R4NDG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO48

Receiver-side FT8 activity involving R4NDG, decoded by SO8OO in southeastern Poland. 351 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-15.

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 351 FT8 messages attributed to R4NDG as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (89%), followed by 40 m (11%). Most decodes (85%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +5 dB.

Overview

351

Messages attributed

UTC dates decoded

Active 15-min windows

+5 dB

Estimated median S/N

Bands

40m · 38 20m · 313

First attributed message: 2026-06-06
Last attributed message: 2026-08-15 16:04 UTC

Observed FT8 message patterns

Attributed sample: 351 messages
Active dates: 22 UTC dates
Estimated median S/N: +5 dB
Estimated 10th-90th percentile: -8 to +14 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 324.

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 R4NDG in decoded directed-looking exchanges:

9A6NTK · Croatia IQ4JO · Italy RY7G · European Russia 9A4ZM · Croatia A71UN · Qatar RC3D · European Russia SM2OTU · Sweden

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 R4NDG

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: LO48 · 259 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,989 km (approx.)
Last such locator decoded: 2026-08-15 16:02 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	R4NDG S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-15 16:03	20m	-8 / -	YO5PHL	- / -17	2	Partial capture
08-01 18:21	20m	- / -4	RY7G	+5 / -	2	✓ Closing fragment
07-31 19:46	40m	-9 / +3	A71UN	-12 / -	4	✓ Closing observed
07-31 19:45	40m	- / -	F5RRS	-14 / -	2	Partial capture
07-31 19:45	40m	- / -10	RC3D	+4 / -	2	✓ Closing fragment
07-31 19:14	20m	- / -	RA3ZDU	+8 / -	2	Partial capture
07-31 18:06	40m	- / -3	EU4U	-9 / -	3	Partial capture
07-31 18:02	40m	- / -	R7DX	-12 / -	5	Partial capture
07-31 18:02	40m	- / -9	YO4NT	+1 / -	2	Partial capture
07-26 13:07	20m	-7 / -	JR3IAO	- / -	3	Partial capture
07-25 16:40	20m	-8 / -	YB7FII	- / -	2	Partial capture
07-25 16:36	20m	-7 / -	BV2NF	- / -	3	Partial capture
07-18 19:50	40m	- / +3	DK7ZT	-15 / -	3	Partial capture
07-18 19:49	40m	- / -	9A4ZM	-4 / -	2	✓ Closing fragment
07-18 19:43	20m	- / -	F5RRS	-6 / -	3	Partial capture
07-18 19:42	20m	-2 / -14	F5JQF	-8 / -	2	Partial capture
07-18 19:38	20m	-4 / -	HB9XBY	- / -24	2	Partial capture
07-18 14:07	20m	0 / -	YC3DOC	- / -	2	Partial capture
07-18 14:02	20m	-3 / -	I0XNH	- / -23	4	Partial capture
07-11 04:53	20m	- / -	RK4FD	+1 / -	9	Partial capture
07-05 12:51	20m	- / +4	R9WJ	-22 / -	2	Partial capture
07-04 17:06	40m	- / -10	DK5UR	-4 / -	6	Partial capture
07-04 17:01	40m	- / +3	DK7ZT	-24 / -	2	Partial capture
06-28 11:35	20m	-7 / -	UB8CPH	- / -	2	Partial capture
06-28 11:33	20m	-6 / -	RA3TVW	- / -	2	Partial capture
06-23 12:38	20m	-6 / -	JA0FVU	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
175115  -3 2771  VK2WN R4NDG LO48
191400  -9 2621  R4NDG 9A6NTK RR73
191430  +6 2773  R4NDG RA3ZDU KO90 (x2)
193400  -3 2772  ER1NM R4NDG R-03
182115  +3 2851  R4NDG RY7G -04 (x2)
182330  -5 2772  PD1HPB R4NDG -16
155200  -5 2772  VE3GLN R4NDG LO48
155400  -5 2773  UB8CPH R4NDG LO48
155800  -2 2773  OZ6YN R4NDG LO48
160145  -4 2773  CQ R4NDG LO48 (x2)
160315  -8 2772  YO5PHL R4NDG -17 (x2)

40m

UTC    dB Audio  Message
180715  -8 2535  R4NDG EU4U -03 (x2)
180845 -17 2030  R4NDG R7GA LN14
194530  +5 2512  R4NDG RC3D 73
194530  -6 1710  R4NDG R2AL KO85
194530 -13 2018  R4NDG F5RRS JN36
194600  +3 2512  R4NDG RC3D -10
194600 -15 2018  R4NDG F5RRS JN36
194600 -12 2564  R4NDG A71UN +03
194615  -9 2732  A71UN R4NDG LO48
194630 -12 2564  R4NDG A71UN +02 (x2)
194830 -19 2099  R4NDG RW4HBD LO53
195045  -6 2732  EA6ZS R4NDG R-20
182530 -16 1834  R4NDG SP0DF JO73

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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