RA4FEA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO33

Receiver-side FT8 activity involving RA4FEA, decoded by SO8OO in southeastern Poland. 436 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-16.

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 436 FT8 messages attributed to RA4FEA as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 20 m (29%) and 10 m (13%). Most decodes (59%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -6 dB.

Overview

436

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 31 40m · 224 20m · 125 10m · 56

First attributed message: 2026-06-11
Last attributed message: 2026-09-16 15:05 UTC

Observed FT8 message patterns

Attributed sample: 436 messages
Active dates: 23 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -18 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 55, moderate (-15 to -9 dB) 89, strong (≥ -8 dB) 292.

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 RA4FEA in decoded directed-looking exchanges:

IK4LZH · Italy ×2 OH3OJ · Finland ×2 RA1AGA · European Russia ×2 UI6O · European Russia ×2 G8KHF · England ×2 R3PBA · European Russia ×2 UA9LT · Asiatic Russia ×2 HG2DX · Hungary R1TM · European Russia R6OIZ · European Russia RT6Z · European Russia YO3GNF · Romania

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 RA4FEA

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: LO33 · 226 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,771 km (approx.)
Last such locator decoded: 2026-09-16 15:05 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	RA4FEA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 05:50	40m	- / -5	UA3YGP	-5 / -	2	Partial capture
09-16 15:02	40m	0 / -	UN7PPV	- / -9	3	✓ Closing fragment
09-16 15:01	40m	-6 / -4	RA3ZGT	+1 / -	5	✓ Full exchange observed
09-16 15:00	40m	- / -	DA1ST	+2 / -	2	Partial capture
09-16 14:57	40m	0 / -12	UA4QK	-14 / -5	4	✓ Full exchange observed
09-16 14:50	40m	-6 / -	R9YAW	- / -15	3	✓ Closing fragment
09-16 14:50	40m	- / -11	ON1DGN	-17 / -	3	Partial capture
09-16 14:48	40m	-3 / +1	EW8HP	-6 / +3	6	✓ Full exchange observed
09-16 14:48	40m	0 / -	UA9LT	- / -4	2	✓ Closing fragment
09-16 14:47	40m	- / -	DK1XAM	-8 / -	2	Partial capture
09-16 14:44	40m	+4 / -13	RV3QP	0 / -	5	✓ Full exchange observed
09-16 14:42	40m	- / -	DG1KFR	-11 / -	3	Partial capture
09-16 14:37	40m	-3 / -	UB4CGR	- / -	3	✓ Closing fragment
09-16 14:36	40m	-4 / +3	RU4F	-3 / +7	5	✓ Full exchange observed
09-16 14:35	40m	-2 / -	UA6EU	-19 / -3	2	✓ Closing observed
09-16 14:33	40m	-6 / -	RV9ABE	- / +2	2	✓ Closing fragment
09-16 14:31	40m	-4 / -	UB8LAR	- / -14	3	✓ Closing fragment
09-16 14:28	40m	-4 / -	R3PBA	- / -2	4	✓ Closing fragment
09-16 14:28	40m	- / -	DA1ST	0 / -	2	Partial capture
09-16 14:26	40m	-6 / -	RW0AE	- / -19	2	✓ Closing fragment
09-16 14:25	40m	-5 / -	R2PE	-17 / +4	3	✓ Closing observed
09-16 14:24	40m	- / -	OE8PIT	0 / -	2	Partial capture
09-16 14:24	40m	- / -	SH7KAT	-8 / -	6	Partial capture
09-16 14:16	40m	-5 / -1	UB4LDD	-12 / -	3	✓ Closing observed
09-14 17:06	40m	0 / -19	R9FE	0 / -12	4	✓ Full exchange observed
09-14 17:02	40m	-4 / -	UA9LLE	- / -25	4	✓ Closing fragment
09-14 16:47	40m	-5 / -	F4HMP	-7 / -21	4	✓ Closing observed
09-14 16:45	40m	+2 / -	I0XNH	- / -	2	Partial capture
09-14 16:42	40m	+2 / -8	YU7AS	-3 / -10	6	✓ Full exchange observed
09-14 16:39	40m	- / -16	RA3TVW	+6 / -	4	Partial capture
09-14 16:39	40m	+4 / -	UB1CDJ	0 / +7	3	✓ Closing observed
09-14 16:33	40m	+10 / -2	LA5AKA	-2 / -1	5	✓ Full exchange observed
09-14 16:31	40m	-2 / -15	YT2FA	-8 / -	3	Partial capture
09-14 16:30	40m	0 / +1	EX7CQ	-4 / +6	5	✓ Full exchange observed
09-08 15:54	80m	-10 / -10	R1943OD	+1 / +6	3	Partial capture
09-08 15:51	80m	-14 / -	RA9AJ	- / -	2	Partial capture
09-08 15:44	80m	-9 / -	UA9FFV	- / -3	2	✓ Closing fragment
09-08 15:42	80m	-3 / -	RA9CUU	- / +3	2	Partial capture
09-08 15:41	80m	-6 / -3	R4DD	-8 / -	5	✓ Full exchange observed
09-08 15:40	80m	0 / -	RA6LTD	-7 / -5	3	✓ Closing observed
09-08 15:38	80m	+2 / -	RK8W	-3 / +1	5	✓ Closing observed
09-08 15:36	80m	-14 / -	UA0TP	- / -11	2	✓ Closing fragment
09-08 15:31	80m	-19 / -6	RW6AU	-16 / -14	5	✓ Full exchange observed
09-08 15:20	40m	-3 / -2	UB3YCK	+1 / -	3	Partial capture
09-08 15:14	40m	-10 / -	R7DX	-7 / -	3	✓ Closing observed
09-08 15:11	40m	-6 / -	R6OV	-11 / -	3	✓ Closing observed
09-08 15:03	40m	-7 / -	RV9CME	- / -14	2	✓ Closing fragment
09-08 15:01	40m	-9 / -	UC6Y	-11 / -	4	✓ Closing observed
09-08 14:55	40m	-10 / -3	R2GBR	-10 / -	4	✓ Full exchange observed
09-08 14:53	40m	-6 / -	UB9USV	- / -6	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
150100  -1 2524  CQ RA4FEA LO33
150115  -2 2525  RA4FEA DA1ST JO41
150145  -1 2154  RA4FEA RA3ZGT KO81
150200  -2 2524  UN7PPV RA4FEA R-09 (x3)
150330  -6 2524  RA3ZGT RA4FEA +22
150345  +0 2185  RA4FEA RA3ZGT R-04
150400  -7 2525  RA3ZGT RA4FEA RR73
150415  +4 2184  RA4FEA RA3ZGT 73
150430  -6 2525  CQ RA4FEA LO33 (x2)
054500  -6  979  RA4FEA R3KJF KO91
055045  -8  944  RA4FEA UA3YGP -05 (x2)

80m

UTC    dB Audio  Message
154045  -5 2462  RA6LTD RA4FEA 73
154115  -6 2317  R4DD RA4FEA LO33
154130  -7 2319  RA4FEA R4DD -03
154145  -6 2318  R4DD RA4FEA R+15
154200  -8 2319  RA4FEA R4DD RR73
154215  -6 2316  R4DD RA4FEA 73
154245  -5 1002  RA9CUU RA4FEA LO33 (x2)
154445  -9 1148  UA9FFV RA4FEA -03 (x2)
155100 -18 2118  RA9AJ RA4FEA LO33 (x2)
155400 -14 2357  R1943OD RA4FEA LO33
155415  +1 2357  RA4FEA R1943OD -10
155430  -6 2357  R1943OD RA4FEA R+06

20m

UTC    dB Audio  Message
050545 -17 1406  RX3ASQ RA4FEA LO33
050700 -15 2578  RA4FEA R3HX +00
050715 -10 2578  R3HX RA4FEA R-02 (x2)
050845  -2 2901  R2EC RA4FEA LO33
050945 -20 2077  KI7SKT RA4FEA LO33
091715 -14 2463  R9AL RA4FEA R-06
092400 -24 1845  R3BCL RA4FEA 73
052715 -11 2321  WD4OBP RA4FEA LO33 (x2)
053230 -15 2144  R2EA RA4FEA R+05
043915  -2 1512  BG0FQU RA4FEA LO33
044100  -8  882  FR5CB RA4FEA LO33
044230 -12 1936  VK2SOL RA4FEA LO33
062045  +8  717  UA9QFF RA4FEA R-10

10m

UTC    dB Audio  Message
084815 -18 1556  RA4FEA UA4FKT LO23 (x2)
085045 -15 2187  RA4FEA DN9CHV JO31 (x2)
085615 +11  490  RA4FEA IK4LZH JN54 (x4)
055700 -14 2248  RA4FEA R6OIZ -11 (x2)
060600  +1  682  RA4FEA SV2CLJ -12 (x2)
060630 -21 1615  RA4FEA RT6Z -05
060700  -3  682  RA4FEA SV2CLJ -12
060700 -21 1614  RA4FEA RT6Z RR73

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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