DC5IMM — 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 DC5IMM, decoded by SO8OO in southeastern Poland. 120 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-08-16.

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 120 FT8 messages attributed to DC5IMM as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 80 m (6%) and 40 m (2%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

120

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 7 40m · 2 20m · 111

First attributed message: 2026-07-07
Last attributed message: 2026-08-16 08:51 UTC

Observed FT8 message patterns

Attributed sample: 120 messages
Active dates: 4 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -15 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 57, strong (≥ -8 dB) 52.

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 DC5IMM in decoded directed-looking exchanges:

7M4RRM · Japan 9M2NUZ · West Malaysia BG4UVR · China DF3VG · Fed. Rep. of Germany DL9KM · Fed. Rep. of Germany JA6CNL · Japan K1DKE · United States K2I · United States VE2LBI · Canada DF0GDX · 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 DC5IMM

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 · 81 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 628 km (approx.)
Last such locator decoded: 2026-08-16 08:51 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	DC5IMM S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-16 08:51	40m	-22 / -	DF0GDX	- / -1	2	Partial capture
08-16 08:37	80m	-16 / -	DF0GDX	-5 / +3	5	✓ Full exchange observed
08-01 13:09	20m	-10 / -	N4RWG	- / -8	4	Partial capture
08-01 13:01	20m	-18 / -	9J2FI	- / -	2	Partial capture
08-01 09:50	20m	-16 / -	KE2UK	- / -14	2	Partial capture
07-24 19:00	20m	-8 / -	9J2FI	- / -	3	Partial capture
07-24 18:08	20m	-10 / -	KZ4ZZ	- / -	2	Partial capture
07-24 17:42	20m	-16 / -	HL5BPF	- / -	7	Partial capture
07-24 17:31	20m	-10 / -	9M2NUZ	- / -12	9	✓ Closing fragment
07-24 17:27	20m	-7 / -	BI4IWL	- / -	2	Partial capture
07-07 21:27	20m	-12 / -	AA8CS	- / -	3	Partial capture
07-07 21:23	20m	-6 / -	K2L	- / -	3	Partial capture
07-07 21:21	20m	-3 / -	W1RQ	- / -	3	Partial capture
07-07 21:20	20m	-6 / -	W9RJ	- / -	2	Partial capture
07-07 21:16	20m	-8 / -	7M4RRM	- / -18	5	✓ Closing fragment
07-07 20:53	20m	-7 / -	K1DKE	- / -25	8	✓ Closing fragment
07-07 20:45	20m	-8 / -	N1JUR	- / -17	7	Partial capture
07-07 20:38	20m	-9 / -	<...>	- / -	8	Partial capture
07-07 20:30	20m	-3 / -	K2I	- / -6	5	✓ Closing fragment
07-07 20:12	20m	-10 / -	W8WV	- / -17	2	Partial capture
07-07 20:10	20m	-14 / -	K2I	- / -	2	Partial capture
07-07 20:07	20m	-15 / -	K2H	- / -14	4	Partial capture
07-07 20:05	20m	-10 / -	DL9KM	- / -4	2	✓ Closing fragment
07-07 20:04	20m	-12 / -	KG4OJT	- / -15	2	Partial capture
07-07 19:27	20m	-8 / -	S21SDR	- / -	4	Partial capture
07-07 19:17	20m	-2 / -	BG4UVR	- / -10	2	✓ Closing fragment
07-07 19:13	20m	-8 / -	KE2NV	- / -19	3	Partial capture
07-07 19:11	20m	-13 / -	VE2LBI	- / -13	2	✓ Closing fragment
07-07 19:06	20m	-4 / -	JA6CNL	- / -24	4	✓ Closing fragment
07-07 19:03	20m	-5 / -	VU3OSA	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
085115 -21 1879  DF0GDX DC5IMM JO60 (x2)

80m

UTC    dB Audio  Message
083245 -15 1729  CQ DC5IMM JO60 (x5)
083730  -7 2865  DC5IMM DF0GDX JO60
083745 -12 1730  DF0GDX DC5IMM +03
083800  -5 2865  DC5IMM DF0GDX R+11
083815 -19 1730  DF0GDX DC5IMM RR73
083830  -3 2865  DC5IMM DF0GDX 73

20m

UTC    dB Audio  Message
180830 -12 2620  KZ4ZZ DC5IMM JO60 (x2)
185515 -13 2491  9J2FI DC5IMM JO60 (x4)
095045 -16 2203  KE2UK DC5IMM R-14 (x2)
101400 -20 2306  DC5IMM RA3ZDU KO90
130145 -17 2304  9J2FI DC5IMM JO60 (x2)
130930  -8  540  N4RWG DC5IMM JO60 (x4)

10m

UTC    dB Audio  Message
113800 -12 1628  DC5IMM F6JON/QRP +24

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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