YO3HPC — 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: Romania Most frequent locator attributed to this token: KN37

Receiver-side FT8 activity involving YO3HPC, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-15 and 2026-08-17.

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 15 FT8 messages attributed to YO3HPC 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 (100%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

15
Messages attributed
2
UTC dates decoded
4
Active 15-min windows
-18 dB
Estimated median S/N

Bands

40m · 15
First attributed message: 2026-08-15
Last attributed message: 2026-08-17 20:17 UTC

Observed FT8 message patterns

Attributed sample
15 messages
Active dates
2 UTC dates
Estimated median S/N
-18 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 3, 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 YO3HPC in decoded directed-looking exchanges:

Most frequent locator attributed to YO3HPC

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
KN37 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
468 km (approx.)
Last such locator decoded
2026-08-17 20:10 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 UTCBandYO3HPC S/NCounterpartCounterpart S/NMsgsCapture
08-17 23:08 40m - / -16 DK7ZT -20 / - 3 ✓ Closing fragment
08-17 23:05 40m - / -12 DL3MIB +4 / - 3 ✓ Closing fragment
08-17 20:35 40m - / -12 IK4LZH -6 / - 2 Partial capture
08-17 20:31 40m - / -4 YO9ZIP -14 / - 2 ✓ Closing fragment
08-17 20:23 40m - / -11 SP6JIU +22 / - 2 ✓ Closing fragment
08-17 20:17 40m - / -18 9A4ZM -13 / - 3 Partial capture
08-17 20:16 40m -24 / -6 UW5IM +1 / - 4 ✓ Closing observed
08-17 20:08 40m -23 / -4 OE1KLA -1 / -17 6 ✓ Full exchange observed
08-15 21:52 40m - / -5 OK8DJ -12 / - 3 ✓ Closing fragment
08-15 21:44 40m - / - 9A4ZM -8 / - 4 Partial capture
08-15 21:41 40m - / -12 IU5AWQ -8 / - 4 ✓ Closing fragment
08-15 21:35 40m - / -11 IU2HUQ -16 / - 2 Partial capture
08-15 21:35 40m - / -3 RY3F -2 / - 3 Partial capture
08-15 20:36 20m - / -16 M0BEW -5 / - 6 ✓ Closing fragment
08-15 20:09 40m - / -14 YO4GIY -14 / - 2 ✓ Closing fragment
08-15 19:47 20m - / -17 F4ACR 0 / - 4 ✓ Closing fragment
08-15 19:30 40m - / - US2YW 0 / - 3 Partial capture
08-15 19:28 40m - / -7 IU2HUQ -20 / - 2 Partial capture
08-15 19:26 40m -18 / +1 RN6MA -8 / -11 2 Partial capture
08-15 19:23 40m -18 / - SV1DKR - / -18 4 ✓ Closing fragment
08-15 19:08 20m - / -5 LA8ENA -11 / - 2 ✓ Closing fragment
08-15 19:04 40m -18 / -11 R6FX -6 / - 7 ✓ Closing observed
08-15 19:02 40m - / - UA4FKT -5 / - 2 Partial capture
08-15 19:01 40m - / +6 LZ3HG -12 / - 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
201830 -13 1663  YO3HPC 9A4ZM R-18
202330 +25 2794  YO3HPC SP6JIU -11 (x2)
203145 -13 1019  YO3HPC YO9ZIP -04 (x2)
203515  -5  437  YO3HPC IK4LZH -12 (x3)
223015 -22 1122  YO3HPC SV9QWC RR73
230500  +4  919  YO3HPC DL3MIB JN57 (x3)
230815 -21 1906  YO3HPC DK7ZT RR73 (x3)
20m 
UTC    dB Audio  Message
190845 -13 2132  YO3HPC LA8ENA -05 (x2)
194230 -11  256  YO3HPC 4X1UF -11
194730  -4 2451  YO3HPC F4ACR IN96 (x4)
203630 -10 1813  YO3HPC M0BEW -16 (x6)

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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