KD1J — 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: United States Most frequent locator attributed to this token: FN31

Receiver-side FT8 activity involving KD1J, decoded by SO8OO in southeastern Poland. 210 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-29.

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 210 FT8 messages attributed to KD1J as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (23%). Most decodes (100%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

210

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 48 40m · 162

First attributed message: 2026-06-10
Last attributed message: 2026-08-29 03:15 UTC

Observed FT8 message patterns

Attributed sample: 210 messages
Active dates: 13 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -19 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 57, moderate (-15 to -9 dB) 111, strong (≥ -8 dB) 42.

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 KD1J in decoded directed-looking exchanges:

9A5E · Croatia ×2 DM5KM · Fed. Rep. of Germany ×2 AD8HD · United States CO8CF · Cuba CT2HEX · Portugal CT3HU · Madeira Islands CU2JX · Azores DC1KN · Fed. Rep. of Germany DK7VK · Fed. Rep. of Germany DL1USB · Fed. Rep. of Germany EA3IAZ · Spain EA7JSA · Spain

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 KD1J

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: FN31 · 81 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 6,913 km (approx.)
Last such locator decoded: 2026-08-29 03:14 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	KD1J S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 03:23	80m	- / -16	MI0OBC	+2 / -	2	✓ Closing fragment
08-29 03:20	80m	- / -17	YO9IAB	+11 / -	15	Partial capture
08-29 03:14	80m	-13 / -15	UR5SG	+15 / -	4	✓ Closing observed
08-29 03:12	80m	- / -	EU6MM	0 / -	2	Partial capture
08-29 03:07	80m	-11 / -16	F4IIX	+1 / -11	10	✓ Full exchange observed
08-29 03:06	80m	-14 / -	W4CJK	- / -19	2	Partial capture
08-29 03:04	80m	- / -	CT3MD	-7 / -	3	Partial capture
08-29 03:03	80m	-19 / -	N1KSY	- / +8	2	✓ Closing fragment
08-29 03:02	80m	-18 / -	HC1BG	- / -10	2	Partial capture
08-29 03:00	80m	-18 / -20	DO6FM	+13 / -10	4	✓ Full exchange observed
08-29 02:58	80m	-14 / -9	DM5KM	+24 / -4	6	✓ Full exchange observed
08-29 02:57	80m	-14 / -	KZ8C	- / -6	2	✓ Closing fragment
08-29 02:52	80m	- / -	IU6KKW	-3 / -	5	Partial capture
08-29 02:52	80m	- / -	R2AL	+1 / -	4	Partial capture
08-29 02:51	80m	-15 / -14	DO1ID	+18 / -8	3	✓ Full exchange observed
08-29 02:44	80m	- / -	R2AL	+5 / -	8	Partial capture
08-29 02:42	80m	-18 / -	N8NN	- / +6	2	Partial capture
08-29 02:40	80m	- / -	4L7T	-6 / -	2	Partial capture
08-29 02:40	80m	-15 / -	KD0XD	- / -18	3	✓ Closing fragment
08-29 02:39	80m	-18 / -13	9A5E	+12 / -2	5	✓ Full exchange observed
08-29 02:37	80m	- / -	R2AL	+9 / -	3	Partial capture
08-29 02:36	80m	-9 / -	KB0STL	- / -14	3	✓ Closing fragment
08-29 02:33	80m	- / -4	DO1ID	+10 / -	2	Partial capture
08-29 02:32	80m	-5 / -21	DO6FM	+13 / -	4	Partial capture
08-28 03:10	20m	- / -	EK1KE	-6 / -	6	Partial capture
08-28 02:31	40m	- / -	RW6MMU	-3 / -	3	Partial capture
08-28 02:29	40m	-12 / -7	EA3IAZ	-14 / -13	5	✓ Full exchange observed
08-28 02:24	40m	- / -	TA2EE	-17 / -	7	Partial capture
08-28 02:23	40m	-16 / -15	SV1DKR	-8 / -10	4	✓ Full exchange observed
08-28 02:22	40m	-16 / -	KC3WOX	- / +7	3	✓ Closing fragment
08-28 02:20	40m	-12 / -	KN4ZUJ	- / -6	3	✓ Closing fragment
08-28 02:10	40m	-10 / -15	EK1KE	-8 / -13	14	Partial capture
08-28 02:08	40m	-14 / -	M7LVD	- / -14	2	✓ Closing fragment
08-28 01:42	40m	-10 / -22	EA7JSA	-6 / -	5	✓ Closing observed
08-28 01:41	40m	-9 / -	KQ4IBI	- / -	2	✓ Closing fragment
08-28 01:39	40m	-7 / -	UX1AA	- / -5	3	✓ Closing fragment
08-28 01:36	40m	-14 / -	AD8HD	- / -17	2	✓ Closing fragment
08-28 01:23	40m	- / -	R6LKG	-5 / -	4	Partial capture
08-28 01:22	40m	-3 / -	KB3VRC	- / -5	3	✓ Closing fragment
08-28 01:05	40m	-16 / -	KE2FUM	- / +8	3	✓ Closing fragment
08-28 00:54	40m	-9 / -	CU2JX	- / -15	3	✓ Closing fragment
08-28 00:53	40m	-9 / -13	R2BQM	+12 / -8	5	✓ Full exchange observed
08-28 00:51	40m	-4 / -	VA2HMD	- / +9	2	Partial capture
08-28 00:48	40m	-8 / -	KA8ARI	- / -8	2	Partial capture
08-28 00:46	40m	-15 / -	K4WSP	- / +6	3	✓ Closing fragment
08-28 00:43	40m	-9 / -	KF8CKH	- / -7	3	✓ Closing fragment
08-28 00:40	40m	- / -	TA2EE	-20 / -	2	Partial capture
08-28 00:38	40m	-13 / -	N9MSG	- / -3	3	✓ Closing fragment
08-28 00:35	40m	-10 / -	VA3ZNQ	- / -9	3	✓ Closing fragment
08-28 00:32	40m	-15 / -4	UR8MB	+6 / 0	4	✓ 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
032215 +11 2327  KD1J YO9IAB KN25
032215 -17  949  KD1J WZ4K RR73
032245 +11 2327  KD1J YO9IAB KN25
032315  +2 2509  KD1J MI0OBC -16
032345  +8 2327  KD1J YO9IAB KN25 (x4)
032515  +2 2509  KD1J MI0OBC RR73
032545 +14 2326  KD1J YO9IAB R-17 (x6)

20m

UTC    dB Audio  Message
031000 -18 1321  KD1J EK1KE RRR (x6)

40m

UTC    dB Audio  Message
022715 -19 2231  KD1J TA2EE KM69 (x4)
022915 -12 2192  EA3IAZ KD1J FN31
022930 -13 2191  KD1J EA3IAZ -07
022945 -14 2192  EA3IAZ KD1J R-13
023000 -14 2191  KD1J EA3IAZ RR73
023015 -11 2192  EA3IAZ KD1J 73
023030 +16 2781  KD1J RZ6L KN97
023100  +3 2805  KD1J US1VM -01
023100  -1 1983  KD1J RW6MMU LN07 (x3)
024415 -15 1588  OE4BHF KD1J FN31

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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