R4HMI — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving R4HMI, decoded by SO8OO in southeastern Poland. 835 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 835 FT8 messages attributed to R4HMI as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (51%), followed by 40 m (37%) and 20 m (9%). Most decodes (87%) 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 -10.6 dB.

Overview

835

Messages attributed

UTC dates decoded

191

Active 15-min windows

-10.6 dB

Estimated median S/N

Bands

160m · 1 80m · 422 40m · 307 20m · 79 10m · 26

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 18:58 UTC

Observed FT8 message patterns

Attributed sample: 835 messages
Active dates: 57 UTC dates
Estimated median S/N: -10.6 dB
Estimated 10th-90th percentile: -18 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 187, moderate (-15 to -9 dB) 358, strong (≥ -8 dB) 290.

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 R4HMI in decoded directed-looking exchanges:

UA3ZUX · European Russia ×3 HA7TM · Hungary ×3 RK4FD · European Russia ×2 RN3TT · European Russia ×2 RY3D · European Russia ×2 UA3PTK · European Russia ×2 RD0L · Asiatic Russia ×2 R1TAX · European Russia ×2 R4UA · European Russia ×2 R6ML · European Russia ×2 R9AL · Asiatic Russia ×2 RC2Y · 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 R4HMI

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: KO85 · 345 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-10-22 17:20 UTC

Other locator fields attributed to this token: LO43 (34), KO95 (10), and LO53 (3).

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	R4HMI S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 18:58	80m	-9 / -18	RU9CK	-8 / -9	4	✓ Full exchange observed
10-22 18:57	80m	-6 / -12	R2FEA	+3 / -	3	✓ Closing observed
10-22 18:52	40m	- / -13	LX1JH	+8 / -	2	✓ Closing fragment
10-21 19:21	80m	-12 / -17	RA4NCC	-17 / -	4	✓ Closing observed
10-21 19:21	80m	-10 / -	R6CW	-7 / -8	3	✓ Closing observed
10-21 19:18	80m	-6 / -2	UA3GJM	-1 / -2	5	✓ Full exchange observed
10-21 19:16	80m	-8 / -6	UB3LCO	-4 / -2	6	✓ Full exchange observed
10-21 19:11	80m	- / -5	R6LNH	-1 / -	5	✓ Closing fragment
10-21 16:01	80m	-10 / -	RZ0SW	- / -	3	Partial capture
10-20 17:58	40m	-15 / -	UA1PBD	- / -	2	Partial capture
10-20 16:23	40m	-8 / -5	RD6MR	-5 / -2	4	✓ Full exchange observed
10-18 17:30	80m	-17 / -	UA9FMT	- / -9	3	✓ Closing fragment
10-18 17:25	80m	-14 / -18	RA1AGA	-9 / -20	8	✓ Full exchange observed
10-18 16:08	80m	-16 / -8	RW1C	+2 / -	4	✓ Closing observed
10-18 16:07	80m	- / -	SP9UPH	+14 / -	2	Partial capture
10-18 16:07	80m	-14 / -13	UA9LT	-18 / -16	4	✓ Full exchange observed
10-18 16:06	80m	-9 / -	R2DVU	-14 / -	3	✓ Closing observed
10-18 16:02	80m	-17 / -	R2BBT	- / -4	2	✓ Closing fragment
10-16 19:10	40m	-14 / -	S79VU	- / -	3	Partial capture
10-15 17:36	40m	-8 / -	R7GA	- / -13	2	✓ Closing fragment
10-15 17:34	40m	- / -12	DL2RPN	-12 / -	4	✓ Closing fragment
10-15 17:33	40m	-12 / -15	RD3FY	-4 / -18	6	✓ Full exchange observed
10-15 17:32	40m	- / -4	UI7N	0 / -	3	Partial capture
10-15 15:22	80m	-12 / -	R4AGE/P	- / -11	8	Partial capture
10-15 14:25	40m	-18 / -	UA9KBC	- / -	3	Partial capture
10-15 14:22	40m	-18 / -	UA9KBC	- / -	2	Partial capture
10-15 14:19	40m	-19 / +2	RO5A	-10 / -	3	✓ Closing observed
10-15 14:18	40m	-16 / -1	RU4SS	-20 / 0	4	✓ Full exchange observed
10-15 14:17	40m	-17 / -	UN7PNF	- / -9	2	✓ Closing fragment
10-15 14:15	40m	-15 / -10	RK1K	-6 / -4	5	✓ Full exchange observed
10-14 17:11	80m	-8 / +2	R3EDI	0 / -1	5	✓ Full exchange observed
10-13 14:26	40m	- / -	R7YZ	-10 / -	2	Partial capture
10-13 14:18	40m	-14 / -15	RA8AF	-8 / -	3	✓ Closing observed
10-11 18:19	40m	-20 / -	R8CIS	- / -5	2	Partial capture
10-11 18:18	40m	-16 / -	SP4MPH	- / -11	2	✓ Closing fragment
10-11 15:49	80m	-12 / -	RA6Z	-22 / -9	2	Partial capture
10-11 15:48	80m	-18 / -	R4SCQ	- / -14	3	✓ Closing fragment
10-11 15:46	80m	-12 / -	R8AEZ	- / -15	2	✓ Closing fragment
10-11 15:45	80m	-17 / +8	RD3MF	-16 / -3	4	✓ Full exchange observed
10-11 15:45	80m	- / -	DK2CC	+2 / -	8	Partial capture
10-11 15:39	40m	- / -18	RM6J	-11 / -	3	✓ Closing fragment
10-11 15:39	40m	- / 0	RM7M	-12 / -	2	✓ Closing fragment
10-11 15:38	40m	-17 / -	RK4FF	- / -5	2	✓ Closing fragment
10-11 15:35	40m	-14 / -	RV3SBS	- / -18	3	Partial capture
10-10 15:44	80m	-5 / -	R9AL	- / -11	3	✓ Closing fragment
10-10 15:41	80m	-9 / -	R7CD	-1 / -2	3	✓ Closing observed
10-10 15:38	80m	-18 / -	UA3SAO	- / -4	2	✓ Closing fragment
10-10 15:37	80m	-12 / -	R0ADK	- / -	2	Partial capture
10-10 15:35	80m	-8 / +1	RK1N	+2 / -4	5	✓ Full exchange observed
10-10 15:32	80m	-6 / -	UA9FLI	-14 / -11	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
192100 -16 1998  R6CW R4HMI R-08
192115 -15  205  R4HMI RA4NCC LO68
192115  -7 1932  R4HMI R6CW RR73
192130  -4 1998  R6CW R4HMI 73
192215 -17  205  R4HMI RA4NCC R-17
192230 -12 1999  RA4NCC R4HMI RR73
192245 -19  206  R4HMI RA4NCC 73
172045 -12 1999  R1QF/P R4HMI KO85
185730  -4 2681  R4HMI R2FEA R-12
185745  -6 1999  R2FEA R4HMI RR73
185800  -9  350  R4HMI RU9CK -18
185800 +10 2680  R4HMI R2FEA 73
185815 -10 1999  RU9CK R4HMI R-09
185830  -6  350  R4HMI RU9CK RR73
185845  -8 1998  RU9CK R4HMI 73

40m

UTC    dB Audio  Message
191100 -14 2137  S79VU R4HMI KO85
230115  +4 1317  R4HMI G1PZS R+07
043015 -16  858  R4HMI RA4PIS +03
043315 -14 2434  N4NJJ R4HMI KO85
162215 -10 2034  CQ R4HMI KO85 (x2)
162300  -9 2035  R4HMI RD6MR KN98
162315  -8 2035  RD6MR R4HMI -02
162330  +0 2034  R4HMI RD6MR R-05 (x2)
175800 -12 2034  UA1PBD R4HMI KO85 (x2)
171300 -16 2035  RX6ATU R4HMI -05
185230  +9 2036  R4HMI LX1JH -13 (x2)

10m

UTC    dB Audio  Message
112130 -21 2053  R4HMI 9K2GR -12

160m

UTC    dB Audio  Message
204330  -4 1496  R4HMI RK3QA RR73
164245  +7 1952  R4HMI UA3D KO95 (x3)
191815 -16 1228  R4HMI RL3F KO95 (x3)
173500 -24 1738  R4HMI RC9F -19
181845 -19  797  R4HMI RA1AGX KO49 (x2)
184545 -12 2098  R4HMI RV3ZK 73
170315  -4 2821  R4HMI UA2FBW KO04 (x3)
171230 -16 2155  R4HMI R5ZJ -20

20m

UTC    dB Audio  Message
092345  -2 2316  RI1FJL R4HMI KO85 (x2)
092430  -9  527  R4HMI RI1FJL RR73
092445  -1 2315  RI1FJL R4HMI 73
172230  -3 1558  KL1R R4HMI KO85
172700  -7 2272  R4HMI DM2DXA -14
172715  +2 1558  DM2DXA R4HMI R+01
172730  -6 2272  R4HMI DM2DXA -14 (x2)
172845  -3 1558  DM2DXA R4HMI R+03 (x3)
181545 -12 1916  R4HMI RD0L RR73
181900 -13 2166  R4HMI K1WY -01 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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