GM3CQD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Scotland Most frequent locator attributed to this token: IO85

Receiver-side FT8 activity involving GM3CQD, decoded by SO8OO in southeastern Poland. 814 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-03.

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 814 FT8 messages attributed to GM3CQD as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (69%), followed by 60 m (23%) and 40 m (3%). Most decodes (88%) 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 -12 dB.

Overview

814

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 15 60m · 184 40m · 25 20m · 565 10m · 25

First attributed message: 2026-06-06
Last attributed message: 2026-09-03 21:40 UTC

Observed FT8 message patterns

Attributed sample: 814 messages
Active dates: 27 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -19 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 185, moderate (-15 to -9 dB) 454, strong (≥ -8 dB) 175.

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 GM3CQD in decoded directed-looking exchanges:

F1PBZ · France ×4 DH2RL · Fed. Rep. of Germany ×3 F5HNQ · France ×2 IW5ALZ · Italy ×2 PD0IFI · Netherlands ×2 F5MYH · France ×2 I4WQH · Italy ×2 PD0MNO · Netherlands ×2 OH3OJ · Finland ×2 OZ0A · Denmark ×2 R5AV · European Russia ×2 OM5JG · Slovak Republic ×2

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 GM3CQD

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: IO85 · 505 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,769 km (approx.)
Last such locator decoded: 2026-09-03 21:38 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	GM3CQD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-03 21:42	40m	- / -	IZ4AFM	+4 / -	2	Partial capture
09-03 21:40	40m	-15 / -15	IU3QYU	+1 / -13	5	✓ Full exchange observed
09-03 21:39	40m	-13 / -	DM8ET	- / -7	2	✓ Closing fragment
09-03 21:36	40m	-16 / -15	EX7CQ	-2 / -9	5	✓ Full exchange observed
09-03 21:35	40m	-18 / -9	EA4D	-16 / -4	5	✓ Full exchange observed
09-03 21:33	40m	-18 / -17	UR4QWW	-12 / -	4	✓ Closing observed
09-03 21:26	40m	- / -7	IU3WNZ	-12 / -	3	✓ Closing fragment
09-03 21:22	40m	-8 / -13	R3PJV	-4 / -	3	✓ Closing observed
09-03 21:17	40m	- / -21	I4WQH	0 / -	3	✓ Closing fragment
09-03 21:09	40m	- / -13	F5HNQ	-2 / -	2	✓ Closing fragment
09-03 20:54	40m	- / -18	F5HNQ	-7 / -	3	✓ Closing fragment
09-03 20:48	40m	- / -16	S57BTI	+2 / -	3	✓ Closing fragment
09-03 20:45	60m	- / -	F1IQH	-8 / -	3	Partial capture
09-03 20:33	60m	- / +9	DL5RDP	+6 / -	4	✓ Closing fragment
09-03 20:33	60m	- / -	GE7RTI	-8 / -	5	✓ Closing fragment
09-03 20:32	60m	- / -1	OV5SP	-7 / -	3	✓ Closing fragment
08-31 21:38	60m	-17 / -13	OM5CM	-3 / -16	4	✓ Full exchange observed
08-31 21:32	60m	-18 / -	D44TWO	- / -	2	Partial capture
08-31 21:29	60m	-16 / -	D44TWO	- / -	2	Partial capture
08-31 21:23	60m	-14 / -13	DL3BH	-8 / -11	5	✓ Full exchange observed
08-31 21:23	60m	-18 / -8	IZ0MIT	0 / -10	4	✓ Full exchange observed
08-31 21:20	60m	-15 / -3	OH3GBW	-10 / -	4	✓ Closing observed
08-31 21:16	60m	- / -14	DF4FS	-8 / -	2	Partial capture
08-31 21:15	60m	-15 / -13	EG1PPE	-14 / -	3	✓ Closing observed
08-31 21:15	60m	- / -8	IK5ZPV	-4 / -	2	✓ Closing fragment
08-31 10:04	20m	- / -9	DM2AB	+9 / -	3	✓ Closing fragment
08-30 20:25	60m	-12 / +1	GW0KQX	-10 / -	4	✓ Closing observed
08-30 20:24	60m	- / -9	DL4MFC	-5 / -	3	✓ Closing fragment
08-30 20:13	60m	- / -14	PH3GB	-8 / -	2	✓ Closing fragment
08-30 20:10	60m	-8 / -7	SP9UPH	+9 / -6	5	✓ Full exchange observed
08-30 20:08	60m	-7 / -7	G4SRT	-11 / -12	4	✓ Full exchange observed
08-30 20:07	60m	-10 / -2	ON5RZ	-11 / -	3	✓ Closing observed
08-30 19:34	20m	0 / -13	SP8SRZ	-10 / -8	4	✓ Full exchange observed
08-30 19:32	20m	0 / -15	EA2JE	-4 / -	6	✓ Closing observed
08-30 19:28	20m	-1 / -	OE8RPK	+4 / -13	3	✓ Closing observed
08-30 19:27	20m	-8 / -	UR9QQ	-9 / -	2	✓ Closing observed
08-30 08:58	20m	-3 / -14	R3KJF	+8 / -12	4	✓ Full exchange observed
08-30 08:48	20m	-7 / -3	OH3MB	-2 / -	3	✓ Closing observed
08-30 08:46	20m	-6 / -	IU3NAP	- / 0	2	✓ Closing fragment
08-30 08:42	20m	-8 / -	C31VM	- / -16	3	✓ Closing fragment
08-30 08:39	20m	-8 / -	LY2BSW	- / -4	2	✓ Closing fragment
08-30 02:20	60m	- / -	DG5PW	+6 / -	3	Partial capture
08-30 02:19	60m	-10 / -17	EA1HTF	-8 / -9	4	✓ Full exchange observed
08-30 02:17	60m	-9 / -	OH2GQC	- / -18	2	✓ Closing fragment
08-30 02:09	60m	-13 / -9	EA1IOK	+1 / -	4	✓ Closing observed
08-30 02:08	60m	-11 / -	OM5JG	- / -10	3	✓ Closing fragment
08-30 02:03	80m	-24 / -25	UR5SG	+7 / -	4	✓ Closing observed
08-30 02:01	80m	-18 / -19	YL4U	+7 / -4	4	✓ Full exchange observed
08-30 01:46	80m	-16 / -	EW8AAC	- / -	2	Partial capture
08-30 00:18	40m	- / -14	CT2GQA	-10 / -	5	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
213700  +0 1735  GM3CQD EX7CQ -15
213730  +1 1735  GM3CQD RR73; PD0MVP <...> -16
213745 -20 1629  EX7CQ GM3CQD 73
213815 -19 1629  CQ GM3CQD IO85 (x2)
213915 -12 1629  DM8ET GM3CQD R-07 (x2)
214000  +3  725  GM3CQD IU3QYU JN55
214015 -12 1628  IU3QYU GM3CQD -13
214030  -2  724  GM3CQD IU3QYU R-15
214045 -18 1628  IU3QYU GM3CQD RR73
214130  +1  724  GM3CQD IU3QYU 73
214230  +4  238  GM3CQD IZ4AFM JN64 (x2)
215145  -4 1228  GM3CQD HB10GBT +09

60m

UTC    dB Audio  Message
203300  -7  429  GM3CQD GE7RTI IO91
203300  -9  912  GM3CQD OV5SP R-01
203300  +6 1029  GM3CQD DL5RDP JN58
203330  -8  429  GM3CQD GE7RTI IO91
203330  -7  911  GM3CQD OV5SP 73
203330  +6 1029  GM3CQD DL5RDP JN58
203400  -7  429  GM3CQD GE7RTI IO91
203400  +7 1029  GM3CQD DL5RDP R+09
203430  -9  429  GM3CQD GE7RTI IO91
203430  +6 1029  GM3CQD DL5RDP 73
203500  -3  361  GM3CQD DL1MST JO30
203530  -9  429  GM3CQD GE7RTI 73
204530 -10  912  GM3CQD F1IQH JN27 (x3)

20m

UTC    dB Audio  Message
193345  -2 2014  EA2JE GM3CQD RR73
193400  -5 1774  GM3CQD EA2JE 73
193415  -3 2014  CQ GM3CQD IO85
193445  -1 2015  SP8SRZ GM3CQD -08
193500 -10 2365  GM3CQD SP8SRZ R-13
193515  +1 2015  SP8SRZ GM3CQD RR73
193530 -10 2364  GM3CQD SP8SRZ 73
195430 -10 2282  HZ1KS GM3CQD IO85
195515  -7 2350  GM3CQD IR7MGGC +03
100115  -6  814  GM3CQD F4NJZ JN25
100415 +14  331  GM3CQD DM2AB JN49 (x3)
101015  -7 2297  GM3CQD DL5DQZ JO61
101245 -17  815  GM3CQD F4NJZ JN25

80m

UTC    dB Audio  Message
014545 -13 2197  CQ GM3CQD IO85
014645 -15 2219  EW8AAC GM3CQD IO85
014700  +8 2197  GM3CQD RC2DD KO85
014715 -16 2219  EW8AAC GM3CQD IO85
015245 -19 1896  RV3SBS/P GM3CQD IO85
015345 -24 1896  CQ GM3CQD IO85 (x2)
020100 -16 1896  YL4U GM3CQD IO85
020115 +10 1301  GM3CQD YL4U -19
020130 -19 1896  YL4U GM3CQD R-04
020145  +4 1301  GM3CQD YL4U RR73
020345 +17 1452  GM3CQD UR5SG -25 (x3)
020530 -24 1897  UR5SG GM3CQD 73

10m

UTC    dB Audio  Message
134315  -5  663  GM3CQD DO1YHJ R+11 (x2)
134645 -11 1622  GM3CQD DO1JMA JO40
135545 -19 1139  GM3CQD F4PCM JN23 (x3)
141100 -13 2015  GM3CQD I4WQH R-21 (x2)
141630 -16 1958  GM3CQD DL1AG 73
142400 -24 1948  GM3CQD IK3VVC 73
145630 -19 2114  GM3CQD TM8WWA -07
182300  -7 1560  GM3CQD F1SZC IN95 (x2)
183930 -12 2494  GM3CQD DN9MRB 73
141130 -15 2518  GM3CQD F1SAA JN25

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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