RM4W — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO66

Receiver-side FT8 activity involving RM4W, decoded by SO8OO in southeastern Poland. 207 related FT8 messages, 12 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 24 UTC dates. Heard between 2026-05-24 and 2026-08-21.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

207
Related messages
12
CQ messages
24
UTC dates heard
-10 dB
Mean decoder S/N

Bands

80m 20m 40m 10m 160m
First seen: 2026-05-24
Last seen: 2026-08-21 15:55 UTC

Frequent QSO partners observed at SO8OO

Stations RM4W worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by RM4W

Approximate centre of LO66, decoded 2026-08-21 18:14 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandRM4W S/NCounterpartCounterpart S/NMsgsCapture
08-21 18:12 80m -4 / - UB0SMX/P - / -5 3 ✓ Closing fragment
08-21 18:07 80m -2 / - UB0SMX/P - / - 3 Partial capture
08-21 17:54 160m - / -9 RT2P -15 / - 2 ✓ Closing fragment
08-21 17:29 40m -14 / - R4KR -11 / -11 5 ✓ Closing observed
08-20 05:42 20m -10 / - RM6OG -12 / -16 3 ✓ Closing observed
08-19 18:39 160m -15 / - R3DFE/M - / - 2 Partial capture
08-19 17:13 20m -7 / - UA3IDQ - / -8 4 ✓ Closing fragment
08-19 17:12 20m -4 / - R3ICU - / -10 2 ✓ Closing fragment
08-19 17:09 20m -2 / - RO6OT - / - 2 Partial capture
08-14 18:23 80m -8 / - <...> - / -7 3 Partial capture
08-14 18:21 80m -15 / - R6DOB/7 - / - 2 Partial capture
08-12 17:34 20m - / - HB9GVH -17 / - 3 Partial capture
08-12 17:32 20m -8 / - YO5PHL - / -13 2 ✓ Closing fragment
08-12 17:29 20m -11 / - R9AL - / -26 4 ✓ Closing fragment
08-12 17:26 20m -11 / - UA4PBT - / - 3 Partial capture
08-12 10:38 10m - / +3 RA6ATZ -18 / - 2 ✓ Closing fragment
08-11 18:20 10m - / - R3EDI -12 / - 2 ✓ Closing fragment
08-10 17:23 20m -16 / - R4HHP - / - 2 Partial capture
07-25 19:13 80m -8 / - RC6BB - / -14 4 ✓ Closing fragment
07-25 19:05 80m -6 / -5 UA4NCX -10 / -5 5 ✓ Full exchange observed
07-25 19:05 80m -8 / - UA9ZZ -20 / -8 5 ✓ Closing observed
07-25 18:57 80m -3 / -9 RC6OD +2 / -2 6 ✓ Full exchange observed
07-25 18:53 80m -22 / -12 R6OIZ -10 / -4 4 ✓ Full exchange observed
07-25 18:53 80m - / -2 UA1AEL -4 / - 2 Partial capture
07-25 18:51 80m -10 / - <...> - / -7 2 Partial capture
07-25 04:46 20m -8 / - WB6JJJ - / - 2 Partial capture
07-25 04:06 20m -7 / - YV4PPC - / - 2 Partial capture
07-25 04:00 20m -8 / - KC5UZI - / - 2 Partial capture
07-25 03:52 20m -12 / - KE9CKM - / -12 2 ✓ Closing fragment
07-25 03:50 20m +2 / - HI8ERQ - / -14 3 ✓ Closing fragment
07-25 03:39 20m +4 / - R6OIZ - / -8 4 ✓ Closing fragment
07-24 18:20 40m -11 / - RM4N -18 / +5 2 ✓ Closing observed
07-19 07:17 10m - / -20 IZ0EAE -15 / - 2 ✓ Closing fragment
07-19 05:53 10m - / - RW3K -16 / - 4 ✓ Closing fragment
07-19 05:53 10m - / - UA3RA -8 / - 2 ✓ Closing fragment
07-19 05:24 10m - / -10 R9SS -20 / - 2 ✓ Closing fragment
07-18 18:22 10m - / -3 R6OD 0 / - 3 ✓ Closing fragment
07-18 18:11 10m -15 / - LU6DK - / - 2 Partial capture
07-18 18:04 80m -15 / - R9DZ - / +3 2 ✓ Closing fragment
07-18 18:02 80m -17 / - RK6OV - / - 3 ✓ Closing fragment
07-18 17:41 10m - / +4 RA3ZGT -14 / - 2 ✓ Closing fragment
07-18 17:31 20m - / +1 E70SZ 0 / - 2 ✓ Closing fragment
07-17 18:06 10m - / - IU4PPL -19 / - 2 ✓ Closing fragment
07-17 18:06 10m - / -18 RA9AJ -17 / - 5 ✓ Closing fragment
07-17 04:32 20m - / +5 RN6MA -12 / - 2 ✓ Closing fragment
07-11 04:23 20m -14 / - R3DMS -21 / -15 3 ✓ Closing observed
07-11 04:19 20m - / -3 R3DMS -14 / - 2 Partial capture
07-05 05:10 20m -7 / +4 RA9QBR -19 / -14 2 Partial capture
07-05 05:08 20m -13 / - R6OAF - / -12 3 ✓ Closing fragment
07-04 18:52 40m - / -8 R6SS -7 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
191500  -7 2167  RC6BB RM4W R-14 (x2)
182115 -16 1446  <R6DOB/7> RM4W LO66 (x2)
182315  -5  750  <...> RM4W LO66 (x3)
182430  -6 2082  RM4W RR73; UA9FFV <...> -14
180715  -1  407  UB0SMX/P RM4W LO66 (x6)
181445  -8  557  UF4S/P RM4W LO66
160m 
UTC    dB Audio  Message
192145  -6  477  RM4W R7OP RRR
183945 -15 2200  <R3DFE/M> RM4W LO66 (x2)
184545 -23 1934  <...> RM4W LO66
175430 -14 2017  RM4W RT2P -09 (x2)
40m 
UTC    dB Audio  Message
182900  -9  681  RM4W R6OG -04 (x2)
182945 -10  681  R6OG RM4W 73
185245  -8  733  RM4W R6SS RR73 (x2)
180030  -7 2604  RM4W RC6OT RR73
043130  -9  398  RM4W YO4NT RR73
182015 -11  679  RM4N RM4W R+05
182030 -18 2028  RM4W RM4N RR73
182115 -10  679  YO4LUP RM4W -05
172945 -16 2125  R4KR RM4W LO66 (x3)
173100 -11  730  RM4W R4KR RR73
173115 -13 2126  R4KR RM4W 73
20m 
UTC    dB Audio  Message
173415 -20 1283  RM4W HB9GVH JN47 (x3)
165415  +2 2520  RM9WU RM4W LO66
170930  +2  641  RO6OT RM4W LO66 (x2)
171230  -5 2581  R3ICU RM4W -10 (x2)
171330 -10 2581  UA3IDQ RM4W LO66 (x4)
054245 -11 2241  RM6OG RM4W R-16
054330 -12 2088  RM4W RM6OG RR73
054345  -8 2241  RM6OG RM4W 73
10m 
UTC    dB Audio  Message
055300 -10  635  RM4W UA3RA +15
055300 -16 1382  RM4W RW3K +23
055330  -6  635  RM4W UA3RA RR73
055330 -13 1382  RM4W RW3K +23 (x3)
064315 -22 2196  RK1N RM4W 73
065430  -6 1135  RM4W RZ3ZY RR73
071700 -16 1050  RM4W IZ0EAE R-20 (x2)
182030 -11 2032  RM4W R3EDI +22 (x2)
102400 -14  610  RM4W R7RAG -06
103815 -20 1833  RM4W RA6ATZ +03 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.