RM5F — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO85

Receiver-side FT8 activity involving RM5F, decoded by SO8OO in southeastern Poland. 2,627 related FT8 messages, 23 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 81 UTC dates. Heard between 2026-05-25 and 2026-08-23.

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

2,627

Related messages

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-25
Last seen: 2026-08-23 19:19 UTC

Frequent QSO partners observed at SO8OO

Stations RM5F worked most often, as logged from our receiver:

R2EA/P · European Russia ×7 R4FDD · European Russia ×6 RA6OD · European Russia ×5 R9CS/P · European Russia ×4 US1EA · Ukraine ×4 UE6DR · European Russia ×4 R2HB · European Russia ×4 R6ZCE · European Russia ×4 RT6C · European Russia ×4 RQ6Z · European Russia ×3 UB3YGA · European Russia ×3 RG5A · European Russia ×3

Activity Heatmap

Locator transmitted by RM5F

Approximate centre of KO85, decoded 2026-08-23 20:45 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 UTC	Band	RM5F S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 20:55	40m	- / -7	R2HM	+6 / -	2	✓ Closing fragment
08-23 20:45	40m	-2 / -	RA3APK	- / -11	3	✓ Closing fragment
08-23 20:31	40m	+2 / -	<...>	- / -9	2	Partial capture
08-23 20:21	40m	+1 / -	SV1DKR	-6 / -	2	✓ Closing observed
08-23 20:20	40m	+4 / -	R1CCX	- / +2	2	✓ Closing fragment
08-23 19:25	40m	-6 / -	UA0DAL	- / -	3	Partial capture
08-22 01:06	160m	-4 / +2	UA6BEW	-8 / -14	5	✓ Full exchange observed
08-21 21:57	160m	-7 / -7	LB7ZG	-16 / -15	4	✓ Full exchange observed
08-21 21:56	160m	-9 / -18	F5BZB	-2 / -16	5	✓ Full exchange observed
08-21 21:55	160m	-8 / -	RU3NCW	- / -17	3	✓ Closing fragment
08-21 21:05	160m	-10 / -	UA0SCF	- / -	6	Partial capture
08-21 20:27	160m	-13 / -	RA9MAI	-15 / -15	4	✓ Closing observed
08-21 20:17	160m	-6 / -7	RU6L	-12 / -7	4	✓ Full exchange observed
08-21 19:36	160m	-10 / -9	R7IA	-1 / -6	5	✓ Full exchange observed
08-21 19:33	160m	-8 / -	R3DEE	- / -11	3	✓ Closing fragment
08-21 19:22	160m	-7 / -	UA3UBV	-13 / 0	7	✓ Full exchange observed
08-21 19:19	160m	-8 / -2	UA3LKM	-21 / -9	3	Partial capture
08-21 19:12	160m	-11 / -3	RY9C	-4 / -3	5	✓ Full exchange observed
08-21 19:10	160m	-10 / -	RD3AD	-17 / +1	4	✓ Closing observed
08-21 19:02	80m	+7 / -	RA3XDX	- / -	2	Partial capture
08-21 19:00	160m	-6 / -5	R2EA/P	-16 / -20	5	✓ Full exchange observed
08-21 18:57	80m	0 / -6	RA3RGQ	-2 / -5	5	✓ Full exchange observed
08-21 18:52	80m	0 / -	RW5CW	- / -	5	Partial capture
08-21 18:48	80m	-5 / -	RY9C	- / -	5	Partial capture
08-21 18:43	80m	-5 / -	RW5CW	- / -	5	Partial capture
08-21 18:37	80m	-2 / -	R2DRE	- / -3	3	✓ Closing fragment
08-21 18:30	80m	0 / -	UB0SMX/P	- / -	3	Partial capture
08-21 18:24	80m	- / +1	RZ3DW	+7 / -	2	Partial capture
08-21 18:14	80m	0 / -14	LZ3AN	-1 / -13	5	✓ Full exchange observed
08-21 18:13	80m	-2 / +6	RA1AGX	+12 / -1	5	✓ Full exchange observed
08-21 18:07	80m	+3 / -	R3WBG	- / -10	3	✓ Closing fragment
08-21 18:05	80m	+4 / -	R7LB	- / -	2	Partial capture
08-21 18:00	80m	+4 / -2	UF4S/P	-12 / -2	6	✓ Full exchange observed
08-21 17:58	80m	+6 / -	RA3RGQ	- / -	4	Partial capture
08-21 17:50	80m	+8 / +1	RA5CW	-9 / +5	4	✓ Full exchange observed
08-21 17:47	80m	+7 / -	UF4S/P	- / -	7	Partial capture
08-21 17:45	80m	+9 / -	RA5CW	- / -	2	Partial capture
08-21 17:39	80m	+11 / -	RW7B	+4 / -6	4	✓ Closing observed
08-21 03:58	40m	-3 / -15	UA1AIR	-18 / -	4	✓ Closing observed
08-21 03:56	40m	+1 / -	FM4TI	- / -	2	Partial capture
08-21 03:38	40m	+2 / -	R9OX	- / -17	2	✓ Closing fragment
08-21 03:35	40m	0 / -	FM4TI	- / -	2	Partial capture
08-21 03:23	40m	+7 / -	FM4TI	- / -	2	Partial capture
08-21 03:09	40m	+4 / -	FM4TI	- / -	4	Partial capture
08-21 00:26	80m	-6 / -	UA2FFD	- / -22	2	Partial capture
08-21 00:00	80m	-10 / -2	R9CB	-5 / -2	6	✓ Full exchange observed
08-20 23:18	80m	+7 / -3	R9LE	-14 / 0	5	✓ Full exchange observed
08-20 22:19	80m	+2 / +3	R4HHN	-9 / -3	6	✓ Full exchange observed
08-20 21:26	80m	-4 / -	RU1QD	- / -11	4	✓ Closing fragment
08-20 21:25	80m	+2 / -2	R5FQ	+4 / -5	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
192600  -6 1014  UA0DAL RM5F KO85 (x2)
202015  +5 1022  R1CCX RM5F R+02 (x2)
202145  +1 1022  SV1DKR RM5F RR73
202200  -6 1688  RM5F SV1DKR 73
203115  +2 1030  <...> RM5F KO85 (x2)
204500  -4 1030  RA3APK RM5F KO85 (x3)
205500  +7 1678  RM5F R2HM -07 (x2)
211930  +2  641  RM5F R8CW/4 +16
211945 -11 1030  R1530IG RM5F R+00

160m

UTC    dB Audio  Message
215645  -3  854  RM5F F5BZB -18
215700  -9 1063  F5BZB RM5F R-16
215715  -5  855  RM5F F5BZB RR73
215730  -9 1063  LB7ZG RM5F -15
215745  +0  854  RM5F F5BZB RR73
215745 -16 1362  RM5F LB7ZG R-07
215800  -5 1063  LB7ZG RM5F RR73
215815 -16 1361  RM5F LB7ZG 73
221100 -16 1063  <...> RM5F R-03
225300  -8 1063  PR8ZOI/R RM5F KO85
010615  -1 1063  UA6BEW RM5F KO85
010700  -3 1159  RM5F UA6BEW +02
010715  -5 1063  UA6BEW RM5F R-14
010730 -12 1159  RM5F UA6BEW RR73
010745  -5 1063  UA6BEW RM5F 73

80m

UTC    dB Audio  Message
185300  +1  769  RW5CW RM5F KO85 (x4)
185515  -2  769  RA3XDX RM5F KO85
185645  -1  769  RW5CW RM5F KO85
185730  +0  769  RA3RGQ RM5F KO85 (x2)
185845  -1 1018  RM5F RA3RGQ -06
185900  +0  769  RA3RGQ RM5F R-05
185915  -2 1018  RM5F RA3RGQ RR73
190045  +4  769  RM5F RA6OD KN97
190215  +6  669  RA3XDX RM5F KO85 (x2)
190500  +5  744  RA6ANN RM5F KO85

20m

UTC    dB Audio  Message
092730  -9  655  UD1I RM5F R-09 (x2)
093100 -10  655  R9FDM RM5F KO85
093200  -4  655  R4AGO RM5F KO85 (x3)
093330 -11  655  R9FDM RM5F KO85 (x5)
094900  -2  655  R1QD RM5F KO85 (x2)
065200  -1 2630  RM5F RR73; R3PJ <...> -04 (x2)

10m

UTC    dB Audio  Message
092815 -16  791  R1NBG RM5F R+01
103915 -21 1554  RM5F R4HFX -08
105830 -18 2362  RM5F RN3QQT -03
140330  +6 2541  RM5F 9A3K JN65 (x3)
074315 -20 1609  RM5F UA6AKW RR73
171645 -23 1704  RM5F RD7O +03
172830 -11 1149  RM5F UA3OO KO90 (x3)
173600 -23 1573  RM5F DN9AD JO52 (x3)
180830 -20 1510  RM5F RX6APY -06

Decoder S/N history by band

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