DL4GBF — 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 DL4GBF, decoded by SO8OO in southeastern Poland. 148 FT8 messages attributed to this token as transmitter, on 160m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-07-05.

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 148 FT8 messages attributed to DL4GBF as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

148

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

160m · 148

First attributed message: 2026-07-03
Last attributed message: 2026-07-05 20:04 UTC

Observed FT8 message patterns

Attributed sample: 148 messages
Active dates: 3 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -14 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 87, strong (≥ -8 dB) 52.

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 DL4GBF in decoded directed-looking exchanges:

9A4ZM · Croatia ×2 DL4BCY · Fed. Rep. of Germany ×2 DL6CGU · Fed. Rep. of Germany DL7GP · Fed. Rep. of Germany DO1WS · Fed. Rep. of Germany DO2KMB · Fed. Rep. of Germany DO2RG · Fed. Rep. of Germany G7RAU · England GM4JYB · Scotland OM2WQ · Slovak Republic OM7AQV · Slovak Republic YL3HI · Latvia

Most frequent locator attributed to DL4GBF

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 · 97 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-07-05 20:04 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	DL4GBF S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-05 20:01	160m	-14 / -	SV7BVM	- / -	3	Partial capture
07-04 21:41	160m	-14 / -10	YL3HI	+4 / -5	5	✓ Full exchange observed
07-04 21:35	160m	-13 / -24	OM2WQ	+5 / -	10	✓ Full exchange observed
07-04 21:30	160m	-12 / +7	DO2KMB	-8 / +8	6	✓ Full exchange observed
07-04 21:27	160m	-12 / -	OM2WQ	- / -	5	Partial capture
07-03 22:01	160m	-13 / +10	GM4JYB	-17 / +6	11	✓ Full exchange observed
07-03 21:58	160m	-8 / -	DL6CGU	-20 / -10	3	✓ Closing observed
07-03 21:55	160m	-12 / -	DO1WS	-11 / +10	6	✓ Closing observed
07-03 21:51	160m	-12 / -6	G7RAU	-12 / +7	4	✓ Full exchange observed
07-03 21:49	160m	-10 / -	9A4ZM	-10 / -2	4	✓ Closing observed
07-03 21:43	160m	-6 / -4	DO2RG	-16 / +1	5	✓ Full exchange observed
07-03 21:38	160m	-6 / -	DL6EBC	- / -8	3	Partial capture
07-03 21:38	160m	- / -	RN2T	-13 / -	6	Partial capture
07-03 21:36	160m	-4 / +4	DL0MI	-15 / +2	3	Partial capture
07-03 21:32	160m	-8 / -	F5NZ	- / -	2	Partial capture
07-03 21:32	160m	-5 / -	DL7GP	+2 / -	6	✓ Closing observed
07-03 21:31	160m	-5 / -	OE4KQW	- / -	2	Partial capture
07-03 21:23	160m	-7 / -	9A4ZM	0 / -	9	✓ Closing observed
07-03 21:11	160m	- / +1	DL1IP	-16 / -	4	Partial capture
07-03 21:11	160m	-9 / -2	OM7AQV	+5 / -	5	✓ Full exchange observed
07-03 21:08	160m	-3 / -10	DL4BCY	-4 / -	4	✓ Full exchange observed
07-03 21:07	160m	-1 / -	LX1LW	- / -	4	Partial capture
07-03 21:04	160m	-13 / +3	DL4BCY	-16 / -	6	✓ Full exchange observed
07-03 21:01	160m	-9 / -	DL1IP	- / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
214600  -9 1496  CQ DL4GBF JN48 (x11)
200145 -14 1339  SV7BVM DL4GBF JN48 (x3)
200430 -11 1339  CQ DL4GBF 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.

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