DL0FF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN48

Receiver-side FT8 activity involving DL0FF, decoded by SO8OO in southeastern Poland. 45 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-22 and 2026-08-19.

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 45 FT8 messages attributed to DL0FF 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 (47%), followed by 10 m (31%) and 80 m (22%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (69%); the estimated median was -20 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-20 dB

Estimated median S/N

Bands

80m · 10 40m · 21 10m · 14

First attributed message: 2026-07-22
Last attributed message: 2026-08-19 17:21 UTC

Observed FT8 message patterns

Attributed sample: 45 messages
Active dates: 4 UTC dates
Estimated median S/N: -20 dB
Estimated 10th-90th percentile: -24 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 4.

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 DL0FF in decoded directed-looking exchanges:

D44AG · Cape Verde DH3HB · Fed. Rep. of Germany DL3BH · Fed. Rep. of Germany 9A4ZM · Croatia DF5DY · Fed. Rep. of Germany DK2SW · Fed. Rep. of Germany DK4RH · Fed. Rep. of Germany DL1EBW · Fed. Rep. of Germany DL1EDR · Fed. Rep. of Germany DL6CHF · Fed. Rep. of Germany DL6UM · Fed. Rep. of Germany DL7UMG · 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 DL0FF

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: JN48 · 19 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-08-19 17:21 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	DL0FF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-16 09:52	40m	- / +8	DL7UMG	-6 / -	2	✓ Closing fragment
08-15 19:13	80m	-2 / -	DO1ID	+4 / -7	3	✓ Closing observed
08-15 19:06	40m	- / +5	OK1FED	-3 / -	7	✓ Closing fragment
08-15 19:06	40m	- / -17	RN6MA	-14 / -	2	Partial capture
08-15 19:01	40m	-23 / -	F6BHK	-8 / -12	3	Partial capture
08-15 18:59	40m	- / -18	RX3ASQ	-12 / -	2	✓ Closing fragment
08-15 18:58	40m	-24 / -	PD0RCQ	- / -9	2	✓ Closing fragment
08-15 18:56	40m	- / -8	PE1MHY	-12 / -	2	✓ Closing fragment
08-15 18:54	40m	-18 / -11	DK2SW	-7 / -3	5	✓ Full exchange observed
08-15 18:54	40m	- / -	PC2J	-19 / -	2	Partial capture
08-15 18:51	40m	- / -15	E70SZ	-11 / -	3	✓ Closing fragment
08-15 18:49	40m	-24 / -8	OE5PEN	-20 / -	4	✓ Closing observed
08-15 18:46	40m	-23 / +3	DL1EDR	-14 / -9	6	✓ Full exchange observed
08-15 18:46	40m	- / -6	DL6UM	-8 / -	7	✓ Closing fragment
08-15 18:44	40m	- / +2	DL1EBW	-12 / -	3	✓ Closing fragment
08-15 18:42	40m	- / -14	9A4ZM	-17 / -	3	✓ Closing fragment
08-15 18:36	40m	-21 / -11	R2ASV	-17 / -9	6	✓ Full exchange observed
08-11 17:55	80m	-17 / -10	DO5PY	-9 / -	4	✓ Closing observed
08-11 17:50	80m	- / -5	DF1BN	-4 / -	6	✓ Closing fragment
08-11 17:47	80m	-13 / -	PC5D	- / -	2	✓ Closing fragment
08-11 17:46	80m	-8 / -	DD0AM	-9 / +2	3	✓ Closing observed
08-11 17:39	40m	- / -4	DF5DY	-10 / -	3	✓ Closing fragment
08-11 17:36	40m	- / -6	DL2YBG	-20 / -	3	Partial capture
08-11 17:29	40m	- / +3	OE3DXA	-5 / -	2	✓ Closing fragment
08-11 17:25	40m	- / -13	DL1NEO	-15 / -	3	Partial capture
07-22 18:23	10m	-8 / -	DH3HB	- / -14	3	✓ Closing fragment
07-22 18:19	10m	-15 / -	PU2PGQ	- / -11	3	Partial capture
07-22 18:18	10m	-23 / -	D44AG	- / -4	2	✓ Closing fragment
07-06 17:01	40m	- / -	DL6CHF	-18 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
175030  -9 1256  DL0FF DF1BN JN68 (x5)
175500  -9 2347  DL0FF DO5PY JN49 (x3)
175615 -17 1650  DO5PY DL0FF RR73
191330  -4  382  DO1ID DL0FF R-07
191345  +4  381  DL0FF DO1ID RR73
191400  -1  382  DO1ID DL0FF 73
172015 -22 1306  CQ DL0FF JN48 (x3)

40m

UTC    dB Audio  Message
190600 -11 1849  DL0FF RN6MA -17
190600 -10 1207  DL0FF OK1FED JN88
190630 -16 1849  DL0FF RN6MA -17
190630  +0  776  DL0FF OK1FED JN88 (x3)
190745 -21 1850  CQ DL0FF JN48
190800  -7  776  DL0FF OK1FED JN88 (x2)
190900 -12 1849  DL0FF PC2J JO22
190900  +1  776  DL0FF OK1FED R+01
190930 -19 1845  DL0FF DH1JAD R-03
095100 -19 2274  DL0FF DL1CC R-04
095230  -5  573  DL0FF DL7UMG R+08 (x2)

10m

UTC    dB Audio  Message
181045 -14 1467  LU9GDN DL0FF JN48
181345 -15 1467  DL3BH DL0FF RR73
181415 -12 1467  CQ DL0FF JN48 (x3)
181815 -24 1468  D44AG DL0FF -04 (x2)
181945 -16 1467  PU2PGQ DL0FF R-11 (x3)
182300  -6 2439  DH3HB DL0FF JN48 (x3)
182815 -19 1081  PY5QR DL0FF JN48

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