DF1DJ — 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 DF1DJ, decoded by SO8OO in southeastern Poland. 107 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-10-15.

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 107 FT8 messages attributed to DF1DJ as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 20 m (12%). Several six-hour UTC windows tied for the largest share (50%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (64%); the estimated median was -17 dB.

Overview

107

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

40m · 94 20m · 13

First attributed message: 2026-07-19
Last attributed message: 2026-10-15 14:43 UTC

Observed FT8 message patterns

Attributed sample: 107 messages
Active dates: 23 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -24 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 68, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 2.

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 DF1DJ in decoded directed-looking exchanges:

YO9PH · Romania ×2 DJ2MS · Fed. Rep. of Germany ×2 Z34K · North Macedonia EA5RJ · Spain IQ4JO · Italy LZ1ZF · Bulgaria OE8RPK · Austria RN6MA · European Russia SQ9SF · Poland 2E0UMK · England 9A7BB · Croatia DB2VS · 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 DF1DJ

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 · 73 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-10-15 14:39 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	DF1DJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 08:58	40m	- / -3	GJ0KYZ	-11 / -	3	Partial capture
10-22 08:47	40m	- / -19	G0HSP	-16 / -	2	Partial capture
10-21 14:40	40m	- / -7	OK2CNI	+6 / -	3	✓ Closing fragment
10-19 13:00	40m	- / -18	OZ9WRH	-20 / -	2	✓ Closing fragment
10-15 14:39	40m	-24 / -	G0BAZ	- / -	2	Partial capture
10-14 00:42	40m	- / -	RA4FUT	-22 / -	2	Partial capture
10-13 15:03	40m	- / -8	GJ0KYZ	-14 / -	2	✓ Closing fragment
10-13 14:52	40m	-24 / -	G3EFG	- / -	2	✓ Closing fragment
10-10 03:50	40m	- / -8	UA3GDJ	-4 / -	2	✓ Closing fragment
10-09 08:17	40m	- / -22	YO9PH	-2 / -	2	✓ Closing fragment
10-08 15:21	40m	- / -15	DL3RDO	-4 / -	2	✓ Closing fragment
10-08 14:49	40m	-9 / -24	SA3LEN	-7 / 0	2	Partial capture
10-08 14:21	40m	- / -5	SP5GEO	0 / -	2	✓ Closing fragment
10-07 15:48	40m	- / -16	DL7PIA	-5 / -	4	✓ Closing fragment
10-07 15:46	40m	-14 / -	DM5ME	- / -6	3	Partial capture
10-07 15:41	40m	- / -	DB6LL/P	-8 / -	2	✓ Closing fragment
10-07 11:39	40m	- / -11	DH1KJ	-1 / -	2	✓ Closing fragment
10-07 02:51	40m	-16 / -	LZ1DPP	- / -12	3	Partial capture
10-07 02:47	40m	-16 / -	RU4I	- / -	2	Partial capture
10-06 16:47	40m	- / -	UA4FKT	-4 / -	4	Partial capture
10-06 16:44	40m	- / -	S51PV	-7 / -	5	Partial capture
10-06 14:05	40m	- / -13	9A7BB	+4 / -	4	✓ Closing fragment
10-05 09:03	40m	- / -11	SQ9SET	0 / -	6	Partial capture
10-05 08:56	40m	- / -4	DL7ACA	-2 / -	5	✓ Closing fragment
10-05 08:48	40m	- / -21	IV3XPP	-16 / -	2	✓ Closing fragment
10-05 08:46	40m	- / +2	OK2OM	-3 / -	2	✓ Closing fragment
10-05 08:17	40m	- / -	DL4TL	-11 / -	3	✓ Closing fragment
10-05 08:06	40m	- / -16	OK1HEH	-4 / -	2	✓ Closing fragment
10-04 21:08	40m	- / -11	TA3NK	-8 / -	2	Partial capture
10-04 07:20	40m	- / -	IV3XHF	-1 / -	4	✓ Closing fragment
10-03 14:09	40m	- / -12	HB9ELE	+3 / -	2	✓ Closing fragment
10-03 07:23	40m	- / -	GJ0KYZ	-19 / -	2	Partial capture
10-03 07:20	40m	- / -5	HF1Z	-14 / -	3	✓ Closing fragment
10-03 07:13	40m	- / -	SQ3MQD	-10 / -	2	✓ Closing fragment
10-01 03:31	40m	-11 / -	EB3DIY	- / -	2	Partial capture
09-28 09:33	40m	- / -4	DG3YEV	-2 / -	2	✓ Closing fragment
09-26 13:34	40m	- / -14	HB9ELE	-3 / -	2	Partial capture
09-21 06:35	40m	-11 / -	YO3JW	-1 / -	3	✓ Closing observed
09-21 06:34	40m	-4 / -14	S55A	+2 / -	4	✓ Closing observed
09-21 06:28	40m	- / -	S55A	+4 / -	3	Partial capture
09-21 06:21	40m	-24 / -18	F6FTB	-9 / +6	5	✓ Full exchange observed
09-19 06:48	40m	-14 / -	EA1DR	- / -13	2	✓ Closing fragment
09-18 07:18	40m	- / -17	HA1ZW	+1 / -	2	✓ Closing fragment
09-18 07:06	40m	- / +2	DH8BQA	+12 / -	2	✓ Closing fragment
09-18 07:01	40m	- / -13	M7GFJ	-20 / -	2	✓ Closing fragment
09-18 06:40	40m	- / -8	DL9KM	0 / -	3	✓ Closing fragment
09-15 23:16	40m	- / -	UA4FKT	+6 / -	4	Partial capture
09-15 23:11	40m	- / -11	IU8RHZ	-11 / -	4	✓ Closing fragment
09-14 07:40	40m	- / -5	DL5ST	-1 / -	2	✓ Closing fragment
09-14 07:35	40m	- / -14	SP6AXW	-11 / -	5	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
083230 -21 1445  DF1DJ DF3MT RR73
143900 -24 1630  G0BAZ DF1DJ JO30 (x2)
144315 -23 1378  F6DJW DF1DJ R+03
130000 -22 1409  DF1DJ OZ9WRH -18 (x2)
144030  +1 2554  DF1DJ OK2CNI JN79 (x3)
084545 -19 1758  DF1DJ G3AKA RR73
084745 -15 1795  DF1DJ G0HSP -19 (x2)
085800 -10  931  DF1DJ GJ0KYZ -03 (x3)

20m

UTC    dB Audio  Message
034830  -3  542  DF1DJ RM3TO -03
183030 -24 1443  YO9FKI DF1DJ JO30
205800 -22 1840  TA4SM DF1DJ JO30
205930 -19 1821  SQ9SF DF1DJ JO30 (x2)
083115 -16  782  Z62NS DF1DJ JO30
110915 -11 1507  CQ DF1DJ JO30
111130 -12 1915  DF1DJ OE8RPK JN76 (x3)
111315 -13 1508  OE8RPK DF1DJ -17
111330 -16 1914  DF1DJ OE8RPK R-20 (x2)
115215 -16 1630  SQ6RT DF1DJ JO30 (x2)

10m

UTC    dB Audio  Message
093800  +7  557  DF1DJ Z34K -16 (x2)
094400 -18 1125  DF1DJ IU4PPL JN54 (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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