CX3VB — 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: Uruguay Most frequent locator attributed to this token: GF27

Receiver-side FT8 activity involving CX3VB, decoded by SO8OO in southeastern Poland. 36 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-20.

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 36 FT8 messages attributed to CX3VB as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (89%), followed by 20 m (11%). Several six-hour UTC windows tied for the largest share (92%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (64%); the estimated median was -18 dB.

Overview

36
Messages attributed
6
UTC dates decoded
14
Active 15-min windows
-18 dB
Estimated median S/N

Bands

20m · 4 10m · 32
First attributed message: 2026-06-08
Last attributed message: 2026-10-20 11:25 UTC

Observed FT8 message patterns

Attributed sample
36 messages
Active dates
6 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-22 to -12 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 0.

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 CX3VB in decoded directed-looking exchanges:

Most frequent locator attributed to CX3VB

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
GF27 · 8 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
11,863 km (approx.)
Last such locator decoded
2026-08-21 20:59 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 UTCBandCX3VB S/NCounterpartCounterpart S/NMsgsCapture
10-21 21:11 40m - / - EA2FBG -5 / - 3 ✓ Closing fragment
10-21 21:07 40m - / -17 ON3MOH -9 / - 3 Partial capture
09-29 21:52 40m - / - HB9ELE -10 / - 2 Partial capture
09-28 23:06 40m - / - F4LXP +7 / - 3 Partial capture
09-28 22:36 40m - / -13 F1PBZ -5 / - 3 Partial capture
09-28 22:05 40m - / -22 IK8TLZ +8 / - 3 Partial capture
09-28 21:24 40m - / -16 EA8AQD -16 / - 2 Partial capture
09-28 21:22 40m - / -16 EC1ALT -10 / - 2 ✓ Closing fragment
09-28 21:12 40m - / -19 EA3AAY -12 / - 3 ✓ Closing fragment
09-28 21:08 40m - / - CS7BXA -11 / - 2 Partial capture
08-21 20:49 20m - / -11 F4MMT -5 / - 3 ✓ Closing fragment
08-21 20:44 20m - / -8 OK2CNI +1 / - 3 ✓ Closing fragment
08-20 21:18 20m -23 / -16 DL1SMA -5 / -16 4 ✓ Full exchange observed
08-20 20:59 20m -21 / -25 ON8HW -10 / - 4 ✓ Closing observed
08-13 21:53 40m - / - DH3KR -17 / - 4 Partial capture
08-08 01:14 40m - / - DG5PW -18 / - 2 Partial capture
08-07 21:07 20m - / -17 YT3BL -12 / - 4 ✓ Closing fragment
08-02 22:39 40m - / - DL1BJL -8 / - 2 ✓ Closing fragment
08-02 22:36 40m - / -23 EA3AKY -13 / - 3 ✓ Closing fragment
08-02 22:11 40m - / -15 OH3NXW -10 / - 2 ✓ Closing fragment
08-02 21:35 20m - / - EA1FRJ -20 / - 2 Partial capture
08-02 21:34 20m - / -15 IS0KNG -9 / - 14 Partial capture
08-01 22:29 40m - / -16 OZ5GW -14 / - 3 Partial capture
08-01 22:26 40m - / -16 DH5BM -14 / - 4 ✓ Closing fragment
08-01 22:21 40m - / -17 IU1VJP -10 / - 4 Partial capture
08-01 22:18 40m - / - IW0RLC -5 / - 4 ✓ Closing fragment
08-01 22:18 40m - / - OZ5GW -16 / - 4 Partial capture
08-01 21:59 40m - / - PD2V -14 / - 10 Partial capture
08-01 01:08 40m - / - F8NHF -13 / - 7 Partial capture
08-01 01:03 40m - / - RA4FW 0 / - 3 Partial capture
07-31 23:01 40m - / -23 LZ2EV -4 / - 4 ✓ Closing fragment
07-31 22:56 40m - / -19 RD3FY -13 / - 2 ✓ Closing fragment
07-27 23:23 40m - / -11 UT5ZC -6 / - 3 ✓ Closing fragment
07-27 23:05 40m - / - DH5BM -15 / - 2 Partial capture
07-26 21:10 40m - / -18 EA5PG -10 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
220630  +9 1939  CX3VB IK8TLZ R-22
223630 -13 2490  CX3VB F1PBZ -13 (x3)
230600  +9 2752  CX3VB F4LXP JN05 (x3)
215200 -10  696  CX3VB HB9ELE JN47 (x2)
210700 -12 1993  CX3VB ON3MOH -17 (x3)
211100  -1 1995  CX3VB EA2FBG IN93 (x3)
10m 
UTC    dB Audio  Message
112545 -22 2045  RZ3DZ CX3VB -12
20m 
UTC    dB Audio  Message
211830  -7  633  CX3VB DL1SMA JN48
211915 -23 2082  DL1SMA CX3VB -16
212000  +0  633  CX3VB DL1SMA R-16 (x2)
212415  -9 2083  CX3VB YL3KZ KO16
204030  -9 1879  CX3VB F4EEJ 73
204430  +6 2418  CX3VB OK2CNI JN79 (x3)
204900  -5 2028  CX3VB F4MMT JN26 (x3)
205915 -20 2031  CQ DX CX3VB GF27
210000 -14  588  CX3VB F4MSA -19
210430  -1 2030  CX3VB IZ8IQL JN71

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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