R4HLM — 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: LO53

Receiver-side FT8 activity involving R4HLM, decoded by SO8OO in southeastern Poland. 635 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 46 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-23.

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 635 FT8 messages attributed to R4HLM as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 40 m (41%) and 20 m (13%). Most decodes (97%) 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 -12 dB.

Overview

635

Messages attributed

UTC dates decoded

127

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 291 40m · 263 20m · 81

First attributed message: 2026-06-08
Last attributed message: 2026-10-23 18:50 UTC

Observed FT8 message patterns

Attributed sample: 635 messages
Active dates: 46 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -3.9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 191, moderate (-15 to -9 dB) 257, strong (≥ -8 dB) 187.

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 R4HLM in decoded directed-looking exchanges:

IK4LZH · Italy ×4 R2EA · European Russia ×3 R6ML · European Russia ×3 IW4EGP · Italy ×2 R2AL · European Russia ×2 R2OM · European Russia ×2 R5GG · European Russia ×2 RA3WY · European Russia ×2 RA3ZOM · European Russia ×2 RW3ZR · European Russia ×2 DH1BAS · Fed. Rep. of Germany ×2 ON1AEY · Belgium ×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 R4HLM

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 · 305 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,036 km (approx.)
Last such locator decoded: 2026-10-23 18:50 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	R4HLM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 18:46	80m	- / -	RA6Z	-8 / -	2	✓ Closing fragment
10-23 18:43	80m	-16 / -7	SP9PLK	+6 / -7	5	✓ Full exchange observed
10-23 18:40	80m	-12 / -16	RW1AI	-7 / -7	5	✓ Full exchange observed
10-23 18:40	80m	-16 / -21	YT5DL	0 / -13	7	✓ Full exchange observed
10-23 18:38	80m	-14 / -	R3DBX	- / -1	2	✓ Closing fragment
10-23 18:34	80m	-14 / -	R7NO	-13 / -7	3	✓ Closing observed
10-22 18:30	80m	- / -16	SV1ENG	-14 / -	5	✓ Closing fragment
10-22 18:30	80m	- / -	PA3FPQ	+6 / -	2	Partial capture
10-22 18:29	80m	- / -	RU3NCW	-4 / -	2	Partial capture
10-22 18:08	40m	- / -13	PA3BMB	-7 / -	3	✓ Closing fragment
10-22 17:55	40m	-12 / -17	YU1EU	-10 / -15	3	✓ Full exchange observed
10-22 17:53	40m	-15 / -11	2E0FHM	-5 / -	4	✓ Closing observed
10-18 17:51	80m	- / -5	RL3FA	-3 / -	3	✓ Closing fragment
10-18 17:49	80m	-16 / -	UA4POO	-9 / +4	4	✓ Closing observed
10-18 17:00	80m	- / -4	RM1O	+2 / -	2	✓ Closing fragment
10-18 16:59	80m	- / 0	R3VE	-9 / -	2	✓ Closing fragment
10-17 17:24	40m	-6 / -	R6ML	+1 / -3	3	✓ Closing observed
10-17 17:20	40m	-4 / -4	OE6TNO	+3 / -6	5	✓ Full exchange observed
10-17 11:52	40m	- / +10	UA3DPM	-23 / -	3	✓ Closing fragment
10-16 18:31	80m	- / -8	RT6Z	+1 / -	3	✓ Closing fragment
10-16 18:28	80m	- / -15	SP1MGM	+2 / -	3	✓ Closing fragment
10-16 18:26	80m	-15 / -6	RV9WJP	-22 / -	4	✓ Closing observed
10-16 18:08	80m	-14 / -	R4ZZ	- / -	2	Partial capture
10-16 17:56	40m	-10 / -	BG0FQU	- / -14	2	Partial capture
10-16 17:55	40m	-11 / -8	ON3MOH	-8 / -11	4	✓ Full exchange observed
10-15 18:46	80m	-9 / -10	RU6C	-2 / -15	4	✓ Full exchange observed
10-15 18:41	80m	- / -7	RW9MZ	-24 / -	2	✓ Closing fragment
10-15 18:39	80m	- / 0	RA4ABH	-13 / -	2	✓ Closing fragment
10-15 18:06	80m	- / -9	R1WBW	+11 / -	3	✓ Closing fragment
10-15 18:02	40m	-11 / -	HA3YA	-12 / -14	4	Partial capture
10-15 17:58	40m	-5 / +1	IK2ZJR	+3 / -5	5	✓ Full exchange observed
10-15 17:55	40m	-6 / -5	F4FSY	-4 / -12	4	✓ Full exchange observed
10-15 17:53	40m	-8 / -	SP3JHZ	-3 / -	3	✓ Closing observed
10-10 18:29	80m	-16 / -16	S58N	+8 / -2	5	✓ Full exchange observed
10-10 18:22	40m	0 / -11	F4BYA	+15 / -18	6	✓ Full exchange observed
10-10 16:58	80m	-18 / -	R9MBC	-24 / -14	3	✓ Closing observed
10-08 18:48	40m	- / -	HB9MZI	-6 / -	5	Partial capture
10-08 18:45	40m	-10 / -11	TA3NK	-4 / -13	4	✓ Full exchange observed
10-08 18:35	80m	- / -15	DK2CC	+7 / -	7	Partial capture
10-08 18:35	80m	-13 / -	OK1UOZ	+11 / -22	11	Partial capture
10-08 18:16	80m	-19 / -3	RA5AD	0 / -	3	✓ Closing observed
10-08 18:12	80m	- / -8	UA3IDQ	-5 / -	2	✓ Closing fragment
10-04 21:15	80m	- / -3	UA4POO	-2 / -	2	Partial capture
10-04 21:13	80m	-16 / -24	DG1ABE	+2 / -1	5	✓ Full exchange observed
10-04 20:54	80m	- / -8	UC6D	+2 / -	3	✓ Closing fragment
10-04 20:41	40m	-24 / -4	F6FHZ	-17 / -8	5	✓ Full exchange observed
10-04 20:39	40m	- / -6	M0IOY	-12 / -	3	✓ Closing fragment
10-04 16:54	80m	-8 / -7	OK1FRG	+21 / -13	5	✓ Full exchange observed
10-04 16:54	80m	- / -19	R6ZCE	-6 / -	2	Partial capture
10-04 16:54	80m	-15 / -9	RA3WY	0 / -2	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
184130 -19 2203  YT5DL R4HLM -13
184145  +0 2203  R4HLM YT5DL R-21
184200 -14 2203  YT5DL R4HLM RR73
184215  -2 2204  R4HLM YT5DL 73
184230 -14 2203  CQ R4HLM LO53
184315  +8 2203  R4HLM SP9PLK JO90
184330 -17 2203  SP9PLK R4HLM -07
184345  +5 2203  R4HLM SP9PLK R-07
184400 -15 2203  SP9PLK R4HLM RR73
184415  +4 2203  R4HLM SP9PLK 73
184500 -12 2203  CQ R4HLM LO53 (x2)
184615 -14 2203  R4HLM RA6Z KN98 (x2)
185000 -17 1406  CQ R4HLM LO53

160m

UTC    dB Audio  Message
183245  -1  644  R4HLM RM5F KO85

40m

UTC    dB Audio  Message
175400  +3  748  R4HLM 2E0FHM R-11
175415 -15 2092  2E0FHM R4HLM RR73
175430  -9  748  R4HLM 2E0FHM 73
175445 -16 2091  CQ R4HLM LO53
175500 -10 1189  R4HLM YU1EU -17
175515 -10 2092  YU1EU R4HLM R-15 (x2)
175845 -13 2088  R4HLM PA3BMB JO22
180515 -17 1483  CQ R4HLM LO53                         a1
180815 -10 1161  R4HLM PA3BMB JO22 (x3)
181700  -6  830  DK2MAX R4HLM RR73
182100 -12 2158  CQ R4HLM LO53
182345 -10 2245  R4HLM PA3GYF JO22

20m

UTC    dB Audio  Message
190615 -14 1242  R4HLM PD0U R-16
190630  -2 1239  PD0U R4HLM RR73
190700  -6 1239  CQ R4HLM LO53 (x3)
113915 +10 2864  R4HLM F4BYA JN19 (x4)
191915 -11 2075  CQ R4HLM LO53
191930 +16 2917  R4HLM F4BYA JN19
191945 -14 2075  CQ R4HLM LO53
192000 +16 2917  R4HLM F4BYA JN19 (x2)
180200 -13 1893  R4HLM R6DJR 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.

CW

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

Explore CW reception at SO8OO

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