DK3HV — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DK3HV, decoded by SO8OO in southeastern Poland. 4,039 FT8 messages attributed to this token as transmitter, on 160m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-11-04.

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 4,039 FT8 messages attributed to DK3HV as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (75%), followed by 40 m (17%) and 10 m (6%). Most decodes (62%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

4,039

Messages attributed

UTC dates decoded

332

Active 15-min windows

-10 dB

Estimated median S/N

Bands

160m · 75 40m · 702 20m · 3,020 10m · 242

First attributed message: 2026-06-22
Last attributed message: 2026-11-04 09:52 UTC

Observed FT8 message patterns

Attributed sample: 4,039 messages
Active dates: 27 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 906, moderate (-15 to -9 dB) 1,458, strong (≥ -8 dB) 1,675.

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 DK3HV in decoded directed-looking exchanges:

EA1FUY · Spain ×2 HB9TWU · Switzerland ×2 PD0MDX · Netherlands ×2 PD0PHA · Netherlands ×2 SP2OSP · Poland ×2 G0HSP · England ×2 G4SRT · England ×2 HG5OGI · Hungary ×2 F5RQQ · France G7RAU · England K1SFA · United States LX1NO · Luxembourg

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 DK3HV

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: JO31 · 2,506 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-11-04 09:52 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	DK3HV S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 09:41	40m	- / -	PD1DBL	-18 / -	2	Partial capture
11-04 09:52	40m	-22 / -12	IW0FGX	-12 / -	3	Partial capture
11-04 09:51	40m	-22 / -	IZ5RKH	- / -	3	Partial capture
11-04 09:49	40m	-21 / -	DG3SBJ	-16 / -	10	Partial capture
11-04 09:48	40m	-22 / -	G8YPE	- / -4	3	✓ Closing fragment
11-04 09:38	40m	-18 / -	IZ1GCN	- / -5	2	Partial capture
11-04 09:34	40m	- / -	DD7EE	-16 / -	2	Partial capture
11-04 09:34	40m	-20 / -	IK3ZQY	- / -	3	Partial capture
11-04 09:32	40m	-18 / -	EA4HW	- / -5	3	✓ Closing fragment
11-04 09:31	40m	-17 / -	G3JPJ	- / -12	3	✓ Closing fragment
11-04 09:28	40m	-17 / -	F5ADE	-17 / +3	3	✓ Closing observed
11-04 09:26	40m	-17 / -	F4CGN	- / -8	4	✓ Closing fragment
11-04 09:24	40m	-16 / -	DL6WPT	- / -7	3	✓ Closing fragment
11-04 09:22	40m	-18 / -	HB9HYO	- / -9	3	✓ Closing fragment
11-04 09:21	40m	-16 / -	SQ7TX	- / -	3	Partial capture
11-04 09:19	40m	-19 / -	OP4W	- / -	3	Partial capture
11-04 09:15	40m	-14 / -10	S53AK	-5 / -8	4	✓ Full exchange observed
11-04 09:14	40m	-19 / -	DL3LBP	- / -7	3	✓ Closing fragment
11-04 09:12	40m	-18 / -	DK4TX	- / +3	3	✓ Closing fragment
11-04 09:10	40m	-18 / -	OK4SU	-18 / -11	5	✓ Full exchange observed
11-04 09:08	40m	-17 / -	IS0VSG	- / -	3	Partial capture
11-04 09:06	40m	-13 / -	DL2ADI	-22 / +2	5	✓ Full exchange observed
11-04 09:04	40m	-15 / -	OE5BTM	- / -	3	Partial capture
11-04 09:03	40m	-16 / +1	DG2EBG	-23 / -	4	Partial capture
11-04 09:01	40m	-20 / -	PD2MAC	- / -6	3	✓ Closing fragment
11-04 08:59	40m	-15 / -	IW4BYK	- / -8	3	✓ Closing fragment
11-04 08:57	40m	-16 / -	DB4MS	- / -7	3	Partial capture
11-04 08:54	40m	-17 / -	DB2TE	- / -	3	Partial capture
11-04 08:52	40m	-20 / -	EA5GKL	- / -	3	Partial capture
11-04 08:51	40m	-22 / -	DH3KR	-11 / -	7	Partial capture
11-04 08:50	40m	-20 / +6	PA7ZZ	-8 / -	3	✓ Closing observed
11-04 08:48	40m	-18 / -	EA5KEP	- / -19	2	✓ Closing fragment
11-04 08:33	40m	-14 / -	G4SRT	- / -	2	✓ Closing fragment
11-04 08:32	40m	-11 / -11	SP4MPH	+10 / -8	4	✓ Full exchange observed
11-04 08:30	40m	-12 / -	DF2KD	- / -	2	✓ Closing fragment
11-04 08:28	40m	-11 / -	DG6COC	- / -8	3	✓ Closing fragment
11-04 08:24	40m	-19 / -	DK5UR	-12 / -	3	✓ Closing observed
11-04 08:22	40m	-17 / -	SP6TSE	- / -	3	Partial capture
11-04 08:21	40m	-18 / -	G0HSP	- / +1	3	✓ Closing fragment
11-04 08:19	40m	-15 / -	EA6TU	- / -12	3	✓ Closing fragment
11-04 08:17	40m	-16 / -	G0XLX	- / -	2	Partial capture
11-04 08:15	40m	-20 / -	GB3RS	- / -19	4	✓ Closing fragment
11-04 08:14	40m	-20 / -	M0ELS	- / -3	3	✓ Closing fragment
11-04 08:09	40m	-20 / -	DL6LAL	- / -	3	Partial capture
11-04 08:08	40m	-17 / -6	HA7TM	+6 / -	3	✓ Closing observed
11-04 08:04	40m	-13 / -	DJ2MS	- / -2	3	✓ Closing fragment
11-04 08:02	40m	-17 / -	GU4YBW	- / -10	3	✓ Closing fragment
11-04 08:01	40m	-20 / -	DB1HEF	- / -14	3	✓ Closing fragment
11-04 07:59	40m	-18 / -	LB2WD	- / -11	3	✓ Closing fragment
11-04 07:58	40m	-18 / -	PD0PHA	- / -2	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
095100 -20 1301  DK3HV DG3SBJ +12
095115 -21 1891  IZ5RKH DK3HV JO31
095130 -15 1301  DK3HV DG3SBJ +12
095145 -24 1891  IZ5RKH DK3HV JO31
095200 -15 1301  DK3HV DG3SBJ +12
095215 -20 1892  IZ5RKH DK3HV JO31
095230 -16 1301  DK3HV DG3SBJ +12
095245 -22 1892  IW0FGX DK3HV JO31
095300 -11  785  DK3HV IW0FGX -12
095300 -13 1301  DK3HV DG3SBJ +12
095330 -12  785  DK3HV IW0FGX -12
095330 -16 1301  DK3HV DG3SBJ +12 (x2)
094130 -18 1583  DK3HV PD1DBL JO22 (x2)

10m

UTC    dB Audio  Message
110215 -22 2055  CQ DK3HV JO31
130830  -6  436  DK3HV 4Z5AY KM72 (x2)
094900 -12 2643  DK3HV EB3JT JN01
162145 -17 2293  CE2EP DK3HV JO31

60m

UTC    dB Audio  Message
061100 -20 1655  DK3HV F4JKT RR73

160m

UTC    dB Audio  Message
035315 -15 1732  DK3HV F5RQQ RR73
035330 -12 2373  S53F DK3HV JO31
035345  +2 1520  DK3HV S53F R JN75
035345 -11 1732  DK3HV F5RQQ RR73
035400 -12 2374  S53F DK3HV RR73
035415  +3 1520  DK3HV S53F 73
035545 -15 2374  DL8OBF DK3HV JO31 (x6)
040100 -12 2374  S53F DK3HV JO31 (x2)
040145  -1 1519  DK3HV S53F R JN75

20m

UTC    dB Audio  Message
104045 -21 2006  KB3DQI DK3HV JO31 (x3)
104430 -22 2006  KE2FUM DK3HV JO31 (x6)
104800 -24 1570  DK3HV 2E0NBL RRR
104830 -23 2006  KE2FUM DK3HV R-15
104830 -22 1570  DK3HV 2E0NBL RRR (x2)
104930 -22 2006  KE2FUM DK3HV JO31
104930 -24 1569  DK3HV 2E0NBL RRR

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee