G4BMM — FT8 activity observed at SO8OO

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. 53 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-18 and 2026-08-27.

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 53 FT8 messages attributed to G4BMM as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (83%), followed by 20 m (17%). Several six-hour UTC windows tied for the largest share (83%), so no unique busiest interval is claimed. 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

80m · 44 20m · 9

First attributed message: 2026-07-18
Last attributed message: 2026-08-27 13:11 UTC

Observed FT8 message patterns

Attributed sample: 53 messages
Active dates: 3 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -18 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 12.

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:

9A2LM · Croatia UR8MB · Ukraine DB9LG · Fed. Rep. of Germany DH4PAP · Fed. Rep. of Germany DK1AQ · Fed. Rep. of Germany DL6MRA · Fed. Rep. of Germany DO1MGN · Fed. Rep. of Germany DO4OD · Fed. Rep. of Germany DO9KB · Fed. Rep. of Germany M0KWR · England ON4MGV · Belgium ON5RJ · Belgium

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 · 25 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,607 km (approx.)
Last such locator decoded: 2026-08-27 13:11 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
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
07-22 19:47	80m	-3 / -18	EW7EL	0 / -	7	Partial capture
07-22 19:43	80m	-11 / -15	UA4FKT	+9 / -12	10	✓ Full exchange observed
07-22 19:41	80m	-13 / -11	RO2X	+7 / -17	6	✓ Full exchange observed
07-22 19:41	80m	-13 / -3	DO1MGN	-6 / -15	4	✓ Full exchange observed
07-22 19:40	80m	-17 / -8	9A3TN	+12 / -	3	Partial capture
07-22 19:38	80m	-8 / -14	YU7AS	+2 / -17	5	✓ Full exchange observed
07-22 19:35	80m	-15 / -22	R7BI	+4 / -16	5	✓ Full exchange observed
07-22 19:34	80m	-13 / -	UT7IA	+10 / -	2	✓ Closing observed
07-22 19:29	80m	-18 / -5	DL6MRA	-2 / -15	5	✓ Full exchange observed
07-22 19:26	80m	- / -	OE7CMT	-17 / -	5	Partial capture
07-22 19:26	80m	-9 / -	DK1AQ	+4 / -2	5	✓ Full exchange observed
07-22 19:20	80m	-11 / -3	SP5ALV	+10 / -17	13	✓ Full exchange observed
07-22 19:19	80m	- / -9	SP9UPH	+13 / -	4	✓ Closing fragment
07-22 19:19	80m	- / -	DA6NEL	-18 / -	3	Partial capture
07-22 19:19	80m	- / -16	YO4NT	+10 / -	2	Partial capture
07-22 19:18	80m	- / -	ON7YC	-14 / -	2	✓ Closing fragment
07-22 19:18	80m	- / -	DL1KYF	-18 / -	2	Partial capture
07-22 18:56	80m	- / -3	DB9LG	-14 / -	4	✓ Closing fragment
07-22 18:08	80m	- / -	SP5BTB	+17 / -	2	Partial capture
07-22 18:06	80m	-17 / -	ON4MGV	- / -3	4	✓ Closing fragment
07-22 18:02	80m	-18 / -2	ON5RJ	-8 / -1	5	✓ Full exchange observed
07-22 18:01	80m	-14 / -	DO9KB	- / -	2	✓ Closing fragment
07-22 17:47	80m	- / -1	DO1FZL	-13 / -	2	Partial capture
07-22 17:47	80m	- / -	DO4FB	-2 / -	2	Partial capture
07-22 17:35	80m	- / -	DH4PAP	-20 / -	2	✓ Closing fragment
07-22 17:33	80m	- / -8	DO4OD	-9 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

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)

80m

UTC    dB Audio  Message
194345  -8 1053  UA4FKT G4BMM -12
194400  +8 1053  G4BMM UA4FKT R-15
194415 -12 1053  UA4FKT G4BMM -12
194430 +11 1053  G4BMM UA4FKT R-15
194445 -12 1053  UA4FKT G4BMM -12
194500  +7 1053  G4BMM UA4FKT R-15
194515 -13 1053  UA4FKT G4BMM RR73
194530 +10 1053  G4BMM UA4FKT 73
194730  -4 1053  EW7EL G4BMM IO91 (x2)
194815  +3 1150  G4BMM EW7EL -18
194830  -4 1053  EW7EL G4BMM IO91
194845  -2 1151  G4BMM EW7EL -18 (x3)

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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