HL5JYS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Republic of Korea Most frequent locator attributed to this token: PM45

Receiver-side FT8 activity involving HL5JYS, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-26.

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 6 FT8 messages attributed to HL5JYS as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.

Overview

6
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-15 dB
Estimated median S/N

Bands

20m · 6
First attributed message: 2026-08-26
Last attributed message: 2026-08-26 20:24 UTC

Observed FT8 message patterns

Attributed sample
6 messages
Active dates
1 UTC dates
Estimated median S/N
-15 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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 HL5JYS in decoded directed-looking exchanges:

Most frequent locator attributed to HL5JYS

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
PM45
SO8OO receiver locator
KN09VW
Locator-centre separation
8,137 km (approx.)
Last such locator decoded
2026-08-26 20:21 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 UTCBandHL5JYS S/NCounterpartCounterpart S/NMsgsCapture
09-01 16:14 40m - / -19 RA4Y -8 / - 2 ✓ Closing fragment
08-28 22:55 20m - / -12 IK4HLQ +10 / - 4 ✓ Closing fragment
08-28 21:27 20m - / - F5RRS +1 / - 5 Partial capture
08-28 21:26 20m - / -15 EC3A +3 / - 2 ✓ Closing fragment
08-28 21:17 20m - / -19 EA8UP +19 / - 4 ✓ Closing fragment
08-28 20:28 20m - / -13 IT9ACJ -4 / - 2 ✓ Closing fragment
08-28 19:10 20m - / - OK1TI -14 / - 2 Partial capture
08-28 19:06 20m - / - OK1TI -17 / - 3 Partial capture
08-28 19:06 20m - / -22 YO7LPM -3 / - 3 Partial capture
08-28 15:51 20m - / - IX1HPN -5 / - 3 Partial capture
08-28 14:37 20m - / -14 R9OFU -14 / - 2 ✓ Closing fragment
08-28 14:29 20m - / -12 4X5MZ -6 / - 4 ✓ Closing fragment
08-28 14:17 20m - / - RW3ZC -4 / - 2 ✓ Closing fragment
08-28 14:09 20m - / -12 RU3QR -12 / - 4 ✓ Closing fragment
08-28 13:54 20m - / -19 RA6FSV -11 / - 2 Partial capture
08-28 13:44 20m - / -3 RG5A +9 / - 6 Partial capture
08-28 12:39 20m - / -21 R4FV +4 / - 2 ✓ Closing fragment
08-28 12:36 20m - / -12 RC6OG +3 / - 4 ✓ Closing fragment
08-26 21:58 20m - / -14 SV5BYP -1 / - 3 ✓ Closing fragment
08-26 20:24 20m -17 / -14 OE9GWV +1 / -14 5 ✓ Full exchange observed
08-26 20:20 20m -13 / - US5ZCO - / -9 3 ✓ Closing fragment
08-26 17:07 20m - / - PI4TX -8 / - 2 Partial capture
08-26 16:58 20m - / -24 LA2GCA +1 / - 5 ✓ Closing fragment
08-26 16:09 20m - / - M9TMC -10 / - 3 Partial capture
08-26 14:21 20m - / -16 M7VME -1 / - 3 Partial capture
08-26 14:03 20m - / -19 R7DX +9 / - 3 ✓ Closing fragment
08-26 13:39 20m - / - RL3K -2 / - 2 Partial capture
08-26 13:36 20m - / -23 IQ4JO 0 / - 3 ✓ Closing fragment
08-26 13:19 20m - / - RZ4FWA +1 / - 2 Partial capture
08-25 12:10 20m - / - R7DX 0 / - 5 Partial capture
08-25 12:10 20m - / -20 RU3QR -17 / - 9 Partial capture
08-24 05:07 20m - / -13 HC2GRC -8 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
205330  -1 1674  HL5JYS S59A JN76
161245  -9  705  HL5JYS TA3GO -18
161430  -8 1476  HL5JYS RA4Y -19 (x2)
20m 
UTC    dB Audio  Message
211745 +19  406  HL5JYS EA8UP -19 (x3)
212645  +7  584  HL5JYS EC3A -15 (x2)
212745  -1 2013  HL5JYS F5RRS JN36 (x5)
225530 +11 1969  HL5JYS IK4HLQ -12 (x4)
225830 -10 1915  HL5JYS IK6DLK 73

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