EA7GRB — 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: Spain Most frequent locator attributed to this token: IM76

Receiver-side FT8 activity involving EA7GRB, decoded by SO8OO in southeastern Poland. 154 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 154 FT8 messages attributed to EA7GRB as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (77%), followed by 40 m (19%) and 10 m (4%). Most decodes (82%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

154

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

40m · 29 20m · 119 10m · 6

First attributed message: 2026-06-06
Last attributed message: 2026-11-04 18:00 UTC

Observed FT8 message patterns

Attributed sample: 154 messages
Active dates: 35 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -23 to -10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 75, moderate (-15 to -9 dB) 71, strong (≥ -8 dB) 8.

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 EA7GRB in decoded directed-looking exchanges:

EG5ECL · Spain ×2 EG5MYC · Spain ×2 PD9FLX · Netherlands ×2 EA8UP · Canary Islands HB9OAB · Switzerland 2E0BRU · England AO5FSB · Spain EA2WX · Spain EA7KLL · Spain EG1SRL · Spain EG5DX · Spain F5IXN · France

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 EA7GRB

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: IM76 · 104 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,613 km (approx.)
Last such locator decoded: 2026-10-31 19:15 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	EA7GRB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 18:00	40m	-15 / -	EA5KDD	-11 / -	2	✓ Closing observed
11-04 16:07	40m	- / -25	9A1CCB	-1 / -	3	✓ Closing fragment
10-31 19:14	40m	-12 / -	EC1DD	- / -	4	Partial capture
10-24 16:46	40m	- / +1	EA5AQB	+4 / -	2	✓ Closing fragment
10-23 20:06	40m	-14 / -	A92AE	- / -11	8	✓ Closing fragment
10-15 12:57	10m	-20 / -	XW4KV	- / -13	2	Partial capture
08-30 19:44	40m	-15 / -5	S56MLZ	-2 / -19	4	✓ Full exchange observed
08-30 18:41	20m	-13 / -	EA2WX	- / -6	5	✓ Closing fragment
08-29 20:14	20m	-13 / -	<...>	- / -12	2	Partial capture
08-29 20:07	20m	-12 / +1	AO5FSB	+13 / -22	7	✓ Full exchange observed
08-29 19:41	20m	-18 / -	SP8S	- / -	3	✓ Closing fragment
08-28 21:06	40m	-8 / -	RA3ZT/QRP	- / -23	2	Partial capture
08-27 13:12	20m	-18 / -	PA3GHJ	-12 / -	2	✓ Closing observed
08-27 13:09	20m	-22 / -14	PD9FLX	-9 / -10	6	✓ Full exchange observed
08-26 21:31	20m	-17 / -	M0OVG	- / -6	2	✓ Closing fragment
08-26 14:03	20m	-21 / -	LB8X	- / -	3	Partial capture
08-26 13:45	20m	-12 / +10	F5IXN	-1 / -2	6	✓ Full exchange observed
08-25 13:06	20m	-14 / -8	EA7KLL	-13 / -	5	✓ Closing observed
08-22 13:14	20m	-24 / -4	SV9KNA	+7 / -	2	Partial capture
08-20 18:35	40m	-14 / -2	EG5DX	-11 / -3	2	Partial capture
08-19 21:31	20m	-23 / -	EG5DX	-11 / -17	3	✓ Closing observed
08-19 21:22	20m	- / -2	EG5DX	-14 / -	4	Partial capture
08-19 21:17	20m	-22 / -13	EG5DX	-13 / -	2	Partial capture
08-19 18:49	20m	-17 / -	LB8X	- / -10	6	Partial capture
08-19 13:39	10m	- / -18	HB9OAB	-14 / -	3	✓ Closing fragment
08-14 19:48	20m	-12 / -5	EG5MYC	-14 / +1	6	✓ Full exchange observed
08-14 19:41	20m	-12 / -	<...>	- / -	12	Partial capture
08-14 19:35	20m	-11 / -	<...>	- / -	3	Partial capture
08-14 18:10	20m	-16 / -3	<...>	-14 / -21	5	Partial capture
08-12 18:35	20m	- / +10	F1UGD	-14 / -	2	Partial capture
08-11 19:20	20m	-20 / -	TT1GD	- / -8	2	Partial capture
08-11 16:37	10m	- / -	EA8UP	-15 / -	2	✓ Closing fragment
08-10 09:51	20m	- / -	EG5ECL	-17 / -	2	✓ Closing fragment
08-09 16:22	20m	- / -	EG5MYC	-14 / -	2	✓ Closing fragment
08-08 17:46	10m	-13 / -	EG5ECL	- / -14	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
200945 -13 1522  A92AE EA7GRB R-11 (x2)
163415 -20 1521  4X5CG EA7GRB IM76
164615  +5  335  EA7GRB EA5AQB +01 (x2)
191415 -16 1515  EC1DD EA7GRB IM76 (x4)
145415 -20 1707  EA7GRB 9A60CBM -09
160730  +0 1081  EA7GRB 9A1CCB JN85 (x3)
180015 -11  533  EA7GRB EA5KDD RR73
180030 -15 1514  EA5KDD EA7GRB 73

10m

UTC    dB Audio  Message
174615 -13 1541  EG5ECL EA7GRB IM76 (x4)
163700 -17 1212  EA7GRB EA8UP +18 (x2)
133945 -15 2328  EA7GRB HB9OAB JN46 (x3)
125700 -19 1489  XW4KV EA7GRB IM76 (x2)

20m

UTC    dB Audio  Message
200930  -8 1557  AO5FSB EA7GRB IM76
200945 +16 1884  EA7GRB AO5FSB +01 (x2)
201030  -8 1559  AO5FSB EA7GRB R-22
201045 +10 1884  EA7GRB AO5FSB RR73
201415 -15 1558  <...> EA7GRB IM76 (x2)
173215  -9 1555  CQ EA7GRB IM76
173400 +15 1554  EA7GRB UA4FEN -12
184145 -13 1555  EA2WX EA7GRB IM76 (x5)
102130 -11 1555  EG1PPE EA7GRB IM76

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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