GM3DRA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Scotland Most frequent locator attributed to this token: IO86

Receiver-side FT8 activity involving GM3DRA, decoded by SO8OO in southeastern Poland. 1,888 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-31.

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 1,888 FT8 messages attributed to GM3DRA as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (97%), followed by 40 m (2%) and 10 m (1%). The busiest six-hour window was 14:00-20:00 UTC, containing 42% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

1,888

Messages attributed

UTC dates decoded

207

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 4 40m · 29 20m · 1,836 10m · 19

First attributed message: 2026-06-07
Last attributed message: 2026-08-31 19:59 UTC

Observed FT8 message patterns

Attributed sample: 1,888 messages
Active dates: 31 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -16 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 195, moderate (-15 to -9 dB) 716, strong (≥ -8 dB) 977.

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 GM3DRA in decoded directed-looking exchanges:

CR5VP · Portugal ×2 HA3GX · Hungary ×2 IW5ALZ · Italy ×2 TA3NK · Asiatic Turkey ×2 DF1WR · Fed. Rep. of Germany DL3BH · Fed. Rep. of Germany DN9BT · Fed. Rep. of Germany F4FED · France F4PCM · France F5CUN · France IQ4JO · Italy IU3BIX · Italy

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 GM3DRA

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: IO86 · 910 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,792 km (approx.)
Last such locator decoded: 2026-08-31 19:42 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	GM3DRA S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 19:57	20m	-1 / -	OO0O	- / -1	6	Partial capture
08-31 19:43	20m	-2 / -	OO0O	-6 / -9	7	Partial capture
08-31 19:40	20m	-8 / -13	EA8AT	-5 / -	3	✓ Closing observed
08-31 19:37	20m	-8 / -	PY5DC	- / -14	2	✓ Closing fragment
08-31 19:37	20m	- / -	F5OQK	+6 / -	2	Partial capture
08-31 19:35	20m	-6 / -5	DF2SL	-6 / -11	4	✓ Full exchange observed
08-31 19:30	20m	-6 / -	BH8NNU	- / -25	2	✓ Closing fragment
08-31 12:16	20m	-11 / -	JA2EID	- / -	2	Partial capture
08-30 07:14	20m	- / -	E74MW	+10 / -	2	Partial capture
08-30 07:13	20m	- / -	OK2CNI	-17 / -	2	Partial capture
08-30 07:12	20m	- / -	EA5OL	+2 / -	5	Partial capture
08-30 07:02	20m	-10 / -	HB9RSG	- / -18	3	✓ Closing fragment
08-30 06:53	20m	-9 / -	VK2VAR	- / -	13	Partial capture
08-30 05:38	20m	- / -15	OD5KU	+2 / -	3	✓ Closing fragment
08-30 05:37	20m	- / -	R3KCW	+11 / -	2	Partial capture
08-30 05:35	20m	- / -12	UT5MD	-17 / -	5	✓ Closing fragment
08-29 21:08	80m	-6 / -11	DO1OAS	-4 / -	12	Partial capture
08-29 21:03	80m	- / -	PE1NPS	-11 / -	3	Partial capture
08-29 21:02	80m	- / -	DL1UDO	0 / -	3	Partial capture
08-29 21:02	80m	- / -	RD7O	+2 / -	3	Partial capture
08-29 21:02	80m	- / -	DO5PY	-5 / -	3	Partial capture
08-29 20:51	40m	-20 / -	G0BKL	- / -	6	Partial capture
08-29 20:33	40m	-18 / -	M0ROP	- / -5	2	✓ Closing fragment
08-29 20:13	40m	-13 / -	SP3SXU	- / -16	5	✓ Closing fragment
08-29 20:09	40m	- / -	DL6AZ	0 / -	2	Partial capture
08-29 20:05	40m	- / -	RN3ZBX	+3 / -	3	Partial capture
08-29 20:05	40m	- / -16	DL6KIX	0 / -	3	Partial capture
08-29 20:02	40m	- / -	DF5JU	+2 / -	3	Partial capture
08-29 19:59	40m	- / -	DF5JU	0 / -	2	Partial capture
08-29 19:57	40m	- / -	HB9HRG	-17 / -	3	Partial capture
08-29 19:55	40m	- / -	EA5S	0 / -	2	Partial capture
08-29 19:54	40m	- / -	DL1EDR	+3 / -	3	Partial capture
08-29 19:54	40m	- / -	ER1BF	-14 / -	4	Partial capture
08-29 19:52	40m	- / -15	SQ6PM	-8 / -	3	✓ Closing fragment
08-29 19:51	40m	- / -8	DL5FCE	0 / -	3	✓ Closing fragment
08-29 19:48	40m	-19 / -	7X3WPL	-8 / +7	2	Partial capture
08-29 19:33	40m	- / +10	PA2RO	-5 / -	4	✓ Closing fragment
08-29 19:30	40m	-20 / -	DC9GT	- / -10	2	Partial capture
08-29 08:11	20m	-16 / -	R7OV	- / -9	2	✓ Closing fragment
08-29 07:53	20m	- / -19	UA6YW	-6 / -	5	✓ Closing fragment
08-28 15:51	40m	- / -	DF7HG	-18 / -	4	✓ Closing fragment
08-28 14:54	40m	- / -	PE1NPS	-12 / -	2	✓ Closing fragment
08-28 14:45	40m	- / -	UB2FEK	-18 / -	2	Partial capture
08-28 14:44	40m	- / -	LY1DY	+2 / -	2	Partial capture
08-28 14:39	40m	- / -4	SP1EXD	-8 / -	5	✓ Closing fragment
08-28 07:57	20m	-1 / -	CT7AUT	- / -	2	✓ Closing fragment
08-28 07:56	20m	- / -6	F5URG	+2 / -	7	Partial capture
08-28 07:55	20m	- / -	IK2IKW	-2 / -	2	Partial capture
08-28 07:50	20m	- / -	RN3AKL	0 / -	2	Partial capture
08-28 07:44	20m	-8 / -	F1IQH	-19 / -15	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
194130  -8 1850  EA8AT GM3DRA 73
194200  -6 1850  CQ GM3DRA IO86                        a1
194300  +0 2370  OO0O GM3DRA -09 (x2)
194345  -6  378  GM3DRA OO0O JO11
194400  -3 2370  OO0O GM3DRA -02
194415  -7  378  GM3DRA OO0O JO11
194430  -5 2370  OO0O GM3DRA -01 (x8)

80m

UTC    dB Audio  Message
210330  -4  910  GM3DRA DL1UDO JO31
210400 -16 2401  GM3DRA PE1NPS JO22 (x2)
210845  -7  700  DO1OAS GM3DRA IO86 (x3)
211000  -7  408  GM3DRA DO1OAS -11
211015  -3  700  DO1OAS GM3DRA IO86
211030  -3  408  GM3DRA DO1OAS -11 (x7)

40m

UTC    dB Audio  Message
201345 -16 1280  SP3SXU GM3DRA -16 (x5)
203330 -18 1280  M0ROP GM3DRA R-05 (x2)
203745 -17 1290  G0BKL GM3DRA IO86
203930  -7 1832  GM3DRA S59YL JN65
205145 -18 1290  G0BKL GM3DRA IO86 (x6)

10m

UTC    dB Audio  Message
190330 -18 1654  GM3DRA PD2FS JO22 (x2)
152830 -13 1526  GM3DRA IZ8DGR JN70 (x3)
153100  -4 2705  GM3DRA IQ4JO JN63 (x3)
154100 -10 1655  GM3DRA IU3NOM JN55 (x3)
160100 -17 2283  GM3DRA F5PEG R-14
113845 -16 1127  GM3DRA RN6MA -04 (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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