M5DZH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: England Most frequent locator attributed to this token: IO83

Receiver-side FT8 activity involving M5DZH, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-08-30.

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 33 FT8 messages attributed to M5DZH as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

20m · 33

First attributed message: 2026-07-07
Last attributed message: 2026-08-30 11:37 UTC

Observed FT8 message patterns

Attributed sample: 33 messages
Active dates: 5 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -21 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 17.

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 M5DZH in decoded directed-looking exchanges:

BG7BMG · China BH4GCQ · China DJ0BS · Fed. Rep. of Germany DL1HHH · Fed. Rep. of Germany ES2HV · Estonia F4EOC · France F6EKI · France IQ4JO · Italy PD4RJ · Netherlands R6OP · European Russia SA3SHN · Sweden DL1FAM · Fed. Rep. of Germany

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 M5DZH

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: IO83 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,744 km (approx.)
Last such locator decoded: 2026-08-30 11:37 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	M5DZH S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 12:20	40m	- / -12	OZ9FF	-13 / -	2	✓ Closing fragment
08-30 12:12	40m	- / +3	DL1FAM	-14 / -	4	✓ Closing fragment
08-30 11:33	20m	-11 / -	II7MGBT	- / -	9	Partial capture
08-30 11:27	20m	-3 / -9	R6OP	-4 / -9	6	✓ Full exchange observed
08-30 11:22	20m	-8 / -	SA3SHN	-11 / -	2	✓ Closing observed
08-22 15:49	20m	0 / -	ES2HV	- / -1	2	✓ Closing fragment
08-22 15:46	20m	-2 / -	BH4GCQ	- / -17	2	✓ Closing fragment
08-22 15:43	20m	-9 / -	BG7BMG	- / -	3	Partial capture
08-22 13:42	20m	-9 / -10	PD4RJ	-8 / -	4	✓ Closing observed
08-22 13:40	20m	- / -	F6EKI	-6 / -	3	✓ Closing fragment
07-15 12:33	20m	-18 / -	F4EOC	-24 / +7	3	✓ Closing observed
07-15 12:33	20m	- / -	DL6EL	-13 / -	3	Partial capture
07-15 12:32	20m	-20 / +4	DL1HHH	-8 / +9	5	✓ Full exchange observed
07-15 12:17	20m	-16 / -	YO6KGS	- / -13	2	Partial capture
07-14 12:28	20m	- / +1	DJ0BS	-12 / -	4	✓ Closing fragment
07-04 15:53	40m	- / +10	DL1KWB	-4 / -	2	✓ Closing fragment
06-28 22:26	40m	- / -	IK4LZH	-8 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
222645  -8  536  M5DZH IK4LZH JN54
222715 -14 1335  M5DZH RA3WY KO81
222715  -9  536  M5DZH IK4LZH JN54
223045 -15 1334  M5DZH RA3WY 73
155315  -5  531  M5DZH DL1KWB +10 (x2)
121215 -12 1699  M5DZH DL1FAM JN49 (x4)
122000 -15 2314  M5DZH OZ9FF -12 (x2)

20m

UTC    dB Audio  Message
112745  -2 1558  R6OP M5DZH R-09
112800  -3 1242  M5DZH R6OP -09
112815  -2 1558  R6OP M5DZH R-01
112830  -6 1243  M5DZH R6OP RR73
112845  -3 1558  R6OP M5DZH 73
113115  -6 1558  RM6OS M5DZH IO83
113300  -8 1558  II7MGBT M5DZH IO83 (x9)

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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