RK4NB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RK4NB, decoded by SO8OO in southeastern Poland. 252 related FT8 messages, 13 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 25 UTC dates. Heard between 2026-04-22 and 2026-07-08.
These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.
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Overview
Frequent QSO partners observed at SO8OO
Stations RK4NB worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by RK4NB
Approximate centre of LO48, decoded 2026-06-22 19:46 UTC. A transmitted locator is not proof of the operator's permanent location.
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 | RK4NB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-04 01:54 | 40m | - / -15 | R2RCQ | -12 / - | 2 | Partial capture |
| 06-26 18:37 | 40m | - / - | RA3AJT | -12 / - | 2 | ✓ Closing fragment |
| 06-22 19:46 | 80m | - / - | JA5MHD | -8 / - | 2 | Partial capture |
| 06-22 19:46 | 80m | - / - | R1BLH | +8 / - | 2 | Partial capture |
| 06-22 16:13 | 40m | - / - | R7CD | -17 / - | 2 | Partial capture |
| 06-22 15:36 | 40m | - / -25 | RA3ZOM | -14 / - | 2 | ✓ Closing fragment |
| 06-22 10:20 | 20m | - / -11 | RZ7KR | -12 / - | 6 | Partial capture |
| 06-13 20:25 | 40m | - / - | DJ0MAB | -7 / - | 2 | Partial capture |
| 06-12 16:08 | 40m | - / -17 | UE7DR | -21 / - | 2 | ✓ Closing fragment |
| 06-12 13:31 | 20m | - / - | F1PSX | -14 / - | 5 | Partial capture |
| 06-03 20:31 | 80m | - / -3 | RL6LP | -10 / - | 2 | Partial capture |
| 06-03 20:30 | 80m | -19 / -16 | E79D | +15 / -12 | 3 | ✓ Full exchange observed |
| 05-29 19:29 | 80m | - / - | 9A4ZM | +7 / - | 2 | Partial capture |
| 05-29 19:28 | 80m | - / -9 | UA3RLE | -1 / - | 3 | ✓ Closing fragment |
| 05-29 19:24 | 80m | - / -9 | R2EA/P | +1 / - | 2 | ✓ Closing fragment |
| 05-29 19:23 | 80m | -18 / -13 | RA3XFR | -4 / -15 | 4 | ✓ Full exchange observed |
| 05-29 18:47 | 80m | -22 / - | UA4NCX | - / +2 | 2 | ✓ Closing fragment |
| 05-29 18:44 | 80m | -20 / - | RU3OH | - / -16 | 2 | ✓ Closing fragment |
| 05-29 18:42 | 80m | - / - | R6AC | -21 / - | 3 | Partial capture |
| 05-29 18:41 | 80m | - / -4 | UA3SCU | -12 / - | 2 | ✓ Closing fragment |
| 05-29 18:36 | 80m | - / -4 | RU3T | 0 / - | 2 | ✓ Closing fragment |
| 05-29 18:15 | 40m | - / - | EW4DX | +6 / - | 3 | Partial capture |
| 05-29 18:02 | 40m | - / -12 | RU3OH | -15 / - | 2 | Partial capture |
| 05-29 18:02 | 40m | - / -11 | UA3RBM | -14 / - | 2 | Partial capture |
| 05-29 18:01 | 40m | -5 / -13 | RA6AR | -13 / -12 | 2 | Partial capture |
| 05-29 17:57 | 40m | - / -17 | ES2AJ | 0 / - | 2 | ✓ Closing fragment |
| 05-29 17:56 | 40m | - / - | RK2Z | +4 / - | 2 | Partial capture |
| 05-28 20:15 | 40m | - / - | OZ5THY | -4 / - | 4 | Partial capture |
| 05-27 19:16 | 80m | - / -10 | RV6HE | -16 / - | 3 | Partial capture |
| 05-27 19:12 | 80m | - / -10 | UB3LBU | -6 / - | 3 | Partial capture |
| 05-27 19:03 | 80m | - / -7 | RK6MC | 0 / - | 4 | ✓ Closing fragment |
| 05-27 19:01 | 80m | - / +6 | RX4SA | -6 / - | 3 | ✓ Closing fragment |
| 05-27 19:00 | 80m | - / - | RJ3T | -14 / - | 3 | ✓ Closing fragment |
| 05-27 18:59 | 80m | - / - | RK6OV | -19 / - | 6 | Partial capture |
| 05-27 18:59 | 80m | - / -6 | RK4HS | -12 / - | 2 | ✓ Closing fragment |
| 05-27 18:14 | 40m | - / - | R1LP | -6 / - | 2 | Partial capture |
| 05-27 18:14 | 40m | - / - | RO5K | -18 / - | 2 | Partial capture |
| 05-27 18:06 | 40m | - / -5 | RA5AK | -7 / - | 3 | ✓ Closing fragment |
| 05-27 18:05 | 40m | - / - | R9FDM | -19 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 160845 -21 1638 RK4NB UE7DR -17 (x2) 202545 -6 1558 RK4NB DJ0MAB JN49 (x2) 153330 -18 1200 RK4NB RA3ZOM KO90 (x3) 161300 -14 1456 RK4NB R7CD KN94 (x2) 175115 -18 2078 RK4NB RK4HS R-10 183730 -12 1987 RK4NB RA3AJT RR73 (x2) 015415 -11 1718 RK4NB R2RCQ KO85 (x2) 010045 +5 2721 RK4NB IQ4JO JN63
UTC dB Audio Message 192945 +7 1391 RK4NB 9A4ZM JN86 193000 -18 1396 CQ RK4NB LO48 193015 +7 1391 RK4NB 9A4ZM JN86 203030 +13 1052 RK4NB E79D -16 203045 -19 1051 E79D RK4NB R-12 203100 +17 1052 RK4NB E79D RR73 203130 -11 486 RK4NB RL6LP -03 (x2) 194545 -14 1595 CQ RK4NB LO48 a1 (x2) 194630 +9 429 RK4NB R1BLH KP50 194630 -7 334 RK4NB JA5MHD PM63 194645 -15 1595 CQ RK4NB LO48 194700 -10 333 RK4NB JA5MHD PM63 194700 +8 429 RK4NB R1BLH KP50
UTC dB Audio Message 133045 -21 1640 CQ RK4NB LO48 (x2) 133130 -12 1642 RK4NB F1PSX JN08 (x3) 133300 -18 1638 RK4NB UB9USV NO33 133400 -13 1641 RK4NB F1PSX JN08 (x2) 102045 -8 591 RK4NB RZ7KR -11 (x6)
UTC dB Audio Message 080930 -17 1354 RK4NB UC7T LN05
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.