RM4N — 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: LO48

Receiver-side FT8 activity involving RM4N, decoded by SO8OO in southeastern Poland. 1,658 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 91 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 1,658 FT8 messages attributed to RM4N as the transmitting token by decoded message structure across 91 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (53%), followed by 40 m (47%) and 80 m (0%). Most decodes (72%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

1,658

Messages attributed

UTC dates decoded

345

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 1 40m · 778 20m · 879

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 14:10 UTC

Observed FT8 message patterns

Attributed sample: 1,658 messages
Active dates: 91 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 303, moderate (-15 to -9 dB) 686, strong (≥ -8 dB) 669.

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 RM4N in decoded directed-looking exchanges:

BG0FQU · China ×2 BI3UPU · China ×2 M7TPT · England ×2 M9KJY · England ×2 YC2YIZ · Indonesia ×2 G0MSE · England ×2 R1BQR · European Russia ×2 R6ADH · European Russia ×2 RA6ATZ · European Russia ×2 RC6YI · European Russia ×2 PT7YV · Brazil 7Z1GC · Saudi Arabia

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 RM4N

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: LO48 · 125 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,989 km (approx.)
Last such locator decoded: 2026-10-11 18:19 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	RM4N S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 17:48	40m	-14 / -	VK2LAW	- / -12	2	Partial capture
10-21 17:39	40m	-15 / -	HB0PA	- / -8	4	Partial capture
10-21 17:37	40m	-18 / -	S59ST	- / -7	2	✓ Closing fragment
10-17 05:08	40m	-21 / -3	RA5O	+2 / -	3	✓ Closing observed
10-14 17:46	40m	-12 / -	M7COV	- / -19	2	✓ Closing fragment
10-14 17:30	40m	-20 / -	JF1LMB	- / -12	2	✓ Closing fragment
10-14 17:18	40m	-12 / -8	RU6FS	-2 / -9	4	✓ Full exchange observed
10-14 15:27	40m	- / -19	IZ3EAW	+3 / -	3	✓ Closing fragment
10-14 15:22	40m	- / -7	R8QA	-11 / -	2	✓ Closing fragment
10-13 17:27	40m	-12 / -16	G6PWS	-4 / -7	3	✓ Full exchange observed
10-13 17:18	40m	-11 / -4	GI4OGS	-12 / -17	4	✓ Full exchange observed
10-13 17:11	40m	-16 / -3	R2BPS	-12 / +1	4	✓ Full exchange observed
10-13 17:08	40m	-15 / -	UN7PHV	- / -4	2	✓ Closing fragment
10-13 17:06	40m	-18 / -8	M9XPN	-15 / -	3	✓ Closing observed
10-13 17:04	40m	-11 / -	R1BQR	- / -17	4	✓ Closing fragment
10-13 17:03	40m	- / +8	OS4K	-14 / -	3	Partial capture
10-13 17:02	40m	-12 / -	R1BQC	-14 / -7	3	✓ Closing observed
10-13 16:55	40m	-15 / -	M7IUN	- / -12	2	✓ Closing fragment
10-13 16:54	40m	-17 / -4	RD7KW	+4 / 0	4	✓ Full exchange observed
10-13 16:52	40m	-10 / -	UB1AYZ	- / -16	3	✓ Closing fragment
10-12 17:18	40m	-16 / -6	RA0LQ	-12 / -	2	✓ Closing observed
10-12 16:28	40m	-17 / -	R4DS	- / -14	6	Partial capture
10-12 16:21	40m	-13 / -	YC0AVW	- / -19	3	Partial capture
10-12 16:17	40m	-18 / -	9M2SWI	- / -18	2	Partial capture
10-12 16:15	40m	-19 / -	R7CQ	- / -9	2	✓ Closing fragment
10-12 15:55	40m	-19 / -	R7RCO/M	- / -18	5	Partial capture
10-12 15:39	40m	-23 / -16	R9LY	-8 / -1	4	✓ Full exchange observed
10-12 15:39	40m	- / -16	R7ZY	+3 / -	2	✓ Closing fragment
10-12 15:30	40m	-13 / -	R0JAC	- / -19	3	Partial capture
10-12 15:28	40m	-12 / -	R5BM/6	- / -9	2	Partial capture
10-11 18:20	40m	-10 / -	M9LDX	-18 / -17	2	✓ Closing observed
10-11 18:18	40m	-12 / -	G0SGR	- / -	3	Partial capture
10-11 16:03	40m	-16 / +7	RA3PDL	-13 / -	5	Partial capture
10-10 04:31	40m	-11 / -	RC3DN	- / -7	2	Partial capture
10-10 04:24	40m	- / -	RD4HX	-12 / -	2	Partial capture
10-10 04:22	40m	- / -3	RN3RY	-11 / -	2	✓ Closing fragment
10-10 04:21	40m	- / -3	RA3DFQ	+2 / -	2	✓ Closing fragment
10-10 04:19	40m	- / -	RD3FY	-10 / -	5	Partial capture
10-09 16:54	40m	-16 / -	G5MJF	- / -17	3	Partial capture
10-09 16:51	40m	- / -13	R6ZQ	+3 / -	2	✓ Closing fragment
10-09 16:46	40m	- / -10	M7RFR	-6 / -	2	Partial capture
10-09 16:43	40m	-18 / -16	RN3DDW/P	-12 / -	3	✓ Closing observed
10-08 15:01	40m	-15 / -12	RA6FCU/P	-4 / +2	4	✓ Full exchange observed
10-07 17:07	40m	-8 / -	UB1AUV	- / -14	2	Partial capture
10-07 15:40	40m	- / +2	R6DZL	-8 / -	2	✓ Closing fragment
10-07 15:39	40m	- / -2	DL2MED	-8 / -	5	Partial capture
10-07 15:34	40m	-14 / -15	R8CKV	-8 / -23	4	✓ Full exchange observed
10-07 15:30	40m	-16 / -10	R2FL	0 / -5	4	✓ Full exchange observed
10-06 17:50	40m	-17 / -7	9A7W	+1 / -	4	✓ Closing observed
10-06 17:45	40m	-12 / -9	R3KBY	-11 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
050900  +1 1305  RM4N RA5O 73
051900 -18  804  RM4N R5CB 73
173730 -18 1984  S59ST RM4N -07 (x2)
173900 -15 1984  HB0PA RM4N -08 (x2)
174030  -7 1984  VK2LAW RM4N -13
174200  -9 1984  HB0PA RM4N -20 (x2)
174615 -13 2141  BI8SCC RM4N -18
174830 -13 2281  VK2LAW RM4N -12 (x2)
140715 -15  827  RM4N RD9T 73
141030 -15 2297  BI8FRF RM4N -10
141945 -19 2237  RM4N R1BRY 73

10m

UTC    dB Audio  Message
114200  -8 2513  RM4N PT7YV R-18 (x4)

20m

UTC    dB Audio  Message
165315  -9 2250  YC2YIZ RM4N -20 (x2)
165445  -1 2250  RN2FQ RM4N -01 (x2)
165545 -13 2250  BG0FQU RM4N -17 (x3)
165730  +8 2250  RW6A/P RM4N -14
165745  +2 1076  RM4N RW6A/P R-14
165800  +4 2250  RW6A/P RM4N RR73 (x3)
170100  +3 2165  R4FDK RM4N -20
170130  -5 2165  RK6C RM4N -09
170315 +20 2600  RM4N RK6C R-14

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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