DF3HM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO43

Receiver-side FT8 activity involving DF3HM, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 80m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-09-09.

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 37 FT8 messages attributed to DF3HM as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 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 -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 37

First attributed message: 2026-07-05
Last attributed message: 2026-09-09 19:54 UTC

Observed FT8 message patterns

Attributed sample: 37 messages
Active dates: 3 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -21 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 17.

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 DF3HM in decoded directed-looking exchanges:

DL4BBY · Fed. Rep. of Germany LZ1ZF · Bulgaria 9A4ZM · Croatia DK1MBY · Fed. Rep. of Germany DK7ZT · Fed. Rep. of Germany DL2VEL · Fed. Rep. of Germany DO5HOK · Fed. Rep. of Germany DO9BAU · Fed. Rep. of Germany EA1FAW · Spain F5RRS · France G3BAM · England SC9WWA · Sweden

Most frequent locator attributed to DF3HM

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: JO43 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 964 km (approx.)
Last such locator decoded: 2026-09-09 19:51 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	DF3HM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-09 20:15	160m	- / -25	DL4BBY	-5 / -	3	✓ Closing fragment
09-09 19:52	80m	-15 / -19	DK7ZT	+2 / +5	5	✓ Full exchange observed
09-09 19:50	80m	-18 / -	IN3LTL	- / -	2	Partial capture
09-09 19:43	80m	- / -16	SQ9BC	+20 / -	2	✓ Closing fragment
09-09 19:30	80m	-21 / -	DK1MBY	-16 / -16	5	✓ Closing observed
09-09 19:30	80m	-18 / -8	HA7TM	+17 / +10	6	Partial capture
09-09 19:28	80m	- / -16	DK7ZT	+2 / -	5	Partial capture
09-09 19:27	80m	-20 / -	DO5HOK	+2 / -	3	✓ Closing observed
09-09 19:17	80m	- / -16	SP7OK	+14 / -	2	✓ Closing fragment
07-07 21:17	80m	- / -	UA4FKT	+9 / -	4	Partial capture
07-07 21:16	80m	- / -4	SP6U	-10 / -	2	✓ Closing fragment
07-06 11:14	20m	- / -17	IU5HIU	-16 / -	2	Partial capture
07-05 23:44	80m	-10 / -	EA1FAW	- / -18	2	✓ Closing fragment
07-05 23:41	80m	-10 / -8	DL2VEL	+2 / +5	5	✓ Full exchange observed
07-05 23:38	80m	-6 / -	EA1FAW	- / -	3	Partial capture
07-05 23:36	80m	-1 / -	IK4LZH	- / -	2	Partial capture
07-05 23:33	80m	-14 / -6	F5RRS	+12 / -	4	✓ Closing observed
07-05 23:31	80m	-6 / -	9A4ZM	+12 / -29	7	✓ Closing observed
07-05 23:25	80m	0 / -	9A4ZM	+10 / +1	4	Partial capture
07-05 23:24	80m	-6 / -4	DO9BAU	+8 / -	4	✓ Closing observed
07-05 23:24	80m	- / -	UA4FKT	+20 / -	2	Partial capture
07-05 23:23	80m	+2 / +5	SC9WWA	+12 / -15	4	✓ Full exchange observed
07-05 23:20	80m	-12 / -	G3BAM	0 / -1	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
201545  -5 2634  DF3HM DL4BBY -25 (x3)

80m

UTC    dB Audio  Message
193215 +18  809  DF3HM HA7TM R-08
193215 -12 1206  DF3HM DK1MBY JN58
193245 +20  809  DF3HM HA7TM R-08
193245 -18 1206  DF3HM DK1MBY JN58
193300 -21  808  DK1MBY DF3HM -16 (x2)
194330 +21  758  DF3HM SQ9BC -16 (x2)
195030 -15 1742  IN3LTL DF3HM JO43 (x2)
195245  -4 1113  DF3HM DK7ZT -19 (x2)
195400 -17 1742  DK7ZT DF3HM R+05
195415  +5 1113  DF3HM DK7ZT RR73
195430 -13 1742  DK7ZT DF3HM 73

20m

UTC    dB Audio  Message
110545 -17 2481  DF3HM IU5HIU JN53
110945  -3  680  DF3HM LZ1ZF RR73
111415 -16 2529  DF3HM IU5HIU JN53 (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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