F4CVQ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN38

Receiver-side FT8 activity involving F4CVQ, decoded by SO8OO in southeastern Poland. 435 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-20.

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 435 FT8 messages attributed to F4CVQ as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (66%), followed by 20 m (33%) and 10 m (1%). Most decodes (74%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was +1 dB.

Overview

435
Messages attributed
31
UTC dates decoded
65
Active 15-min windows
+1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-15
Last attributed message: 2026-09-20 04:17 UTC

Observed FT8 message patterns

Attributed sample
435 messages
Active dates
31 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-11 to +12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 58, strong (≥ -8 dB) 373.

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 F4CVQ

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
JN38 · 235 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,084 km (approx.)
Last such locator decoded
2026-09-20 03:41 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 UTCBandF4CVQ S/NCounterpartCounterpart S/NMsgsCapture
09-20 04:17 60m -15 / -5 F5MYK -11 / -8 4 ✓ Full exchange observed
09-20 03:39 40m +1 / -8 R7MP -3 / -3 4 ✓ Full exchange observed
09-20 03:37 40m +2 / -10 R4FDD +6 / -2 4 ✓ Full exchange observed
09-19 21:36 40m - / - DL1UDO +4 / - 2 Partial capture
09-19 21:33 40m +9 / - DJ0MAB - / -18 2 ✓ Closing fragment
09-19 21:32 40m +10 / - JH5HDA - / -19 2 ✓ Closing fragment
09-19 21:29 40m +6 / - MW7RHR 0 / -3 4 ✓ Full exchange observed
09-16 04:48 40m +4 / - RN3ZBX -4 / -9 2 Partial capture
09-16 04:47 40m +12 / -1 F6HUK 0 / -5 4 ✓ Full exchange observed
09-16 04:44 40m -4 / -9 SV1DKR -10 / - 3 ✓ Closing observed
09-16 04:43 40m +2 / -5 IU8RFW +7 / -10 5 ✓ Full exchange observed
09-16 04:41 40m -4 / - TJ1GD - / -23 3 ✓ Closing fragment
09-14 04:51 40m +6 / - R2FBW - / -6 2 ✓ Closing fragment
09-14 04:48 40m +10 / - K8OCN - / -13 2 ✓ Closing fragment
09-14 04:48 40m +4 / -12 YO3GNF -14 / - 6 ✓ Closing observed
09-14 04:46 40m +14 / - 9Y4DG - / -19 3 ✓ Closing fragment
09-14 04:44 40m +11 / +1 R4FFQ 0 / -5 5 ✓ Full exchange observed
09-14 04:43 40m +14 / - KD2ZZA - / -19 2 ✓ Closing fragment
09-14 04:42 40m +14 / - KN4WOJ - / -16 2 ✓ Closing fragment
09-14 04:40 40m +10 / - W5ART - / -18 2 ✓ Closing fragment
09-14 04:39 40m +9 / -12 R5AV 0 / -10 4 ✓ Full exchange observed
09-14 04:18 40m - / -21 UR4QWW -17 / - 5 Partial capture
09-14 04:17 40m - / -13 R5AV 0 / - 4 Partial capture
09-11 04:33 40m +12 / - J38DX - / -14 8 ✓ Closing fragment
09-11 04:32 40m +12 / - TA2EE - / -19 2 ✓ Closing fragment
09-11 04:30 40m 0 / - K3FH - / -11 2 ✓ Closing fragment
09-11 04:29 40m -2 / - N3VA - / -11 2 ✓ Closing fragment
09-11 04:29 40m - / - F4BYA +14 / - 3 Partial capture
09-09 04:02 40m +1 / -19 J38DX -6 / -20 28 Partial capture
09-08 04:44 40m -11 / - TT1GD - / -19 4 ✓ Closing fragment
09-08 04:38 40m -7 / - TT1GD - / - 3 Partial capture
09-06 04:55 40m +3 / - KA6AKH - / -15 2 ✓ Closing fragment
09-04 03:51 40m +10 / - HB0CC - / - 7 Partial capture
09-04 03:50 40m +19 / +4 TA3NK -3 / -13 5 ✓ Full exchange observed
09-04 03:49 40m +18 / - KC1SYO - / -14 2 ✓ Closing fragment
09-04 03:45 40m +12 / - KK7UXY - / - 4 Partial capture
09-03 04:41 40m 0 / - W6GRE - / -12 2 ✓ Closing fragment
09-03 04:40 40m +5 / - KE2CUR - / -15 5 Partial capture
09-03 04:38 40m +8 / -7 UB3DQR -6 / -10 4 ✓ Full exchange observed
09-03 04:36 40m +11 / - N4AVJ - / -17 2 ✓ Closing fragment
09-03 04:36 40m +1 / -16 DL3MIB +13 / -14 7 ✓ Full exchange observed
09-03 04:35 40m +10 / - SP8BJU - / -6 2 ✓ Closing fragment
09-03 04:33 40m +6 / - HK0RMR - / - 3 Partial capture
09-03 04:32 40m - / - DL9KM -10 / - 5 Partial capture
09-03 04:31 40m +3 / - K0LLT - / -16 3 ✓ Closing fragment
09-03 04:31 40m - / - F4BYA +3 / - 3 Partial capture
09-03 04:28 40m +4 / - HK0RMR - / - 4 Partial capture
09-03 04:23 40m +13 / - AA5FA - / -17 2 ✓ Closing fragment
09-03 04:23 40m - / - DL3MIB +12 / - 7 Partial capture
09-03 04:21 40m +11 / - WA2HMM - / -19 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
041715  -9 2236  F4CVQ F5MYK IN97
041730 -15  974  F5MYK F4CVQ -08
041745 -10 2236  F4CVQ F5MYK R-05 (x2)
40m
UTC    dB Audio  Message
213615  +4  962  F4CVQ DL1UDO JO31 (x2)
033730 +14  503  CQ F4CVQ JN38
033745  +4  504  F4CVQ R4FDD -10
033800  +5  503  R4FDD F4CVQ R-02
033815  +7  504  F4CVQ R4FDD RR73
033830  +0  503  R4FDD F4CVQ 73
033900  -6  503  CQ F4CVQ JN38
033915  -4 1116  F4CVQ R7MP -08
033930  +4  503  R7MP F4CVQ R-03
033945  -2 1116  F4CVQ R7MP RR73
034000  -2  503  R7MP F4CVQ 73
034045  +4  503  CQ F4CVQ JN38 (x3)
10m
UTC    dB Audio  Message
071600 -11  484  CQ F4CVQ JN38 (x4)
071845  +7  485  VK5BRG F4CVQ JN38
20m
UTC    dB Audio  Message
060200 -16  512  VK3EVE F4CVQ RR73
060215 -11 1565  F4CVQ VK3EVE 73
060230 -14  512  HA7TM/P F4CVQ -05
060530  -3  512  WP4BRI F4CVQ R-14
060700  -7  512  CQ F4CVQ JN38 (x3)
060930  -9  512  TA3F F4CVQ -15 (x4)
062945  +1 2659  IT9GJK F4CVQ JN38
063245 -13 2637  IT9GJK/P F4CVQ R-16 (x3)

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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