DJ1FK — 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: JO43

Receiver-side FT8 activity involving DJ1FK, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-06 and 2026-11-01.

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 29 FT8 messages attributed to DJ1FK as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (90%), followed by 80 m (10%). Most decodes (59%) fell within the six-hour window 13:00-19:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was -6 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 3 40m · 26

First attributed message: 2026-09-06
Last attributed message: 2026-11-01 13:06 UTC

Observed FT8 message patterns

Attributed sample: 29 messages
Active dates: 4 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -13 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 23.

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 DJ1FK in decoded directed-looking exchanges:

HB9ELE · Switzerland OV6ZM · Denmark S52UF · Slovenia SM1FMT · Sweden IZ3GNG · Italy

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 DJ1FK

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: JO43 · 22 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 964 km (approx.)
Last such locator decoded: 2026-11-01 13:06 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	DJ1FK S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 13:10	40m	- / -10	S52UF	-2 / -	2	✓ Closing fragment
11-01 13:06	40m	-14 / -	DG9VH	- / -	2	Partial capture
10-26 05:48	80m	-8 / 0	IZ3GNG	+1 / -	4	✓ Full exchange observed
10-26 05:37	80m	-9 / -	WD4OBP	- / -	2	Partial capture
10-07 18:14	40m	- / +3	HB9ELE	+12 / -	2	✓ Closing fragment
10-07 18:12	40m	-10 / -	IT9GJK/P	- / -	3	Partial capture
10-07 18:06	40m	-6 / -	IT9GJK/P	- / -	4	Partial capture
10-07 05:38	40m	-5 / -	OH3CYT	- / -	2	Partial capture
10-07 05:32	40m	-6 / -	IQ9SZ	- / -	6	Partial capture
09-06 18:51	40m	-3 / -	DK8HC	- / -11	5	Partial capture
09-06 18:49	40m	-4 / -13	OV6ZM	+8 / -	4	✓ Full exchange observed
09-06 18:47	40m	- / +6	SM1FMT	0 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
053845  -7 1486  OH3CYT DJ1FK JO43
180330  -1 1485  IT9GJK/P DJ1FK JO43 (x8)
181400 +15  742  DJ1FK HB9ELE +03 (x2)
130600 -13 1487  DG9VH DJ1FK JO43 (x2)
131030  -2 1560  DJ1FK S52UF -10 (x2)

80m

UTC    dB Audio  Message
053615  +7 1900  DJ1FK IZ3GNG JN55
053700  -8 1450  WD4OBP DJ1FK JO43 (x2)
054800  -8 1450  IZ3GNG DJ1FK +24
054845  +0 1752  DJ1FK IZ3GNG R+00 (x3)

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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