I7DFV — 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: Italy Most frequent locator attributed to this token: JN81

Receiver-side FT8 activity involving I7DFV, decoded by SO8OO in southeastern Poland. 720 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-21.

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 720 FT8 messages attributed to I7DFV as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 60 m (32%) and 40 m (10%). Most decodes (61%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was -0.4 dB.

Overview

720

Messages attributed

UTC dates decoded

Active 15-min windows

-0.4 dB

Estimated median S/N

Bands

160m · 10 80m · 334 60m · 233 40m · 75 20m · 55 10m · 13

First attributed message: 2026-06-10
Last attributed message: 2026-10-21 19:30 UTC

Observed FT8 message patterns

Attributed sample: 720 messages
Active dates: 34 UTC dates
Estimated median S/N: -0.4 dB
Estimated 10th-90th percentile: -10 to +10.5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 85, strong (≥ -8 dB) 614.

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 I7DFV in decoded directed-looking exchanges:

RI1FJZ · Franz Josef Land ×3 KH8WW · American Samoa ×2 ES6DO · Estonia KL7J · Alaska YN9ZDJ · Nicaragua 9H6C · Malta 9T0MD · Dem. Rep. of the Congo ER5GB · Moldova 4U1UN · United Nations HQ A93MO · Bahrain BA5AN · China BX4AP · Taiwan

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 I7DFV

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: JN81 · 579 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,009 km (approx.)
Last such locator decoded: 2026-10-21 19:30 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	I7DFV S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 19:24	60m	+2 / -	7P8GE	- / -	12	Partial capture
10-21 18:54	60m	0 / -	7P8GE	- / -	23	Partial capture
10-21 04:33	80m	+11 / -	LU1WFU	- / -26	11	Partial capture
10-21 03:57	80m	+8 / -	P4/WE9V	- / -8	2	Partial capture
10-21 03:51	40m	- / -	F5PBG	-8 / -	2	Partial capture
10-21 03:49	40m	-2 / -	F5OYA/P	- / +1	2	Partial capture
10-17 04:59	80m	+6 / -	VP2MAW	- / -	7	Partial capture
10-17 04:50	80m	+10 / -	VP2MAW	- / -22	12	Partial capture
10-14 04:50	80m	+9 / -	EI2IXB	- / -	13	Partial capture
10-14 04:03	80m	- / -	EB3JT	-14 / -	5	Partial capture
10-14 04:02	80m	- / 0	YO4NF	+10 / -	2	Partial capture
10-14 04:01	80m	+12 / -	P36UKE/R	- / -13	2	Partial capture
10-13 06:31	80m	-1 / -	C5R	- / -	5	Partial capture
10-13 06:29	80m	+4 / -	LU8EKC	- / -	3	Partial capture
10-11 19:44	60m	+11 / -	H49A	- / -	10	Partial capture
10-11 18:34	60m	-5 / -	H49A	- / -26	28	Partial capture
10-11 17:58	60m	-5 / -	H49A	- / -26	24	Partial capture
10-11 17:43	60m	-7 / -	H49A	- / -	21	Partial capture
10-11 17:38	60m	0 / -	H49A	- / -	4	Partial capture
10-11 17:35	60m	-5 / +7	9H6C	-21 / -1	5	✓ Full exchange observed
10-11 17:28	60m	-6 / -	H49A	- / -	2	Partial capture
10-11 17:18	60m	-4 / -	H49A	- / -	4	Partial capture
10-11 17:05	60m	-6 / -	H49A	- / -	13	Partial capture
10-11 16:44	60m	-5 / -	H49A	- / -26	27	Partial capture
10-11 16:34	60m	-8 / -	H49A	- / -	6	Partial capture
10-11 16:11	60m	-6 / -	H49A	- / -26	12	Partial capture
10-11 04:46	60m	-6 / -	ER5GB	+1 / -2	4	✓ Closing observed
10-10 18:45	80m	+1 / -	H49A	- / -10	9	Partial capture
10-04 04:21	60m	- / -	F5MXH	-10 / -	2	Partial capture
10-04 04:17	60m	+2 / -	9T0MD	- / -15	4	✓ Closing fragment
10-03 16:46	10m	- / -	EC1DD	0 / -	2	Partial capture
10-02 18:16	80m	- / -	DO4DXA	+9 / -	4	Partial capture
10-02 18:16	80m	- / -	UA4FKT	+2 / -	4	Partial capture
10-02 18:15	80m	+8 / -	BX4AP	- / -6	3	✓ Closing fragment
10-02 18:06	80m	+14 / -	BA5AN	- / +2	2	✓ Closing fragment
10-02 18:05	80m	+12 / -	JJ2ONH	- / +1	2	✓ Closing fragment
10-02 18:03	80m	+12 / -	BX4AP	- / -	3	Partial capture
10-02 17:51	80m	0 / -	BX4AP	- / -	7	Partial capture
10-02 17:45	80m	- / -	UB3DRL	-7 / -	5	Partial capture
10-02 17:44	80m	+8 / -	BX4AP	- / -	5	Partial capture
10-02 17:08	80m	+4 / -	BX4AP	- / -7	7	Partial capture
10-02 17:00	80m	+8 / -	BX4AP	- / -	3	Partial capture
10-02 16:46	80m	+6 / -	BX4AP	- / -	3	Partial capture
10-02 16:39	80m	- / -	SP9IML	-2 / -	3	Partial capture
10-02 16:38	80m	+6 / -	BX4AP	- / -	8	Partial capture
10-02 15:51	80m	+4 / -	NL8F	- / -	3	Partial capture
10-02 15:46	80m	+4 / -	BX4AP	- / -	9	Partial capture
09-30 22:01	40m	- / -1	ON1BH	0 / -	2	Partial capture
09-30 18:55	80m	+4 / -	ZC4OL	- / -	11	Partial capture
09-30 03:32	80m	+17 / +3	HI6M	-12 / -13	9	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
190445  +5 1572  7P8GE I7DFV JN81 (x15)

80m

UTC    dB Audio  Message
050215  +3 1517  VP2MAW I7DFV JN81
035715 +10 1541  P4/WE9V I7DFV JN81 (x2)
035800  -1  454  I7DFV RR73; SP9HAB <...> -16
043315  +8 1542  LU1WFU I7DFV JN81 (x11)

40m

UTC    dB Audio  Message
051530  -3 1879  KL7J I7DFV JN81 (x3)
051715  -5 1879  I7DFV UC6D KN95
051815  -2 1879  AH6WP I7DFV JN81 (x2)
220145  +2  737  I7DFV ON1BH -01 (x2)
041130 -17 2091  I7DFV RK3DSW -02
034945  +0 1577  F5OYA/P I7DFV JN81
035000  +8  830  I7DFV P4/WE9V +03
035015  -3 1578  F5OYA/P I7DFV R+01
035030  +9  830  I7DFV RR73; EW2GI <...> -12
035100  -8 1578  I7DFV F5PBG IN78 (x2)

160m

UTC    dB Audio  Message
203515  -2 1836  RI1FJZ I7DFV JN81 (x9)
203930 -10 1832  I7DFV 9A4ZM JN86 (x2)
174830 -24 1840  UK8AEA I7DFV JN81

10m

UTC    dB Audio  Message
164615  -3  547  I7DFV EC1DD IN52 (x2)

20m

UTC    dB Audio  Message
142745 -19 1617  XU7O I7DFV JN81 (x2)
142900 -14 2424  I7DFV PE9JAN JO22 (x2)
150115 -12 1919  <...> I7DFV JN81 (x6)

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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