DD3KF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO30

Receiver-side FT8 activity involving DD3KF, decoded by SO8OO in southeastern Poland. 1,001 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-25 and 2026-09-20.

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 1,001 FT8 messages attributed to DD3KF as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 160 m (46%) and 40 m (3%). Most decodes (100%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -5 dB.

Overview

1,001

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 456 80m · 498 60m · 16 40m · 31

First attributed message: 2026-06-25
Last attributed message: 2026-09-20 22:19 UTC

Observed FT8 message patterns

Attributed sample: 1,001 messages
Active dates: 13 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -17 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 136, moderate (-15 to -9 dB) 253, strong (≥ -8 dB) 612.

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 DD3KF in decoded directed-looking exchanges:

9A5E · Croatia ×2 EX7CQ · Kyrgyzstan ×2 DO7ES · Fed. Rep. of Germany ×2 SC9WWA · Sweden ×2 4O7CC · Montenegro 9A2AJ · Croatia 9A5AFP · Croatia 9A5RS · Croatia C31CT · Andorra DD2ML · Fed. Rep. of Germany DD6UAT · Fed. Rep. of Germany DG0OFT · 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 DD3KF

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 · 684 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-09-20 22:19 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	DD3KF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 22:16	80m	+8 / -	N1IWP	- / -	2	Partial capture
09-20 22:14	80m	+10 / -	RZ9O	- / -	3	Partial capture
09-20 22:13	80m	+6 / -	BI8FRF	- / -	2	Partial capture
09-20 22:11	80m	- / -14	VO1HP	-8 / -	2	✓ Closing fragment
09-20 22:07	80m	+2 / -1	T77RN	-2 / -10	4	✓ Full exchange observed
09-20 21:32	80m	0 / -	OH2BV	- / -	2	Partial capture
09-20 21:30	80m	-6 / -	SM7TZK	- / +10	2	Partial capture
09-20 21:29	80m	-1 / -14	SV5ADM	-8 / -10	4	✓ Full exchange observed
09-20 20:59	60m	-11 / -	DL1MST	-5 / +8	3	✓ Closing observed
09-20 20:55	60m	-13 / 0	DK7UY	-2 / -	4	✓ Full exchange observed
09-20 20:54	60m	-14 / -	LY4PR	- / -	2	Partial capture
09-20 20:53	60m	-10 / -	HA3PG	- / -1	2	✓ Closing fragment
09-20 20:50	60m	-10 / -9	ER1CW	-19 / -7	6	✓ Full exchange observed
09-20 20:47	60m	-8 / -	UN7EG	- / -15	4	✓ Closing fragment
09-20 20:38	160m	-5 / -	DM6MA	- / -13	4	✓ Closing fragment
09-20 20:36	160m	-1 / -	DL0ABT	- / -1	3	✓ Closing fragment
09-20 20:35	160m	-9 / -	DK0KG	-15 / -9	4	✓ Closing observed
09-20 20:33	160m	-11 / -9	9A5E	-9 / -	4	✓ Closing observed
09-20 20:32	160m	-14 / -	SQ2BXI	- / -21	2	✓ Closing fragment
09-20 20:30	160m	-8 / -	EI8IQ	- / -	2	✓ Closing fragment
09-20 20:29	160m	-5 / -	4X1UF	- / -	3	Partial capture
09-20 20:27	160m	-4 / -	DL3HBT	- / -	2	Partial capture
09-20 20:26	160m	-4 / -	OE4KQW	- / -	2	Partial capture
09-20 20:25	160m	-7 / +10	OK2USM	-7 / -2	4	✓ Full exchange observed
09-20 20:24	160m	-10 / -2	PA3DUU	-14 / 0	5	✓ Full exchange observed
09-20 20:22	160m	-14 / -	4X1UF	- / -	2	Partial capture
09-20 20:19	160m	- / -7	DL4ME	-4 / -	2	✓ Closing fragment
09-19 23:35	160m	-3 / -	DG2LBH	- / -17	4	Partial capture
09-19 23:32	160m	-11 / +2	DO5HB	-10 / +1	5	✓ Full exchange observed
09-19 23:31	160m	-15 / -2	HA7TM	+14 / -	5	✓ Full exchange observed
09-19 23:29	160m	- / -19	SV1FKZ	-14 / -	3	✓ Closing fragment
09-19 23:27	160m	-7 / -	LA1ZN	- / -	2	✓ Closing fragment
09-19 23:25	160m	-6 / 0	F1PBZ	0 / -	5	✓ Full exchange observed
09-19 23:24	160m	-6 / -12	EW6FL	+14 / -2	5	✓ Full exchange observed
09-19 23:20	160m	0 / -23	UA6YW	-4 / -6	6	✓ Full exchange observed
09-19 23:19	160m	-2 / -2	F4UJU	-7 / -3	5	✓ Full exchange observed
09-19 23:17	160m	0 / -18	OE3OOG	+8 / -5	5	✓ Full exchange observed
09-19 23:15	160m	-2 / -	M0IYK	-17 / -5	3	✓ Closing observed
09-19 23:12	160m	-8 / +9	DL6MRM	+6 / +9	5	✓ Full exchange observed
09-19 23:09	160m	-8 / -7	DO1WS	-6 / +1	5	✓ Full exchange observed
09-19 23:06	160m	-11 / -23	4O7CC	+8 / -1	5	✓ Full exchange observed
09-19 21:43	160m	-18 / -	7X2TT	- / -	8	Partial capture
09-19 21:18	160m	-12 / -11	7X2TT	-1 / -3	19	Partial capture
09-19 21:16	160m	-8 / -4	DD2ML	-4 / -3	5	✓ Full exchange observed
09-19 21:10	160m	-15 / -	EA8BS	- / -15	6	✓ Closing fragment
09-19 21:05	160m	-14 / -	7X2TT	- / -	7	Partial capture
09-19 21:01	160m	-4 / -4	EI5GSB	-8 / +9	5	✓ Full exchange observed
09-19 20:58	160m	-5 / -	SV9ANK	- / -	4	Partial capture
09-19 20:50	160m	-11 / -	ER1BSV	- / -	2	Partial capture
09-19 20:50	160m	-11 / -	C31CT	- / +5	6	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
220745  -1  534  T77RN DD3KF R-10
220800  -1  441  DD3KF T77RN RR73
220815  +5  534  T77RN DD3KF 73
221030  +1 1473  C31KC DD3KF 73
221115  -8 2881  DD3KF VO1HP -14 (x2)
221330  +5 2644  BI8FRF DD3KF JO30 (x2)
221445 +10 2644  RZ9O DD3KF JO30 (x3)
221615  +9 2644  N1IWP DD3KF JO30 (x2)
221815  +6 2644  RK0SC DD3KF JO30
221945  -1 2644  RA0SCA DD3KF JO30

60m

UTC    dB Audio  Message
205200 -18 1581  DD3KF ER1CW -09
205215 -14 1514  ER1CW DD3KF R-07
205230 -20 1581  DD3KF ER1CW RR73
205245 -13 1515  ER1CW DD3KF 73
205315 -10 1514  HA3PG DD3KF R-01 (x2)
205415 -15 1514  LY4PR DD3KF JO30 (x2)
205530  +0 2025  DD3KF DK7UY +00
205545 -12 1515  DK7UY DD3KF R+29
205600  -4 2026  DD3KF DK7UY RR73
205615 -14 1514  DK7UY DD3KF 73
205915 -11 1515  DL1MST DD3KF R+08
205930  -5  639  DD3KF DL1MST RR73
205945 -11 1514  DL1MST DD3KF 73

160m

UTC    dB Audio  Message
203300 -12  296  9A5E DD3KF JO30
203315  -9 2128  DD3KF 9A5E -09 (x2)
203400 -10  295  9A5E DD3KF 73
203500  -9  295  DK0KG DD3KF JO30 (x2)
203545 -15 1246  DD3KF DK0KG RR73
203600  -6  295  DK0KG DD3KF 73
203630  -6  295  DL0ABT DD3KF JO30 (x3)
203800  -3  295  DM6MA DD3KF JO30 (x4)

40m

UTC    dB Audio  Message
223245 -19 1993  D2UY DD3KF JO30 (x5)
072330  +0 2734  DD3KF IQ4JO JN63
072530 -20 1758  DD3KF DM2GG R-08 (x2)
072630 -19 1718  DD3KF DL0MLU JO51 (x3)
163645 -15 1132  DD3KF DL2RBJ -08 (x2)
222800  -6 2282  D2ACE DD3KF 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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee