SP1MGM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO73

Receiver-side FT8 activity involving SP1MGM, decoded by SO8OO in southeastern Poland. 5,075 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 39 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-05.

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 5,075 FT8 messages attributed to SP1MGM as the transmitting token by decoded message structure across 39 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (48%), followed by 160 m (23%) and 40 m (23%). Most decodes (51%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +4 dB.

Overview

5,075

Messages attributed

UTC dates decoded

470

Active 15-min windows

+4 dB

Estimated median S/N

Bands

160m · 1,170 80m · 2,444 60m · 208 40m · 1,148 20m · 105

First attributed message: 2026-06-09
Last attributed message: 2026-10-05 06:26 UTC

Observed FT8 message patterns

Attributed sample: 5,075 messages
Active dates: 39 UTC dates
Estimated median S/N: +4 dB
Estimated 10th-90th percentile: -8 to +14.2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 119, moderate (-15 to -9 dB) 353, strong (≥ -8 dB) 4,603.

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 SP1MGM in decoded directed-looking exchanges:

F1PBZ · France ×5 R5AV · European Russia ×4 DL9KM · Fed. Rep. of Germany ×3 DM5KM · Fed. Rep. of Germany ×3 F1IQH · France ×3 M7KSV · England ×3 DH3KR · Fed. Rep. of Germany ×2 DL4BCY · Fed. Rep. of Germany ×2 DO7RMS · Fed. Rep. of Germany ×2 GB8VJ · England ×2 HB3YPJ · Switzerland ×2 M7CWF · England ×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 SP1MGM

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: JO73 · 3,250 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 613 km (approx.)
Last such locator decoded: 2026-10-05 06:26 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	SP1MGM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-05 06:25	40m	-2 / -	IW6NSG	- / -	3	Partial capture
10-05 06:24	40m	-1 / -	RD3FY	- / +3	3	✓ Closing fragment
10-05 06:21	40m	-13 / -	PD0CQ	- / -	3	Partial capture
10-05 06:19	40m	-11 / -	YU4FQN	- / -	4	Partial capture
10-05 06:17	40m	-10 / -	SP8WAS	- / -	3	Partial capture
10-05 06:12	40m	- / +4	OE7FTI	-13 / -	3	✓ Closing fragment
10-05 05:53	40m	- / -15	3Z4DX	+15 / -	3	Partial capture
10-05 05:33	160m	-12 / +1	DO7RMS	-8 / -5	5	✓ Full exchange observed
10-05 05:10	160m	0 / -4	S59YL	+4 / -3	5	✓ Full exchange observed
10-05 05:00	160m	+3 / -	DL3WA	- / -	3	Partial capture
10-05 04:29	160m	+12 / +4	SQ6WA	-2 / -5	5	✓ Full exchange observed
10-05 04:27	160m	+10 / +3	DO4ATK	-3 / -2	5	✓ Full exchange observed
10-05 03:58	160m	+7 / -	OE5SMJ	- / -	3	Partial capture
10-05 03:57	160m	+8 / -	F4FWT	-11 / -6	4	✓ Closing observed
10-05 03:11	160m	+7 / -10	RA3GDV	-7 / -2	5	✓ Full exchange observed
10-05 03:09	160m	+9 / -	3Z4DX	+30 / +5	5	✓ Full exchange observed
10-05 02:57	160m	+4 / -	NP3RK	- / -19	6	Partial capture
10-05 02:37	160m	+5 / +3	DL1VVQ	+1 / -9	6	✓ Full exchange observed
10-04 23:04	160m	+10 / -	OM3TWM	+12 / -	6	✓ Full exchange observed
10-04 22:20	160m	+7 / -8	MW0DNF	-24 / -	6	Partial capture
10-04 22:02	160m	+2 / -	DG1ASE	- / -	4	Partial capture
10-04 21:46	160m	+7 / -10	ES5NC	+14 / -	3	✓ Full exchange observed
10-04 21:30	160m	- / -9	DF2RG	+4 / -	2	✓ Closing fragment
10-04 20:49	160m	+6 / -	YO2NAA	- / -	4	Partial capture
10-04 20:46	160m	+4 / -	MW7GQB	- / -	4	Partial capture
10-04 20:44	160m	+7 / -	DL7UKM	- / -	3	Partial capture
10-04 20:42	160m	+4 / -20	II5GG	-18 / -20	7	✓ Full exchange observed
10-04 20:31	160m	+4 / 0	UG4L	-14 / -11	5	✓ Full exchange observed
10-04 20:20	160m	+4 / 0	M8VGU	-21 / -17	4	✓ Full exchange observed
10-04 20:11	160m	+6 / -	R7ZY	- / -	3	Partial capture
10-04 20:07	160m	+5 / +7	EI2KM	-7 / +6	5	✓ Full exchange observed
10-04 19:58	160m	-1 / -4	DL7ET	-9 / -	4	Partial capture
10-04 19:31	160m	+2 / -5	SP7AS	-5 / -9	5	✓ Full exchange observed
10-04 19:13	160m	- / +9	OH5YZ	-12 / -	9	Partial capture
10-04 19:13	160m	+7 / -20	RZ1OK	-16 / -17	9	✓ Full exchange observed
10-04 19:11	160m	+8 / -6	R7OF	-2 / -7	5	✓ Full exchange observed
10-04 19:10	160m	+9 / +5	RN3AOE	-20 / -9	5	✓ Full exchange observed
10-04 19:06	160m	+9 / -8	RN3QTS	-4 / -14	7	✓ Full exchange observed
10-04 19:01	160m	+2 / -7	F6DHD	-11 / -4	5	✓ Full exchange observed
10-04 18:58	160m	+3 / -	DL1RNW	+12 / -3	5	Partial capture
10-04 18:56	160m	+2 / -8	IZ1ANK	-9 / -	4	Partial capture
10-04 18:49	160m	-2 / -15	RX3I	-1 / 0	7	✓ Full exchange observed
10-04 18:48	160m	-3 / -	R2RAR	-6 / -9	4	✓ Closing observed
10-04 18:46	160m	0 / -5	S58X	-8 / -	6	Partial capture
10-04 18:40	160m	0 / -	UN7BDZ	- / -	4	Partial capture
10-04 18:38	160m	-3 / -	R2ATY	- / -17	7	✓ Closing fragment
10-04 18:36	160m	+7 / -	UA3TJC	- / -15	4	✓ Closing fragment
10-04 18:35	160m	-1 / +1	LZ2IP	+10 / +9	5	✓ Full exchange observed
10-04 18:33	160m	+3 / -13	RM5P	-20 / -15	5	✓ Full exchange observed
10-04 18:30	160m	+5 / -	DC0GL	-22 / -11	7	✓ 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
061815 -10 2005  SP8WAS SP1MGM JO73 (x2)
061915  -9 2005  YU4FQN SP1MGM JO73 (x4)
062115 -15 2006  PD0CQ SP1MGM JO73 (x3)
062415  +0 2006  RD3FY SP1MGM JO73 (x3)
062545  -2 2006  IW6NSG SP1MGM JO73 (x3)

160m

UTC    dB Audio  Message
043045 +14 1970  SQ6WA SP1MGM 73
043345 +12 1970  IT9JNR SP1MGM 73
050045  +2 1971  DL3WA SP1MGM JO73 (x3)
051045  +0 1970  S59YL SP1MGM JO73
051100  +5 1872  SP1MGM S59YL -04
051115  -3 1970  S59YL SP1MGM R-03
051130  +2 1872  SP1MGM S59YL RR73
051145  +2 1970  S59YL SP1MGM 73
053345 -11 1970  DO7RMS SP1MGM JO73
053400  -7  947  SP1MGM DO7RMS +01
053415 -12 1970  DO7RMS SP1MGM R-05
053430  -8  947  SP1MGM DO7RMS RR73
053445 -14 1970  DO7RMS SP1MGM 73

80m

UTC    dB Audio  Message
205730 +15  615  IU1HGN SP1MGM JO73 (x3)
205930  +5 1501  MM0ULL SP1MGM JO73 (x2)
210045  +0 2034  SP1MGM SP2BBQ +17 (x2)
210215  +3 2104  IK0PHY SP1MGM JO73 (x3)
210345  +5 1082  LA5LLA SP1MGM JO73 (x2)
210615  +3 1381  IT9BYL SP1MGM JO73 (x3)

60m

UTC    dB Audio  Message
192615  -6  538  SP1MGM PF1B 73
192845  +4  729  TM47CDXC SP1MGM JO73 (x2)
193415  +6  485  <...> SP1MGM +07
051430  -5 1721  K1QD SP1MGM JO73
051500  -5  901  ON5EA SP1MGM JO73
051515 -15  902  SP1MGM ON5EA +15
051530  +2  901  ON5EA SP1MGM R-17
051545 -11  902  SP1MGM ON5EA RR73
051600  -1  901  ON5EA SP1MGM 73
051630  -5 1847  K1QD SP1MGM JO73
054145  -2  830  SQ100LKK SP1MGM JO73
054200  -3  830  SP1MGM SQ100LKK +03
054215  +1  829  SQ100LKK SP1MGM R-14
054345  +5  698  <...> SP1MGM R-14

10m

UTC    dB Audio  Message
161645 -14 1842  SP1MGM R7OV KN87 (x3)
162145  -6  496  SP1MGM TK5K R+02 (x2)
115800 -17 1181  SP1MGM YG1ATA -16

20m

UTC    dB Audio  Message
054945 -21 1983  SP1MGM UA3GDJ KO92 (x2)
180630  +1 2342  SP1MGM PD7JLP JO32
191215  -6 2275  K0DTM SP1MGM JO73 (x4)
192015  -3 2207  WA2EIO SP1MGM JO73 (x4)
192515  +5  384  JA3EQC SP1MGM JO73 (x4)

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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