RA4HTH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO53

Receiver-side FT8 activity involving RA4HTH, decoded by SO8OO in southeastern Poland. 291 related FT8 messages, 48 CQ messages, observed on 80m, 40m, 20m, across 26 UTC dates. Heard between 2026-05-28 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

291

Related messages

CQ messages

UTC dates heard

-8 dB

Mean decoder S/N

Bands

80m 40m 20m

First seen: 2026-05-28
Last seen: 2026-08-23 15:53 UTC

Frequent QSO partners observed at SO8OO

Stations RA4HTH worked most often, as logged from our receiver:

OH5KNL · Finland ×2 RK6MC · European Russia ×2 UA9FGJ · European Russia R7IA · European Russia RT2P · European Russia ES2AJ · Estonia UA9FKM · European Russia RA3LBW · European Russia RA3ZGT · European Russia RN3RHQ · European Russia UA0TP · Asiatic Russia R3UG · European Russia

Activity Heatmap

Locator transmitted by RA4HTH

Approximate centre of LO53, decoded 2026-08-23 17:52 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	RA4HTH S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 17:52	40m	-11 / -	R3ZBH	0 / -	3	✓ Closing observed
08-22 18:15	80m	-1 / -7	RA3DEP	-2 / +4	5	✓ Full exchange observed
08-22 18:03	80m	-12 / -	RW9H/M	- / -13	4	Partial capture
08-22 17:57	80m	-6 / +6	RA6LTD	-12 / -3	5	✓ Full exchange observed
08-22 17:56	80m	-8 / -1	RA4FUT	-15 / +8	5	✓ Full exchange observed
08-22 17:55	80m	-8 / -3	R4UA	+1 / -	6	✓ Full exchange observed
08-22 17:53	80m	-4 / -	RA4HPQ	- / -3	3	✓ Closing fragment
08-22 17:38	40m	-10 / -	R4DI	-8 / -6	2	✓ Closing observed
08-22 17:19	40m	- / -7	R7IA	-8 / -	2	✓ Closing fragment
08-21 16:03	40m	-17 / 0	R3ICU	-11 / -10	5	✓ Full exchange observed
08-21 16:01	40m	-12 / +2	RA3M	-10 / -12	3	✓ Full exchange observed
08-21 15:31	40m	-8 / 0	R4IQ	-14 / -2	3	Partial capture
08-16 18:00	40m	- / +7	R3WDW	-12 / -	3	✓ Closing fragment
08-07 18:31	80m	-6 / -	UA0TP	- / -20	2	✓ Closing fragment
08-07 18:28	80m	-3 / -5	UA4LCC	-14 / +1	4	✓ Full exchange observed
08-07 18:25	80m	0 / -6	R2UC	+6 / +7	7	✓ Full exchange observed
08-07 18:21	80m	-1 / -2	RA3RGQ	-14 / -	5	✓ Closing observed
08-07 18:21	80m	-5 / -	HA7CH	-7 / -11	3	✓ Closing observed
08-07 18:20	80m	-1 / -	SP6FME	+12 / -6	3	Partial capture
08-07 18:17	80m	-12 / -7	SV1EKI	-8 / -17	7	✓ Full exchange observed
08-07 18:15	80m	- / -6	LZ2INP	+6 / -	5	✓ Closing fragment
08-07 18:14	80m	-5 / 0	R3UG	-6 / -2	3	✓ Full exchange observed
08-07 18:14	80m	- / -9	RA3ZOM	-4 / -	4	✓ Closing fragment
08-07 18:14	80m	- / -	RZ4M	-10 / -	2	Partial capture
08-07 18:10	80m	-6 / -	UA1CEI	-7 / -12	2	✓ Closing observed
08-07 17:53	80m	-14 / -4	R7BO	-8 / -4	5	✓ Full exchange observed
08-07 17:51	80m	-6 / 0	RN4ACX	-8 / +4	5	✓ Full exchange observed
08-07 17:32	40m	-21 / -2	RW6MZ	-22 / +10	3	✓ Full exchange observed
08-05 18:44	80m	-7 / +3	RD3MF	-3 / -	6	✓ Full exchange observed
08-05 18:40	80m	0 / -5	R3HH	+7 / +8	6	✓ Full exchange observed
08-05 18:38	80m	-5 / -	RL3F	-6 / +4	4	✓ Closing observed
08-05 18:36	80m	-1 / -7	R6ZEJ	-2 / -	5	✓ Closing observed
08-05 18:36	80m	- / -25	RC6OZ	-4 / -	3	✓ Closing fragment
08-05 18:34	80m	-12 / -2	R9HAG	-10 / +1	5	✓ Full exchange observed
07-24 18:06	40m	-21 / -1	RA3LBW	-9 / +4	5	✓ Full exchange observed
07-24 18:00	40m	- / -19	IK4LZH	-9 / -	3	Partial capture
07-24 17:56	40m	-18 / -	RC7LX	- / -22	2	Partial capture
07-24 17:51	40m	- / -2	RW9WJ	-13 / -	3	✓ Closing fragment
07-23 18:46	80m	-8 / -6	RN7T	+3 / +9	5	✓ Full exchange observed
07-23 18:42	80m	- / -6	UB6OAK	-12 / -	5	✓ Closing fragment
07-23 18:41	80m	-11 / -10	SP4SHL	+5 / -17	5	✓ Full exchange observed
07-23 18:39	80m	-6 / +1	R2SDZ	0 / +7	6	✓ Full exchange observed
07-23 18:39	80m	-4 / 0	RK6MC	+9 / -	5	✓ Full exchange observed
07-21 18:40	80m	- / 0	UA9FFV	-9 / -	3	✓ Closing fragment
07-21 18:39	80m	-3 / -	RG5A	+9 / -	3	✓ Closing observed
07-21 18:34	80m	- / -	OM7FS	+2 / -	3	Partial capture
07-21 17:50	40m	- / -12	IQ4JO	+2 / -	3	✓ Closing fragment
07-21 17:35	40m	- / -6	E70SZ	-14 / -	2	Partial capture
07-18 18:20	80m	-14 / -1	R7CD	+9 / +8	5	✓ Full exchange observed
07-18 18:18	80m	-14 / -	R9JAC	- / -1	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
160145  -9 1124  RA4HTH RA3M RR73
160300 -12  863  R9DT RA4HTH LO53
160345 -13 2086  RA4HTH R3ICU KO66
160400 -17  862  R3ICU RA4HTH -10
160415 -11 2086  RA4HTH R3ICU R+00
160430 -17  863  R3ICU RA4HTH RR73
160445  -8 2086  RA4HTH R3ICU 73
171945  -6 2383  RA4HTH R7IA -07 (x2)
172015 -15 1929  RA4HTH R2HB KO85
173845 -10 1879  R4DI RA4HTH R-06
173900  -8 1880  RA4HTH R4DI RR73
175200 -11 1976  R3ZBH RA4HTH LO53
175245  +1 1082  RA4HTH R3ZBH +12 (x2)

80m

UTC    dB Audio  Message
180300  -8 1675  RW9H/M RA4HTH LO53 (x4)
181430  -2 2316  CQ RA4HTH LO53 (x2)
181515  -3 2317  RA4HTH RA3DEP KO85
181530  +0 2316  RA3DEP RA4HTH +04
181545  -2 2316  RA4HTH RA3DEP R-07
181600  -2 2316  RA3DEP RA4HTH RR73
181615  -1 2316  RA4HTH RA3DEP 73
181630  +0 2315  CQ RA4HTH LO53 (x4)

20m

UTC    dB Audio  Message
181315  -8  664  CR7BRV RA4HTH LO53 (x3)
181645 -16 1475  TN8GD RA4HTH R-09 (x2)
181800 -10  538  RA4HTH UA3IHJ KO67 (x3)
181915 -14 1475  TN8GD RA4HTH R-09
182015  -8  538  UA3IHJ RA4HTH +05 (x2)
144745 -23 1862  YE5TA RA4HTH LO53
153200 -19 1561  RA4HTH YO3VU -05
154545 -10 2532  RA4HTH SP6AXW JO80
124015  -8  465  XU7O RA4HTH LO53

Decoder S/N history by band

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