F4FHR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN06

Receiver-side FT8 activity involving F4FHR, decoded by SO8OO in southeastern Poland. 155 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-09-12.

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 155 FT8 messages attributed to F4FHR as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (84%), followed by 60 m (12%) and 20 m (4%). Most decodes (88%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (63%); the estimated median was -10 dB.

Overview

155
Messages attributed
6
UTC dates decoded
16
Active 15-min windows
-10 dB
Estimated median S/N

Bands

60m · 19 40m · 130 20m · 6
First attributed message: 2026-06-19
Last attributed message: 2026-09-12 06:54 UTC

Observed FT8 message patterns

Attributed sample
155 messages
Active dates
6 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-15 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 98, strong (≥ -8 dB) 44.

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 F4FHR 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 F4FHR

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
JN06 · 96 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,581 km (approx.)
Last such locator decoded
2026-09-12 06:54 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 UTCBandF4FHR S/NCounterpartCounterpart S/NMsgsCapture
09-12 06:53 40m -9 / - KG6PH - / - 3 Partial capture
09-12 06:42 40m -10 / - KG6PH - / - 2 Partial capture
09-12 06:40 40m -18 / - KR4LQH - / -13 2 Partial capture
09-12 06:39 40m -20 / -10 F4BYA -6 / - 3 ✓ Closing observed
09-12 06:38 40m -17 / -2 F5RRS -2 / -2 4 ✓ Full exchange observed
09-11 18:52 40m - / +10 DF6DM -4 / - 2 Partial capture
09-11 18:50 40m -6 / +4 DJ7BU -5 / +1 5 ✓ Full exchange observed
09-11 18:43 40m -8 / - R6DJR - / -14 2 ✓ Closing fragment
09-11 18:35 40m -9 / -15 RW1AI -6 / - 4 ✓ Closing observed
09-11 18:30 40m -8 / -14 S53AK 0 / -3 5 ✓ Full exchange observed
09-11 18:07 40m - / -10 F5PSP -5 / - 3 ✓ Closing fragment
09-11 18:00 40m - / - UV5ENO -2 / - 2 Partial capture
09-11 17:57 40m -10 / - EB1ESK - / -13 2 ✓ Closing fragment
09-11 17:57 40m -10 / +3 DG4FFF -10 / -12 6 ✓ Full exchange observed
09-11 17:55 40m -10 / -18 RN6MA -7 / -13 6 ✓ Full exchange observed
09-11 17:52 40m -11 / -10 E70SZ +4 / -10 5 ✓ Full exchange observed
09-11 17:50 40m -10 / - F4JNI - / -10 2 ✓ Closing fragment
09-11 17:46 40m -11 / -6 DL6CMF 0 / -9 3 Partial capture
09-11 17:38 40m -15 / - R3DHP -10 / -11 8 ✓ Closing observed
09-11 17:35 40m -16 / - UA9SAV +5 / -7 3 Partial capture
09-11 17:31 40m -10 / - GM5DNA - / -13 2 ✓ Closing fragment
09-11 16:44 40m -16 / - II9IAGM - / -13 2 Partial capture
09-11 16:41 40m -11 / - F1IQH - / -4 3 Partial capture
08-27 14:00 20m -9 / -9 G4UJS +6 / -13 6 ✓ Full exchange observed
08-27 14:00 20m -9 / -4 PC9F +7 / - 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
063800  +0  525  F4FHR F5RRS JN36
063800  -3 1920  F4FHR DL8WEM JN48
063815 -17 1921  F5RRS F4FHR -02
063830  -1  525  F4FHR F5RRS R-02 (x2)
063930  -6 2982  F4FHR F4BYA JN19 (x2)
064015 -20 1921  F4BYA F4FHR RR73
064045 -19 1921  KR4LQH F4FHR -13 (x2)
064245  -9 2555  KG6PH F4FHR JN06 (x5)
20m 
UTC    dB Audio  Message
085645 -16 2029  RI1FJL F4FHR JN06
135945 -15 2026  CQ F4FHR JN06
140000  +4  760  F4FHR PC9F JO32
140000 +10 2027  F4FHR G4UJS -09
140030 +11  760  F4FHR PC9F R-04
140045  -9 2026  PC9F F4FHR RR73
140100  +7  760  F4FHR PC9F 73
140100  +4 2028  F4FHR G4UJS -14
140215  -9 2026  G4UJS F4FHR R-13 (x2)
140300  +5 2026  F4FHR G4UJS RR73
140315 -10 2026  G4UJS F4FHR 73

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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