R4HGK — 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 R4HGK, decoded by SO8OO in southeastern Poland. 1,424 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.

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 1,424 FT8 messages attributed to R4HGK as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 80 m (4%) and 40 m (2%). Most decodes (75%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.6 dB.

Overview

1,424

Messages attributed

UTC dates decoded

227

Active 15-min windows

-11.6 dB

Estimated median S/N

Bands

80m · 53 40m · 35 20m · 1,336

First attributed message: 2026-06-06
Last attributed message: 2026-10-06 03:18 UTC

Observed FT8 message patterns

Attributed sample: 1,424 messages
Active dates: 57 UTC dates
Estimated median S/N: -11.6 dB
Estimated 10th-90th percentile: -21.5 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 490, moderate (-15 to -9 dB) 368, strong (≥ -8 dB) 566.

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 R4HGK in decoded directed-looking exchanges:

IK4LZH · Italy ×3 HA7TM · Hungary ×3 BA4VDC · China ×2 CT1BFP · Portugal ×2 G8IXM · England ×2 R7DX · European Russia ×2 RY2A · European Russia ×2 UA4FKT · European Russia ×2 UA6HFI · European Russia ×2 9A5VS · Croatia BD8CUC · China BH4ECL · China

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 R4HGK

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 · 932 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,036 km (approx.)
Last such locator decoded: 2026-10-06 03:18 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	R4HGK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 04:45	40m	- / -	UB3BDJ	-18 / -	2	Partial capture
10-06 04:00	40m	- / -10	RX6LHY	-10 / -	2	✓ Closing fragment
10-06 03:56	40m	- / -	R6LE	+4 / -	2	Partial capture
10-06 03:56	40m	- / -	RX6LHY	-7 / -	2	Partial capture
10-06 03:56	40m	- / -	UA3WG	-20 / -	2	✓ Closing fragment
10-06 03:45	40m	- / -9	UA6JQ	-6 / -	3	✓ Closing fragment
10-03 20:45	40m	- / -	F4BYA	+4 / -	4	Partial capture
10-03 20:10	40m	- / -	F3CJ	-14 / -	2	Partial capture
10-03 19:59	40m	- / -12	DH0GBC	+4 / -	3	✓ Closing fragment
10-03 16:19	40m	- / -15	G3VCQ	-14 / -	2	Partial capture
10-03 16:00	40m	- / -12	LZ2SPD	-5 / -	4	✓ Closing fragment
10-03 15:58	40m	- / -14	DL2VPO	+7 / -	5	✓ Closing fragment
10-03 15:55	40m	- / -14	RD5Q	-9 / -	3	✓ Closing fragment
10-03 15:50	40m	- / -5	RU5X	-3 / -	3	✓ Closing fragment
10-02 15:52	80m	- / -	R3MDJ	-14 / -	3	Partial capture
10-02 15:46	80m	-12 / -	RG4H	- / -8	4	✓ Closing fragment
10-02 15:44	80m	-15 / -6	R7FQ	-15 / -13	3	✓ Full exchange observed
10-02 15:43	80m	- / -5	UA3PY	-5 / -	2	✓ Closing fragment
10-02 15:41	80m	-15 / -	RK0SC	- / -	2	✓ Closing fragment
10-01 03:12	40m	- / -10	PD7BDN	+1 / -	4	✓ Closing fragment
09-30 04:25	40m	- / +5	RZ4FWA	-22 / -	3	✓ Closing fragment
09-28 16:31	40m	- / -8	RV3YN	-13 / -	5	✓ Closing fragment
09-28 16:30	40m	- / -11	EU1FQ	+8 / -	3	✓ Closing fragment
09-28 16:25	40m	- / +7	RM1B	-3 / -	3	✓ Closing fragment
09-28 16:17	40m	- / -12	HA7TM	+11 / -	4	✓ Closing fragment
09-28 16:12	40m	- / -3	UA3QNA	+2 / -	2	✓ Closing fragment
09-28 13:09	40m	- / -9	RN3OX	-10 / -	5	✓ Closing fragment
09-25 17:30	80m	- / 0	UB3DRL	-8 / -	3	Partial capture
09-25 17:28	80m	- / -19	RK6MC	-15 / -	4	Partial capture
09-25 17:21	80m	-24 / -8	RX6DA	-8 / -8	7	✓ Full exchange observed
09-25 17:21	80m	-22 / +2	R4IK	-13 / +2	2	Partial capture
09-25 17:15	80m	-19 / -13	R3DFE	-10 / -	6	✓ Closing observed
09-25 17:14	80m	- / -	RK6MC	-15 / -	4	Partial capture
09-25 17:14	80m	- / -10	RZ6BS	-15 / -	6	✓ Closing fragment
09-25 17:13	80m	-24 / -18	R1AV	-11 / -	6	✓ Closing observed
09-25 17:09	80m	- / -11	UN7LAN	-24 / -	2	Partial capture
09-25 17:05	80m	- / -14	RV9WJP	-17 / -	3	Partial capture
09-23 19:19	80m	- / -18	UA6EU	-14 / -	3	✓ Closing fragment
09-23 18:58	80m	-21 / -	RI1FJZ	- / -	3	Partial capture
09-23 18:28	80m	- / -3	ES2AJ	-16 / -	5	✓ Closing fragment
09-17 14:44	40m	- / +2	UA3GDJ	0 / -	4	✓ Closing fragment
09-16 18:26	80m	- / -15	RD4AAK	-12 / -	2	✓ Closing fragment
09-16 18:15	80m	- / -	R3PLA	-10 / -	3	Partial capture
09-16 18:13	80m	- / -20	HA7TM	+12 / -	3	✓ Closing fragment
09-16 18:09	80m	- / -16	R2GCV	-5 / -	2	✓ Closing fragment
09-16 18:09	80m	- / -18	UA9D	-21 / -	3	✓ Closing fragment
09-16 17:51	80m	- / -19	RZ7RCP	-10 / -	2	Partial capture
09-16 17:42	80m	- / -	UB6OAJ	+2 / -	2	✓ Closing fragment
09-16 17:34	80m	- / -11	RC2Y	+4 / -	4	✓ Closing fragment
09-16 17:33	80m	- / -	R2APC	-11 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
034530  -7 2814  R4HGK UA6JQ -09 (x3)
035600 -17 1440  R4HGK UA3WG KO71
035600  -7 1508  R4HGK RX6LHY LN07
035600  +2 2235  R4HGK R6LE LN07
035630  -7 1508  R4HGK RX6LHY LN07
035630  +5 2235  R4HGK R6LE LN07
035730 -22 1440  R4HGK UA3WG 73
040030  -8 1509  R4HGK RX6LHY R-10 (x2)
041500 -24 1654  R4HGK DL9KM JN68
044500 -20 1529  R4HGK UB3BDJ KO85 (x2)
053100 -19 1183  R4HGK TA3NK KM39

80m

UTC    dB Audio  Message
154430 -16  967  R7FQ R4HGK -13
154445 -15 1649  R4HGK R7FQ R-06
154500 -14  968  R7FQ R4HGK RR73
154630 -15  967  RG4H R4HGK -08 (x4)
154900 -14  967  CQ R4HGK LO53 (x2)
155245 -15 1301  R4HGK R3MDJ KO97 (x3)
155500 -14  967  CQ R4HGK LO53 (x2)
155700  -9  967  R3MDJ R4HGK -08

20m

UTC    dB Audio  Message
071845  -2 1528  R4HGK EA5HM R-20
072000 -24 1708  RN1TV R4HGK 73
072230 -24 1709  F4HSB R4HGK -08
072245 -13 1746  R4HGK F4HSB R+08
072300 -20 1708  F4HSB R4HGK RR73
080915 -12 1830  CQ R4HGK LO53 (x2)
165530  +9 1830  R4HGK DM9EE JO41 (x3)
170700 -11 1831  R4HGK DL6RH JO42 (x3)
174830  -3 2225  R4HGK EC3A -16 (x2)

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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