DO1HFS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN67

Receiver-side FT8 activity involving DO1HFS, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 160m, 80m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-08 and 2026-09-10.

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 73 FT8 messages attributed to DO1HFS as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (88%), followed by 10 m (8%) and 160 m (4%). Several six-hour UTC windows tied for the largest share (71%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (90%); the estimated median was -19 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

160m · 3 80m · 64 10m · 6

First attributed message: 2026-07-08
Last attributed message: 2026-09-10 05:30 UTC

Observed FT8 message patterns

Attributed sample: 73 messages
Active dates: 10 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -24 to -16 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 66, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 1.

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 DO1HFS in decoded directed-looking exchanges:

DH5NC · Fed. Rep. of Germany ×2 A71UN · Qatar LA1HW · Norway YO4DWD · Romania YO8PS · Romania DA6JN · Fed. Rep. of Germany DA6TT · Fed. Rep. of Germany DC9JVN · Fed. Rep. of Germany DH9DR · Fed. Rep. of Germany DJ3HW · Fed. Rep. of Germany DL2VEL · Fed. Rep. of Germany DL3KF · 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 DO1HFS

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: JN67 · 44 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 699 km (approx.)
Last such locator decoded: 2026-09-10 05:25 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	DO1HFS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 06:28	80m	- / -	DF0AWG	-6 / -	2	Partial capture
09-19 06:25	80m	- / +9	ON7USB	-6 / -	2	✓ Closing fragment
09-10 05:25	80m	- / -20	OE3FVU	-1 / -	11	Partial capture
09-10 05:22	80m	- / -8	OK1GK	0 / -	3	✓ Closing fragment
09-10 05:15	80m	- / -17	SP6FME	+12 / -	3	✓ Closing fragment
09-10 05:13	80m	-24 / -	DL7FE	-12 / +8	2	Partial capture
09-10 05:12	80m	-24 / -14	DC9JVN	-17 / -4	5	✓ Full exchange observed
08-30 06:21	80m	-24 / -	<...>	- / -	2	Partial capture
08-30 06:15	80m	- / -10	S53X	-2 / -	2	Partial capture
08-30 06:13	80m	- / -	DH5NC	-10 / -	3	✓ Closing fragment
08-29 19:35	160m	-16 / -20	OM2WQ	+6 / -	5	Partial capture
08-15 05:17	80m	- / -1	DO2NM	-8 / -	2	✓ Closing fragment
08-13 05:31	80m	- / -	OE3KAB	+4 / -	3	Partial capture
08-13 04:59	80m	- / -5	DA6TT	-14 / -	4	✓ Closing fragment
08-08 05:14	80m	- / -3	DL2VEL	-14 / -	4	✓ Closing fragment
08-08 05:12	80m	- / -17	DH9DR	-22 / -	3	✓ Closing fragment
08-08 05:11	80m	-17 / -9	DL2VEL	-14 / -	3	✓ Closing observed
08-08 05:09	80m	-14 / -	DF7JS	- / -	2	Partial capture
07-31 07:07	10m	- / -12	A71UN	-7 / -	2	✓ Closing fragment
07-21 11:43	10m	- / -19	SV2AOB	-18 / -	2	Partial capture
07-16 05:23	80m	-20 / -22	SP7SZJ	+5 / 0	4	✓ Full exchange observed
07-16 04:50	80m	-16 / -11	OM1AN	+10 / -	5	✓ Closing observed
07-16 04:48	80m	-16 / -	DO4EB	- / -	2	✓ Closing fragment
07-16 04:44	80m	-19 / -6	F1PBZ	-7 / -	4	✓ Closing observed
07-16 04:44	80m	- / -9	IQ4JO	0 / -	3	✓ Closing fragment
07-10 20:16	80m	-24 / -	DL3KF	-5 / -	2	✓ Closing observed
07-10 20:13	80m	-17 / -20	SQ8AZT	+14 / -6	3	✓ Full exchange observed
07-10 20:01	80m	- / -4	DJ3HW	-4 / -	2	✓ Closing fragment
07-10 19:53	80m	- / -13	DA6JN	+2 / -	3	✓ Closing fragment
07-10 19:47	80m	- / -	DL8MEK	-8 / -	3	✓ Closing fragment
07-10 19:45	80m	- / -19	SP3IPA	+3 / -	3	✓ Closing fragment
07-10 19:40	160m	- / -21	YO8PS	+10 / -	3	✓ Closing fragment
07-10 19:28	80m	-24 / -	DO3HUM	- / -	3	Partial capture
07-10 19:21	80m	-22 / -8	OE8TED	+4 / -	3	✓ Closing observed
07-09 04:59	80m	-16 / -10	IZ2EWN	-13 / -7	2	Partial capture
07-09 04:53	80m	- / -	DM2GG	+2 / -	2	Partial capture
07-09 04:47	80m	-12 / -7	DH5NC	-13 / -	4	✓ Closing observed
07-09 04:39	80m	-22 / -9	OE3DXA	+9 / -	4	✓ Closing observed
07-09 04:35	80m	-17 / -	HA7TM	+19 / +6	3	✓ Closing observed
07-09 04:31	80m	- / -15	SN93LOT	+3 / -	3	Partial capture
07-09 04:27	80m	-19 / -13	OE8DDX	+10 / +5	3	Partial capture
07-09 04:23	80m	-24 / -11	DO1OAS	-14 / -2	3	✓ Full exchange observed
07-09 04:22	80m	-17 / -17	DO3JP	-16 / -3	2	Partial capture
07-09 04:21	80m	-21 / -13	DO9BAU	+8 / +5	3	✓ Full exchange observed
07-08 11:37	10m	-18 / -	YO4DWD	- / -4	2	✓ Closing fragment
07-08 11:36	10m	-16 / -	LA1HW	- / +4	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
052615  -7 1620  DO1HFS OE3FVU JN78 (x8)
053000 -24  971  ON3CCM DO1HFS -15
053015  -3 1620  DO1HFS OE3FVU R-20 (x2)
062545  -8 1450  DO1HFS ON7USB +09 (x2)
062815  -6  690  DO1HFS DF0AWG JO52 (x2)

160m

UTC    dB Audio  Message
193330 -12  801  DO1HFS YO7EY KN14
194045  +7 1157  DO1HFS YO8PS KN37 (x3)
193530 -14  882  OM2WQ DO1HFS JN67 (x3)
193715  +5 1793  DO1HFS OM2WQ -20 (x2)

10m

UTC    dB Audio  Message
113230 -19 1616  F6JON/QRP DO1HFS R+18
113415  -4  774  CR7BRV DO1HFS JN67
113600 -17 1295  LA1HW DO1HFS R+04 (x2)
113700 -20 1295  YO4DWD DO1HFS R-04 (x2)
082445  +1 1695  DO1HFS LZ2HN -09
114315 -19 2209  DO1HFS SV2AOB -19 (x2)
070730  -9  723  DO1HFS A71UN -12 (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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