DK4BP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN58

Receiver-side FT8 activity involving DK4BP, decoded by SO8OO in southeastern Poland. 3,668 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 78 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-17.

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 3,668 FT8 messages attributed to DK4BP as the transmitting token by decoded message structure across 78 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (60%), followed by 40 m (29%) and 80 m (5%). The busiest six-hour window was 16:00-22:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

3,668

Messages attributed

UTC dates decoded

613

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 200 60m · 132 40m · 1,077 20m · 2,200 10m · 59

First attributed message: 2026-06-06
Last attributed message: 2026-09-17 21:02 UTC

Observed FT8 message patterns

Attributed sample: 3,668 messages
Active dates: 78 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -23 to -6.3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,986, moderate (-15 to -9 dB) 1,079, strong (≥ -8 dB) 603.

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 DK4BP in decoded directed-looking exchanges:

IK4LZH · Italy ×5 ON4MAP · Belgium ×3 BA5DX · China ×2 DA0LH · Fed. Rep. of Germany ×2 EG1UME · Spain ×2 F1PBZ · France ×2 HA3GX · Hungary ×2 OE5FIL · Austria ×2 OH1TD · Finland ×2 PD0LH · Netherlands ×2 PD1ACS · Netherlands ×2 PI4DX · Netherlands ×2

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 DK4BP

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: JN58 · 2,661 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 799 km (approx.)
Last such locator decoded: 2026-09-17 21:02 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	DK4BP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 21:02	80m	-24 / -9	DH3UN	0 / -	3	✓ Closing observed
09-15 21:34	80m	- / +2	HB3XGP	-4 / -	3	✓ Closing fragment
09-15 21:23	80m	- / -	ON4MAP	-17 / -	4	Partial capture
09-15 21:20	80m	- / -14	DO9ST	-7 / -	2	✓ Closing fragment
09-15 21:17	80m	- / -17	PA5HR	-8 / -	2	✓ Closing fragment
09-15 21:07	80m	- / -17	3Z100PKP	+10 / -	2	Partial capture
09-15 21:04	80m	-19 / -	RD0L/3	- / -	4	Partial capture
09-15 21:00	80m	- / -17	PA5HR	-6 / -	2	Partial capture
09-15 20:57	80m	- / -4	DL6MRM	+6 / -	3	✓ Closing fragment
09-15 20:33	80m	- / -	SP9AU	+12 / -	2	Partial capture
09-15 20:05	40m	-8 / -	PE1PBQ	- / -	12	Partial capture
09-04 19:19	40m	-3 / -6	IK2VFR/P	-8 / +2	4	✓ Full exchange observed
09-04 19:15	40m	-7 / -	G8OO	-2 / -3	9	Partial capture
09-04 19:14	40m	-15 / -10	G6LSO	-10 / -	2	✓ Closing observed
09-02 20:39	40m	-5 / -1	ON4CJU	-3 / +1	4	✓ Full exchange observed
09-01 19:30	40m	-3 / -	R3YCJ/P	- / -	2	Partial capture
09-01 19:25	40m	- / -10	SN100PKP	+6 / -	2	Partial capture
09-01 18:06	40m	-6 / -	DL1IP	- / -10	2	✓ Closing fragment
08-31 19:08	20m	-10 / -	OH7MYK	- / -	2	Partial capture
08-31 18:31	20m	- / -6	MM9ODX	-4 / -	2	✓ Closing fragment
08-31 12:35	20m	-8 / -	2E1HAT	- / -	8	Partial capture
08-31 12:27	20m	-11 / -	2E1HAT	- / -	3	Partial capture
08-31 12:24	20m	-2 / -	R4DS	- / -13	2	Partial capture
08-31 12:18	20m	-6 / -	<...>	- / -3	3	Partial capture
08-31 12:13	20m	-10 / -	ER1CW	- / -15	5	Partial capture
08-31 11:59	20m	-8 / -17	M0SLI	+5 / -15	3	✓ Full exchange observed
08-31 11:31	20m	-8 / -	PA1GUZ	0 / -10	3	✓ Closing observed
08-31 09:56	20m	-12 / -8	OH3CYT	-14 / -13	4	✓ Full exchange observed
08-31 09:34	20m	-12 / -	EA1FMJ	- / -	4	✓ Closing fragment
08-31 08:51	20m	- / -8	M9LDX	-6 / -	2	✓ Closing fragment
08-31 08:34	20m	-19 / -14	PW8BR	-8 / -	4	Partial capture
08-30 18:44	40m	-14 / -	ON4IQ	- / -	2	Partial capture
08-30 18:43	40m	-12 / -	SP7EL	- / -	2	Partial capture
08-29 19:09	20m	- / -15	EA1FAW	-12 / -	2	✓ Closing fragment
08-29 18:53	20m	- / -9	AO5FSB	+8 / -	2	✓ Closing fragment
08-29 17:47	20m	-9 / -	EA7CCQ	- / -13	2	Partial capture
08-28 18:52	20m	- / -12	ON5GQ	+24 / -	2	✓ Closing fragment
08-28 18:47	20m	- / -2	SV1QEW	+13 / -	2	✓ Closing fragment
08-28 18:42	20m	- / -3	TA3GO	+13 / -	3	✓ Closing fragment
08-28 11:26	20m	- / -	TA3F	-10 / -	12	Partial capture
08-28 11:15	20m	-18 / -	TA3NK	-10 / -10	12	Partial capture
08-28 10:52	20m	- / -11	EA2CD	-7 / -	2	Partial capture
08-28 10:51	20m	-13 / -3	OZ1DYI	-6 / -	3	✓ Closing observed
08-28 10:49	20m	-12 / -	EA2CD	- / -	2	Partial capture
08-28 10:45	20m	-11 / -	IK2CMI	- / -7	3	✓ Closing fragment
08-28 10:43	20m	-11 / -	DB8OCT	- / -24	3	✓ Closing fragment
08-28 10:36	20m	-5 / -6	IZ0PTY	-7 / -	7	✓ Closing observed
08-28 10:33	20m	-4 / -	F8STC	- / -22	3	✓ Closing fragment
08-28 10:31	20m	-8 / -	IZ5RKH	- / +4	4	Partial capture
08-28 10:28	20m	- / -	IZ5RKH	-6 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
212300 -16  304  DK4BP ON4MAP JO20 (x3)
212415  -8 1796  CQ DK4BP JN58
212430 -19  303  DK4BP ON4MAP JO20
212615 -15 1796  CQ DK4BP JN58 (x4)
213400  -5 2236  DK4BP HB3XGP JN46 (x3)
210245 -24 1666  DH3UN DK4BP JN58
210300  +1  965  DK4BP DH3UN -09 (x2)

40m

UTC    dB Audio  Message
192100  -9 1797  G8OO DK4BP -03
200415  -8 1806  CQ DK4BP JN58 (x2)
200515 -15 1806  PE1PBQ DK4BP JN58 (x12)

20m

UTC    dB Audio  Message
123630  -7 1934  2E1HAT DK4BP JN58 (x5)
124030  -9 1935  F1SZC DK4BP JN58
174430  -1 1864  DK4BP R6ZCE RR73
181645 -11 2307  DK4BP BG5GEB RR73
181730 -24 1837  CQ DK4BP JN58                         a1
182915 -10 2370  DK4BP 5Z4VJ KI88
183145  -8 2994  DK4BP MM9ODX -06 (x2)
190830  -8 2050  OH7MYK DK4BP JN58 (x2)
191800 -10 2048  CQ DK4BP JN58

60m

UTC    dB Audio  Message
001400  +5 2030  DK4BP OR7K -03
001415  -6 1815  OR7K DK4BP R-06
001430  -5 2030  DK4BP OR7K RR73
001445 -12 1814  OR7K DK4BP 73
001545 -12 1814  F4ENK DK4BP JN58 (x2)
001630  -8 1521  DK4BP F4ENK RR73
001645  -9 1814  F4ENK DK4BP 73
001745  -5 1814  VE2GHU DK4BP JN58 (x4)
001945 -11 1813  CQ DK4BP JN58 (x2)
005930  -2 1815  KF9UG DK4BP JN58

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.

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