F4MVM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN29

Receiver-side FT8 activity involving F4MVM, decoded by SO8OO in southeastern Poland. 133 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-07-27.

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 133 FT8 messages attributed to F4MVM as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 20 m (31%) and 80 m (10%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (79%); the estimated median was -18 dB.

Overview

133
Messages attributed
9
UTC dates decoded
24
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 13 40m · 79 20m · 41
First attributed message: 2026-06-08
Last attributed message: 2026-07-27 07:53 UTC

Observed FT8 message patterns

Attributed sample
133 messages
Active dates
9 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-23 to -13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 105, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 4.

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 F4MVM 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 F4MVM

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
JN29 · 108 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,206 km (approx.)
Last such locator decoded
2026-07-27 07:53 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 UTCBandF4MVM S/NCounterpartCounterpart S/NMsgsCapture
08-08 20:01 40m - / -17 RN6MA -20 / - 2 Partial capture
08-08 19:54 40m - / -6 DH2RL -20 / - 3 ✓ Closing fragment
08-08 19:51 40m - / -10 SM7JKW -10 / - 3 ✓ Closing fragment
08-08 19:46 40m - / -12 F5MYH -22 / - 2 Partial capture
08-08 19:45 40m - / - ON5RJ -17 / - 2 ✓ Closing fragment
08-04 11:52 20m - / -5 UA3ZQN +1 / - 3 ✓ Closing fragment
08-02 06:11 40m - / -12 SQ8GBG -15 / - 6 ✓ Closing fragment
08-02 05:56 40m - / - SP1ADT -7 / - 2 Partial capture
08-02 05:55 40m - / -25 OZ6P -17 / - 2 Partial capture
08-02 05:23 40m - / - HA5KN -12 / - 2 ✓ Closing fragment
08-02 05:11 40m - / - F6FTB -15 / - 3 Partial capture
08-02 04:59 40m - / -9 HA3HX -14 / - 2 Partial capture
07-27 08:48 20m - / -6 GJ0KYZ -9 / - 2 ✓ Closing fragment
07-27 08:33 20m - / -20 F5RRS -6 / - 3 ✓ Closing fragment
07-27 07:50 20m - / - OE3EHS +9 / - 5 Partial capture
07-27 07:16 20m - / - OE3EHS +12 / - 2 Partial capture
07-27 06:57 20m - / - DL1R -1 / - 8 Partial capture
07-27 06:18 20m - / - EB3JT -14 / - 3 ✓ Closing fragment
07-27 06:16 20m - / -11 OD5KU -7 / - 3 ✓ Closing fragment
07-27 06:13 20m - / - EB3JT -11 / - 4 Partial capture
07-27 06:04 40m - / -12 DL9ZKL -11 / - 2 ✓ Closing fragment
07-27 05:37 40m - / +9 OE5ROR -5 / - 4 ✓ Closing fragment
07-26 06:17 40m - / -10 DM2BM -16 / - 2 ✓ Closing fragment
07-26 05:47 40m - / -24 9A1CC -17 / - 2 ✓ Closing fragment
07-26 05:22 40m - / - LZ3CB -7 / - 3 Partial capture
07-24 05:43 40m - / -3 OK6AB -15 / - 3 ✓ Closing fragment
07-23 19:57 80m - / - DO1FED -14 / - 7 Partial capture
07-23 19:57 80m -16 / +9 ON4KDT -11 / -10 5 ✓ Full exchange observed
07-23 19:54 80m -15 / -13 DO2XYZ -8 / -18 4 ✓ Full exchange observed
07-23 19:54 80m - / - OM1AN +14 / - 2 Partial capture
07-23 19:54 80m - / - DL3TC +4 / - 2 Partial capture
07-23 19:01 20m - / -18 RN6MA -3 / - 3 ✓ Closing fragment
07-23 18:55 20m - / -9 R6DZR -10 / - 2 Partial capture
07-23 18:43 20m - / -15 RN6MA -8 / - 4 Partial capture
07-23 18:33 20m - / -14 EA4T -8 / - 3 Partial capture
07-19 13:55 20m - / -4 <...> -9 / - 2 Partial capture
07-15 19:49 40m - / -10 F4MVM/P -10 / - 2 Partial capture
07-09 20:57 40m - / - DL1RAZ -12 / - 2 ✓ Closing fragment
07-09 20:23 40m - / -8 DL3JHK -15 / - 2 ✓ Closing fragment
07-09 19:28 20m - / - UR4QWW -19 / - 3 Partial capture
06-16 04:23 20m - / - SV2HXV +3 / - 4 ✓ Closing fragment
06-16 04:17 20m - / -10 SV1TDZ 0 / - 2 Partial capture
06-16 04:12 20m - / -12 R3RAQ +3 / - 3 ✓ Closing fragment
06-15 18:54 20m - / -10 YO2CK +7 / - 2 ✓ Closing fragment
06-15 18:51 20m - / -17 F1PPH -24 / - 3 ✓ Closing fragment
06-15 18:46 20m -12 / - EA5ET -14 / -13 5 ✓ Closing observed
06-15 18:37 20m -13 / - TA3ZGR - / -19 4 Partial capture
06-15 17:48 20m - / -6 F4NGC -7 / - 4 ✓ Closing fragment
06-14 06:54 20m - / -14 UA6YW +6 / - 2 Partial capture
06-14 06:15 20m - / - UR4QWW -3 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
194630 -23 1918  F4MVM F5MYH JN07
194630 -19 1387  F4MVM DH2RL JN68
194700 -21 1918  F4MVM F5MYH R-12
195100  -6 1385  F4MVM SM7JKW JO65 (x3)
195330 -18 1386  F4MVM DL1SRS 73
195430 -22 1386  F4MVM DH2RL JN68 (x3)
195830  -8  745  F4MVM DF3WI R+00
195930 -20 1834  F4MVM SP0DF JO73
200100 -20 1383  F4MVM RN6MA -17 (x2)
200200 -16 2008  F4MVM R2EN -14
20m 
UTC    dB Audio  Message
075130 +11 2541  F4MVM OE3EHS JN87 (x3)
075315 -21 1418  CQ F4MVM JN29
082730 -10 1419  F4MVM DJ0MAB JN49 (x2)
083330  -6 1942  F4MVM F5RRS JN36 (x3)
084830  -6  529  F4MVM GJ0KYZ -06 (x2)
113200 -15 2493  F4MVM IZ4JMA JN54
115200  +2  715  F4MVM UA3ZQN KO90 (x3)
80m 
UTC    dB Audio  Message
195700 -20  823  F4MVM DO1FED JO43
195715 -16 1354  ON4KDT F4MVM -10
195730 -18  822  F4MVM DO1FED JO43
195730 -12 1104  F4MVM ON4KDT R+09
195745 -17 1355  ON4KDT F4MVM RR73
195800  -7 1104  F4MVM ON4KDT 73
195800 -13  822  F4MVM DO1FED JO43
195815 -19 1354  CQ F4MVM JN29
195830 -14  822  F4MVM DO1FED JO43
195845 -20 1354  CQ F4MVM JN29
195900 -13  822  F4MVM DO1FED JO43
195915 -17 1354  CQ F4MVM JN29 (x2)
200100 -14  822  F4MVM DO1FED JO43 (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.

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