YL3RK — 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: KO35

Receiver-side FT8 activity involving YL3RK, decoded by SO8OO in southeastern Poland. 1,033 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-26.

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 1,033 FT8 messages attributed to YL3RK as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 20 m (39%) and 10 m (3%). The busiest six-hour window was 17:00-23:00 UTC, containing 49% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

1,033
Messages attributed
27
UTC dates decoded
109
Active 15-min windows
-7 dB
Estimated median S/N

Bands

40m · 594 20m · 407 10m · 32
First attributed message: 2026-06-13
Last attributed message: 2026-10-26 08:18 UTC

Observed FT8 message patterns

Attributed sample
1,033 messages
Active dates
27 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-18 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 172, moderate (-15 to -9 dB) 276, strong (≥ -8 dB) 585.

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 YL3RK 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 YL3RK

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
KO35 · 503 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
711 km (approx.)
Last such locator decoded
2026-10-26 08:18 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 UTCBandYL3RK S/NCounterpartCounterpart S/NMsgsCapture
11-02 19:31 40m - / -18 F8MRQ -6 / - 5 ✓ Closing fragment
11-02 19:29 40m - / -7 M0BEW -12 / - 2 ✓ Closing fragment
11-02 19:25 40m - / - CT7BLY -22 / - 2 Partial capture
11-02 19:25 40m - / - G0RVY -2 / - 2 Partial capture
11-02 19:23 40m - / -14 F4MGP -12 / - 7 Partial capture
10-26 08:16 40m -3 / - M0WOO - / -13 4 ✓ Closing fragment
10-26 08:12 40m -4 / - P4/WE9V - / - 2 Partial capture
10-26 08:02 40m -1 / - P4/WE9V - / - 10 Partial capture
10-26 08:01 40m -5 / - SM3JBO - / -2 2 Partial capture
10-26 07:58 40m -12 / - R7KEO -22 / -19 3 ✓ Closing observed
10-26 07:52 40m -6 / - RA5BQ - / 0 3 ✓ Closing fragment
10-26 07:51 40m - / - F1MXE -9 / - 5 Partial capture
10-26 07:50 40m -4 / -15 G0HSP -18 / -19 5 ✓ Full exchange observed
10-26 07:48 40m -8 / - SP5DUJ - / -12 3 ✓ Closing fragment
10-26 07:44 40m -3 / +1 DF7FZ +5 / -1 6 ✓ Full exchange observed
10-26 07:38 40m -3 / - F1POK - / -24 5 ✓ Closing fragment
10-26 07:35 40m +3 / - UR0UF +1 / +3 4 ✓ Closing observed
10-26 07:33 40m -1 / -9 DL1PAB -6 / -8 6 ✓ Full exchange observed
10-26 07:28 40m -6 / -5 DL6UCK -14 / -11 11 ✓ Full exchange observed
10-26 07:28 40m -6 / -5 GJ0KYZ -17 / -11 4 ✓ Full exchange observed
10-26 07:25 40m +1 / -11 UR5VPR -8 / -11 8 ✓ Full exchange observed
10-25 22:45 40m - / - EA5ET -2 / - 2 Partial capture
10-25 22:26 40m - / - EA7L -12 / - 2 Partial capture
10-25 22:12 40m - / -30 DL1OBF -17 / - 2 Partial capture
10-25 22:11 40m - / +2 OS7P -14 / - 3 Partial capture
10-25 22:09 40m - / - EA5AQL -12 / - 3 Partial capture
10-25 09:08 40m - / - OH3MB -8 / - 4 Partial capture
10-25 09:07 40m -9 / - OK1BID -16 / -11 8 ✓ Closing observed
10-25 09:05 40m -10 / - DL1THB - / +2 3 ✓ Closing fragment
10-25 09:01 40m -9 / - R6ZL - / 0 3 ✓ Closing fragment
10-25 08:59 40m +7 / - PA4BEN - / -19 3 ✓ Closing fragment
10-25 08:54 40m +2 / - YL3AUR -6 / 0 6 ✓ Closing observed
10-24 23:31 40m - / -20 2E0ROJ -18 / - 4 Partial capture
10-24 22:43 40m - / -9 ON1JP -20 / - 3 Partial capture
10-24 22:41 40m - / - F5NNN -7 / - 6 Partial capture
10-23 20:37 40m - / -8 EA7ESH -12 / - 2 Partial capture
10-23 20:33 40m - / -13 TA2ED -12 / - 2 ✓ Closing fragment
10-23 20:31 40m - / - EA3BBA -2 / - 2 Partial capture
10-23 20:25 40m - / -13 EA8BIA -17 / - 5 ✓ Closing fragment
10-23 20:16 40m - / -16 TA2ED -12 / - 3 Partial capture
10-23 20:11 40m - / -7 F1PBZ +8 / - 3 Partial capture
10-23 20:04 40m - / -8 EA1KCN -11 / - 3 ✓ Closing fragment
10-23 20:04 40m - / -21 ON2BCB -4 / - 7 Partial capture
10-23 20:04 40m - / - ON8FW -9 / - 4 Partial capture
10-15 22:59 40m - / 0 PG7R -7 / - 8 ✓ Closing fragment
10-15 22:59 40m - / -11 F3CJ -16 / - 4 ✓ Closing fragment
10-15 22:56 40m - / 0 R7BN -7 / - 3 ✓ Closing fragment
10-15 22:55 40m - / - F3CJ -14 / - 4 Partial capture
10-15 22:52 40m - / +9 IK2ZJR +5 / - 3 ✓ Closing fragment
10-15 22:49 40m - / -4 N0BFQ -3 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
192500  -9 1741  YL3RK F4MGP R-14
192530  -3  778  YL3RK G0RVY JO01
192530  -6 1741  YL3RK F4MGP R-14
192530 -19 1892  YL3RK CT7BLY IM67
192600  -1  778  YL3RK G0RVY JO01
192600 -14 1741  YL3RK F4MGP R-14 (x2)
192630 -24 1891  YL3RK CT7BLY IM67
192900 -12 1890  YL3RK M0BEW -07 (x2)
193130  -9 1892  YL3RK F8MRQ JN17 (x5)
60m 
UTC    dB Audio  Message
185000  -8  636  YL3RK IV3DSG JN66 (x3)
20m 
UTC    dB Audio  Message
170445  -4 2737  YL3RK RZ3Z/P KN84
175430  -8 1550  YL3RK F4NBB -10 (x3)
175630  -4 1618  YL3RK IU4OKS JN44
175630 -13 2102  YL3RK EP2AES LM55
175730  -3 1550  YL3RK F4NBB -10
175730 -10 1652  YL3RK EA3CY JN00 (x3)
175900  +1 2445  YL3RK M0BXF IO83 (x2)
180000 +11 1755  YL3RK GJ0KYZ -11 (x2)
182630  -1 1564  YL3RK F4MUD -02

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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