JH4DIT — 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: Japan Most frequent locator attributed to this token: PM65

Receiver-side FT8 activity involving JH4DIT, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-05 and 2026-10-15.

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 20 FT8 messages attributed to JH4DIT as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (65%), followed by 80 m (20%) and 40 m (15%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (75%); the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 4 40m · 3 20m · 13

First attributed message: 2026-08-05
Last attributed message: 2026-10-15 21:00 UTC

Observed FT8 message patterns

Attributed sample: 20 messages
Active dates: 6 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -16 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 3.

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 JH4DIT in decoded directed-looking exchanges:

CN8WK · Morocco ×2 EA3AKY · Spain 4L7T · Georgia 7X5CY · Algeria EA1B · Spain EA6UE · Balearic Islands EB3JT · Spain EX7CQ · Kyrgyzstan SP2WRE · Poland TA3GO · Asiatic Turkey EC3A · Spain GI4SNA · Northern Ireland

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 JH4DIT

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: PM65 · 7 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,366 km (approx.)
Last such locator decoded: 2026-10-15 21:00 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	JH4DIT S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-15 21:00	80m	- / -21	ON4IQ	+11 / -	3	✓ Closing fragment
10-15 20:59	80m	-14 / -	LA9GX	- / -	2	Partial capture
10-12 20:30	80m	- / -	RK6OQ	-6 / -	2	Partial capture
09-30 21:47	40m	- / -19	DL5YAS	+1 / -	4	Partial capture
09-30 21:45	40m	-12 / -11	EC3A	-22 / -	3	✓ Closing observed
09-30 21:45	40m	- / -	PE1NPS	-6 / -	4	Partial capture
09-30 21:43	40m	-11 / -	GI4SNA	- / -	2	✓ Closing fragment
09-28 21:37	40m	- / -18	EA9ABC	-10 / -	2	Partial capture
09-28 21:12	80m	- / -24	OK4YL	+22 / -	2	✓ Closing fragment
09-28 21:00	80m	- / -	UA4FKT	+5 / -	4	Partial capture
09-28 20:59	80m	-24 / -13	CN8WK	+10 / -	3	✓ Closing observed
09-23 21:16	80m	- / -18	CN8WK	-8 / -	2	Partial capture
08-21 20:49	20m	-12 / -	SV1MOZ	- / -2	2	Partial capture
08-21 20:49	20m	- / -	YU7TMR	-14 / -	2	Partial capture
08-21 20:47	20m	-9 / -18	EB3JT	+5 / -	4	✓ Closing observed
08-21 20:46	20m	-9 / +3	4L7T	-7 / -10	3	✓ Full exchange observed
08-21 20:42	20m	-10 / -	TA3GO	- / -	2	✓ Closing fragment
08-21 20:41	20m	-7 / -	EX7CQ	- / +2	3	✓ Closing fragment
08-10 22:07	20m	- / -16	SP2WRE	+7 / -	5	✓ Closing fragment
08-10 22:05	20m	- / +2	EA6UE	-12 / -	4	✓ Closing fragment
08-05 22:24	20m	-9 / -	7X5CY	-7 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
210015  +9 2344  JH4DIT UA4FKT LO23 (x4)
210945 +25 2847  JH4DIT OK4YL -19 (x3)
203000  -5 1502  JH4DIT RK6OQ KN87 (x2)
203915 -15 2101  ER5DX JH4DIT PM65
205930 -12  238  LA9GX JH4DIT PM65 (x2)
210015 +16 2643  JH4DIT ON4IQ JO20 (x3)

40m

UTC    dB Audio  Message
214345 -11 2679  GI4SNA JH4DIT PM65 (x2)
214500  -4 1886  JH4DIT PE1NPS JO22 (x2)
214530 -20 1260  JH4DIT EC3A -11
214600  -7 1886  JH4DIT PE1NPS JO22
214600 -23 1260  JH4DIT EC3A RR73
214615 -12 2679  EC3A JH4DIT 73
214630  -8 1886  JH4DIT PE1NPS JO22
214700  +9 1593  JH4DIT OH8SR KP44
214700  +0 2680  JH4DIT DL5YAS JO31
214730 -20 1644  JH4DIT IU8RFW JN70
214730  +9 2680  JH4DIT DL5YAS JO31 (x3)

10m

UTC    dB Audio  Message
094915 -12  779  JH4DIT EA3AKY RR73
063915 -21 2218  JH4DIT EP2AES -25

20m

UTC    dB Audio  Message
204245 -10  276  TA3GO JH4DIT PM65 (x2)
204445 -12  276  LA4NM JH4DIT R-07
204615  -9  276  4L7T JH4DIT -10
204630  -7  310  JH4DIT 4L7T R+03
204645  -9  276  4L7T JH4DIT RR73
204700  +5  277  JH4DIT EB3JT JN01 (x2)
204745  -9  276  EB3JT JH4DIT RR73
204800  +5  277  JH4DIT EB3JT 73
204930 -13 1972  JH4DIT YU7TMR KN05
204945 -12  276  SV1MOZ JH4DIT -02
205000 -15 1972  JH4DIT YU7TMR KN05
205015 -12  276  SV1MOZ JH4DIT -02
205215 -13  276  EA1B JH4DIT 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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