4X5CG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving 4X5CG, decoded by SO8OO in southeastern Poland. 245 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-28 and 2026-10-03.
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 245 FT8 messages attributed to 4X5CG 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 (100%), followed by 60 m (0%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-10-03 02:51 UTC
Observed FT8 message patterns
- Attributed sample
- 245 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -19 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 57, moderate (-15 to -9 dB) 142, strong (≥ -8 dB) 46.
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 4X5CG 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 4X5CG
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
- KM71 · 92 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,325 km (approx.)
- Last such locator decoded
- 2026-10-03 02:50 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 UTC | Band | 4X5CG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-03 02:39 | 40m | -12 / - | M1AQR | -23 / -15 | 8 | ✓ Closing observed |
| 10-03 02:35 | 40m | -13 / -17 | M1AQR | -18 / -15 | 4 | Partial capture |
| 10-03 02:30 | 40m | - / -9 | R3SN | -8 / - | 3 | ✓ Closing fragment |
| 10-03 02:28 | 40m | -18 / - | SP5DUJ | - / -19 | 2 | Partial capture |
| 10-03 02:26 | 40m | - / - | F5PBG | +6 / - | 2 | Partial capture |
| 10-03 02:26 | 40m | - / - | R3SN | -9 / - | 4 | Partial capture |
| 10-03 02:24 | 40m | - / -5 | W6NWS | -3 / - | 2 | Partial capture |
| 10-03 02:22 | 40m | -14 / - | HB9EOT | - / -16 | 4 | ✓ Closing fragment |
| 10-03 02:22 | 40m | - / -14 | KI8JP | -10 / - | 3 | Partial capture |
| 10-03 02:18 | 40m | -14 / -3 | EA6LU | -15 / +10 | 6 | ✓ Full exchange observed |
| 10-03 02:14 | 40m | -14 / -10 | F4DZF/P | -4 / -10 | 6 | ✓ Full exchange observed |
| 10-03 02:11 | 40m | - / -14 | HC1DAZ | -21 / - | 3 | ✓ Closing fragment |
| 10-03 02:01 | 40m | - / - | KY2J | -1 / - | 3 | Partial capture |
| 10-03 02:00 | 40m | - / -15 | F1PBZ | -1 / - | 4 | Partial capture |
| 10-03 02:00 | 40m | - / - | RZ4FWA | -16 / - | 4 | Partial capture |
| 10-03 01:50 | 40m | -13 / - | Z61DX | - / +7 | 4 | ✓ Closing fragment |
| 10-02 19:44 | 40m | -7 / - | YT2TW | - / -1 | 4 | ✓ Closing fragment |
| 10-02 19:41 | 40m | -10 / - | RC5F | -2 / -4 | 4 | ✓ Closing observed |
| 10-02 19:39 | 40m | -10 / - | YT2TW | - / -9 | 4 | Partial capture |
| 10-02 19:33 | 40m | -8 / -3 | HB9ELE | +4 / +10 | 5 | ✓ Full exchange observed |
| 10-02 19:31 | 40m | -11 / - | DS2MGT | - / -13 | 4 | ✓ Closing fragment |
| 10-02 19:30 | 40m | - / - | F5PBG | -4 / - | 2 | Partial capture |
| 10-02 19:27 | 40m | -10 / - | ZL1MED | - / -23 | 7 | ✓ Closing fragment |
| 10-02 01:34 | 40m | -16 / -6 | F4CQS | -8 / -3 | 8 | ✓ Full exchange observed |
| 10-02 01:34 | 40m | -13 / - | IZ8PPI | - / -4 | 2 | ✓ Closing fragment |
| 10-02 01:33 | 40m | -15 / - | KW4BY | - / - | 2 | Partial capture |
| 10-02 01:23 | 40m | -10 / -6 | KF4Y | -4 / -13 | 4 | Partial capture |
| 10-02 01:19 | 40m | -14 / -8 | GM7JQK | -14 / - | 4 | Partial capture |
| 10-02 01:17 | 40m | -23 / - | TA2VUZ | -16 / -3 | 2 | ✓ Closing observed |
| 10-02 01:14 | 40m | -14 / - | UA9SY | - / -16 | 3 | Partial capture |
| 10-02 01:11 | 40m | -16 / - | WV5A | - / - | 2 | Partial capture |
| 10-02 00:53 | 40m | - / -18 | RZ6AKF | +2 / - | 2 | ✓ Closing fragment |
| 10-02 00:49 | 40m | -23 / - | IZ3BGL | - / - | 2 | Partial capture |
| 10-02 00:30 | 40m | -6 / - | OE3OOG | - / -9 | 2 | Partial capture |
| 10-02 00:28 | 40m | - / -20 | ON5VN | +2 / - | 9 | Partial capture |
| 10-02 00:26 | 40m | -6 / -15 | IW2MYH | +6 / -6 | 7 | ✓ Full exchange observed |
| 10-02 00:18 | 40m | -21 / -10 | IU8RFW | -1 / - | 6 | ✓ Closing observed |
| 10-02 00:10 | 40m | - / -3 | HB9ELE | +18 / - | 2 | ✓ Closing fragment |
| 10-02 00:07 | 40m | -24 / -8 | SV3AUW | -14 / - | 3 | ✓ Closing observed |
| 10-01 02:14 | 40m | - / -8 | IW2ODG | -6 / - | 2 | ✓ Closing fragment |
| 10-01 01:56 | 40m | -8 / -14 | MI7XHT | -8 / -17 | 9 | ✓ Closing observed |
| 10-01 01:55 | 40m | - / -11 | ON8FAB | -8 / - | 2 | ✓ Closing fragment |
| 10-01 01:52 | 40m | - / -19 | AA2T | -6 / - | 3 | ✓ Closing fragment |
| 10-01 01:23 | 40m | - / -16 | IQ4JO | -9 / - | 2 | Partial capture |
| 10-01 01:08 | 40m | -16 / - | 9A4ZM | - / -10 | 2 | Partial capture |
| 10-01 01:03 | 40m | - / - | W4GGJ | -21 / - | 3 | Partial capture |
| 10-01 01:02 | 40m | -18 / -15 | F4BYA | +11 / -12 | 5 | ✓ Full exchange observed |
| 10-01 00:49 | 40m | -16 / - | RZ4FWA | - / +2 | 7 | Partial capture |
| 10-01 00:46 | 40m | -11 / - | Z31B | - / +8 | 2 | ✓ Closing fragment |
| 10-01 00:44 | 40m | -12 / - | 4X5JK | -10 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 025100 -11 1433 EB2EMZ 4X5CG -09
UTC dB Audio Message 023530 -18 1266 4X5CG M1AQR -17 023545 -12 1266 M1AQR 4X5CG KM71 023600 -17 1266 4X5CG M1AQR -17 023645 -14 1267 M1AQR 4X5CG R-15 (x6) 024130 -23 1266 4X5CG M1AQR RR73 024145 -10 1266 M1AQR 4X5CG R-15 024200 -23 1266 4X5CG M1AQR RR73 024445 -20 1266 M1AQR 4X5CG 73 024930 -11 1439 WP4TUN 4X5CG KM71 025000 -10 1439 CQ 4X5CG KM71
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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