DL5MFF — 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 DL5MFF, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-14 and 2026-09-15.

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 26 FT8 messages attributed to DL5MFF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (88%), followed by 160 m (12%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

160m · 3 80m · 23

First attributed message: 2026-09-14
Last attributed message: 2026-09-15 22:15 UTC

Observed FT8 message patterns

Attributed sample: 26 messages
Active dates: 2 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -23 to -6 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 3.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DL5MFF in decoded directed-looking exchanges:

DF4FS · Fed. Rep. of Germany OK1DXR · Czech Republic PA3DUU · Netherlands DA0O · Fed. Rep. of Germany DF5AH · Fed. Rep. of Germany DH8BAB · Fed. Rep. of Germany DL1NEO · Fed. Rep. of Germany SN6P · Poland

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 DL5MFF

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 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 799 km (approx.)
Last such locator decoded: 2026-09-15 22:15 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	DL5MFF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 22:15	80m	-16 / -	UA6YW	- / -	2	Partial capture
09-15 22:11	80m	-10 / -12	F5RMK	-8 / -	6	Partial capture
09-15 22:09	160m	- / -	DF3JO	-20 / -	3	Partial capture
09-15 21:53	80m	-12 / -	OZ1KZX	- / -	2	Partial capture
09-15 21:51	80m	-10 / -3	DL1NEO	+3 / -10	5	✓ Full exchange observed
09-15 21:47	80m	- / -10	DC1PM	-6 / -	3	Partial capture
09-15 21:46	80m	-16 / -17	OE3OOG	-3 / -21	10	Partial capture
09-15 21:42	80m	- / -12	DA0O	-12 / -	7	✓ Closing fragment
09-15 21:39	80m	-19 / -15	DF5AH	-4 / -	5	✓ Closing observed
09-15 21:33	80m	- / -9	II8IHBC	-1 / -	2	Partial capture
09-15 21:32	80m	-13 / -	II9IABJ	- / -18	3	Partial capture
09-14 21:53	160m	-24 / +2	PA3DUU	-7 / -6	4	✓ Full exchange observed
09-14 21:50	160m	-23 / -12	DF4FS	-16 / -	3	✓ Closing observed
09-14 21:38	160m	- / -17	OK1DXR	+10 / -	3	✓ Closing fragment
09-14 19:57	80m	-18 / -8	DH8BAB	+2 / -12	4	✓ Full exchange observed
09-14 19:54	80m	- / -16	DB100FT	-5 / -	3	Partial capture
09-14 19:53	80m	- / -6	SN6P	+6 / -	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
215200  +4 1353  DL5MFF DL1NEO R-03
215215  -6 1352  DL1NEO DL5MFF RR73
215230  +0 1353  DL5MFF DL1NEO 73
215315 -11 1353  CQ DL5MFF JN58
215330 -14 1352  DL5MFF DL1AG JN48
215345  -9 1353  OZ1KZX DL5MFF JN58 (x2)
221130  -5 1555  F5RMK DL5MFF JN58 (x3)
221315 -11 1503  DL5MFF F5RMK -12
221330  -6 1114  F5RMK DL5MFF JN58
221500 -15 1114  UA6YW DL5MFF JN58
221515  -4 1503  DL5MFF F5RMK -12
221530 -18 1114  UA6YW DL5MFF JN58

160m

UTC    dB Audio  Message
213800  +6 1295  DL5MFF OK1DXR JO60 (x3)
215015 -13 1528  DL5MFF DF4FS -12 (x2)
215100 -23 1614  DF4FS DL5MFF 73
215330 -24 1613  PA3DUU DL5MFF JN58
215345  -9 2063  DL5MFF PA3DUU +02
215400 -23 1613  PA3DUU DL5MFF R-06
215415  -5 2063  DL5MFF PA3DUU RR73
220945 -20 1547  DL5MFF DF3JO JO31 (x3)

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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