IZ5RKH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Locator transmitted in a decoded message: JN53

Receiver-side FT8 activity involving IZ5RKH, decoded by SO8OO in southeastern Poland. 769 related FT8 messages, 195 CQ messages, observed on 40m, 20m, across 27 UTC dates. Heard between 2026-05-12 and 2026-08-07.

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

769

Related messages

195

CQ messages

UTC dates heard

-10 dB

Mean decoder S/N

Bands

40m 20m

First seen: 2026-05-12
Last seen: 2026-08-07 15:48 UTC

Frequent QSO partners observed at SO8OO

Stations IZ5RKH worked most often, as logged from our receiver:

HA1BF · Hungary ×6 HA1ZW · Hungary ×5 F4HSB · France ×5 OZ7DR · Denmark ×4 DJ2MS · Fed. Rep. of Germany ×3 PD1DRE · Netherlands ×3 G4YLJ · England ×3 DL1UDO · Fed. Rep. of Germany ×3 PD4JOH · Netherlands ×3 YO5OSF · Romania ×3 IZ7FLN · Italy ×3 PD2WL · Netherlands ×3

Activity Heatmap

Locator transmitted by IZ5RKH

Approximate centre of JN53, decoded 2026-08-07 17:47 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	IZ5RKH S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-07 17:39	40m	-11 / -3	IU3WNP	-16 / -6	8	✓ Full exchange observed
08-07 17:37	40m	-11 / -13	LY1SR	-10 / -	3	Partial capture
08-07 17:33	40m	-11 / -	IK0BAL	- / -	3	Partial capture
08-07 17:32	40m	-10 / -	ON8PB	- / +6	3	✓ Closing fragment
08-07 17:31	40m	-14 / -	9A3PV	-12 / +6	4	✓ Full exchange observed
08-07 17:16	40m	-12 / -	IV3IEA	-15 / +5	8	✓ Closing observed
08-07 17:15	40m	- / -	RV3YN	-17 / -	2	Partial capture
08-07 17:15	40m	-12 / -	SQ9AWN	- / -	2	Partial capture
08-07 17:11	40m	-14 / -	IU0NAD	- / -13	3	✓ Closing fragment
08-07 17:09	40m	-17 / -	ON3MOH/P	- / -13	3	✓ Closing fragment
08-07 16:46	40m	- / -3	YO5OSF	-7 / -	3	Partial capture
08-07 16:44	40m	-12 / -	SV1DKR	- / -	2	✓ Closing fragment
08-07 16:40	40m	-13 / -	IN3GHP	- / +3	3	Partial capture
08-07 13:53	20m	-10 / -	HA1BF	- / +1	3	✓ Closing fragment
08-07 13:52	20m	-14 / -	HA1ZW	- / -9	2	✓ Closing fragment
08-07 13:50	20m	-12 / -	OZ7DR	- / -12	2	✓ Closing fragment
08-07 13:26	20m	-18 / -	PD9JPV	- / -3	2	Partial capture
08-07 12:55	20m	-8 / -	F4HSB	- / -	3	✓ Closing fragment
08-07 12:54	20m	- / -	IU3WNP	-16 / -	2	Partial capture
08-07 12:53	20m	-15 / -	DL5SN	- / -7	3	✓ Closing fragment
08-07 12:51	20m	-10 / -	DL9TNT	-24 / +8	5	✓ Full exchange observed
08-07 12:47	20m	-11 / -12	G7EVY	-9 / -10	12	Partial capture
08-07 12:47	20m	-20 / -	HB9HYO	- / +8	4	✓ Closing fragment
08-07 12:46	20m	- / -	RZ4FWA	-18 / -	3	Partial capture
08-07 12:44	20m	- / -18	IK4RVY	-15 / -	4	Partial capture
08-07 12:43	20m	-19 / -	DL9KM	- / -	2	✓ Closing fragment
08-07 12:41	20m	-16 / -18	IK4RVY	-22 / -	4	Partial capture
08-07 09:08	40m	- / +1	SN0GIP	-20 / -	2	✓ Closing fragment
08-07 07:56	40m	- / +1	DL9KM	-10 / -	3	✓ Closing fragment
08-07 07:41	40m	-24 / -	IV3LDF	- / +10	2	✓ Closing fragment
08-07 07:37	40m	-17 / -	F1IQH	- / +8	2	Partial capture
08-07 07:36	40m	-22 / -	CT7AUT	- / -16	2	✓ Closing fragment
08-07 07:26	40m	-17 / -	IZ5EBD	- / -	3	Partial capture
08-07 07:21	40m	- / -9	YO5OSF	-9 / -	5	✓ Closing fragment
08-03 13:51	20m	-8 / -9	IK2XYA	-8 / -	5	Partial capture
08-03 13:31	20m	-8 / +5	PD0GIP	-21 / -16	4	✓ Full exchange observed
08-03 13:21	20m	-8 / -	HB9HRR	- / +9	2	✓ Closing fragment
08-03 13:18	20m	-10 / -	IW3BYL	- / -	2	Partial capture
08-03 13:16	20m	-6 / -	PD2WL	-16 / -25	5	✓ Closing observed
08-03 13:14	20m	-12 / -	HA1BF	- / 0	2	Partial capture
08-03 13:11	20m	-12 / -	F4LQJ	- / -7	3	✓ Closing fragment
08-03 13:06	20m	-13 / -2	E74K	+4 / -	6	Partial capture
08-03 13:04	20m	-10 / -5	PD5GO	-20 / -15	3	✓ Full exchange observed
08-03 13:02	20m	-12 / -7	DL1UDO	-18 / -14	8	✓ Full exchange observed
08-03 08:07	40m	-18 / -	DJ0MAB	- / 0	2	Partial capture
07-26 12:43	20m	-12 / -	SP9CTW	- / -11	4	Partial capture
07-26 12:37	20m	-12 / -	M0CAA	- / -	3	Partial capture
07-26 12:33	20m	-16 / -	SP9CTW	- / -	3	Partial capture
07-26 12:32	20m	- / -	RA6OY	+2 / -	4	Partial capture
07-26 12:30	20m	-12 / -	HA1BF	- / -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
173745 -12 1356  LY1SR IZ5RKH JN53
173900 -17 1967  IZ5RKH IU3WNP -03
173915 -10 1370  IU3WNP IZ5RKH JN53
173945 -13 1370  CQ IZ5RKH JN53
174030 -16 1370  IZ5RKH IU3WNP JN55 (x2)
174115 -12 1368  IU3WNP IZ5RKH -06
174130 -16 1370  IZ5RKH IU3WNP R+00
174145 -12 1369  IU3WNP IZ5RKH RR73
174200 -16 1369  IZ5RKH IU3WNP 73
174445  -9 1799  DL1IP IZ5RKH JN53
174515 -14 1798  CQ IZ5RKH JN53
174530  -8 2691  IZ5RKH F1PBZ -12
174745 -14 1798  CQ IZ5RKH JN53
174800 -12 2282  IZ5RKH PD1LVK JO22

20m

UTC    dB Audio  Message
125545 -14 1614  IZ5RKH IU3WNP JN55
125600  -3 1756  F4HSB IZ5RKH +19 (x2)
125700  -9 1102  DJ2MS IZ5RKH JN53 (x2)
130100 -16 2004  SP9AUV IZ5RKH R-25
132645 -18 1575  PD9JPV IZ5RKH JN53 (x2)
135045 -10 1639  OZ7DR IZ5RKH R-12 (x2)
135245  -8 1369  HA1ZW IZ5RKH R-09 (x2)
135345  -9 1518  HA1BF IZ5RKH JN53 (x3)

Decoder S/N history by band

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