DM4ET — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO52

Receiver-side FT8 activity involving DM4ET, decoded by SO8OO in southeastern Poland. 199 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-07-29.

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 199 FT8 messages attributed to DM4ET as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (52%), followed by 80 m (23%) and 40 m (22%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

199

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 46 40m · 43 20m · 103 10m · 7

First attributed message: 2026-06-16
Last attributed message: 2026-07-29 23:15 UTC

Observed FT8 message patterns

Attributed sample: 199 messages
Active dates: 14 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 74, moderate (-15 to -9 dB) 70, strong (≥ -8 dB) 55.

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 DM4ET in decoded directed-looking exchanges:

3Z6I · Poland A71UN · Qatar BA8BLK · China BI4VKA · China D2UY · Angola EA5IHM · Spain EX8ABR · Kyrgyzstan II7WWA · Italy IQ5AAR · Italy IW0FGX · Italy JA4FKX · Japan R4ML · European Russia

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 DM4ET

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: JO52 · 142 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 803 km (approx.)
Last such locator decoded: 2026-07-29 23:08 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	DM4ET S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-29 23:01	20m	-14 / -	BI4VKA	- / -5	2	✓ Closing fragment
07-29 22:59	20m	-13 / -	BA8BLK	- / -5	2	✓ Closing fragment
07-29 22:57	20m	-12 / -	EX8ABR	- / +3	3	✓ Closing fragment
07-29 22:43	20m	- / -14	TN8GD	-10 / -	2	✓ Closing fragment
07-24 22:36	20m	-21 / -	9Y4C	- / -	8	Partial capture
07-24 22:33	20m	-21 / -	YL3RK	-17 / -	8	✓ Closing observed
07-24 22:28	20m	-12 / -	9Y4C	- / -	5	Partial capture
07-24 22:26	20m	-13 / -	YL3RK	- / -	3	Partial capture
07-24 22:22	20m	-18 / -	9Y4C	- / -	4	Partial capture
07-16 08:01	20m	-15 / -	TI5RR	- / -	3	Partial capture
07-10 19:11	20m	-11 / -	T77RN	- / -1	5	✓ Closing fragment
07-10 19:06	20m	-4 / -	SP0LPR	- / -	2	✓ Closing fragment
07-10 08:15	20m	-20 / -3	IW0FGX	-10 / -	3	✓ Full exchange observed
07-09 20:59	20m	- / -13	JA4FKX	-15 / -	3	Partial capture
07-08 19:49	20m	- / -16	JA6TXU	-22 / -	2	Partial capture
07-02 00:31	80m	- / -7	II3WWA	-7 / -	2	✓ Closing fragment
06-30 10:37	10m	-14 / -	8A1WWA	- / -	6	Partial capture
06-30 09:56	10m	- / -15	II9WWA	-17 / -	2	Partial capture
06-30 09:45	20m	- / -17	II7WWA	-16 / -	3	✓ Closing fragment
06-30 09:39	20m	-19 / -11	3Z6I	+16 / -	3	✓ Closing observed
06-29 22:47	20m	-13 / -	9M8WWA	- / -	5	Partial capture
06-29 22:37	20m	-16 / -	9M8WWA	- / -	6	Partial capture
06-27 08:19	20m	-22 / -	IQ5AAR	-12 / -	4	✓ Closing observed
06-26 22:55	20m	- / -11	A71UN	-8 / -	2	✓ Closing fragment
06-26 22:30	20m	- / -19	TA2ED	-20 / -	2	Partial capture
06-26 22:16	20m	- / -7	A71UN	-14 / -	2	Partial capture
06-24 14:31	20m	-19 / -	IQ6PE	- / -	2	Partial capture
06-24 14:27	20m	-20 / -	IQ1TO	- / -	3	Partial capture
06-24 13:56	20m	-18 / -	3B8HK	- / -	2	Partial capture
06-24 13:53	20m	-20 / -	3B8HK	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
224300 -10  858  DM4ET TN8GD -14 (x2)
225715 -14  957  EX8ABR DM4ET JO52 (x3)
225915 -13  957  BA8BLK DM4ET R-05 (x2)
230115 -12  956  BI4VKA DM4ET -05 (x2)
230215 -12  956  BG7BMG DM4ET R-12
230345 -15  956  BG4TRN DM4ET +01
230545 -12  956  VA3SPN DM4ET RR73
230845 -11  956  JT1BZ DM4ET JO52 (x3)

80m

UTC    dB Audio  Message
003130  -6  590  DM4ET II3WWA -07 (x2)

10m

UTC    dB Audio  Message
095645 -15 1737  DM4ET II9WWA -15 (x2)
103445 -10 2118  CR2WWA DM4ET R-10
103715 -15 2118  8A1WWA DM4ET JO52 (x6)
141645  -4 2701  DM4ET IQ4JO JN63

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee