UG4L — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UG4L, decoded by SO8OO in southeastern Poland. 5,482 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 108 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.
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 5,482 FT8 messages attributed to UG4L as the transmitting token by decoded message structure across 108 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (40%), followed by 80 m (31%) and 160 m (24%). Most decodes (53%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-10-06 18:50 UTC
Observed FT8 message patterns
- Attributed sample
- 5,482 messages
- Active dates
- 108 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -18.2 to +0.9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,257, moderate (-15 to -9 dB) 2,005, strong (≥ -8 dB) 2,220.
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 UG4L 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 UG4L
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
- LO33 · 3,747 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,771 km (approx.)
- Last such locator decoded
- 2026-10-06 18:50 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 | UG4L S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 18:48 | 80m | -13 / -18 | AM5CV | +14 / -13 | 4 | ✓ Full exchange observed |
| 10-06 18:45 | 80m | -12 / +2 | RW4F | -21 / +5 | 4 | ✓ Full exchange observed |
| 10-06 18:42 | 80m | -10 / -12 | ON7GB | +5 / -18 | 7 | ✓ Full exchange observed |
| 10-06 18:42 | 80m | -8 / -12 | R7BO | 0 / -1 | 3 | ✓ Full exchange observed |
| 10-06 18:24 | 160m | - / - | OE3PKU | -10 / - | 2 | Partial capture |
| 10-06 18:21 | 160m | -12 / - | UB9MEU | - / -19 | 2 | Partial capture |
| 10-06 18:19 | 160m | -14 / - | RZ6HBK | - / -10 | 3 | ✓ Closing fragment |
| 10-06 18:06 | 160m | - / - | GM8IEM | -6 / - | 2 | Partial capture |
| 10-06 18:05 | 160m | - / - | SP2EWQ | +8 / - | 2 | Partial capture |
| 10-06 18:03 | 160m | -21 / +2 | RA3ZH | +1 / -4 | 5 | ✓ Full exchange observed |
| 10-06 17:59 | 160m | -16 / - | UA4FEN | - / +3 | 2 | ✓ Closing fragment |
| 10-06 17:56 | 160m | -19 / -2 | R7OF | -16 / -7 | 4 | ✓ Full exchange observed |
| 10-06 16:46 | 160m | -19 / - | RD9FC | - / -15 | 2 | ✓ Closing fragment |
| 10-06 16:43 | 160m | -12 / - | RA3AKU | - / -20 | 2 | ✓ Closing fragment |
| 10-06 14:53 | 160m | - / -16 | RA3ZGT | -11 / - | 3 | ✓ Closing fragment |
| 10-05 23:42 | 40m | - / +1 | RD3FY | -8 / - | 2 | ✓ Closing fragment |
| 10-05 23:16 | 80m | +4 / -9 | YL3JI | +1 / -7 | 5 | ✓ Full exchange observed |
| 10-05 23:10 | 80m | +1 / -1 | TA4SSK | -22 / -10 | 4 | ✓ Full exchange observed |
| 10-05 23:09 | 80m | +2 / -7 | ON4MAP | -15 / -18 | 7 | ✓ Full exchange observed |
| 10-05 23:06 | 80m | -7 / -17 | DH0BRO | -11 / -16 | 3 | ✓ Full exchange observed |
| 10-05 22:48 | 160m | -2 / -13 | OK1WCF | +14 / -4 | 5 | ✓ Full exchange observed |
| 10-05 16:40 | 160m | -21 / -11 | RC1TF | -10 / - | 4 | ✓ Closing observed |
| 10-05 15:57 | 160m | -19 / -4 | UB1Q | -16 / - | 3 | ✓ Closing observed |
| 10-05 15:25 | 40m | -9 / - | UA3PTK | - / -2 | 2 | ✓ Closing fragment |
| 10-05 15:18 | 40m | - / - | R3IAD | -8 / - | 2 | Partial capture |
| 10-05 15:17 | 40m | -14 / - | BA8BLJ | - / -19 | 2 | Partial capture |
| 10-05 15:15 | 40m | - / +8 | OH3MB | +6 / - | 2 | Partial capture |
| 10-05 15:13 | 40m | - / - | M1DBB | -12 / - | 3 | Partial capture |
| 10-04 21:34 | 160m | -10 / -5 | 5P1KZX | +6 / 0 | 5 | ✓ Full exchange observed |
| 10-04 21:31 | 160m | -15 / - | CT1EEX | - / - | 3 | Partial capture |
| 10-04 21:21 | 160m | -15 / - | UA6XT | - / -12 | 3 | ✓ Closing fragment |
| 10-04 21:18 | 160m | -11 / -6 | DL8UNO | -12 / -13 | 5 | Partial capture |
| 10-04 21:17 | 160m | -12 / -14 | YO2NAA | -8 / - | 7 | ✓ Closing observed |
| 10-04 21:15 | 160m | -8 / -16 | SP9UPV | +6 / -11 | 5 | ✓ Full exchange observed |
| 10-04 20:54 | 160m | - / - | OE6TNO | -7 / - | 8 | Partial capture |
| 10-04 20:48 | 160m | -8 / -24 | G6PWS | -17 / -17 | 6 | ✓ Full exchange observed |
| 10-04 20:44 | 160m | -5 / - | JH0INP | - / -19 | 3 | ✓ Closing fragment |
| 10-04 20:43 | 160m | -6 / - | JA5NLN | - / -16 | 2 | Partial capture |
| 10-04 20:42 | 160m | -8 / - | JA5XAE | - / -12 | 2 | ✓ Closing fragment |
| 10-04 20:39 | 160m | -12 / - | JA7EVP | - / -22 | 2 | ✓ Closing fragment |
| 10-04 20:36 | 160m | - / - | OE6TNO | -6 / - | 2 | Partial capture |
| 10-04 20:34 | 160m | -8 / - | R3YCJ | -21 / - | 4 | ✓ Closing observed |
| 10-04 20:34 | 160m | -16 / - | JR3REX | - / -11 | 2 | ✓ Closing fragment |
| 10-04 20:31 | 160m | -14 / -11 | SP1MGM | +4 / 0 | 5 | ✓ Full exchange observed |
| 10-04 20:30 | 160m | -15 / - | JR3REX | - / - | 2 | Partial capture |
| 10-04 20:24 | 160m | -10 / -4 | RA6SA | 0 / +3 | 5 | ✓ Full exchange observed |
| 10-04 20:22 | 160m | -7 / - | JH4AAG | - / -10 | 2 | ✓ Closing fragment |
| 10-04 20:21 | 160m | -12 / - | RA6FYL | - / -8 | 2 | ✓ Closing fragment |
| 10-04 20:16 | 160m | -4 / - | EI2KM | - / - | 4 | Partial capture |
| 10-04 18:16 | 160m | -20 / -3 | R9FAK | -18 / +8 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 184415 -13 2246 R6WAO UG4L LO33 184445 -12 2247 CQ UG4L LO33 (x2) 184530 -21 891 UG4L RW4F LO23 184545 -10 2247 RW4F UG4L +05 184600 -21 892 UG4L RW4F R+02 184615 -15 2247 RW4F UG4L RR73 184645 -15 2247 CQ UG4L LO33 (x2) 184845 -17 2247 AM5CV UG4L LO33 184900 +14 512 UG4L AM5CV -18 184915 -16 2247 AM5CV UG4L R-13 184930 +10 512 UG4L RR73; G0THY <...> -14 184945 -7 2247 AM5CV UG4L 73 185015 -7 2247 CQ UG4L LO33
UTC dB Audio Message 180600 -10 1730 UG4L GM8IEM IO78 (x2) 181930 -17 1217 RZ6HBK UG4L R-10 (x3) 182100 -14 1217 CQ UG4L LO33 182130 -13 1217 UB9MEU UG4L -19 (x2) 182330 -14 1217 RW3VA UG4L 73 182400 -18 1217 CQ UG4L LO33 182430 -14 1217 RW4W UG4L LO33 182445 -8 1829 UG4L OE3PKU JN87 (x2) 183600 -15 1161 RU4CK UG4L LO33 183700 -14 1160 CQ UG4L LO33
UTC dB Audio Message 151545 +4 1106 UG4L OH3MB KP20 (x2) 151700 -15 1105 BA8BLJ UG4L -19 (x2) 151830 -13 1105 CQ UG4L LO33 151845 -8 1677 UG4L R3IAD KO76 (x2) 152500 -5 1104 CQ UG4L LO33 152530 -8 1104 UA3PTK UG4L -02 (x2) 152700 -9 1104 BA8BLJ UG4L RR73 152730 -11 1103 CQ UG4L LO33 (x2) 234230 -6 313 UG4L RD3FY R+01 (x2)
UTC dB Audio Message 135845 +4 1084 CQ UG4L LO33 135915 +5 1084 OK2CNI UG4L +22 (x2) 140015 -1 1083 LZ1BT UG4L -01 140045 +5 1083 CQ UG4L LO33 140115 +6 1083 LZ1BT UG4L RR73 140145 -2 1083 CQ UG4L LO33 (x3) 140315 +7 1083 SP5RFL UG4L -11 (x2) 140415 +11 1083 CQ UG4L LO33 140445 -1 1082 DL5MKR UG4L -01 (x2) 140545 +6 1082 CQ UG4L LO33
UTC dB Audio Message 230600 -6 2163 UG4L SP6LUT JO80
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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