DM5CM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO60

Receiver-side FT8 activity involving DM5CM, decoded by SO8OO in southeastern Poland. 267 FT8 messages attributed to this token as transmitter, on 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-09-01 and 2026-09-14.

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 267 FT8 messages attributed to DM5CM as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (72%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -7 dB.

Overview

267

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 267

First attributed message: 2026-09-01
Last attributed message: 2026-09-14 17:51 UTC

Observed FT8 message patterns

Attributed sample: 267 messages
Active dates: 8 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -13 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 81, strong (≥ -8 dB) 173.

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 DM5CM in decoded directed-looking exchanges:

HB9EFK · Switzerland ×2 4X1UF · Israel 9A4ZM · Croatia 9A5MP · Croatia DH9GCD · Fed. Rep. of Germany DL1HDL · Fed. Rep. of Germany DL5DQZ · Fed. Rep. of Germany F1UNR · France F5LMJ · France F5RRS · France HG8LXL · Hungary K4YT · United States

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 DM5CM

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: JO60 · 160 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 628 km (approx.)
Last such locator decoded: 2026-09-14 17:51 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	DM5CM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 17:51	40m	-6 / -	II6IALU	- / -9	2	Partial capture
09-14 17:49	40m	+2 / -	SP7TF	- / -	2	✓ Closing fragment
09-14 17:48	40m	+2 / -	R1AV	- / -6	3	✓ Closing fragment
09-14 17:46	40m	-1 / -3	UB2FEK	-3 / -11	5	✓ Full exchange observed
09-11 16:05	40m	-10 / -	EX7CQ	- / -	5	Partial capture
09-11 16:04	40m	-3 / -	S56LKP	- / -	3	Partial capture
09-11 16:00	40m	-3 / +1	PC2F	-14 / -	5	✓ Closing observed
09-11 15:58	40m	-10 / -12	HG8LXL	0 / -	6	✓ Closing observed
09-11 15:56	40m	-4 / -	OH5KNL	- / +3	3	✓ Closing fragment
09-11 15:54	40m	-11 / -	EX7CQ	- / -	2	Partial capture
09-11 15:52	40m	-13 / -	Z34CMF	- / -	3	Partial capture
09-10 16:25	40m	-8 / -	PA0MUS	- / -	2	Partial capture
09-10 16:22	40m	-11 / -	SP4MPH	- / -4	3	✓ Closing fragment
09-08 19:01	40m	-14 / -	SV2ROG	- / -18	5	✓ Closing fragment
09-08 18:58	40m	-12 / -	F5LMJ	- / -16	3	✓ Closing fragment
09-08 18:56	40m	-17 / -	BG7BVP	- / -	2	Partial capture
09-08 18:55	40m	-13 / -	M9PCA	- / +5	3	✓ Closing fragment
09-08 18:48	40m	-9 / -	HB9EFK	+4 / -	4	✓ Closing observed
09-08 18:43	40m	- / -16	F5RRS	+9 / -	3	✓ Closing fragment
09-08 18:42	40m	- / -8	PE1NPS	-8 / -	3	Partial capture
09-08 18:36	40m	-4 / -8	RA2FCF	-1 / -	7	✓ Closing observed
09-08 18:34	40m	-6 / -	BG7BVP	- / -	2	Partial capture
09-05 18:21	40m	-5 / -	HB9GXI	- / -	2	Partial capture
09-05 18:18	40m	-4 / -	T77NC	- / -	4	Partial capture
09-05 10:19	40m	- / +9	SP1LIS	-11 / -	2	✓ Closing fragment
09-04 20:52	40m	+2 / -	SQ8NA	-21 / +3	4	✓ Closing observed
09-04 20:47	40m	-1 / -	CT8/PC3M	- / -	2	Partial capture
09-04 20:45	40m	-2 / -	CN8NS	- / -	2	Partial capture
09-04 20:42	40m	-2 / -	CN8NS	- / -	3	Partial capture
09-04 20:40	40m	-8 / -	MM0HVU	- / -	3	Partial capture
09-04 20:32	40m	+1 / -	HB9/ON4AEO	- / -20	6	Partial capture
09-04 20:30	40m	-4 / -	CN8NS	- / -	2	Partial capture
09-04 20:27	40m	-5 / -	RI1FJL	- / -	7	Partial capture
09-04 20:25	40m	-4 / -	8Z1IT	- / -	3	Partial capture
09-04 20:22	40m	-2 / -3	LB5AK	-7 / +9	7	✓ Full exchange observed
09-04 20:21	40m	-2 / -18	SP6FME	+2 / +6	5	✓ Full exchange observed
09-04 20:20	40m	-3 / 0	DL1HDL	+4 / +6	8	✓ Full exchange observed
09-04 20:18	40m	-6 / -	CN8NS	- / -	2	Partial capture
09-04 20:16	40m	-1 / -	4X1UF	-11 / -11	5	✓ Closing observed
09-04 20:13	40m	0 / -4	OE3PBS	+6 / +1	8	✓ Full exchange observed
09-04 20:10	40m	-4 / -	MI0TBE	- / -	2	Partial capture
09-04 20:08	40m	-4 / -	YO2LFP	- / -	3	Partial capture
09-03 16:26	40m	-4 / -	<...>	- / -	2	Partial capture
09-03 16:23	40m	-10 / -	R2FBW	-15 / -	3	✓ Closing observed
09-03 16:22	40m	-10 / -4	DL5DQZ	+2 / -	8	✓ Full exchange observed
09-03 16:15	40m	- / +4	OE4AHG	-4 / -	2	✓ Closing fragment
09-03 16:14	40m	-3 / -3	OE3ZIO	-4 / -	2	Partial capture
09-03 12:54	40m	-10 / -	GM3AND	- / -	2	Partial capture
09-03 12:49	40m	-12 / -	DJ0MAB	- / +4	2	Partial capture
09-03 12:47	40m	-12 / -2	SP9UPH	-6 / -	5	✓ 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
160745  -9 1584  EX7CQ DM5CM JO60 (x2)
174530  -6 1583  R2AFI DM5CM JO60
174630  -5 1583  UB2FEK DM5CM JO60
174645  -3 2996  DM5CM UB2FEK -03
174700  +1 1583  UB2FEK DM5CM R-11
174715  -3 2997  DM5CM UB2FEK RR73
174730  +2 1583  UB2FEK DM5CM 73
174800  +1 1583  R1AV DM5CM -06 (x3)
174930  +4 1584  SP7TF DM5CM R+16 (x2)
175115  -7 1584  II6IALU DM5CM JO60 (x2)

80m

UTC    dB Audio  Message
191430 +12 1577  DM5CM US2YW KN28
191430 -14  242  DM5CM DL4YDR JO32
191500 +12 1577  DM5CM US2YW KN28
191500 +11 2243  DM5CM OK1FED JO70
191500 -19  891  DM5CM DO1MGN JO50
191500 -14  244  DM5CM DL4YDR JO32
191500 -16 1900  DM5CM DL1DCT JO31
191530 +14 2243  DM5CM OK1FED JO70 (x3)
191730 +15 1578  DM5CM US2YW KN28
191730 +12 2243  DM5CM OK1FED RR73
191800 +18 1578  DM5CM US2YW KN28 (x2)
193315 -16 1699  DM5CM YO4NT -18

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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