RK4YC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RK4YC, decoded by SO8OO in southeastern Poland. 531 related FT8 messages, 70 CQ messages, observed on 80m, 40m, 20m, across 10 UTC dates. Heard between 2026-04-27 and 2026-06-13.
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 RK4YC worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by RK4YC
Approximate centre of LO34, decoded 2026-06-13 18:16 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 | RK4YC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 06-13 18:20 | 40m | - / - | DL5MK | +18 / - | 2 | Partial capture |
| 06-13 18:17 | 40m | - / -7 | RD5Q | -6 / - | 3 | ✓ Closing fragment |
| 06-13 18:13 | 40m | -15 / - | BI6AN | - / - | 3 | Partial capture |
| 06-13 18:08 | 40m | -10 / - | UA3WG | - / -14 | 2 | ✓ Closing fragment |
| 06-13 18:06 | 40m | - / -9 | R1QF | -10 / - | 2 | Partial capture |
| 06-13 18:06 | 40m | - / 0 | RN2F | -4 / - | 3 | Partial capture |
| 06-13 18:03 | 40m | -9 / 0 | TA3NK | -8 / - | 4 | ✓ Closing observed |
| 06-13 17:58 | 40m | - / - | DJ1TU | -4 / - | 3 | Partial capture |
| 06-13 17:58 | 40m | -12 / -13 | DL2KBQ | +4 / - | 5 | ✓ Closing observed |
| 06-13 17:53 | 40m | -8 / -7 | UA4FKT | -1 / - | 5 | ✓ Closing observed |
| 06-13 17:50 | 40m | -11 / - | R2PA | +2 / - | 2 | ✓ Closing observed |
| 06-13 17:50 | 40m | - / - | RA3VX | -13 / - | 3 | Partial capture |
| 06-13 17:50 | 40m | -11 / - | UA6BCB | -8 / -12 | 4 | ✓ Closing observed |
| 05-28 15:25 | 40m | - / - | RL3QGD | -16 / - | 5 | Partial capture |
| 05-27 17:57 | 20m | +3 / - | EA1FUB | -7 / -17 | 9 | ✓ Full exchange observed |
| 05-27 17:55 | 20m | +5 / - | BD8SN | - / - | 6 | Partial capture |
| 05-27 17:53 | 20m | - / - | F4BJN | +6 / - | 5 | Partial capture |
| 05-27 17:52 | 20m | - / - | SV8IIQ | +7 / - | 11 | Partial capture |
| 05-27 17:52 | 20m | 0 / -2 | M0VGH | +1 / -13 | 5 | ✓ Full exchange observed |
| 05-27 17:48 | 20m | -4 / +4 | G0GOO | -10 / -14 | 6 | ✓ Full exchange observed |
| 05-27 17:44 | 20m | -1 / -18 | EB5AL | +2 / -20 | 9 | ✓ Full exchange observed |
| 05-27 17:43 | 20m | - / - | LZ1SAD | +4 / - | 3 | Partial capture |
| 05-27 17:43 | 20m | +4 / - | YL3NF | +7 / - | 4 | ✓ Closing observed |
| 05-27 17:39 | 20m | -4 / - | BD8SN | - / - | 3 | Partial capture |
| 05-27 17:38 | 20m | -3 / - | CR7BUJ | -16 / - | 2 | ✓ Closing observed |
| 05-27 17:36 | 20m | -2 / -9 | SM7RHI | -10 / -14 | 5 | ✓ Full exchange observed |
| 05-27 17:29 | 20m | -14 / - | DL3MIB | - / - | 2 | Partial capture |
| 05-27 17:28 | 20m | -10 / - | BD4RXZ | - / - | 2 | ✓ Closing fragment |
| 05-27 17:26 | 20m | -18 / - | IZ2DPX | - / -15 | 2 | ✓ Closing fragment |
| 05-27 17:22 | 20m | -12 / -9 | EA7Z | -8 / -17 | 5 | Partial capture |
| 05-27 17:20 | 20m | - / - | RV3YN | -19 / - | 2 | Partial capture |
| 05-27 17:17 | 20m | -14 / -14 | LA7OY | -18 / -17 | 5 | Partial capture |
| 05-27 17:11 | 20m | - / -19 | UN7BDZ | -16 / - | 2 | Partial capture |
| 05-27 17:11 | 20m | -9 / -13 | EA7Z | -9 / - | 4 | Partial capture |
| 05-27 17:09 | 20m | -7 / - | PD4FL | - / -20 | 3 | ✓ Closing fragment |
| 05-27 17:07 | 20m | +1 / - | EA8UP | - / - | 4 | Partial capture |
| 05-27 17:05 | 20m | -3 / - | RA9UES | -6 / - | 2 | ✓ Closing observed |
| 05-27 17:05 | 20m | - / -1 | UB6OAJ | -4 / - | 2 | Partial capture |
| 05-27 17:03 | 20m | +6 / -7 | UA6AHR | +8 / -19 | 5 | ✓ Full exchange observed |
| 05-27 17:01 | 20m | - / - | RV3YN | -23 / - | 6 | Partial capture |
| 05-27 16:59 | 20m | -6 / - | YO3WST | - / -22 | 3 | ✓ Closing fragment |
| 05-27 16:58 | 20m | -10 / - | F4IIX | - / - | 2 | Partial capture |
| 05-27 16:56 | 20m | -12 / - | EA8UP | - / - | 3 | Partial capture |
| 05-27 16:53 | 20m | -15 / - | OZ0HC | - / - | 2 | Partial capture |
| 05-27 16:52 | 20m | - / - | SV8IIQ | -11 / - | 10 | Partial capture |
| 05-27 16:49 | 40m | - / - | IK4LZH | +2 / - | 3 | Partial capture |
| 05-27 16:47 | 40m | - / -5 | UI5A | -5 / - | 5 | Partial capture |
| 05-27 16:43 | 40m | - / - | DF7GG | -4 / - | 2 | Partial capture |
| 05-27 16:41 | 40m | -19 / -10 | DL1HDL | -5 / - | 5 | Partial capture |
| 05-27 16:38 | 40m | - / - | DK2CC | +7 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180700 -5 1790 RK4YC RN2F +00 180815 -10 445 UA3WG RK4YC -14 (x2) 181130 -15 2250 RK4YC UA3DPM KO95 181315 -12 718 BI6AN RK4YC LO34 (x3) 181545 -12 718 CQ RK4YC LO34 (x2) 181700 -7 418 RK4YC RD5Q KO90 181700 -15 2349 RK4YC R1QF +02 181730 -5 403 RK4YC RD5Q R-07 (x2) 182030 +18 2853 RK4YC DL5MK JO61 (x2)
UTC dB Audio Message 175645 +10 1420 RK4YC SV8IIQ KM37 (x2) 175715 +7 596 BD8SN RK4YC LO34 175730 -7 630 RK4YC EA1FUB IN53 175745 +8 596 BD8SN RK4YC LO34 175745 +15 1420 RK4YC SV8IIQ KM37 175815 +10 626 EA1FUB RK4YC -17 (x8) 180245 -4 728 F5ASD RK4YC LO34
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.