YL3NJ — 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: Latvia Most frequent locator attributed to this token: KO36

Receiver-side FT8 activity involving YL3NJ, decoded by SO8OO in southeastern Poland. 57 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-10-01.

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 57 FT8 messages attributed to YL3NJ as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (75%), followed by 60 m (12%) and 160 m (7%). Several six-hour UTC windows tied for the largest share (96%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was +2 dB.

Overview

57
Messages attributed
8
UTC dates decoded
12
Active 15-min windows
+2 dB
Estimated median S/N

Bands

160m · 4 80m · 43 60m · 7 40m · 2 10m · 1
First attributed message: 2026-07-19
Last attributed message: 2026-10-01 17:53 UTC

Observed FT8 message patterns

Attributed sample
57 messages
Active dates
8 UTC dates
Estimated median S/N
+2 dB
Estimated 10th-90th percentile
-12 to +12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 43.

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 YL3NJ in decoded directed-looking exchanges:

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 YL3NJ

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
KO36 · 16 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
807 km (approx.)
Last such locator decoded
2026-10-01 17:49 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 UTCBandYL3NJ S/NCounterpartCounterpart S/NMsgsCapture
10-01 17:50 80m - / -4 OK1AY +10 / - 4 ✓ Closing fragment
10-01 17:50 80m +6 / - RA3ICA +2 / - 8 Partial capture
10-01 17:49 80m -2 / - R4FDK - / +6 2 ✓ Closing fragment
10-01 17:49 80m -1 / -15 F4FSY -3 / -7 5 ✓ Full exchange observed
10-01 17:13 80m +2 / -7 R2EA 0 / - 4 ✓ Full exchange observed
10-01 17:11 80m -3 / -8 DK7ZT +6 / -6 4 ✓ Full exchange observed
10-01 17:10 80m -2 / -5 PA3FPQ +1 / +6 5 ✓ Full exchange observed
09-21 18:11 60m - / - SP5JMA +4 / - 2 Partial capture
09-02 21:04 60m -12 / -10 G0AZH -18 / - 3 Partial capture
09-02 21:01 60m - / -12 HA7TM +20 / - 5 ✓ Closing fragment
09-02 21:00 60m - / -7 OH6FSO -2 / - 2 ✓ Closing fragment
09-02 20:55 60m -12 / -6 DD6ZV +8 / +10 7 ✓ Full exchange observed
09-02 20:55 60m - / - F5RAV -10 / - 4 Partial capture
09-02 20:55 60m -11 / -6 ON7GB +1 / - 10 ✓ Closing observed
09-02 20:55 60m - / - ON7KEI -14 / - 4 Partial capture
09-02 20:45 160m -14 / - UB3YCK - / -7 2 ✓ Closing fragment
09-02 20:41 160m -11 / -13 DM3OA -12 / +1 3 ✓ Full exchange observed
09-02 20:39 160m - / -12 RN1ON -14 / - 3 ✓ Closing fragment
09-02 20:06 160m - / -15 OH6B -8 / - 2 Partial capture
09-02 19:52 160m - / -20 UA3ZUX +7 / - 3 ✓ Closing fragment
08-29 04:21 40m - / -2 DL3IAK -12 / - 2 ✓ Closing fragment
08-28 05:11 20m - / -13 F4BYA -11 / - 2 ✓ Closing fragment
08-24 18:57 80m +8 / -14 YT6AAA +9 / - 5 ✓ Closing observed
08-24 18:55 80m +4 / -4 R4HHN -7 / +8 5 ✓ Full exchange observed
08-24 18:54 80m - / - DA6MS 0 / - 6 Partial capture
08-24 18:54 80m +2 / -22 DO2YJG -18 / -20 7 Partial capture
08-24 18:54 80m +7 / -19 OZ6YN -6 / - 9 ✓ Closing observed
08-24 18:54 80m - / - UA3UBV -8 / - 2 Partial capture
08-24 18:53 80m - / - DL7MD -8 / - 2 Partial capture
08-24 18:52 80m -4 / +9 RA2FU -7 / +3 5 ✓ Full exchange observed
08-24 18:50 80m - / - UA3UBV -16 / - 2 Partial capture
08-24 18:49 80m - / - HF5A +5 / - 3 ✓ Closing fragment
08-20 04:20 40m -9 / -3 UR1CCT +13 / - 5 ✓ Full exchange observed
08-16 20:49 10m - / - DN9OPA -16 / - 5 Partial capture
08-16 20:49 10m - / - DL3NGN -16 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
175030  +0 1923  YL3NJ RA3ICA KO77
175030  +9 1442  YL3NJ OK1AY -04
175030  -4 1809  YL3NJ F4FSY -15
175030  +6  895  YL3NJ DL6UM JO60
175045  +2  683  F4FSY YL3NJ R-07
175100  +1 1923  YL3NJ RA3ICA KO77
175115  -4  683  F4FSY YL3NJ 73
175130  +4 1923  YL3NJ RA3ICA KO77
175130 +12 1116  YL3NJ OK1AY -04
175200  +0 1923  YL3NJ RA3ICA KO77
175200  +7 1116  YL3NJ OK1AY RR73
175230  +2 1923  YL3NJ RA3ICA KO77
175245  +6  683  RA3ICA YL3NJ +20
175300  -1 1923  YL3NJ RA3ICA KO77
175345  +8  683  R6FX YL3NJ RR73
160m 
UTC    dB Audio  Message
195245  +7 2545  YL3NJ UA3ZUX KO90 (x3)
195715  +9 2554  YL3NJ OH6RE KP22
200615  -8  551  YL3NJ OH6B KP33 (x2)
203915  -9 1094  YL3NJ RN1ON LP04 (x3)
204145 -10 1931  YL3NJ DM3OA -13
204200 -11  551  DM3OA YL3NJ R+01
204215 -15 1931  YL3NJ DM3OA RR73
204545 -14  551  UB3YCK YL3NJ R-07 (x2)
193730 -18  857  CQ YL3NJ KO36
60m 
UTC    dB Audio  Message
210015  -1 2805  YL3NJ OH6FSO -07 (x2)
210130  -9  559  CQ YL3NJ KO36
210145 +19  559  YL3NJ HA7TM JN97 (x5)
210415 -21 1826  YL3NJ G0AZH R-10 (x2)
210500 -12  559  G0AZH YL3NJ RRR
181130 -10  878  CQ YL3NJ KO36
181145  +9  668  YL3NJ SP5JMA KO02
181145  -8 1900  YL3NJ IK4CBO JN54
181215  +0  668  YL3NJ SP5JMA KO02
40m 
UTC    dB Audio  Message
042030  -9 1116  CQ YL3NJ KO36
042045  +9  768  YL3NJ UR1CCT KN69
042100  -9 1117  UR1CCT YL3NJ +18
042115 +15  768  YL3NJ UR1CCT R-03 (x3)
042145 -13  399  YL3NJ DL3IAK R-02 (x2)
20m 
UTC    dB Audio  Message
051115 -14 2715  YL3NJ F4BYA R-13 (x2)
10m 
UTC    dB Audio  Message
204900 -13 1091  YL3NJ DL3NGN JN59
204930 -16 2391  YL3NJ DN9OPA JN38
204930 -19 1091  YL3NJ DL3NGN JN59
205000 -17 2391  YL3NJ DN9OPA JN38 (x4)

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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