UG4L — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UG4L, decoded by SO8OO in southeastern Poland. 4,502 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 91 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.
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 4,502 FT8 messages attributed to UG4L as the transmitting token by decoded message structure across 91 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (44%), followed by 80 m (33%) and 160 m (16%). Most decodes (52%) 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 -10.1 dB.
Overview
Bands
Last attributed message: 2026-09-19 23:28 UTC
Observed FT8 message patterns
- Attributed sample
- 4,502 messages
- Active dates
- 91 UTC dates
- Estimated median S/N
- -10.1 dB
- Estimated 10th-90th percentile
- -18.1 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,051, moderate (-15 to -9 dB) 1,638, strong (≥ -8 dB) 1,813.
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 · 3,110 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,771 km (approx.)
- Last such locator decoded
- 2026-09-19 23:27 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 |
|---|---|---|---|---|---|---|
| 09-19 23:27 | 160m | -13 / -2 | UA6YW | -7 / - | 5 | ✓ Full exchange observed |
| 09-19 23:19 | 160m | -6 / - | F5RRS | - / - | 2 | Partial capture |
| 09-19 23:16 | 160m | -10 / - | UA6JQ | - / -10 | 2 | ✓ Closing fragment |
| 09-19 23:15 | 160m | -15 / -13 | EW6FL | +12 / +2 | 5 | ✓ Full exchange observed |
| 09-19 23:13 | 160m | -12 / - | 4O7CC | - / - | 2 | Partial capture |
| 09-19 22:44 | 80m | - / - | UA9SY | -8 / - | 4 | Partial capture |
| 09-19 22:43 | 80m | - / - | EU1AFX | 0 / - | 2 | Partial capture |
| 09-19 22:31 | 160m | -19 / - | SM2OTU | -12 / -12 | 3 | ✓ Closing observed |
| 09-19 17:12 | 80m | -19 / +2 | RN3TT | -9 / - | 2 | ✓ Closing observed |
| 09-19 16:52 | 160m | -17 / - | RU3VT | - / -13 | 2 | ✓ Closing fragment |
| 09-19 16:46 | 160m | -14 / 0 | RO1M | -14 / -7 | 3 | ✓ Full exchange observed |
| 09-19 16:43 | 160m | -17 / - | EX7CQ | - / - | 3 | Partial capture |
| 09-19 16:39 | 160m | -14 / -18 | RC6OG | -11 / -13 | 6 | ✓ Full exchange observed |
| 09-19 16:37 | 160m | -14 / -16 | UA3RCW | -21 / -20 | 4 | ✓ Full exchange observed |
| 09-19 16:10 | 80m | +1 / - | RA6Z | -12 / -4 | 3 | ✓ Closing observed |
| 09-19 16:08 | 80m | +1 / -2 | RA7T | -5 / +1 | 4 | ✓ Full exchange observed |
| 09-19 16:07 | 80m | -2 / - | RA9MAI | - / -11 | 2 | ✓ Closing fragment |
| 09-19 00:15 | 80m | -10 / - | CX6VM | - / - | 2 | Partial capture |
| 09-19 00:10 | 80m | -4 / - | CX6VM | - / - | 2 | Partial capture |
| 09-19 00:07 | 80m | -7 / -16 | EW2ZC | +8 / -3 | 6 | ✓ Full exchange observed |
| 09-19 00:02 | 40m | -10 / - | FG5FU | - / - | 2 | Partial capture |
| 09-18 23:59 | 40m | -18 / - | RV0AAE | - / -8 | 3 | ✓ Closing fragment |
| 09-18 23:55 | 40m | -13 / -9 | OD5KU | 0 / -4 | 5 | ✓ Full exchange observed |
| 09-18 23:55 | 40m | -8 / - | ON4LDZ | - / -17 | 2 | ✓ Closing fragment |
| 09-18 23:54 | 40m | -12 / -16 | F4HXJ | +6 / -19 | 5 | ✓ Full exchange observed |
| 09-18 23:53 | 40m | -10 / - | NU1T | - / - | 2 | Partial capture |
| 09-18 23:51 | 40m | -10 / - | BI8FRF | - / - | 2 | Partial capture |
| 09-18 23:48 | 40m | -14 / - | HZ1TT | - / - | 2 | Partial capture |
| 09-18 23:45 | 40m | -12 / 0 | 9K2WA | -7 / +3 | 4 | ✓ Full exchange observed |
| 09-18 23:17 | 160m | -16 / - | RI1FJZ | - / -12 | 2 | ✓ Closing fragment |
| 09-18 15:26 | 80m | -14 / 0 | RZ3O | -14 / +1 | 3 | ✓ Full exchange observed |
| 09-18 15:25 | 80m | -16 / - | VK6IR | - / -16 | 3 | ✓ Closing fragment |
| 09-18 14:17 | 40m | -15 / - | KH8WW | - / - | 3 | Partial capture |
| 09-18 14:16 | 40m | - / - | S57BTI | +16 / - | 2 | Partial capture |
| 09-18 14:14 | 40m | -12 / - | BD8FOD | - / - | 2 | Partial capture |
| 09-18 14:09 | 40m | -17 / - | BD8FOD | - / - | 2 | Partial capture |
| 09-18 00:26 | 40m | -2 / -7 | UA9YFL | -22 / -3 | 5 | ✓ Full exchange observed |
| 09-18 00:21 | 40m | -3 / - | IZ1HJU | - / -7 | 2 | Partial capture |
| 09-18 00:14 | 80m | -7 / -12 | ON3MOH | -6 / -16 | 3 | ✓ Full exchange observed |
| 09-18 00:11 | 80m | -5 / -18 | ON4MAP | -16 / -18 | 8 | ✓ Full exchange observed |
| 09-18 00:03 | 160m | 0 / +2 | RA3DA | +23 / -25 | 5 | ✓ Full exchange observed |
| 09-17 23:58 | 160m | -14 / - | RI1FJZ | - / - | 4 | Partial capture |
| 09-17 23:51 | 160m | -18 / -15 | RG7K | -4 / -4 | 4 | ✓ Full exchange observed |
| 09-17 23:48 | 160m | -4 / -18 | DK2BJ | +4 / -13 | 11 | ✓ Full exchange observed |
| 09-17 23:43 | 160m | - / - | LX1JX | 0 / - | 2 | Partial capture |
| 09-17 23:36 | 160m | -10 / - | R8PD | - / -15 | 5 | Partial capture |
| 09-17 15:24 | 80m | -15 / - | UA0ACZ | - / - | 2 | Partial capture |
| 09-17 15:21 | 80m | -14 / - | UN7CFG | - / -7 | 2 | ✓ Closing fragment |
| 09-17 15:20 | 80m | -12 / - | R4DL | - / - | 2 | ✓ Closing fragment |
| 09-17 15:20 | 80m | -16 / - | EU6KA | -15 / -5 | 6 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 231415 -14 1863 4O7CC UG4L LO33 231515 -13 1863 EW6FL UG4L LO33 231530 +10 762 UG4L EW6FL -13 231545 -19 1863 EW6FL UG4L R+02 231600 +15 762 UG4L EW6FL RR73 231615 -12 1863 EW6FL UG4L 73 231645 -11 1863 UA6JQ UG4L R-10 (x2) 231930 -6 1317 F5RRS UG4L LO33 (x2) 232700 -19 1853 UA6YW UG4L LO33 232715 -9 1745 UG4L UA6YW -02 232730 -8 1853 UA6YW UG4L R+12 232745 -5 1745 UG4L UA6YW RR73 232800 -13 1853 UA6YW UG4L 73
UTC dB Audio Message 161030 +1 777 CQ UG4L LO33 161045 -15 777 UG4L RA6Z KN98 161100 +1 778 RA6Z UG4L -04 161145 -9 777 UG4L RA6Z 73 171245 -9 802 UG4L RN3TT +02 171330 -19 870 RN3TT UG4L 73 224245 +5 927 CQ UG4L LO33 224300 -1 1248 UG4L EU1AFX KO43 224315 +3 927 CQ UG4L LO33 224330 +1 1248 UG4L EU1AFX KO43 224400 -1 1853 UG4L DG4MCB JN58 224430 -12 927 UG4L UA9SY LO63 (x4)
UTC dB Audio Message 235715 +10 2996 UG4L F4HXJ R-16 235730 -11 1672 F4HXJ UG4L RR73 235800 -11 1672 CQ UG4L LO33 (x2) 235900 -17 1672 RV0AAE UG4L LO33 (x3) 000030 -13 1672 CQ UG4L LO33 (x3) 000200 -15 1672 FG5FU UG4L LO33 (x2) 000300 -4 1672 CQ UG4L LO33 (x3)
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
UTC dB Audio Message 152600 -15 2073 UG4L R6FMK R-01 153230 -18 1631 UG4L R7YZ LN04
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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