EI9FVB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ireland Most frequent locator attributed to this token: IO51

Receiver-side FT8 activity involving EI9FVB, decoded by SO8OO in southeastern Poland. 875 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-09.

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 875 FT8 messages attributed to EI9FVB as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (82%), followed by 40 m (11%) and 20 m (7%). Most decodes (94%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -4.9 dB.

Overview

875

Messages attributed

UTC dates decoded

Active 15-min windows

-4.9 dB

Estimated median S/N

Bands

160m · 1 80m · 719 40m · 93 20m · 62

First attributed message: 2026-06-10
Last attributed message: 2026-10-09 05:42 UTC

Observed FT8 message patterns

Attributed sample: 875 messages
Active dates: 11 UTC dates
Estimated median S/N: -4.9 dB
Estimated 10th-90th percentile: -13 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 54, moderate (-15 to -9 dB) 211, strong (≥ -8 dB) 610.

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 EI9FVB in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×2 EA1VIL · Spain ×2 ON1BH · Belgium ×2 DK6WS · Fed. Rep. of Germany GM4JYB · Scotland ON4ZD · Belgium PA3FR · Netherlands BG8HNC · China EA5KV · Spain IU6WSB · Italy LA1SNA · Norway OH7FAE · Finland

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 EI9FVB

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: IO51 · 416 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,159 km (approx.)
Last such locator decoded: 2026-10-09 05:42 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	EI9FVB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-09 05:37	40m	- / -3	DL9KM	-7 / -	3	✓ Closing fragment
10-09 05:36	40m	- / -	HG6IOM	-6 / -	3	Partial capture
10-09 05:19	40m	- / -	LZ2XF	-4 / -	2	✓ Closing fragment
10-09 05:15	40m	-16 / -12	YO9PH	+4 / -	3	✓ Closing observed
10-09 04:59	40m	-10 / -	J88IH	- / -	2	Partial capture
10-09 04:58	40m	-4 / -	EA5JHD	- / -20	2	✓ Closing fragment
10-09 04:56	40m	-6 / -14	UC6D	+12 / -11	4	✓ Full exchange observed
09-30 21:46	80m	-7 / -	Z61DX	- / -	7	Partial capture
09-30 21:34	80m	-1 / -	Z61DX	- / -	8	Partial capture
09-30 21:31	80m	-1 / -6	UW5KW	+14 / -23	6	✓ Full exchange observed
09-30 21:30	80m	- / -	OH3GBW	-1 / -	11	Partial capture
09-30 21:29	80m	- / -	DL1MST	+8 / -	2	Partial capture
09-30 21:26	80m	-7 / -19	RD7O	-3 / -25	7	✓ Full exchange observed
09-30 21:19	80m	- / -	DL1MST	+10 / -	2	Partial capture
09-30 21:18	80m	-3 / -5	OK1AWC	+5 / +6	5	✓ Full exchange observed
09-30 21:15	80m	-6 / -18	RC6OU	+8 / -16	8	✓ Full exchange observed
09-30 21:05	80m	-4 / -	EA8UP	-5 / -10	3	✓ Closing observed
09-30 21:05	80m	- / -	DL1MST	-2 / -	2	Partial capture
09-30 21:02	80m	-5 / -4	HB9EXN	-2 / -17	4	✓ Full exchange observed
09-30 21:01	80m	- / -	IK7EES	+10 / -	5	Partial capture
09-30 21:00	80m	- / -	IV3JTG	+15 / -	5	Partial capture
09-30 21:00	80m	- / -	DL1MST	+2 / -	3	Partial capture
09-30 21:00	80m	-2 / -4	SP1ZX	+9 / -2	5	✓ Full exchange observed
09-30 20:56	80m	-2 / -10	DL6YEU	+14 / -4	5	✓ Full exchange observed
09-30 20:56	80m	- / -19	SP9XKV	-2 / -	8	✓ Closing fragment
09-30 20:50	80m	+2 / -20	UA3ECJ	+5 / -15	10	✓ Full exchange observed
09-30 20:50	80m	- / -	OM3PR	+10 / -	2	Partial capture
09-30 20:48	80m	0 / -6	RX6AM	-1 / -1	5	✓ Full exchange observed
09-30 20:46	80m	- / -	ON4MAP	-12 / -	2	Partial capture
09-30 20:41	80m	-8 / -15	DM8ET	-16 / +1	5	✓ Full exchange observed
09-30 20:41	80m	-7 / -	EA7CRB	- / -23	2	✓ Closing fragment
09-30 20:38	80m	-5 / -20	R6FFB	-3 / -24	13	✓ Full exchange observed
09-30 20:35	80m	-6 / -	R3DCX	+3 / -5	5	✓ Closing observed
09-30 20:35	80m	- / -	RX6AM	-3 / -	4	Partial capture
09-30 20:34	80m	- / -	OM3PR	+11 / -	4	Partial capture
09-30 20:33	80m	- / -	R6FFB	+2 / -	2	Partial capture
09-30 20:32	80m	+3 / -	R7CD	-4 / -17	4	✓ Closing observed
09-30 20:30	80m	+2 / -	EA1EYL	- / -13	4	✓ Closing fragment
09-30 20:28	80m	- / -	UA3ECJ	+5 / -	3	Partial capture
09-30 20:27	80m	-4 / -20	DL1HTW	+13 / +5	7	✓ Full exchange observed
09-30 20:26	80m	- / -	OM3PR	+16 / -	2	Partial capture
09-30 20:25	80m	-4 / -7	F4MGP	-1 / -20	3	✓ Full exchange observed
09-30 20:24	80m	- / -	R3XBV	-8 / -	2	Partial capture
09-30 20:22	80m	-7 / -19	DO5HB	-11 / -25	6	✓ Full exchange observed
09-30 20:21	80m	-2 / -	G0HSP	+1 / +3	5	✓ Full exchange observed
09-30 20:20	80m	- / -	OE2AGZ	-5 / -	2	Partial capture
09-30 20:18	80m	-4 / +9	OZ1LGJ	+4 / -11	4	✓ Full exchange observed
09-30 20:11	80m	-12 / -24	ES4TRI	-11 / -10	15	Partial capture
09-30 20:08	80m	-18 / -	ON7KEI	- / -3	2	✓ Closing fragment
09-30 20:05	80m	-12 / -	F4MUN	-14 / +9	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
052145 -14 2392  CQ EI9FVB IO51 (x5)
053630  -5 2335  EI9FVB HG6IOM JN97 (x2)
053730 -12 1843  EI9FVB DL9KM JN68
053800 -10 2335  EI9FVB HG6IOM JN97
053800  -5 1843  EI9FVB DL9KM R-03 (x2)
054045 -14 2390  HK3AB EI9FVB IO51
054115 -11 2390  CQ EI9FVB IO51 (x3)

80m

UTC    dB Audio  Message
213515  -5  286  EI9FVB OH3GBW KP21
213530  +2  552  Z61DX EI9FVB IO51 (x5)
214015 +12 1495  EI9FVB EO210WLP R-19
214200  +4  521  Z61DX EI9FVB IO51 (x8)

160m

UTC    dB Audio  Message
215030 -11  249  EI9FVB 4L7T LN21 (x3)
220230 -19 2129  EI9FVB GM4JYB IO88 (x3)
220815 -24 1385  RI1FJZ EI9FVB IO51
221330 -18 2042  EI9FVB 4L7T LN21 (x2)
194830  +1  636  EI9FVB SO1CJ JN99 (x2)
194930 -18 1437  EI9FVB DK6WS -14 (x2)
195330  -9 1082  EI9FVB PA3FR -14 (x2)

20m

UTC    dB Audio  Message
163545  -7 2367  SP7LPD EI9FVB RR73
163615  -6 2368  CQ EI9FVB IO51
163645  -6 2367  SP7LPD EI9FVB R-21
164015 -10 2368  CQ EI9FVB IO51
164215 -11 2264  KF0MSJ EI9FVB IO51 (x2)
164315 -12 2264  CQ EI9FVB IO51
165145  -8 2404  IU6WSB EI9FVB RR73
165245  -2 2404  CQ EI9FVB IO51 (x4)
165445 -12 2404  DL6RH EI9FVB -24 (x3)

10m

UTC    dB Audio  Message
162500 -19 1451  EI9FVB PA2WDR JO21

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.

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