F4HJO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN09

Receiver-side FT8 activity involving F4HJO, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-09-19.

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 27 FT8 messages attributed to F4HJO as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (41%), followed by 40 m (37%) and 20 m (22%). Several six-hour UTC windows tied for the largest share (78%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

27
Messages attributed
5
UTC dates decoded
11
Active 15-min windows
-8 dB
Estimated median S/N

Bands

80m · 11 40m · 10 20m · 6
First attributed message: 2026-08-23
Last attributed message: 2026-09-19 01:48 UTC

Observed FT8 message patterns

Attributed sample
27 messages
Active dates
5 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-17 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 14.

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 F4HJO 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 F4HJO

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
JN09 · 8 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,491 km (approx.)
Last such locator decoded
2026-09-13 04:58 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 UTCBandF4HJO S/NCounterpartCounterpart S/NMsgsCapture
09-19 01:48 40m +2 / - IS0OZK - / -3 2 Partial capture
09-13 05:50 80m - / - SP6FME +11 / - 3 Partial capture
09-13 05:49 80m -16 / - VP2MAA - / -2 2 ✓ Closing fragment
09-13 05:21 40m -14 / - KI4NPG - / -4 2 ✓ Closing fragment
09-13 05:20 40m -14 / -18 CN8NS -18 / +1 3 ✓ Full exchange observed
09-13 04:58 40m -14 / +3 D44TWO -24 / - 2 Partial capture
09-13 04:38 40m - / - IU8RFW -9 / - 4 Partial capture
09-13 04:37 40m - / -11 OH3OJ -7 / - 2 Partial capture
09-13 04:37 40m - / -7 YO4NF -8 / - 2 Partial capture
09-13 04:36 40m -6 / - D2ACE - / -15 2 ✓ Closing fragment
09-12 05:02 80m - / - 9A4ZM +8 / - 2 Partial capture
09-12 05:02 80m - / - EA3HMM -7 / - 3 Partial capture
09-12 05:01 80m -16 / - MW7TTA - / -8 2 ✓ Closing fragment
09-12 04:58 40m - / - UR4QWW -13 / - 3 Partial capture
09-12 04:58 40m - / -5 IK4TVP -1 / - 6 Partial capture
09-12 02:33 40m - / -13 EX7CQ -12 / - 2 ✓ Closing fragment
09-08 03:35 80m -7 / - CT2GQA - / - 4 Partial capture
09-08 03:27 80m -2 / - CT2GQA - / -2 3 Partial capture
08-23 09:01 20m +8 / - SQ8AA - / -17 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
043745 -10 2221  F4HJO YO4NF -07
043745  -7  664  F4HJO OH3OJ -11
043815 -12 2221  F4HJO IU8RFW JN70 (x4)
045800 -14 2150  D44TWO F4HJO JN09
045945 -24 2149  F4HJO D44TWO +03
052015 -17 1911  CN8NS F4HJO +01
052030 -18 2140  F4HJO CN8NS R-18
052045 -10 1911  CN8NS F4HJO RR73
052115 -14 1911  KI4NPG F4HJO -04 (x2)
014815  +2 2084  IS0OZK F4HJO -03 (x2)
80m 
UTC    dB Audio  Message
033600  -6 1305  CT2GQA F4HJO JN09 (x3)
050145 -10 1513  MW7TTA F4HJO -08 (x2)
050230  -8  312  F4HJO EA3HMM JN00
050230  +9 1509  F4HJO 9A4ZM JN86
050300  -8  312  F4HJO EA3HMM JN00
050300  +8 1510  F4HJO 9A4ZM JN86
050330  -4  312  F4HJO EA3HMM JN00
054945 -17 1193  VP2MAA F4HJO -02 (x2)
055030 +11 1194  F4HJO SP6FME JO90 (x3)
20m 
UTC    dB Audio  Message
085900 -17 1734  F4HJO DK4RH JO31
085915  -7 1731  CQ F4HJO JN09 (x2)
090000  +3 1731  F4HJO YO5PHL KN16
090100  +5 1731  SQ8AA F4HJO -17 (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.

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