F4IVG — 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: France Most frequent locator attributed to this token: JN05

Receiver-side FT8 activity involving F4IVG, decoded by SO8OO in southeastern Poland. 3,354 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 50 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-18.

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 3,354 FT8 messages attributed to F4IVG as the transmitting token by decoded message structure across 50 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 80 m (8%) and 40 m (8%). The busiest six-hour window was 17:00-23:00 UTC, containing 46% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.

Overview

3,354

Messages attributed

UTC dates decoded

297

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 285 60m · 51 40m · 257 20m · 2,696 10m · 65

First attributed message: 2026-06-06
Last attributed message: 2026-10-18 14:05 UTC

Observed FT8 message patterns

Attributed sample: 3,354 messages
Active dates: 50 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -18 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 528, moderate (-15 to -9 dB) 826, strong (≥ -8 dB) 2,000.

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 F4IVG in decoded directed-looking exchanges:

DL6RS · Fed. Rep. of Germany ×3 DF3QL · Fed. Rep. of Germany ×2 DL1SWB · Fed. Rep. of Germany ×2 IU3QJF · Italy ×2 M7KEV · England ×2 R6HD · European Russia ×2 SP2KW · Poland ×2 DN9AD · Fed. Rep. of Germany EA8WU · Canary Islands 2E0EWM · England 2E0FUM · England 4X5UK · Israel

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 F4IVG

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: JN05 · 1,375 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,626 km (approx.)
Last such locator decoded: 2026-10-18 14:05 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	F4IVG S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 14:10	40m	- / 0	ON6OM	-14 / -	2	Partial capture
10-15 23:58	80m	-19 / -3	DL7ROB	-18 / -21	5	✓ Full exchange observed
10-15 23:56	80m	- / -	DL9KM	-1 / -	7	Partial capture
10-15 23:52	80m	-13 / -1	PE0FK	+15 / -	4	✓ Closing observed
10-15 23:48	80m	-12 / +1	ON8FAB	-6 / +2	6	✓ Full exchange observed
10-15 23:46	80m	-10 / -	M7LYG	- / -7	6	Partial capture
10-15 23:42	80m	-10 / -21	UA3IAP	+2 / -10	9	Partial capture
10-15 23:41	80m	-13 / -	GM6URC	-4 / -	2	✓ Closing observed
10-15 23:40	80m	-10 / -	Z61DX	- / -6	2	Partial capture
10-15 23:34	80m	- / -9	PG7R	-5 / -	3	✓ Closing fragment
10-15 23:33	80m	- / -9	EC3A	-14 / -	2	Partial capture
10-15 23:32	80m	-1 / -5	SP9EVL	+1 / -23	4	✓ Full exchange observed
10-15 23:29	80m	- / -11	EC3A	-18 / -	2	Partial capture
10-15 23:28	80m	- / -5	SP9FOW	-4 / -	2	✓ Closing fragment
10-15 23:23	80m	- / -	DO1OAS	-2 / -	2	Partial capture
10-15 23:22	80m	- / +2	SP5BYC	+12 / -	2	✓ Closing fragment
10-15 23:11	80m	- / -5	G6PWS	-6 / -	2	✓ Closing fragment
10-15 23:06	80m	- / -	DL9KM	-5 / -	7	Partial capture
10-15 23:01	80m	+1 / -20	UA3IAP	-2 / -13	7	✓ Full exchange observed
10-15 23:00	80m	-1 / -15	OH4LRP	-9 / -7	6	✓ Full exchange observed
10-15 22:56	80m	-4 / -	IW9DNS	- / -15	6	Partial capture
10-15 22:55	80m	- / -8	EC3A	-13 / -	2	Partial capture
10-15 22:55	80m	-1 / -2	LY7T	+14 / 0	4	✓ Full exchange observed
10-15 22:52	80m	-1 / -	OH4JFN	- / -11	5	Partial capture
10-15 22:50	80m	-2 / -19	7Z1DH	-24 / -5	4	✓ Full exchange observed
10-15 22:48	80m	-3 / -	RA3WPF	- / -13	4	Partial capture
10-15 22:45	80m	-4 / -11	SP9AU	-8 / -	3	✓ Closing observed
10-15 22:43	80m	-6 / -	IU4UWH	- / -21	2	✓ Closing fragment
10-15 22:42	80m	- / -8	EC3A	-18 / -	4	Partial capture
10-15 22:41	80m	-5 / -	CU2DX	- / -8	3	✓ Closing fragment
10-15 22:40	80m	-1 / -	RA0AF	- / -16	2	Partial capture
10-15 22:37	80m	- / -	DO1OAS	-6 / -	3	Partial capture
10-15 22:36	80m	0 / -	G3YPP	- / -6	3	✓ Closing fragment
10-15 22:33	80m	-1 / -	SQ9RIM	- / -5	5	Partial capture
10-15 22:30	80m	-2 / -6	M0PEL	-13 / -8	5	✓ Full exchange observed
10-15 22:29	80m	- / -10	EC3A	-22 / -	2	Partial capture
10-15 22:28	80m	-1 / -5	OH8WW	+2 / -5	5	✓ Full exchange observed
10-15 22:15	80m	- / -	DL1UDO	-3 / -	4	Partial capture
10-15 22:03	80m	-19 / -3	DK2PH	+10 / -	5	✓ Closing observed
10-15 22:03	80m	- / -	IK1NPP	0 / -	2	Partial capture
10-15 22:02	80m	- / -12	LA4NM	-3 / -	4	✓ Closing fragment
10-15 22:00	80m	- / -7	UA6LQZ	-8 / -	3	✓ Closing fragment
10-15 21:57	80m	- / -	DK9WI	+10 / -	2	✓ Closing fragment
10-15 21:48	80m	- / -14	G0RVY	-4 / -	2	✓ Closing fragment
10-15 21:36	80m	- / -	ON4MAP	-14 / -	4	Partial capture
10-15 21:34	80m	- / -	DO5PY	-7 / -	5	Partial capture
10-15 21:30	80m	- / -	DO1OAS	-9 / -	11	Partial capture
10-15 21:30	80m	- / -7	F1HSY	-6 / -	2	✓ Closing fragment
10-15 21:27	80m	-19 / -	W1MK	- / -22	2	Partial capture
10-15 21:25	80m	-21 / -	YO2BTW	+1 / -	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
161245 -15 1999  S57CT F4IVG -02
161300  +3 2000  F4IVG S57CT R+01
161315 -12 1999  S57CT F4IVG RR73
161330  +2 2000  F4IVG S57CT 73
161345 -16 1999  CQ F4IVG JN05 (x2)
161445 -13 2000  F4MNP F4IVG -06
161545 -12 1999  CQ F4IVG JN05                         a1
161645 -16 2000  DF5VB F4IVG -02 (x3)
164130 -16 2075  F4IVG F1GTM JN26
140515 -24 1823  CQ F4IVG JN05
141030 -14  943  F4IVG ON6OM +00 (x2)

10m

UTC    dB Audio  Message
095730 -21 1610  CQ F4IVG JN05 (x4)
100100 -24 1610  DL7UKM F4IVG -05 (x2)
100515  -4 1222  F4IVG EA3AKY JN01
100830 -24 1609  CQ F4IVG JN05 (x2)
100930 -16 2113  JA9NFO F4IVG -21
101200 -21 2113  DN9AD F4IVG RR73
101300 -18 2113  IZ6BYS F4IVG -10 (x3)
112615 -21 2083  UA3QQG F4IVG JN05

80m

UTC    dB Audio  Message
235645 -17 1800  CQ F4IVG JN05
235700  +0 1342  F4IVG DL9KM JN68
235715 -15 1800  CQ F4IVG JN05
235730  +2 1342  F4IVG DL9KM JN68
235745 -16 1800  CQ F4IVG JN05
235800  +1 1342  F4IVG DL9KM JN68
235800 -18 1799  F4IVG DL7ROB JN58
235815 -20 1800  DL7ROB F4IVG -21
235830  -2 1342  F4IVG DL9KM JN68
235830 -16 1800  F4IVG DL7ROB R-03
235845 -18 1800  DL7ROB F4IVG RR73
235900  +0 1342  F4IVG DL9KM JN68
235900 -19 1800  F4IVG DL7ROB 73
235915 -17 1800  CQ F4IVG JN05 (x2)

60m

UTC    dB Audio  Message
175400 -12 1432  <F4IVG> OE6/HB9DGR
175400 -14 1137  F4IVG IU3UQW R+06
175400  -3 1042  F4IVG F9IE R+23
175415  +0 1352  IU3UQW F4IVG RR73
175430 -13 1137  F4IVG IU3UQW 73
175430  -4 1042  F4IVG F9IE R+23
175515  -4 1351  CQ F4IVG JN05
175530 -18 1985  F4IVG F4HSB JN37 (x3)
175645  +0 1310  F4HSB F4IVG -01
175700 -14 1985  F4IVG F4HSB R+22 (x2)
175845  -2 1310  CQ F4IVG JN05 (x2)

160m

UTC    dB Audio  Message
210645 -18 1846  F4IVG F6IRA R-08

20m

UTC    dB Audio  Message
104000 -10  844  F4IVG PE2K JO22
104015  -4 1142  DF3QL F4IVG RR73
104030 -16  845  F4IVG PE2K JO22
104030  -4 2521  F4IVG DF3QL 73
104045  +4 1142  CQ F4IVG JN05
104100  -2 1142  F4IVG R7OV KN87
104100 -13  844  F4IVG PE2K JO22
104115  -4 1141  CQ F4IVG JN05
104130  -1 1142  F4IVG R7OV KN87
104145  -2 1142  CQ F4IVG JN05
104200  +0 1142  F4IVG R7OV KN87
104215  -5 1142  CQ F4IVG JN05
104230  -7 1142  F4IVG R7OV KN87
104245  -6 1142  CQ F4IVG JN05 (x2)

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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