M7TUP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO90

Receiver-side FT8 activity involving M7TUP, decoded by SO8OO in southeastern Poland. 2,164 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 70 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-04.

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 2,164 FT8 messages attributed to M7TUP as the transmitting token by decoded message structure across 70 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (82%), followed by 40 m (11%) and 10 m (7%). The busiest six-hour window was 08:00-14:00 UTC, containing 41% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.8 dB.

Overview

2,164

Messages attributed

UTC dates decoded

410

Active 15-min windows

-9.8 dB

Estimated median S/N

Bands

40m · 232 20m · 1,785 10m · 147

First attributed message: 2026-06-06
Last attributed message: 2026-10-04 06:49 UTC

Observed FT8 message patterns

Attributed sample: 2,164 messages
Active dates: 70 UTC dates
Estimated median S/N: -9.8 dB
Estimated 10th-90th percentile: -18.7 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 451, moderate (-15 to -9 dB) 755, strong (≥ -8 dB) 958.

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 M7TUP in decoded directed-looking exchanges:

TK5K · Corsica ×2 LZ3CB · Bulgaria ×2 DO8SD · Fed. Rep. of Germany EA3HKA · Spain HB9CEX · Switzerland YO9HP · Romania 9A2L · Croatia 9A2LM · Croatia 9A5JU · Croatia 9A6NCC · Croatia 9A6NTK · Croatia 9Y4DG · Trinidad & Tobago

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 M7TUP

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: IO90 · 1,516 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,616 km (approx.)
Last such locator decoded: 2026-10-04 06:46 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	M7TUP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 06:47	40m	-15 / -	HB9ZHK	- / -14	3	Partial capture
10-04 06:36	40m	- / -20	OE7LVI	-3 / -	3	✓ Closing fragment
10-04 06:35	40m	-18 / -	DG3AWF	-16 / -	2	✓ Closing observed
10-01 20:54	40m	-17 / -5	EA5KE	-12 / +3	3	✓ Full exchange observed
10-01 20:29	40m	-4 / -16	RZ6L	+2 / +2	5	✓ Full exchange observed
09-30 22:54	40m	-5 / -	W2NTV	- / -8	2	Partial capture
09-30 22:53	40m	-4 / -	HA1SU	- / -4	2	✓ Closing fragment
09-30 22:48	40m	-8 / -	WA4KBM	- / -	4	Partial capture
09-30 22:45	40m	-17 / -	N9MAX	- / -15	2	Partial capture
09-30 22:42	40m	-10 / -	N2NCB	- / -16	5	Partial capture
09-30 22:39	40m	-6 / -	YO2MKE	- / +1	2	Partial capture
09-30 22:37	40m	-10 / -	HF100PKP	- / +7	2	Partial capture
09-30 22:31	40m	-5 / -	9A7BB	- / -10	2	Partial capture
09-30 22:28	40m	-8 / -	CT1DUD	- / +2	3	✓ Closing fragment
09-30 22:23	40m	-12 / -	K4NV	- / -	2	Partial capture
09-30 22:22	40m	-12 / -	LZ1ZF	- / -	2	Partial capture
09-30 22:20	40m	-12 / -	9A4AA	- / +2	3	✓ Closing fragment
09-30 22:18	40m	-11 / -	IW1PPB	-4 / +2	4	✓ Closing observed
09-30 22:16	40m	-10 / -	SX2LGT	- / -5	2	✓ Closing fragment
09-30 22:14	40m	- / -17	RA5AD	-8 / -	2	✓ Closing fragment
09-30 22:12	40m	-13 / -	SP9GCZ	- / +7	3	✓ Closing fragment
09-30 22:11	40m	-14 / -7	SV3AUW	-14 / -	3	✓ Closing observed
09-30 22:09	40m	-18 / -	CU6AB	- / -	2	Partial capture
09-29 22:05	40m	-12 / -17	K1SM	-24 / -3	4	Partial capture
09-29 21:58	40m	-12 / -	RZ4FWA	-18 / -12	7	✓ Closing observed
09-29 21:56	40m	-12 / -	VJ6X	- / -24	4	✓ Closing fragment
09-29 21:49	40m	-13 / -3	F4NGR	-18 / +8	16	✓ Full exchange observed
09-29 21:42	40m	-10 / -	EA5FQ	- / -2	2	✓ Closing fragment
09-29 21:29	40m	-10 / -	LZ3CB	-8 / -	3	✓ Closing observed
09-29 10:13	40m	- / -	PC2F	-23 / -	3	Partial capture
09-27 16:38	40m	- / -	PD0IFI	+3 / -	3	Partial capture
09-27 16:31	40m	-20 / +2	DG9SEH	-8 / -	3	✓ Closing observed
09-27 16:26	40m	-22 / -14	OK1AAM	+3 / -	3	✓ Closing observed
09-27 16:19	40m	- / -3	DL9FA	-3 / -	3	✓ Closing fragment
09-27 07:04	40m	- / -7	OK1VCB	-8 / -	3	✓ Closing fragment
09-27 06:55	40m	- / -6	F4PAN	-16 / -	2	✓ Closing fragment
09-27 06:48	40m	- / -	SP1ZMO	-11 / -	2	Partial capture
09-27 06:21	40m	- / -	F4BYA	0 / -	3	Partial capture
09-27 06:19	40m	- / -9	SP4MPH	-14 / -	2	Partial capture
09-27 06:15	40m	-21 / -	S58MU	-9 / +4	4	✓ Closing observed
09-27 06:10	40m	- / -6	OE2CAL	+8 / -	2	✓ Closing fragment
09-27 06:09	40m	- / -	F4BYA	0 / -	3	Partial capture
09-27 06:01	40m	- / -11	OE5CCN	+6 / -	2	✓ Closing fragment
09-27 05:55	40m	-17 / +7	HB9EOT/P	-10 / -5	3	Partial capture
09-24 22:50	40m	-18 / -	EA6AJT	- / -	2	✓ Closing fragment
09-15 12:56	40m	- / -	ON3YDM	-11 / -	2	✓ Closing fragment
09-11 22:19	40m	-11 / -	YL2KF	- / -11	2	✓ Closing fragment
09-11 22:16	40m	- / -	PC2F	-11 / -	2	Partial capture
09-11 22:14	40m	-15 / -	OK1HEH	-8 / -9	3	✓ Closing observed
09-11 22:07	40m	-14 / -7	EA1Y	-12 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
210300 -15 2011  PI4DX M7TUP IO90
062445 -17 2013  PJ2/SM4KYN M7TUP R-02
062715 -13  881  M7TUP HB9EOT -05
063045  -1 1679  M7TUP OE/DG7CF -12
063530 -16 2164  M7TUP DG3AWF RR73
063545 -18 2013  DG3AWF M7TUP 73
063600  +0 2279  M7TUP OE7LVI JN57 (x3)
064100 -23 2014  K1HZ M7TUP 73
064200 -21 2013  CQ M7TUP IO90 (x2)
064715 -13 2013  HB9ZHK M7TUP -14 (x3)

20m

UTC    dB Audio  Message
152430  -5 2050  KL7TC M7TUP 73
154915  -8 2049  CQ M7TUP IO90                         a1 (x4)
172545  -6 2051  <...> M7TUP IO90 (x3)
172845 -12 2051  SP7OK M7TUP IO90 (x2)
173045 -10 2052  UB6C M7TUP IO90 (x3)
173300 -12 2052  EA7FMI M7TUP R+04 (x2)

10m

UTC    dB Audio  Message
101345 -11  691  M7TUP I1YGQ -05
102430 -12 1110  M7TUP DN9MDS +02
102445 -24 2071  DN9MDS M7TUP R+01
102945 -24 2071  CQ M7TUP IO90
103100 -14 2072  M7TUP HB9CNU JN37 (x3)
103545 -19 1313  M7TUP EA3HKA +07
103630 -22 2070  EA3HKA M7TUP 73
090745  -4  501  M7TUP TK5K +04 (x2)
201600 -22 2071  EA8DS M7TUP IO90
104400  -8 1258  M7TUP DO8SD -18
104445 -20 2071  DO8SD M7TUP 73
105300 -24 2071  DL3HBT M7TUP IO90

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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