DH1JAD — 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 DH1JAD, decoded by SO8OO in southeastern Poland. 683 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 90 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-23.

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 683 FT8 messages attributed to DH1JAD as the transmitting token by decoded message structure across 90 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 40 m (35%) and 20 m (13%). Several six-hour UTC windows tied for the largest share (87%), 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

683

Messages attributed

UTC dates decoded

161

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 353 40m · 241 20m · 89

First attributed message: 2026-06-07
Last attributed message: 2026-10-23 19:38 UTC

Observed FT8 message patterns

Attributed sample: 683 messages
Active dates: 90 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 133, moderate (-15 to -9 dB) 214, strong (≥ -8 dB) 336.

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 DH1JAD in decoded directed-looking exchanges:

M9OOS · England ×2 DL6MRM · Fed. Rep. of Germany ×2 DL6NDN · Fed. Rep. of Germany ×2 F4GGK · France ×2 LY8O · Lithuania ×2 ON6PL · Belgium ×2 SQ6JFJ · Poland ×2 G0JEI · England ×2 CT7AUT · Portugal 2E1HAT · England 9A2L · Croatia 9A3AUH · Croatia

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 DH1JAD

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 · 275 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-10-23 19:33 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	DH1JAD S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 19:36	80m	+2 / -4	OK1WCF	+19 / -	9	✓ Full exchange observed
10-23 19:35	80m	-3 / -	DA6DNA	- / -8	2	✓ Closing fragment
10-23 19:33	80m	-2 / -8	YO2LIM	+4 / -1	5	✓ Full exchange observed
10-23 19:29	80m	-6 / -2	G0HSP	-12 / +8	5	✓ Full exchange observed
10-23 19:27	80m	-4 / -7	DK0IL	-4 / -5	3	✓ Full exchange observed
10-23 19:25	80m	-5 / -	F4MXQ	- / -5	3	✓ Closing fragment
10-21 19:55	80m	-3 / -	DA6OOM	- / -5	4	✓ Closing fragment
10-21 19:54	80m	-8 / -	DO2GGH	+9 / -	4	✓ Full exchange observed
10-21 19:49	80m	-4 / -13	YO7LMU	+7 / +7	8	✓ Full exchange observed
10-21 19:48	80m	-4 / -10	OM2IB	+4 / 0	4	✓ Full exchange observed
10-21 19:47	80m	-1 / -	DO1TLP	-8 / -	3	✓ Closing observed
10-21 19:45	80m	-6 / -3	IZ2QPP	-4 / +3	3	✓ Full exchange observed
10-21 19:44	80m	0 / -	ON1EHF	- / -	2	Partial capture
10-21 19:41	80m	-4 / -16	DG0OFT	+2 / +2	5	✓ Full exchange observed
10-21 19:36	80m	-4 / -4	SP3ATB	+15 / -	4	✓ Full exchange observed
10-21 19:34	80m	- / -12	DO8OS	0 / -	2	✓ Closing fragment
10-21 19:31	40m	-2 / -	9A5MTV	- / -	2	Partial capture
10-21 19:30	40m	-4 / -14	G7KFQ	-13 / -	3	Partial capture
10-16 12:38	10m	- / +1	CT7AUT	-6 / -	2	✓ Closing fragment
10-14 19:36	80m	- / -15	DO8JB	+2 / -	3	✓ Closing fragment
10-14 19:34	80m	- / -17	DC0GL	+5 / -	2	✓ Closing fragment
10-14 19:24	40m	-6 / -14	SV1EAG	-15 / +6	5	✓ Full exchange observed
10-12 19:40	80m	-4 / -5	GW4HZA	-7 / -6	5	✓ Full exchange observed
10-12 19:38	80m	-8 / +6	DO1JAR	+4 / -	3	✓ Closing observed
10-12 19:37	80m	- / -6	HB9EKJ	-9 / -	2	✓ Closing fragment
10-12 19:35	80m	-13 / -5	DK7TX	+4 / -	3	✓ Closing observed
10-12 19:26	40m	-11 / -5	IZ8GUU	-10 / +7	7	✓ Full exchange observed
10-10 19:35	80m	-1 / -15	DM8ITZ	-2 / -	3	✓ Closing observed
10-10 19:32	80m	-5 / -5	PE1NAO	-3 / -4	5	✓ Full exchange observed
10-10 19:30	80m	+2 / -	F4GGK	- / -1	2	✓ Closing fragment
10-10 19:28	80m	-10 / -	M3FGR	- / +3	4	✓ Closing fragment
10-10 19:24	80m	-5 / -11	SP5RZL	-12 / +5	6	Partial capture
10-10 19:22	80m	-4 / -	G0ORH	- / -	2	✓ Closing fragment
10-10 19:19	80m	- / -13	OE1RDU/3	+4 / -	3	Partial capture
10-10 19:18	80m	+2 / -	OL900LTV	- / 0	2	Partial capture
10-08 12:52	40m	- / -14	SP4MPH	+8 / -	2	✓ Closing fragment
10-08 12:47	40m	-19 / -	PD1ACS	- / +4	2	✓ Closing fragment
10-08 12:45	40m	- / -16	SQ5ANT	-14 / -	2	✓ Closing fragment
10-08 12:43	40m	-16 / -	DL7PIA	-5 / +10	3	✓ Closing observed
10-07 19:00	40m	-13 / -	SQ9SET	- / -7	3	Partial capture
10-05 19:05	40m	-12 / -	SP9XKV	- / -5	3	✓ Closing fragment
10-03 19:47	40m	-8 / -	M9TEY	- / +6	3	✓ Closing fragment
10-03 19:45	40m	-10 / -10	IK4RVY	-4 / -3	5	✓ Full exchange observed
10-03 19:42	40m	- / +7	GW5NIC	-6 / -	2	✓ Closing fragment
09-30 19:16	80m	-6 / +2	DO1BOC	-13 / +2	3	✓ Full exchange observed
09-30 19:08	80m	-12 / -8	DL50SOL	-20 / -5	3	Partial capture
09-29 19:53	80m	-1 / -11	EI2KM	+3 / +3	6	✓ Full exchange observed
09-29 19:50	80m	+3 / -7	MX0SQC	-7 / -4	5	✓ Full exchange observed
09-29 19:49	80m	+2 / -4	9A9N	+2 / -	2	Partial capture
09-29 19:47	80m	-8 / -10	YU7AS	+8 / +5	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
193400  +2  928  DH1JAD YO2LIM -08
193415  +1  913  YO2LIM DH1JAD R-01
193430  +6  928  DH1JAD YO2LIM RR73
193445  -7  914  YO2LIM DH1JAD 73
193515  -5  914  DA6DNA DH1JAD -08 (x2)
193600 +19  916  DH1JAD OK1WCF JO80 (x5)
193815  +0  902  OK1WCF DH1JAD +16
193830 +19  916  DH1JAD OK1WCF R-04
193845  +3  903  OK1WCF DH1JAD RR73
193900 +16  916  DH1JAD OK1WCF 73

40m

UTC    dB Audio  Message
192700  -6 1198  IZ8GUU DH1JAD R+07
192715 -10 1205  DH1JAD IZ8GUU RR73
192730 -15 1199  IZ8GUU DH1JAD 73
192900  -8  820  SP4BB DH1JAD 73
192415  -3 1821  SV1EAG DH1JAD JO31
192430 -15 1832  DH1JAD SV1EAG -14
192445  -7 1821  SV1EAG DH1JAD R+06
192500 -15 1832  DH1JAD SV1EAG RR73
192515  -8 1822  SV1EAG DH1JAD 73
192530  -2  773  DH1JAD IZ4JMA JN54
193045  -4 1766  G7KFQ DH1JAD JO31 (x2)
193130 -13 1771  DH1JAD G7KFQ -14
193145  -4 1443  9A5MTV DH1JAD JO31 (x2)

10m

UTC    dB Audio  Message
123800  -9 1475  DH1JAD CT7AUT +01 (x2)

20m

UTC    dB Audio  Message
183500  -6  515  DH1JAD LZ1WV -14
182700  -9 1574  DH1JAD EA5JLN +03
091530  -5 1996  DH1JAD F6FDY RR73
194730  +0  978  DH1JAD II7MGXX -09
194800  +3  978  DH1JAD RR73; F1TXI <...> -04
195030  -4  813  DH1JAD CT7BDJ -02 (x2)
195700 -17 1040  HA3HM DH1JAD JO31
193200  +3  568  DH1JAD TA3KJ -16 (x2)
184930  -5 1844  DH1JAD G3VCQ -03 (x2)
185230  +0  621  DH1JAD M9OOS -19 (x2)
185530  -8  832  DH1JAD M3WHB RR73

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

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