F5NBU — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving F5NBU, decoded by SO8OO in southeastern Poland. 5,486 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-10-23.
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 5,486 FT8 messages attributed to F5NBU as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (82%), followed by 80 m (7%) and 60 m (6%). Most decodes (57%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +4.6 dB.
Overview
Bands
Last attributed message: 2026-10-23 19:41 UTC
Observed FT8 message patterns
- Attributed sample
- 5,486 messages
- Active dates
- 40 UTC dates
- Estimated median S/N
- +4.6 dB
- Estimated 10th-90th percentile
- -9.7 to +16 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 131, moderate (-15 to -9 dB) 524, strong (≥ -8 dB) 4,831.
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 F5NBU 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 F5NBU
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
- JN28 · 3,549 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,227 km (approx.)
- Last such locator decoded
- 2026-10-23 19:40 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 | F5NBU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 19:40 | 60m | +6 / -7 | R3ZBD | -10 / -14 | 5 | ✓ Full exchange observed |
| 10-23 18:58 | 60m | +13 / - | R6LOK | -17 / -19 | 5 | ✓ Closing observed |
| 10-23 18:41 | 60m | - / - | G4WGE | -11 / - | 2 | Partial capture |
| 10-23 18:40 | 60m | - / - | OE6TNO | +3 / - | 9 | Partial capture |
| 10-23 07:19 | 60m | +10 / - | WV9L | - / -11 | 6 | ✓ Closing fragment |
| 10-23 06:25 | 80m | - / - | DO5AX | -14 / - | 2 | Partial capture |
| 10-23 06:12 | 80m | - / -14 | DK7ZT | +3 / - | 5 | Partial capture |
| 10-23 06:09 | 80m | +16 / - | K4HWS | - / -19 | 5 | ✓ Closing fragment |
| 10-23 06:07 | 80m | +15 / - | W0RLD | - / - | 3 | Partial capture |
| 10-23 06:05 | 80m | +18 / - | R1QF/P | - / -24 | 2 | Partial capture |
| 10-23 05:37 | 60m | +14 / - | WD4OBP | - / -10 | 2 | ✓ Closing fragment |
| 10-23 05:36 | 60m | - / +2 | SQ7LQT | +9 / - | 6 | Partial capture |
| 10-23 05:32 | 60m | +18 / - | AI9K | - / -21 | 2 | ✓ Closing fragment |
| 10-23 05:31 | 60m | - / - | F1IQH | +1 / - | 3 | Partial capture |
| 10-22 21:39 | 60m | +19 / +5 | EP2AES | -13 / 0 | 35 | ✓ Full exchange observed |
| 10-22 20:51 | 60m | - / - | EB3JT | +3 / - | 7 | Partial capture |
| 10-22 20:51 | 60m | +24 / - | Z68QQ | - / - | 2 | ✓ Closing fragment |
| 10-22 20:27 | 80m | - / - | DL9KM | -2 / - | 6 | Partial capture |
| 10-22 20:18 | 80m | - / - | DF8RU | -4 / - | 3 | Partial capture |
| 10-22 20:09 | 80m | +14 / - | EP2AES | - / - | 7 | Partial capture |
| 10-22 17:47 | 160m | - / - | DL4JCP | -16 / - | 3 | Partial capture |
| 10-22 17:46 | 160m | +15 / - | TK4RB | -12 / -10 | 6 | ✓ Full exchange observed |
| 10-22 17:44 | 160m | - / - | UA3ZNQ | -20 / - | 2 | Partial capture |
| 10-22 15:44 | 60m | +16 / - | 3B8FA | - / -19 | 5 | ✓ Closing fragment |
| 10-22 06:56 | 60m | - / - | SP2EWQ | +4 / - | 2 | Partial capture |
| 10-22 06:56 | 60m | +11 / - | FK8HC | - / - | 14 | ✓ Closing fragment |
| 10-22 06:42 | 60m | +13 / - | FK8HC | - / -14 | 21 | Partial capture |
| 10-21 19:43 | 160m | +18 / - | 7P8GE | - / -22 | 6 | Partial capture |
| 10-18 20:34 | 80m | - / - | DL9KM | +1 / - | 7 | Partial capture |
| 10-18 20:31 | 80m | +8 / -13 | JA5MHD | -13 / -19 | 5 | ✓ Full exchange observed |
| 10-18 20:31 | 80m | - / - | OE9GWV | -5 / - | 2 | Partial capture |
| 10-18 20:30 | 80m | +4 / - | JH7IMX | - / -21 | 2 | ✓ Closing fragment |
| 10-18 20:28 | 80m | - / - | JA7NPV | -22 / - | 3 | Partial capture |
| 10-18 20:27 | 80m | +6 / -6 | JA9ESZ | +2 / -5 | 11 | ✓ Full exchange observed |
| 10-18 20:27 | 80m | +1 / - | JA7EPO | -23 / -16 | 7 | ✓ Closing observed |
| 10-18 20:26 | 80m | +5 / +7 | JA7GLO | -10 / -24 | 4 | ✓ Full exchange observed |
| 10-18 20:26 | 80m | +6 / - | JA0LFV | - / -17 | 3 | ✓ Closing fragment |
| 10-18 20:24 | 80m | - / - | OE8SWR | +2 / - | 7 | Partial capture |
| 10-18 20:23 | 80m | +4 / - | JH0RNN | -8 / -18 | 5 | ✓ Closing observed |
| 10-18 20:22 | 80m | +5 / - | VR2ZXP | - / -13 | 2 | ✓ Closing fragment |
| 10-18 20:20 | 80m | +8 / - | JJ7KKM | - / -15 | 3 | ✓ Closing fragment |
| 10-18 20:18 | 80m | - / - | DK7ZT | +13 / - | 5 | Partial capture |
| 10-18 20:18 | 80m | - / - | JA0HXV | -6 / - | 3 | Partial capture |
| 10-18 20:18 | 80m | - / - | F1IQH | -11 / - | 2 | Partial capture |
| 10-18 20:18 | 80m | +7 / -11 | JG2AJK | -11 / -10 | 4 | ✓ Full exchange observed |
| 10-18 20:17 | 80m | +6 / -14 | JA0FVU | -11 / -25 | 5 | ✓ Full exchange observed |
| 10-18 20:16 | 80m | - / - | R4FDD | -10 / - | 2 | Partial capture |
| 10-18 20:14 | 80m | - / - | JA1BJY | -18 / - | 4 | Partial capture |
| 10-18 20:13 | 80m | - / - | EA3HMM | -8 / - | 3 | Partial capture |
| 10-18 20:13 | 80m | 0 / - | JA6LCJ | -16 / -20 | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 184200 -1 2702 F5NBU OE6TNO JN77 (x5) 185815 +15 2701 R6LOK F5NBU JN28 (x4) 190000 -17 1522 F5NBU R6LOK 73 194045 +4 1446 R3ZBD F5NBU JN28 194100 -10 1275 F5NBU R3ZBD -07 194115 +8 1446 R3ZBD F5NBU R-14 194130 -11 1275 F5NBU R3ZBD RR73 194145 +7 1446 R3ZBD F5NBU 73
UTC dB Audio Message 060700 +15 2670 W0RLD F5NBU JN28 (x3) 060915 +17 2670 K4HWS F5NBU JN28 (x5) 061200 +5 1759 F5NBU DK7ZT -14 (x5) 062530 -12 2470 F5NBU DO5AX JO52 (x2)
UTC dB Audio Message 194515 +14 2890 7P8GE F5NBU R-23 (x3) 174330 +1 2481 TK4RB F5NBU JN28 174415 -15 1288 F5NBU UA3ZNQ KO81 (x2) 174600 +18 2481 TK4RB F5NBU JN28 (x2) 174645 -16 2481 F5NBU TK4RB +26 174700 +13 2481 TK4RB F5NBU R-10 174715 -8 2481 F5NBU TK4RB RR73 174715 -10 1930 F5NBU DL4JCP JO60 174730 +13 2481 TK4RB F5NBU 73 174745 -17 1929 F5NBU DL4JCP JO60 (x2)
UTC dB Audio Message 052000 +12 1542 WE0D F5NBU JN28 052230 +8 1793 K0AT F5NBU JN28 (x4) 052500 +6 2039 R8LCX F5NBU JN28 (x4) 052915 +9 1688 W6SPB F5NBU JN28 (x4) 053815 +11 535 W9BLU F5NBU JN28 (x2)
UTC dB Audio Message 070300 +7 2702 CQ DX F5NBU JN28 070330 +9 2702 W6IWW F5NBU RR73 070345 +3 2703 F5NBU YO4NF -11 070400 -11 1457 KP4PUA F5NBU R-12 070415 +4 2703 F5NBU YO4NF -11 070430 +1 1457 KP4PUA F5NBU R-12 070530 +2 2703 CQ DX F5NBU JN28 (x2) 070700 +4 2703 VK3HU F5NBU JN28 (x5) 070915 +10 2704 F5NBU YO4NF -03 (x2)
UTC dB Audio Message 210030 -20 1762 MM7DAH F5NBU JN28 103915 -5 1264 YD7OHC F5NBU JN28 103945 -3 793 RU9UC F5NBU JN28 (x3) 104130 -22 1975 YC2OEI F5NBU JN28 (x3) 113815 -18 1291 JQ3ICB F5NBU JN28
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.
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