F4MVU — 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: France Most frequent locator attributed to this token: JN24

Receiver-side FT8 activity involving F4MVU, decoded by SO8OO in southeastern Poland. 1,071 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-21.

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 1,071 FT8 messages attributed to F4MVU as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 20 m (45%) and 80 m (3%). Most decodes (72%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

1,071
Messages attributed
20
UTC dates decoded
123
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-06-09
Last attributed message: 2026-10-21 21:32 UTC

Observed FT8 message patterns

Attributed sample
1,071 messages
Active dates
20 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-19 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 247, moderate (-15 to -9 dB) 374, strong (≥ -8 dB) 450.

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.

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 F4MVU

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
JN24 · 755 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,401 km (approx.)
Last such locator decoded
2026-10-21 21:32 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 UTCBandF4MVU S/NCounterpartCounterpart S/NMsgsCapture
10-21 21:31 40m -8 / - IT9ACJ/QRP - / - 2 Partial capture
10-21 21:30 40m -12 / - HF50HSP - / - 2 Partial capture
10-21 21:28 40m -9 / - SP9TBT - / -18 4 ✓ Closing fragment
10-21 21:26 40m -1 / - RA4PIS - / - 3 Partial capture
10-21 21:24 40m -8 / -16 MM7FTH -11 / - 3 Partial capture
10-21 21:24 40m -6 / - YT1ZQ - / -4 4 Partial capture
10-21 21:22 40m -10 / - IV3AZV - / - 2 Partial capture
10-21 21:20 40m -6 / - UR5QW - / -6 3 ✓ Closing fragment
10-21 21:17 40m +3 / +3 M7SDQ -11 / -11 10 ✓ Full exchange observed
10-21 21:15 40m -8 / - IT9ACJ/QRP - / - 3 Partial capture
10-21 21:13 40m -8 / - SP9TBT - / - 3 Partial capture
10-21 21:12 40m -12 / - OE1PHS - / - 3 Partial capture
10-21 21:10 40m -7 / - R4ADJ - / - 3 Partial capture
10-21 21:09 40m +1 / - UR7EC - / - 3 Partial capture
10-21 21:07 40m -4 / - M1DBW -6 / -17 6 ✓ Closing observed
10-21 21:05 40m +5 / -24 GM5RDX -12 / - 3 Partial capture
10-21 21:04 40m -10 / - SV1TNK - / - 2 Partial capture
10-21 21:02 40m -5 / - HA9GKL - / -11 3 ✓ Closing fragment
10-21 21:00 40m -12 / - SP6AB - / -4 2 Partial capture
10-21 20:58 40m -8 / - OR82CLM - / - 3 Partial capture
10-21 20:45 40m -5 / - SQ9BSA - / -9 3 ✓ Closing fragment
10-21 20:44 40m -10 / - US2YW - / -10 2 ✓ Closing fragment
10-21 20:43 40m -4 / - RA2FCF - / -5 2 ✓ Closing fragment
10-21 20:40 40m -6 / - RN7A - / - 3 Partial capture
10-21 20:38 40m +2 / - SP9LKN - / -17 4 ✓ Closing fragment
10-21 20:36 40m -7 / - SQ9SET - / - 3 Partial capture
10-21 20:35 40m -3 / -8 G4FHL -6 / -8 5 ✓ Full exchange observed
10-21 20:32 40m -7 / -12 M8KUU -5 / - 2 Partial capture
10-21 20:30 40m -6 / - Z33B - / - 3 Partial capture
10-21 20:28 40m -6 / - OZ3MC - / -4 4 ✓ Closing fragment
10-21 20:26 40m -13 / -11 SV1DKR -17 / -18 5 ✓ Full exchange observed
10-21 20:25 40m -1 / - F1VEO - / - 3 Partial capture
10-21 20:23 40m -13 / - ER1CW - / - 3 Partial capture
10-21 20:22 40m -8 / - SQ9SET - / - 2 Partial capture
10-21 20:20 40m -8 / -23 LZ2ZD -21 / -9 5 Partial capture
10-21 20:18 40m -6 / - UT5VQ - / -10 4 ✓ Closing fragment
10-21 20:16 40m 0 / - SP9CVY - / -4 3 ✓ Closing fragment
10-21 20:15 40m +4 / - SP7ROH - / -8 3 ✓ Closing fragment
10-21 20:14 40m -5 / -4 EA1ERJ 0 / -5 3 ✓ Full exchange observed
10-21 20:12 40m -8 / - YT1ZQ - / - 3 Partial capture
10-21 20:09 40m -10 / -3 M0ABG -16 / - 3 ✓ Closing observed
10-21 20:07 40m -4 / - SQ9SET - / - 3 Partial capture
10-21 20:06 40m -10 / - IT9ACJ/QRP - / - 3 Partial capture
10-21 20:03 40m -5 / - ER3BN - / - 3 Partial capture
10-21 20:01 40m +3 / - OM8GT - / -12 3 ✓ Closing fragment
10-21 20:00 40m -3 / - SP9MOC - / -7 3 ✓ Closing fragment
10-21 19:58 40m -2 / - PD4DX - / - 3 Partial capture
10-21 19:54 40m -8 / - DH1OME - / -5 5 Partial capture
10-21 19:53 40m -11 / -6 PD2TX -2 / -18 5 ✓ Full exchange observed
10-21 19:50 40m +3 / - PA2DX - / -14 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
121115  -7  694  F4MVU SP3IPA -10
40m
UTC    dB Audio  Message
212515  -6 1600  YT1ZQ F4MVU R-04
212530 -14  790  F4MVU MM7FTH -16
212545  -5 1601  YT1ZQ F4MVU R-04 (x2)
212645  +1  902  RA4PIS F4MVU JN24 (x3)
212815 -10 1746  SP9TBT F4MVU JN24 (x4)
213015  -9 1391  HF50HSP F4MVU JN24 (x2)
213145 -11 1484  IT9ACJ/QRP F4MVU JN24 (x2)
80m
UTC    dB Audio  Message
184330 -20 1247  YO2UKG F4MVU 73
184500 -24 1820  IU3WOZ F4MVU 73
184700 -22 2156  DL3KWF F4MVU JN24
184715  +5 2156  F4MVU DL3KWF -16
184730 -24 2156  DL3KWF F4MVU R-14
184745  +1 2156  F4MVU DL3KWF RR73
184800 -24 2156  DL3KWF F4MVU 73
184845  -6 1162  F4MVU DL4RE -01
185015  +7 1293  F4MVU DO2BBC R-07
185100  -9  569  RK6C F4MVU JN24 (x2)
185430 +15  880  F4MVU UR5SI -17
185445 -17  880  UR5SI F4MVU R-05
185500 +14  880  F4MVU UR5SI RRR
185515 -14  880  UR5SI F4MVU 73
20m
UTC    dB Audio  Message
190515  -5 1512  BG0FQU F4MVU JN24
190545  -8 1710  HB10GBT F4MVU JN24 (x6)
190900  +4 2475  OK2MKJ F4MVU JN24 (x2)
191200  +3 1458  M1DBW F4MVU JN24 (x2)
191300  +2 1754  IR7MGGC F4MVU JN24
191315 -12 1754  F4MVU IR7MGGC -05
191330  +6 1754  IR7MGGC F4MVU R-03 (x2)

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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