YT1JN — 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: Serbia Most frequent locator attributed to this token: KN04

Receiver-side FT8 activity involving YT1JN, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-28 and 2026-08-23.

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 8 FT8 messages attributed to YT1JN as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 10 m (13%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

20m · 7 10m · 1

First attributed message: 2026-07-28
Last attributed message: 2026-08-23 21:07 UTC

Observed FT8 message patterns

Attributed sample: 8 messages
Active dates: 2 UTC dates
Estimated median S/N: -8 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 6.

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 YT1JN in decoded directed-looking exchanges:

A93MO · Bahrain CR7BRV · Portugal DN9MRB · Fed. Rep. of Germany RC6OU · European Russia RV3DCM · European Russia VE3ARF · Canada

Most frequent locator attributed to YT1JN

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: KN04 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 608 km (approx.)
Last such locator decoded: 2026-08-23 21:06 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	YT1JN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 11:59	10m	- / -14	CR7BRV	-4 / -	2	✓ Closing fragment
08-23 21:06	20m	-9 / -	BG7BVI	- / -19	2	Partial capture
08-23 21:01	20m	- / -	F5OYA/P	-5 / -	18	Partial capture
08-23 20:57	20m	- / -	F5OYA/P	-6 / -	2	Partial capture
08-23 20:55	20m	-1 / -	VE3ARF	- / -6	3	✓ Closing fragment
08-23 20:52	20m	-8 / -	TJ1GD	- / -	2	Partial capture
08-20 18:45	10m	- / -	DN9MRB	-16 / -	2	✓ Closing fragment
08-20 18:37	10m	- / -	PD0MJC	-7 / -	2	Partial capture
08-20 17:13	10m	- / -	DN9DKN	-10 / -	3	Partial capture
08-20 17:13	10m	- / -9	RN6MA	-22 / -	2	Partial capture
08-20 17:12	10m	- / -	DN9DZ	-7 / -	3	Partial capture
08-17 19:25	10m	- / -16	RV3DCM	-22 / -	4	✓ Closing fragment
08-17 18:44	10m	- / -5	UR9QQ	-16 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
171315  -8  400  YT1JN DN9DZ JO31
171315 -10  775  YT1JN DN9DKN JO31
171345 -24 1664  YT1JN RN6MA -09
171345 -11  775  YT1JN DN9DKN JO31
171415  -7  400  YT1JN DN9DZ JO31
171445 -17 1662  YT1JN DF9JL JO31
171515  -9  775  YT1JN DN9DKN JO31
183745  -8  589  YT1JN PD0MJC JO32 (x2)
184515 -16 2084  YT1JN DN9MRB +18 (x2)
152745 -14  558  YT1JN A93MO RR73
153115  -2  554  YT1JN RC6OU 73
115945  -3  764  YT1JN CR7BRV -14 (x2)

20m

UTC    dB Audio  Message
210415  -7 2445  YT1JN F5OYA/P JN13 (x6)
210645  -6 2044  BG7BVI YT1JN KN04 (x2)
210745  -5 2445  YT1JN F5OYA/P JN13 (x7)

CW

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

Explore CW reception at SO8OO

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