DJ5BM — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DJ5BM, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-08-24.

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 19 FT8 messages attributed to DJ5BM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

20m · 19

First attributed message: 2026-08-23
Last attributed message: 2026-08-24 14:27 UTC

Observed FT8 message patterns

Attributed sample: 19 messages
Active dates: 2 UTC dates
Estimated median S/N: -13 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 4.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DJ5BM in decoded directed-looking exchanges:

CT1BQN · Portugal DL1UDO · Fed. Rep. of Germany EC3A · Spain G8DQP · England Z62NS · Republic of Kosovo DD7EE · Fed. Rep. of Germany DG5BCR · Fed. Rep. of Germany F1IQH · France IN3JRZ · Italy DJ3HW · Fed. Rep. of Germany

Most frequent locator attributed to DJ5BM

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: JO31 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-08-24 14:27 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	DJ5BM S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 06:05	20m	- / +3	Z62NS	-16 / -	2	✓ Closing fragment
08-30 05:46	20m	- / -25	SV8JVM	-7 / -	4	Partial capture
08-24 18:15	40m	- / -11	DD7EE	+3 / -	5	✓ Closing fragment
08-24 18:12	40m	- / -11	DG5BCR	-2 / -	5	✓ Closing fragment
08-24 18:06	40m	- / -	IN3JRZ	-8 / -	2	✓ Closing fragment
08-24 18:04	40m	- / 0	F1PBZ	-6 / -	2	Partial capture
08-24 14:23	20m	-15 / -	F5SFT	- / -	3	Partial capture
08-24 12:33	20m	-17 / -16	2E0VDF	+2 / -	4	Partial capture
08-24 12:30	20m	-12 / -11	DL1UDO	0 / -	4	✓ Closing observed
08-24 12:27	20m	- / +1	G8DQP	-2 / -	3	✓ Closing fragment
08-23 20:54	80m	- / -16	DJ3HW	+3 / -	2	✓ Closing fragment
08-23 20:42	20m	-12 / -	CT1BQN	- / -11	3	✓ Closing fragment
08-23 20:41	20m	-3 / -	EC3A	- / -9	3	✓ Closing fragment
08-23 19:04	40m	- / -	F1IQH	-10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
142400 -15 1280  F5SFT DJ5BM JO31 (x2)
142530 -15 1280  CQ DJ5BM JO31 (x5)
054345 -19 1419  DJ5BM LZ6C -08
054630 -11 1134  DJ5BM SV8JVM -25 (x4)
055600  -5  756  DJ5BM RU3NCW -19
060500 -20  780  DJ5BM Z62NS +03 (x2)

40m

UTC    dB Audio  Message
180500  -9  299  DJ5BM OH3OJ -23
180600  -3  891  DJ5BM IN3JRZ JN56 (x2)
181230  -2  890  DJ5BM DG5BCR JO33 (x5)
181530  +2 1063  DJ5BM DD7EE R-11 (x5)
181830  +1  891  DJ5BM DJ0MAB R-17
182000 -16 2027  DJ5BM PD2MV JO22

10m

UTC    dB Audio  Message
081445  -3  607  DJ5BM F5TMJ JN13

80m

UTC    dB Audio  Message
205445  +0  912  DJ5BM DJ3HW -16 (x2)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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