HA7TJ — 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: Hungary Most frequent locator attributed to this token: JN97

Receiver-side FT8 activity involving HA7TJ, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-07-21.

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 39 FT8 messages attributed to HA7TJ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 20 m (31%). In this small sample, the estimated median decoder S/N was -4 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

40m · 27 20m · 12

First attributed message: 2026-07-17
Last attributed message: 2026-07-21 13:13 UTC

Observed FT8 message patterns

Attributed sample: 39 messages
Active dates: 2 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -12 to +5 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 29.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with HA7TJ in decoded directed-looking exchanges:

DO5SMD · Fed. Rep. of Germany HB9HFR · Switzerland IU5LAD · Italy M0BEW · England DK7ZT · Fed. Rep. of Germany EB3JT · Spain EB4DMH · Spain SP3MS · Poland EA3HMM · Spain

Most frequent locator attributed to HA7TJ

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: JN97 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 340 km (approx.)
Last such locator decoded: 2026-07-21 13:08 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	HA7TJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 20:17	40m	- / -2	DA125RH	+6 / -	4	Partial capture
10-11 19:34	40m	- / -	EA3HMM	-2 / -	2	✓ Closing fragment
08-29 20:18	20m	- / -	DL3GA	+6 / -	2	Partial capture
08-29 20:18	20m	- / +1	DK0SD	0 / -	2	Partial capture
08-29 19:59	20m	- / 0	AO5FSB	+11 / -	6	Partial capture
08-22 19:23	10m	- / -4	II7MGXX	0 / -	2	Partial capture
08-16 20:14	20m	- / -6	EB3JT	+6 / -	3	✓ Closing fragment
08-16 19:53	20m	- / +9	SP3MS	-4 / -	2	✓ Closing fragment
08-16 19:44	20m	- / -	R6FX	-1 / -	3	Partial capture
08-16 19:42	20m	- / -16	F4HTA	-6 / -	4	Partial capture
07-29 19:52	10m	- / -2	IU5LAD	-19 / -	2	✓ Closing fragment
07-29 19:38	10m	- / -	HB9HFR	-11 / -	2	✓ Closing fragment
07-29 19:21	10m	- / -6	IZ0ZIP	0 / -	2	Partial capture
07-29 18:53	10m	- / -	PD0IFI	-13 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
193330  -2  877  HA7TJ TA1CQ -04
193430  -3  281  HA7TJ EA3HMM JN00 (x2)
200030 -20 1117  HA7TJ M7MFS -11
201700  -2  573  HA7TJ DA125RH -02 (x4)

20m

UTC    dB Audio  Message
201430  +6  790  HA7TJ EB3JT R-06 (x2)
201600 -13  789  HA7TJ DK7ZT RR73
195700 -18 1280  HA7TJ F5SFT +14
195945 +14 1884  HA7TJ AO5FSB +00 (x6)
200645 -10 1419  HA7TJ EB4DMH RR73
201800  -2 1379  HA7TJ DK0SD +01
201815  +8  326  HA7TJ DL3GA +12
201830  +2 1379  HA7TJ DK0SD +01
201845  +4  326  HA7TJ DL3GA +12

10m

UTC    dB Audio  Message
185330 -12  857  HA7TJ PD0IFI JO32 (x3)
190500 -23 1565  HA7TJ DO5SMD RR73
192130  -2  344  HA7TJ IZ0ZIP -06 (x2)
193815 -12  889  HA7TJ HB9HFR +17 (x2)
195245 -16 1572  HA7TJ IU5LAD -02 (x2)
191300 -15 1034  HA7TJ M0BEW RR73
192345  +1  747  HA7TJ II7MGXX -04 (x2)

CW

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

Explore CW reception at SO8OO

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