DF7AX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany

Receiver-side FT8 activity involving DF7AX, decoded by SO8OO in southeastern Poland. 77 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-12 and 2026-08-09.

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 77 FT8 messages attributed to DF7AX as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). 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 strong S/N range (73%); the estimated median was -6 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

20m · 77

First attributed message: 2026-07-12
Last attributed message: 2026-08-09 13:28 UTC

Observed FT8 message patterns

Attributed sample: 77 messages
Active dates: 4 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -13 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 56.

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 DF7AX in decoded directed-looking exchanges:

BA3NZ · China BI4KYT · China CR7BUJ · Portugal DG1LJP · Fed. Rep. of Germany DG5BEA · Fed. Rep. of Germany DG8MHB/P · Fed. Rep. of Germany DK0DMB · Fed. Rep. of Germany DK4BP · Fed. Rep. of Germany DK4FH · Fed. Rep. of Germany DK5UR · Fed. Rep. of Germany DL1DEU · Fed. Rep. of Germany DL9KM · 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.

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	DF7AX S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-09 13:51	40m	- / 0	SQ9M	-12 / -	2	✓ Closing fragment
08-09 13:27	20m	-12 / -	BA3NZ	- / -16	2	✓ Closing fragment
08-09 13:26	20m	-12 / -	2E1HAT	- / -4	2	Partial capture
07-19 12:32	20m	-2 / -16	DM2HEY	-6 / -11	4	✓ Full exchange observed
07-19 12:31	20m	-8 / -	SV4TTE	- / -17	2	✓ Closing fragment
07-19 12:26	20m	-8 / -6	DK5UR	-15 / -13	4	✓ Full exchange observed
07-19 12:25	20m	-3 / -	DL1DEU	-2 / -	3	✓ Closing observed
07-19 12:24	20m	-8 / -	DG8MHB/P	- / -19	2	Partial capture
07-19 12:23	20m	-8 / -	DK4FH	- / -14	2	✓ Closing fragment
07-19 12:22	20m	-1 / -	DH1MFS	- / -9	2	Partial capture
07-19 12:21	20m	-1 / -	DK4BP	- / -5	2	✓ Closing fragment
07-19 11:17	20m	-8 / -	DG1LJP	- / -9	2	✓ Closing fragment
07-19 11:16	20m	-8 / -	BI4KYT	- / -11	2	✓ Closing fragment
07-19 11:14	20m	-6 / -	PD0JOY	-24 / -	4	✓ Closing observed
07-19 11:13	20m	-4 / -	K5ATN	- / -12	3	✓ Closing fragment
07-19 11:11	20m	-6 / -	DK0DMB	- / -11	2	✓ Closing fragment
07-19 11:07	20m	-8 / -	DB4MLA	- / -16	3	Partial capture
07-19 11:03	20m	-2 / -	EA4IPN	- / -8	2	✓ Closing fragment
07-19 11:02	20m	-5 / -	PF1B	- / -19	2	Partial capture
07-19 10:58	20m	-6 / -	IW8FCR	- / -23	2	✓ Closing fragment
07-19 10:55	20m	+4 / -	5N0YEN	- / -20	3	Partial capture
07-19 10:53	20m	-8 / -	DL9KM	-21 / -	3	✓ Closing observed
07-19 10:51	20m	-7 / -	YL3MJ	- / -8	3	✓ Closing fragment
07-19 10:49	20m	+1 / +10	TK5K	+8 / -8	5	✓ Full exchange observed
07-19 10:48	20m	+1 / -	2E1HAT	- / -15	2	Partial capture
07-19 10:46	20m	-4 / -	M7TGY	- / -18	2	✓ Closing fragment
07-19 10:46	20m	-5 / -	M7JVT	-16 / -	2	✓ Closing observed
07-12 14:23	20m	- / -14	EC5M	-7 / -	2	✓ Closing fragment
07-12 11:56	20m	-16 / -	OK1UOZ	- / -7	2	✓ Closing fragment
07-12 11:52	20m	-13 / -	CR7BUJ	- / -16	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
101400 -20 1099  DF7AX DL0IPA R-06
135130 -14 1802  DF7AX SQ9M R+00 (x2)

20m

UTC    dB Audio  Message
122715 -11  876  DK5UR DF7AX -11
122730 -15 2433  DF7AX DK5UR R-06
122745  -7  876  DK5UR DF7AX RR73
122815  -8  876  DG8MHB/P DF7AX RR73
122915  -8  876  F5SFT DF7AX -11
123100  -8  876  SV4TTE DF7AX -17 (x2)
123245  -2  876  DM2HEY DF7AX -11
123300  -7  533  DF7AX DM2HEY R-16
123315  -3  876  DM2HEY DF7AX RR73
123330  -6  534  DF7AX DM2HEY 73
132645 -10  830  2E1HAT DF7AX -04 (x2)
132745 -11  830  BA3NZ DF7AX -16 (x2)

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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