G4BMM — 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: IO91

Receiver-side FT8 activity involving G4BMM, decoded by SO8OO in southeastern Poland. 134 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-18 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 134 FT8 messages attributed to G4BMM as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 80 m (33%) and 20 m (7%). Most decodes (75%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

134

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 44 40m · 81 20m · 9

First attributed message: 2026-07-18
Last attributed message: 2026-11-05 20:01 UTC

Observed FT8 message patterns

Attributed sample: 134 messages
Active dates: 8 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 53.

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 G4BMM in decoded directed-looking exchanges:

F4HSB · France ×2 9A2LM · Croatia UR8MB · Ukraine DK8HC · Fed. Rep. of Germany DL1BBO · Fed. Rep. of Germany DL7ACA · Fed. Rep. of Germany EI2KSB · Ireland EX7CQ · Kyrgyzstan G0RVY · England HI8ML · Dominican Republic IU8RFW · Italy M7CYY · England

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 G4BMM

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: IO91 · 73 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,607 km (approx.)
Last such locator decoded: 2026-11-05 20:01 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	G4BMM S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 19:57	40m	-3 / -	MW7HZQ	- / -	8	Partial capture
11-05 19:52	40m	-8 / -	MW7HZQ	- / -	6	Partial capture
11-05 19:18	40m	-1 / +1	DK8HC	-15 / -10	5	✓ Full exchange observed
11-05 19:17	40m	0 / -	DL1BBO	- / -13	2	✓ Closing fragment
11-05 19:13	40m	-2 / -	IU8RFW	- / -17	2	✓ Closing fragment
11-05 19:12	40m	-2 / -	SP6FME	-16 / -19	6	✓ Closing observed
11-05 19:09	40m	-3 / -18	S55A	-4 / -14	9	✓ Full exchange observed
11-05 19:07	40m	0 / -	UY0HY	- / -	2	Partial capture
11-05 19:06	40m	-8 / -	PA0WDN	- / -14	2	✓ Closing fragment
11-05 19:04	40m	-10 / -12	SV1DKR	-4 / -	3	✓ Closing observed
11-03 16:55	40m	-11 / -	TK8RI	- / -16	2	✓ Closing fragment
11-03 12:00	40m	- / -	UA4FKT	-16 / -	3	Partial capture
11-03 11:59	40m	- / -6	OZ9FF	-13 / -	3	✓ Closing fragment
10-31 23:40	40m	- / -	UR9QQ	-9 / -	4	Partial capture
10-31 23:34	40m	-6 / -	CN1UNI	- / -	4	Partial capture
10-31 23:30	40m	-5 / -	EY7BP	- / -	8	Partial capture
10-29 15:43	40m	-12 / -	TC1TR	- / -	10	Partial capture
10-29 13:38	40m	-21 / +5	G0RVY	-11 / -	4	✓ Full exchange observed
10-29 13:36	40m	-17 / -3	OG5O	+9 / -9	4	✓ Full exchange observed
10-29 13:34	40m	- / -5	OK1HEH	-8 / -	2	✓ Closing fragment
10-29 13:34	40m	-18 / -	M7CYY	- / +3	2	✓ Closing fragment
10-29 13:31	40m	-21 / -11	UX7QV	+4 / -16	5	✓ Full exchange observed
10-29 13:26	40m	-20 / -3	DL7ACA	+17 / -	7	✓ Closing observed
10-29 13:26	40m	-20 / +5	OZ9WRH	-13 / +7	5	✓ Full exchange observed
10-28 16:59	40m	-10 / -	F4HSB	-20 / -6	3	✓ Closing observed
10-28 16:54	40m	-12 / -19	EX7CQ	-10 / -	4	✓ Closing observed
10-28 16:49	40m	-11 / -	SX37VER	- / -12	3	Partial capture
08-27 13:09	20m	-9 / -	<...>	- / -	5	Partial capture
08-27 13:04	20m	-6 / -	9A2LM	- / -	2	✓ Closing fragment
08-27 13:02	20m	-7 / -20	UR8MB	+6 / -7	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
192000  -1 1039  DK8HC G4BMM RR73
195215  -9 1040  MW7HZQ G4BMM IO91 (x14)

20m

UTC    dB Audio  Message
130215  -9 2278  UR8MB G4BMM IO91
130230  +4 2133  G4BMM UR8MB -20
130245  -5 2278  UR8MB G4BMM R-07
130300  +8 2133  G4BMM UR8MB RR73
130415  -6 2278  9A2LM G4BMM IO91 (x2)
130915  -8 2278  <...> G4BMM IO91 (x5)

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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