UR5AMJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UR5AMJ, decoded by SO8OO in southeastern Poland. 486 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 60 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-11.
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 486 FT8 messages attributed to UR5AMJ as the transmitting token by decoded message structure across 60 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 40 m (31%) and 10 m (9%). Decoded messages were spread across the UTC day; the busiest six-hour window (13:00-19:00 UTC) held 35% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.5 dB.
Overview
Bands
Last attributed message: 2026-09-11 18:39 UTC
Observed FT8 message patterns
- Attributed sample
- 486 messages
- Active dates
- 60 UTC dates
- Estimated median S/N
- -12.5 dB
- Estimated 10th-90th percentile
- -20 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 152, moderate (-15 to -9 dB) 200, strong (≥ -8 dB) 134.
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 UR5AMJ 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 UR5AMJ
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
- KO61 · 338 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 807 km (approx.)
- Last such locator decoded
- 2026-09-11 18:37 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 | UR5AMJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-11 18:40 | 80m | - / - | UA4FKT | +12 / - | 2 | Partial capture |
| 09-11 18:39 | 80m | -10 / +4 | US7UK | +10 / - | 4 | ✓ Full exchange observed |
| 09-11 18:36 | 80m | -11 / - | SP100PKP | - / - | 2 | Partial capture |
| 09-02 18:20 | 80m | -1 / -24 | SN40KZE | -1 / -17 | 2 | Partial capture |
| 08-31 09:27 | 20m | - / -13 | EB3JT | -14 / - | 3 | ✓ Closing fragment |
| 08-28 13:14 | 20m | - / -10 | F5PBG | -17 / - | 3 | Partial capture |
| 08-27 09:09 | 20m | -14 / - | CT1END/P | - / - | 2 | Partial capture |
| 08-22 14:18 | 20m | -4 / - | <...> | - / - | 2 | Partial capture |
| 08-22 14:10 | 20m | +4 / - | II7MGLE | - / - | 2 | Partial capture |
| 08-21 17:48 | 20m | - / -15 | <...> | -2 / - | 4 | Partial capture |
| 08-21 09:20 | 20m | -16 / - | SP8S/P | - / - | 2 | Partial capture |
| 08-21 07:53 | 20m | -12 / 0 | OJ0YL | -23 / - | 5 | Partial capture |
| 08-20 18:35 | 20m | - / -8 | UN0GY | -5 / - | 2 | ✓ Closing fragment |
| 08-20 13:46 | 20m | -14 / - | TA3KJ | - / -5 | 3 | ✓ Closing fragment |
| 08-19 09:54 | 20m | -23 / - | OH5C/P | - / -14 | 3 | ✓ Closing fragment |
| 08-19 09:49 | 20m | -16 / - | OH5YL/P | - / -17 | 4 | Partial capture |
| 08-19 07:37 | 10m | - / +3 | LZ2CC | -14 / - | 2 | ✓ Closing fragment |
| 08-18 10:39 | 20m | -12 / - | F4BYA/P | - / - | 2 | Partial capture |
| 08-17 16:56 | 20m | -12 / - | ON3ZEP/P | - / -14 | 2 | Partial capture |
| 08-17 07:57 | 20m | -22 / - | OH5C/P | -20 / -5 | 5 | ✓ Closing observed |
| 08-16 18:16 | 20m | -16 / - | DL1R | - / - | 3 | Partial capture |
| 08-16 18:13 | 20m | -12 / - | OI8MPK | - / - | 4 | ✓ Closing fragment |
| 08-16 18:04 | 20m | -10 / -7 | 5P5Z | -1 / -5 | 8 | ✓ Full exchange observed |
| 08-16 11:18 | 20m | -19 / 0 | PD0MNO | -20 / -9 | 6 | ✓ Full exchange observed |
| 08-16 11:15 | 20m | -16 / -14 | PD0IFI | -7 / - | 5 | ✓ Closing observed |
| 08-16 11:13 | 20m | -20 / -18 | PD0OTH | -22 / -5 | 7 | ✓ Full exchange observed |
| 08-16 09:23 | 20m | - / -6 | GB0CSL | -8 / - | 2 | ✓ Closing fragment |
| 08-15 06:49 | 20m | -11 / - | TC2FNR | - / - | 2 | Partial capture |
| 08-15 05:51 | 20m | -12 / - | HA7WFF | - / -17 | 2 | ✓ Closing fragment |
| 08-15 05:50 | 20m | -12 / - | EH7PAZ | - / - | 2 | Partial capture |
| 08-15 05:47 | 20m | -12 / - | N3RC | - / - | 2 | Partial capture |
| 08-14 18:09 | 20m | - / +5 | LZ5UY | -20 / - | 2 | ✓ Closing fragment |
| 08-14 18:03 | 20m | - / -13 | EG2FPA | +7 / - | 2 | Partial capture |
| 08-12 18:06 | 20m | -17 / -12 | EG5MYC | -12 / -11 | 4 | ✓ Full exchange observed |
| 08-12 18:05 | 20m | -14 / - | UT2UCC/P | - / -5 | 2 | ✓ Closing fragment |
| 08-12 18:00 | 80m | -13 / - | SP1905MFK | - / - | 3 | Partial capture |
| 08-07 18:16 | 40m | -12 / - | EG5MYC | - / - | 3 | Partial capture |
| 08-07 18:13 | 40m | -14 / -9 | SQ9M | -8 / -9 | 4 | ✓ Full exchange observed |
| 08-07 18:11 | 40m | -18 / +5 | SQ8LE | -20 / +6 | 4 | ✓ Full exchange observed |
| 08-07 18:07 | 40m | -14 / - | ON3MOH/P | - / -10 | 2 | Partial capture |
| 08-07 18:05 | 40m | -16 / - | <...> | - / -2 | 2 | Partial capture |
| 08-07 18:03 | 40m | -16 / - | ON3MOH/P | - / - | 2 | Partial capture |
| 08-07 13:19 | 20m | - / - | EB3JT | -8 / - | 5 | Partial capture |
| 08-07 13:17 | 20m | -14 / +9 | EO80F | -15 / - | 4 | Partial capture |
| 08-07 08:43 | 20m | -18 / - | HG25CCS | - / -8 | 4 | Partial capture |
| 08-06 23:27 | 40m | -14 / - | VE9HEM | - / - | 3 | Partial capture |
| 08-06 23:26 | 40m | -17 / - | CR5VP | - / -13 | 3 | ✓ Closing fragment |
| 08-05 20:09 | 40m | -6 / -16 | DF9HT/P | -16 / -17 | 5 | ✓ Full exchange observed |
| 08-05 20:07 | 40m | -11 / - | GB64MOD | - / - | 2 | Partial capture |
| 08-05 20:06 | 40m | -16 / - | YO4LUP | - / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 165845 -5 1289 EN35UKR UR5AMJ R+18 180015 -19 1096 <SP1905MFK> UR5AMJ KO61 (x3) 181745 -17 2021 SN40KZE UR5AMJ KO61 182030 -1 2028 UR5AMJ SN40KZE -24 182045 -1 2021 SN40KZE UR5AMJ R-17 183645 -11 1201 SP100PKP UR5AMJ KO61 (x2) 183900 +15 617 UR5AMJ US7UK +04 183915 -9 1201 US7UK UR5AMJ R+13 183930 +5 617 UR5AMJ US7UK RR73 183945 -11 1201 US7UK UR5AMJ 73 184000 +9 1201 UR5AMJ UA4FKT LO23 (x2)
UTC dB Audio Message 141915 -4 1739 <...> UR5AMJ KO61 172330 -7 1260 HB9/SP1FM/P UR5AMJ KO61 090900 -12 1726 ZL1RPC/P UR5AMJ KO61 090930 -14 2056 CT1END/P UR5AMJ KO61 (x2) 131400 -16 1916 UR5AMJ F5PBG IN78 (x3) 162245 -8 961 HA7TM/P UR5AMJ KO61 092600 -9 1812 <...> UR5AMJ KO61 092645 +0 2873 UR5AMJ OH0/ES2TT -07 092745 -14 2051 UR5AMJ EB3JT JN01 (x3) 141030 +1 1257 UR5AMJ TC30AGU +06
UTC dB Audio Message 164400 -18 1765 <...> UR5AMJ R-08 (x2) 080430 -11 1649 UR5AMJ LZ4VR R-05 115645 -10 438 <...> UR5AMJ KO61 (x2) 083900 -12 805 SQ5ABF UR5AMJ 73 084100 -20 1914 UR5AMJ RA5AK -09 101230 -21 1400 TK5K UR5AMJ KO61 (x4) 101445 +2 499 UR5AMJ TK5K -17 073730 -15 1770 UR5AMJ LZ2CC +03 (x2) 091400 -11 1879 UR5AMJ II7MGMU -16
UTC dB Audio Message 181115 -20 2215 UR5AMJ SQ8LE +05 181130 -16 1510 SQ8LE UR5AMJ R+06 (x2) 181300 -9 989 UR5AMJ SQ9M -09 181315 -15 1510 SQ9M UR5AMJ R-09 181330 -7 988 UR5AMJ SQ9M RR73 181345 -12 1510 SQ9M UR5AMJ 73 181600 -13 1511 EG5MYC UR5AMJ KO61 (x3) 182730 -18 1971 UN7PPV UR5AMJ KO61 182845 -16 1191 SQ9SZ UR5AMJ KO61 220430 -11 1239 DP6K/P UR5AMJ KO61 220545 -14 2416 <...> UR5AMJ KO61 234330 -17 1287 KE4EB UR5AMJ KO61
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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