DF8MH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO33

Receiver-side FT8 activity involving DF8MH, decoded by SO8OO in southeastern Poland. 987 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 47 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-13.

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 987 FT8 messages attributed to DF8MH as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (35%) and 80 m (7%). Most decodes (50%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

987

Messages attributed

UTC dates decoded

207

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 65 40m · 532 20m · 349 10m · 41

First attributed message: 2026-06-07
Last attributed message: 2026-09-13 14:23 UTC

Observed FT8 message patterns

Attributed sample: 987 messages
Active dates: 47 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -2.9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 212, moderate (-15 to -9 dB) 455, strong (≥ -8 dB) 320.

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 DF8MH in decoded directed-looking exchanges:

F1PBZ · France ×2 IW3BS · Italy ×2 CT3MD · Madeira Islands ×2 IK4LZH · Italy ×2 IU1DXU · Italy ×2 DJ0MAB · Fed. Rep. of Germany ×2 LB2WD · Norway ×2 HB3YPJ · Switzerland ×2 9A2TN · Croatia F4FCE/P · France F5SZY · France GJ0KYZ · Jersey

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 DF8MH

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: JO33 · 647 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,091 km (approx.)
Last such locator decoded: 2026-09-13 14:23 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	DF8MH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-13 14:29	40m	- / +9	HB9SFL	-13 / -	2	Partial capture
09-13 14:23	40m	- / -	DJ3QK	-15 / -	2	Partial capture
09-11 15:24	40m	- / -4	HA1UA	-9 / -	3	✓ Closing fragment
09-11 15:17	40m	- / -11	SQ2JDM	-2 / -	3	✓ Closing fragment
09-11 14:39	40m	- / +10	DJ1NE	-13 / -	3	✓ Closing fragment
09-11 13:20	40m	-16 / -	SQ100PKP	- / -	5	Partial capture
09-11 13:16	40m	-13 / -	R3KOW/M	- / -	7	Partial capture
09-11 13:14	40m	-12 / -	DL7UKM	- / -	5	Partial capture
09-11 13:12	40m	-15 / -	GX4RAF/P	- / -	3	Partial capture
09-11 10:17	40m	-17 / +4	OK3MB	-12 / -6	5	✓ Full exchange observed
09-11 08:40	40m	- / -	OZ1JMJ	-8 / -	2	Partial capture
09-11 08:40	40m	-14 / -	F5ADH	- / -7	2	✓ Closing fragment
09-11 08:22	40m	-16 / -	DJ3NJ	- / +4	6	✓ Closing fragment
09-11 07:28	40m	-10 / -	HB9ITZ	- / -12	2	Partial capture
09-11 07:12	40m	-6 / -	DL2BCY	- / -	3	Partial capture
09-11 06:32	40m	-7 / -	9Y4DG	- / -13	2	✓ Closing fragment
09-11 06:12	40m	-12 / -	IZ8PPI	- / -12	15	✓ Closing fragment
09-11 05:52	40m	-5 / -6	EU6KA	0 / -	5	✓ Closing observed
09-11 05:28	40m	-15 / -8	LA7PKA	-10 / +1	5	✓ Full exchange observed
09-10 18:32	40m	- / -6	RN6MA	-8 / -	2	Partial capture
09-10 18:28	40m	-4 / -	DL2DCQ	- / -	2	Partial capture
09-10 18:25	40m	-4 / -	EH2PDA	- / -	6	Partial capture
09-10 17:41	40m	-14 / -	OH6IH	- / -	2	Partial capture
09-10 17:38	40m	-9 / -	SV9QWC	- / -	3	Partial capture
09-10 17:37	40m	-2 / -	IN3IZQ	-5 / -	3	✓ Closing observed
09-09 12:37	40m	-12 / -	DF1IH	- / +2	3	✓ Closing fragment
09-09 12:22	40m	- / -	DF1IH	-12 / -	2	Partial capture
09-09 12:21	40m	- / -5	DL4KSD	-13 / -	6	✓ Closing fragment
09-09 11:42	40m	- / -	DK2SW	-15 / -	3	✓ Closing fragment
09-09 10:58	40m	-9 / -	G8KHF	- / -	3	Partial capture
09-09 09:32	40m	- / -	PD1ADA	-24 / -	2	Partial capture
09-09 07:17	40m	-4 / -	IZ8PPI	- / -17	6	Partial capture
09-09 07:10	40m	-8 / -	MM7FTH	- / +1	3	✓ Closing fragment
09-09 06:39	40m	-10 / -11	RC3DN	-17 / -15	3	✓ Full exchange observed
09-09 06:38	40m	- / -25	F4MZI	-19 / -	5	Partial capture
09-09 06:09	40m	-12 / -	EA3CFV	- / -1	2	✓ Closing fragment
09-09 05:23	40m	- / -	UR4QWW	-16 / -	3	Partial capture
09-09 05:22	40m	- / -	DG5PW	-8 / -	2	Partial capture
09-08 17:28	40m	- / -	DK2NO	+3 / -	5	Partial capture
09-08 17:25	40m	-2 / 0	DL4ME	-2 / -	6	✓ Full exchange observed
09-08 17:21	40m	-6 / -	BG7BVP	- / -	6	Partial capture
09-06 18:45	40m	- / -2	G4DBW	-4 / -	2	Partial capture
09-06 15:37	40m	-9 / -	F4JKY/P	- / -22	4	✓ Closing fragment
09-06 15:35	40m	-8 / -	SP3FNW	- / -17	4	✓ Closing fragment
09-06 15:33	40m	-8 / -	DA3W	- / +6	2	✓ Closing fragment
09-06 14:51	40m	- / -	DJ0BS	-10 / -	2	Partial capture
09-06 11:54	40m	- / -6	DM5QM	-14 / -	2	✓ Closing fragment
09-03 17:55	40m	- / 0	DL1JEL	+8 / -	2	Partial capture
09-03 17:52	40m	- / -8	DM8BJF	+11 / -	3	✓ Closing fragment
09-03 16:57	40m	- / -12	HG0NPJ	+6 / -	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
151315 -23  204  CQ DF8MH JO33
151530  -3 1232  DF8MH OM1DLC JN88
151715  -2 1186  DF8MH SQ2JDM -11 (x3)
152415 -13 1953  DF8MH HA1UA -04 (x3)
153000 -18 1193  GX4RAF/P DF8MH JO33
142330 -20 1317  CQ QRP DF8MH JO33
142345  -7 2825  DF8MH DJ3QK JO32 (x2)
142745 -13 1036  DF8MH DL1NB +05
142945 -12 2303  DF8MH HB9SFL +09 (x2)

60m

UTC    dB Audio  Message
123330 -11  877  DF8MH DF1IH JN57 (x2)

20m

UTC    dB Audio  Message
085045 -14 1707  HB10GBT DF8MH JO33
090215 -19 1707  CQ DF8MH JO33
090600  -8  658  G6YXV DF8MH JO33 (x2)
090915 -20  860  G8IXM DF8MH JO33 (x2)
091430 -10  862  DF8MH G8IXM -10
103145 -18 1134  EB5DQ DF8MH R+07 (x2)
164730 -13 2582  DF8MH <...> -11
164900 -12 1258  CQ DF8MH JO33 (x3)
165330 -11  720  IK4LZH DF8MH +03 (x2)

80m

UTC    dB Audio  Message
061245 -20 1167  DO9BAU DF8MH R+04
061300 -10 2302  DF8MH DO9BAU RR73
063100 -20 1167  PE1NAO DF8MH JO33 (x2)
063445 -13 2037  DF8MH DM5KM +03 (x3)
182115  -7 2221  DL2RN DF8MH JO33
182130  +2 2604  DF8MH DL2RN +03
182145 -10 2221  DL2RN DF8MH R+06 (x2)
182300  -1 2604  DF8MH DL2RN RR73
182330 +14 2220  DF8MH UR5NPF KN49 (x3)

10m

UTC    dB Audio  Message
163300 -10 1265  4X1UF DF8MH JO33 (x9)
154015 -18 1705  DF8MH GJ0KYZ +08 (x2)
154115 -16 1828  DF8MH F5SZY IN96 (x3)
155945 -16 1826  DF8MH M0BEW -11

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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