RA4HG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO53

Receiver-side FT8 activity involving RA4HG, decoded by SO8OO in southeastern Poland. 1,865 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-04.

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 1,865 FT8 messages attributed to RA4HG as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (50%), followed by 40 m (38%) and 80 m (7%). Most decodes (57%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

1,865

Messages attributed

UTC dates decoded

465

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 22 80m · 128 40m · 707 20m · 935 10m · 73

First attributed message: 2026-06-06
Last attributed message: 2026-10-04 19:04 UTC

Observed FT8 message patterns

Attributed sample: 1,865 messages
Active dates: 80 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -18 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 307, moderate (-15 to -9 dB) 553, strong (≥ -8 dB) 1,005.

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 RA4HG in decoded directed-looking exchanges:

R3YCJ · European Russia ×2 R70SAB · European Russia ×2 UN0GY · Kazakhstan ×2 F4HSB · France ×2 R6DZD · European Russia ×2 RA3WY · European Russia ×2 UB3BDB · European Russia ×2 LW5EVI · Argentina ×2 R3TY · European Russia ×2 R3WDU · European Russia ×2 R6OIZ · European Russia ×2 R7ZY · European Russia ×2

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 RA4HG

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: LO53 · 198 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,036 km (approx.)
Last such locator decoded: 2026-07-30 18:10 UTC

Other locator fields attributed to this token: LO63 (7).

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	RA4HG S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 19:07	80m	- / -14	R3DPZ	-2 / -	2	Partial capture
10-04 19:04	80m	-10 / -	R6AO	- / -19	2	Partial capture
10-04 19:00	80m	-6 / -5	RW9MZ	-8 / -6	5	✓ Full exchange observed
10-04 18:50	160m	-24 / -8	RM5P	-22 / -11	3	✓ Full exchange observed
10-04 18:38	160m	-23 / -	R3YCJ	- / -16	5	Partial capture
10-03 04:51	40m	-16 / -	R80SAA	+4 / 0	2	✓ Closing observed
09-29 02:31	80m	-16 / -7	RO6OP	0 / -5	4	✓ Full exchange observed
09-29 02:26	80m	-20 / -20	RK6OV	-6 / -14	5	✓ Full exchange observed
09-29 02:23	80m	-16 / -	RO6OP	- / -4	2	Partial capture
09-28 19:52	160m	-24 / 0	UN0GY	-22 / -	3	✓ Closing observed
09-28 19:46	160m	-23 / -17	R6DAZ	-11 / -15	4	✓ Full exchange observed
09-27 15:43	40m	-17 / -	R4HMI	- / -6	2	Partial capture
09-27 15:42	40m	-16 / -	UB3BDB	- / -8	2	✓ Closing fragment
09-27 02:25	80m	-1 / -	R4AGE	-6 / -19	4	✓ Closing observed
09-27 02:19	80m	-7 / -14	UA6Q/M	+17 / -5	2	Partial capture
09-27 02:17	80m	-8 / -	R5BM/M	- / -5	4	Partial capture
09-26 02:45	40m	-2 / -	R9HEN	- / -16	3	✓ Closing fragment
09-25 02:55	40m	-16 / -	JV1RST	- / -17	2	Partial capture
09-25 02:44	80m	- / -10	R7CD	+11 / -	2	✓ Closing fragment
09-23 15:21	40m	-9 / -	R4CKC	- / -5	2	✓ Closing fragment
09-23 15:15	40m	-9 / -	R3DMC	- / -12	2	✓ Closing fragment
09-23 15:11	40m	0 / -	R3DID	-6 / -3	3	✓ Closing observed
09-23 15:05	40m	-6 / -	PU2PQQ	- / -22	2	Partial capture
09-23 14:35	40m	-10 / -	R8PG/P	- / -12	2	✓ Closing fragment
09-22 17:24	80m	-13 / -19	R3DMS	+1 / -17	11	✓ Full exchange observed
09-22 17:12	40m	-5 / -	UR3VBM	- / -11	2	Partial capture
09-22 16:56	80m	-15 / -	RV9WJP	- / -15	3	✓ Closing fragment
09-22 16:50	80m	- / -1	R9FEM	-9 / -	2	✓ Closing fragment
09-22 16:27	80m	-14 / -	R3NAW	- / -15	2	Partial capture
09-21 17:49	40m	-4 / -	UB3BCE	- / -14	3	✓ Closing fragment
09-21 17:10	80m	-17 / -	RN4LP	+9 / -1	3	✓ Closing observed
09-21 16:45	40m	-6 / -	YO6TIM	- / -7	2	Partial capture
09-21 16:43	40m	-10 / -	UB3FBD	- / -13	2	✓ Closing fragment
09-21 16:17	40m	-3 / -4	HB9ELE	+6 / -8	4	✓ Full exchange observed
09-21 16:09	80m	- / -10	R7ZY	+6 / -	2	✓ Closing fragment
09-21 15:20	40m	- / -14	DJ0BS	-6 / -	3	✓ Closing fragment
09-21 15:15	40m	+2 / -	R3NAW	- / -5	4	Partial capture
09-15 22:07	80m	-11 / -	TK/4O7CC	- / -14	8	Partial capture
09-15 21:30	40m	+5 / -	M8LZP/P	- / -13	4	Partial capture
09-15 21:26	40m	+8 / -2	II8IHBC	-10 / -14	5	Partial capture
09-14 20:04	40m	-13 / -	2E0UMK	- / -16	2	Partial capture
09-14 20:01	40m	-11 / +5	9A3MYL	-6 / -14	4	✓ Full exchange observed
09-12 20:19	160m	- / -16	RM5F	-7 / -	3	✓ Closing fragment
09-12 20:16	160m	-23 / 0	RG4D/P	-10 / -20	6	✓ Full exchange observed
09-12 19:50	160m	- / -	RU3DBT	-22 / -	2	Partial capture
09-12 19:32	160m	- / -16	R70SAB	-14 / -	2	✓ Closing fragment
09-12 19:07	160m	-20 / -	RG4D/P	- / -8	3	Partial capture
09-12 17:28	80m	-16 / -	UA3TCJ	- / -4	2	Partial capture
09-12 17:22	80m	-16 / -	UA3TCJ	- / +1	2	Partial capture
09-12 17:14	160m	- / 0	RT4A/P	-21 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
022830  -5 2668  RA4HG RK6OV 73
023100 -15 2568  RO6OP RA4HG -05
023115  -1 1997  RA4HG RO6OP R-07
023130 -16 2568  RO6OP RA4HG RR73
023145  +1 1997  RA4HG RO6OP 73
210830  -6 2567  UN0GY RA4HG RR73
190000  -6 2567  RW9MZ RA4HG -06 (x3)
190300  -5 1837  RA4HG RW9MZ R-05 (x2)
190415 -12 2566  R6AO RA4HG -19 (x2)
190730  -4 1041  RA4HG R3DPZ R-14 (x2)

160m

UTC    dB Audio  Message
194715 -24 1648  R6DAZ RA4HG -13
194730 -12 1284  RA4HG R6DAZ R-17 (x2)
195215 -21 2193  RA4HG UN0GY R+00
195230 -24 1647  UN0GY RA4HG RR73
195245 -24 2193  RA4HG UN0GY 73
183815 -18 1752  R3YCJ RA4HG -16 (x6)
185000 -24 1752  RM5P RA4HG -11
185015 -19 1813  RA4HG RM5P R-08 (x2)

40m

UTC    dB Audio  Message
025615 -17 2073  JV1RST RA4HG -18
034445  -8 2059  R2DAY RA4HG -05
150930  -9  955  UA4QK RA4HG -05
023415  -5  660  PP1DX RA4HG RR73
024530 -10  660  R9HEN RA4HG -16 (x3)
145145  -8 1237  PA7J RA4HG RR73
153715 -14 1374  RA4HG UB1AUW 73
154200 -16 1225  UB3BDB RA4HG -08 (x2)
154330 -16 1225  R4HMI RA4HG -06 (x2)
045115 -16 2209  R80SAA RA4HG +00
045200  +4 2238  RA4HG R80SAA 73

20m

UTC    dB Audio  Message
054230  -8 1966  SV8JVM RA4HG -17
054300 -18 1966  UA6AFE RA4HG -09 (x3)
054415  +2 1966  RA4HG UA6AFE R-11
054430 -10 1966  UA6AFE RA4HG RR73
054445  +2 1966  RA4HG UA6AFE 73
054600 -10 1966  DK4FP RA4HG -12 (x2)
064200 -14 1399  EG1PPE RA4HG -16
104515 -18 1397  GB2WVR RA4HG -10
104600  +0 1241  RA4HG GB2WVR R-06 (x2)
104715 -19 1396  <...> RA4HG -13 (x2)

10m

UTC    dB Audio  Message
182045  -8 2494  RA4HG M0VUE +04 (x2)
134315 -14 2254  RA4HG R1DM -04 (x2)
134715 -13  995  RA4HG DG3EAJ -17 (x2)
094230 -14 1797  RA4HG CN2DX -19 (x2)
134945  +7 2423  RA4HG DN9OPA -17
143815 -14 1390  RA4HG IU3WNU -14 (x2)
144945  +5 2604  RA4HG PE1LYU -06
092645 -10 1527  RA4HG F5OYC R+00 (x2)
093215 -16 1803  RA4HG F1SZC 73

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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