DL4NFB — 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: JN59

Receiver-side FT8 activity involving DL4NFB, decoded by SO8OO in southeastern Poland. 371 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-22.

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 371 FT8 messages attributed to DL4NFB as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (60%), followed by 160 m (21%) and 80 m (10%). Most decodes (91%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -5 dB.

Overview

371

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 78 80m · 37 60m · 221 40m · 4 10m · 31

First attributed message: 2026-06-12
Last attributed message: 2026-10-22 22:45 UTC

Observed FT8 message patterns

Attributed sample: 371 messages
Active dates: 17 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -13 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 78, strong (≥ -8 dB) 271.

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 DL4NFB in decoded directed-looking exchanges:

PA3FR · Netherlands ×2 9A4AA · Croatia ×2 OM5JG · Slovak Republic ×2 DF4FS · Fed. Rep. of Germany DL4DBL · Fed. Rep. of Germany F2VX/P · France F5NZ · France HA5AO · Hungary HA7TM · Hungary IW4AOT · Italy LY2J · Lithuania ON6LEO · Belgium

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 DL4NFB

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: JN59
SO8OO receiver locator: KN09VW
Locator-centre separation: 777 km (approx.)
Last such locator decoded: 2026-09-22 20:30 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	DL4NFB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 23:58	60m	- / +8	YL2NX	-10 / -	2	✓ Closing fragment
10-22 23:29	40m	- / -8	SV8DCY	+7 / -	2	✓ Closing fragment
10-22 23:04	40m	- / -	W2CG	-11 / -	2	Partial capture
10-22 22:42	160m	-5 / -	R6DAZ	- / -14	7	Partial capture
10-22 22:34	160m	-7 / -	R1QF/P	- / -7	2	Partial capture
10-22 22:22	60m	- / +6	EG46PPA	-12 / -	6	Partial capture
10-22 22:20	160m	-2 / -	R6DAZ	- / -13	11	Partial capture
10-22 22:16	160m	-2 / -11	HA7TM	+9 / +1	4	✓ Full exchange observed
10-22 22:16	60m	- / +7	GM0VGI	-11 / -	5	✓ Closing fragment
10-22 22:15	160m	-6 / -19	LY2J	+10 / -8	4	✓ Full exchange observed
10-21 23:37	80m	-6 / -	F4CTJ	+12 / -2	3	✓ Full exchange observed
10-21 18:26	60m	- / -	DL7ACA	+6 / -	2	Partial capture
10-21 18:24	60m	-5 / -	GI8RPM	0 / -13	4	✓ Closing observed
10-21 18:22	60m	-4 / -2	DK0ND	-9 / -10	4	✓ Full exchange observed
10-21 17:33	60m	-5 / -	GI8RPM	- / -8	3	Partial capture
10-21 17:32	60m	-9 / +5	G4ZFJ	-2 / -1	4	✓ Full exchange observed
10-21 17:28	60m	-10 / -2	OZ2CDJ	-9 / -10	3	✓ Full exchange observed
10-21 17:25	60m	-11 / -	DC2MA	-17 / -18	5	✓ Closing observed
10-21 17:24	60m	-8 / -14	SP8V	-2 / -15	4	✓ Full exchange observed
10-21 17:23	60m	-18 / -11	SV8NAJ	-13 / -6	4	✓ Full exchange observed
10-21 17:22	60m	- / -	9A7BB	0 / -	5	Partial capture
10-21 17:20	60m	-10 / -9	HB9TLL	-14 / -3	6	✓ Full exchange observed
10-21 17:18	60m	-8 / -7	G4WGE	-12 / -11	4	✓ Full exchange observed
10-21 17:17	60m	-7 / -7	E74MG	-9 / -11	5	✓ Full exchange observed
10-21 17:10	60m	-9 / -	F6BQX	- / +4	11	Partial capture
10-21 17:08	60m	-10 / -10	9A4AA	+6 / +3	6	✓ Full exchange observed
10-21 05:31	60m	-9 / -7	NP3RK	-15 / -10	4	✓ Full exchange observed
10-21 05:26	60m	-9 / -4	EA8AE	-18 / -	3	✓ Closing observed
10-20 19:48	60m	-13 / -3	SQ9BC	-8 / +2	3	✓ Full exchange observed
10-20 19:39	60m	-6 / +3	S58X	+4 / -2	10	✓ Full exchange observed
10-20 19:35	60m	-3 / -5	SP5JMA	+2 / -11	6	✓ Full exchange observed
10-20 19:34	60m	-9 / +8	ON7VZ	+7 / -9	6	✓ Full exchange observed
10-20 19:33	60m	- / +2	DF4WQ	-9 / -	3	✓ Closing fragment
10-20 19:33	60m	-8 / -9	IU4UFT	-11 / -2	3	✓ Full exchange observed
10-20 19:09	60m	-8 / +1	F2JD	-10 / -9	4	✓ Full exchange observed
10-20 19:05	60m	-7 / +6	HA7UL	-8 / -9	5	✓ Full exchange observed
10-20 19:02	60m	-10 / -	SV1SUO	- / -13	4	Partial capture
10-20 19:00	60m	-8 / -	IK2SND	-6 / -15	5	✓ Closing observed
10-20 18:58	60m	-7 / -	9K2GR	- / -20	3	Partial capture
10-20 18:55	60m	-1 / -	OV5SP	- / -11	4	Partial capture
10-20 18:49	60m	-9 / +8	SP2EWQ	+2 / +2	5	✓ Full exchange observed
10-20 18:48	60m	-4 / -1	IK4CBO	-5 / +3	6	✓ Full exchange observed
10-20 18:46	60m	-6 / +4	HA5UK	+7 / +7	4	✓ Full exchange observed
10-20 18:44	60m	-2 / -4	HA8RC	-8 / -13	4	✓ Full exchange observed
10-20 18:42	40m	-6 / -8	LZ2II	-4 / -3	3	✓ Full exchange observed
10-12 22:00	60m	-14 / -2	M1EYP	-13 / -6	2	Partial capture
10-12 21:56	60m	-19 / -	EA8CZL	- / -13	3	✓ Closing fragment
10-12 21:47	60m	-13 / -	VE1YX	- / -10	4	Partial capture
10-12 21:10	40m	- / -17	EA5EE	-8 / -	2	Partial capture
10-11 22:31	80m	+14 / -	HB9RTR	- / -3	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
222445  -8  748  VP2MAA DL4NFB -17
211030  -5  831  DL4NFB EA5EE R-17 (x3)
213630 -17  863  DL4NFB 7Z1BQ 73
184030  -9 1269  EA5KT DL4NFB RR73
184200  -6 1269  LZ2II DL4NFB -03
184215  -4 1997  DL4NFB LZ2II R-08
184230  -5 1269  LZ2II DL4NFB RR73
230445 -11  464  DL4NFB W2CG FM14 (x2)
232930  +9 2343  DL4NFB SV8DCY R-08 (x2)
000400  -6 2031  DL4NFB SV3AUW R-06
000945  -7 2339  DL4NFB UN0GY 73

60m

UTC    dB Audio  Message
182630  +6 2207  DL4NFB DL7ACA JO40
221615  -7  921  DL4NFB GM0VGI R+07 (x5)
222200 -17 2054  DL4NFB EG46PPA R+06 (x6)
230230  -6 1661  DL4NFB LZ936BA R+19
235845 -10  693  DL4NFB YL2NX R+08 (x2)

160m

UTC    dB Audio  Message
222400  -4  707  R6DAZ DL4NFB -13 (x4)
223400  -1  708  SX37VER DL4NFB -07
223430  -6 1707  R1QF/P DL4NFB -07 (x2)
223545  +8 1560  DL4NFB SP/DL5DBO R-17
224230  -2  708  R6DAZ DL4NFB -14 (x7)

80m

UTC    dB Audio  Message
222745  -1 1971  DL4NFB DJ3ZF JN49
222800  +4  718  9A4AA DL4NFB -14
222830  +5  718  DJ3ZF DL4NFB -20
222845  -1 1971  DL4NFB DJ3ZF R-11
222900  +8  718  9A4AA DL4NFB RR73
222915  +8 1971  DL4NFB DJ3ZF R-11 (x2)
223000 +13  718  DJ3ZF DL4NFB RR73
223015  +7 1971  DL4NFB DJ3ZF 73
223100 +16  718  HB9RTR DL4NFB -03 (x2)
233730  -6  774  F4CTJ DL4NFB -02
233745 +12 1039  DL4NFB F4CTJ R+18
233800  -6  773  F4CTJ DL4NFB RR73
233830  -5  774  ON5WR DL4NFB -10

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

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