G4ZZL — 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: England Most frequent locator attributed to this token: JO01

Receiver-side FT8 activity involving G4ZZL, decoded by SO8OO in southeastern Poland. 41 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-11-05.

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 41 FT8 messages attributed to G4ZZL as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (83%), followed by 40 m (17%). Most decodes (98%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 7 20m · 34

First attributed message: 2026-08-11
Last attributed message: 2026-11-05 18:42 UTC

Observed FT8 message patterns

Attributed sample: 41 messages
Active dates: 7 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -19 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 10.

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 G4ZZL in decoded directed-looking exchanges:

EB1GUA · Spain F5OYA/P · France IZ5ILK · Italy DH5BM · Fed. Rep. of Germany DL1AAO · Fed. Rep. of Germany US5CDH · Ukraine

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 G4ZZL

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: JO01 · 31 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,469 km (approx.)
Last such locator decoded: 2026-11-05 18:42 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	G4ZZL S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-14 17:52	40m	-12 / -13	US5CDH	+4 / -2	5	✓ Full exchange observed
10-14 17:50	40m	- / -	F4BYA	+9 / -	4	Partial capture
10-14 17:46	40m	- / -13	DH5BM	+3 / -	3	✓ Closing fragment
10-12 14:38	40m	-23 / -21	G4OJH	-22 / -	6	Partial capture
08-29 17:08	40m	- / -6	DL1AAO	+10 / -	3	✓ Closing fragment
08-29 14:24	20m	-14 / -	SP1TJ	- / -	3	Partial capture
08-29 14:16	20m	-15 / -	SP1TJ	- / -3	7	Partial capture
08-29 14:12	20m	- / -6	F5OYA/P	-6 / -	5	✓ Closing fragment
08-29 13:48	20m	-15 / -	EA2EED	- / -	2	Partial capture
08-29 13:35	20m	- / -	F5RRS	+4 / -	4	Partial capture
08-29 13:28	20m	-4 / -	IZ5ILK	-10 / -	4	✓ Closing observed
08-29 13:03	20m	- / -	F5RRS	-1 / -	4	Partial capture
08-24 14:05	20m	- / -8	EB1GUA	-18 / -	2	✓ Closing fragment
08-24 14:04	20m	- / -	DL1R	-8 / -	9	Partial capture
08-11 17:33	20m	-8 / -	4L7T	- / -	2	Partial capture
08-11 17:30	20m	-9 / -	4X1UF	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
174645  +5 1007  G4ZZL DH5BM JO41 (x3)
175015  +7 2982  G4ZZL F4BYA JN19
175030 -16 1608  CQ G4ZZL JO01
175045  +8 2982  G4ZZL F4BYA JN19 (x3)
175200 -16  998  CQ G4ZZL JO01
175230 -11  997  US5CDH G4ZZL -02
175245  +1 1133  G4ZZL US5CDH R-13
175300 -12  997  US5CDH G4ZZL RR73
175315  +6 1133  G4ZZL US5CDH R-13 (x2)
184215 -20 1444  CU5AQ G4ZZL JO01

20m

UTC    dB Audio  Message
141345  -2 1254  G4ZZL F5OYA/P R-06 (x2)
141500 -18  816  OH2LV G4ZZL JO01
141630 -15  768  SP1TJ G4ZZL R-03 (x10)
101915  -8 1488  CQ G4ZZL JO01
101930  +4 2216  G4ZZL IQ4JO JN63

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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