DL9JM — 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: JO30

Receiver-side FT8 activity involving DL9JM, decoded by SO8OO in southeastern Poland. 30 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-10-23.

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 30 FT8 messages attributed to DL9JM as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 20 m (37%). Most decodes (87%) fell within the six-hour window 08:00-14:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

40m · 19 20m · 11

First attributed message: 2026-07-21
Last attributed message: 2026-10-23 15:30 UTC

Observed FT8 message patterns

Attributed sample: 30 messages
Active dates: 9 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -23 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 3.

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 DL9JM in decoded directed-looking exchanges:

F4JTP · France F4SNF · France G0FHT · England HB9CEX · Switzerland HB9EKJ · Switzerland

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 DL9JM

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: JO30 · 20 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-10-20 13:16 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	DL9JM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 15:30	40m	- / +1	DK1TS	-14 / -	2	Partial capture
10-23 15:30	40m	-8 / -	G0FHT	- / +2	2	✓ Closing fragment
10-20 13:21	40m	- / -11	IK4TVP	-9 / -	4	Partial capture
10-20 13:18	40m	-16 / -	HB9CEX	-4 / -	7	✓ Full exchange observed
10-20 13:17	40m	-16 / -2	F4JTP	-20 / -5	4	✓ Full exchange observed
10-18 08:22	40m	-20 / -	HB9EKJ	- / +1	3	✓ Closing fragment
10-02 16:12	40m	-12 / -	ZL2NU	- / -	2	Partial capture
09-16 08:58	40m	- / +7	IK4TVP	-20 / -	3	Partial capture
09-04 12:42	40m	-24 / -	PD2XX	- / -7	2	Partial capture
09-04 12:38	40m	-22 / -	F4HMP	- / -7	2	Partial capture
08-26 08:49	20m	+1 / -	MW3FLI	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
131815 -16 1826  F4JTP DL9JM 73
131830  -4  743  DL9JM HB9CEX +17 (x4)
132015 -16 1824  HB9CEX DL9JM R+16
132030  -5  743  DL9JM HB9CEX RR73
132100  -7 1334  DL9JM IK4TVP -11 (x4)
153000 -12 1833  G0FHT DL9JM R+02 (x2)
153045 -14 1991  DL9JM DK1TS +01 (x2)

20m

UTC    dB Audio  Message
084900  +2 1860  MW3FLI DL9JM JO30 (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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