed to RK3AGG

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: KO86 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,244 km (approx.)
Last such locator decoded: 2026-09-12 21:07 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	RK3AGG S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 21:06	40m	-14 / -17	PA3EWP	+4 / -	5	✓ Closing observed
09-12 21:02	40m	- / -16	DL7ACA	+3 / -	3	✓ Closing fragment
09-12 20:58	40m	- / -16	PA3FEX	-7 / -	2	✓ Closing fragment
09-05 22:03	40m	-12 / -	OU7K/P	- / -	2	Partial capture
09-05 21:59	40m	-16 / -	EA3EDU	0 / -15	6	✓ Closing observed
09-05 21:58	40m	-15 / -	MW9LQA	- / -3	3	✓ Closing fragment
09-05 21:55	40m	-16 / -	MI5ERE	-7 / -	3	✓ Closing observed
09-05 21:49	40m	-13 / -	G7RCQ	- / -10	3	Partial capture
09-05 21:47	40m	-18 / -9	OZ8MW	-4 / -4	3	Partial capture
09-05 21:43	40m	-14 / -3	DL1HTB	-13 / -	4	✓ Closing observed
09-05 21:38	40m	-16 / -	SP6FME	- / -4	2	✓ Closing fragment
09-05 21:35	40m	- / -2	EX7CQ	+2 / -	2	✓ Closing fragment
08-27 20:50	40m	- / -	YL3NU	-14 / -	4	Partial capture
08-27 20:50	40m	- / -9	DH0GBC	+3 / -	8	Partial capture
07-24 20:07	20m	- / -8	F1ODM	-4 / -	2	Partial capture
07-24 20:02	20m	- / -3	S57FF	0 / -	3	✓ Closing fragment
07-23 21:53	40m	- / -	DJ0MAB	-12 / -	4	✓ Closing fragment
07-23 21:48	40m	- / -10	LB7ZG	-5 / -	2	✓ Closing fragment
07-23 21:37	40m	- / -2	R7CD	-1 / -	2	✓ Closing fragment
07-23 21:28	40m	- / -12	LZ1ZF	-12 / -	2	✓ Closing fragment
07-23 21:20	40m	- / -	RA5CO	-10 / -	2	✓ Closing fragment
07-18 19:56	10m	- / +4	RA3QQI	-9 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
220445 -12 1763  OU7K/P RK3AGG KO86
220515 -13 1763  CQ RK3AGG KO86
221315 -19 1817  SM7DXE RK3AGG KO86
221345 -19 1817  CQ RK3AGG KO86
205845  -8  265  RK3AGG PA3FEX -16 (x2)
210215  +1 1753  RK3AGG DL7ACA R-16 (x3)
210630 -12 1753  PA3EWP RK3AGG KO86
210700  -8 1753  CQ RK3AGG KO86
210745  +2 2269  RK3AGG PA3EWP -17 (x3)
210900 -15 1753  PA3EWP RK3AGG 73

20m

UTC    dB Audio  Message
200215  +1 1246  RK3AGG S57FF JN76 (x3)
200715  -3 1247  RK3AGG F1ODM -08 (x3)
192630 +12  996  RK3AGG F6CCS -05

10m

UTC    dB Audio  Message
195630  -7 1502  RK3AGG RA3QQI +04 (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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