RK4HS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RK4HS, decoded by SO8OO in southeastern Poland. 1,847 related FT8 messages, 895 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 61 UTC dates. Heard between 2026-05-25 and 2026-08-23.
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 RK4HS worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by RK4HS
Approximate centre of LO43, decoded 2026-08-23 18:41 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 | RK4HS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-23 18:41 | 80m | - / -13 | 9A3EYA | +5 / - | 5 | ✓ Closing fragment |
| 08-23 18:28 | 80m | -13 / -1 | R5ACQ | +5 / -6 | 5 | ✓ Full exchange observed |
| 08-23 18:16 | 80m | -12 / - | R4PHH | - / -14 | 3 | ✓ Closing fragment |
| 08-23 18:06 | 80m | -16 / - | R9FDM | -22 / - | 3 | ✓ Closing observed |
| 08-23 18:04 | 80m | -14 / +4 | RU3XK | +2 / -8 | 5 | ✓ Full exchange observed |
| 08-23 18:03 | 80m | - / -2 | RC2DD | +6 / - | 2 | ✓ Closing fragment |
| 08-23 17:52 | 80m | - / +3 | RW4CCW | -2 / - | 2 | ✓ Closing fragment |
| 08-23 17:51 | 80m | -4 / 0 | R1530IG | -4 / -1 | 3 | Partial capture |
| 08-23 17:17 | 40m | - / -7 | RJ6B | +5 / - | 2 | ✓ Closing fragment |
| 08-23 17:06 | 40m | -11 / -11 | RM3ZR | -1 / - | 3 | ✓ Closing observed |
| 08-23 16:44 | 40m | - / - | HA1DSL | -18 / - | 2 | Partial capture |
| 08-23 16:25 | 40m | -21 / +2 | R3WDW | +2 / - | 3 | ✓ Closing observed |
| 08-23 16:23 | 40m | -18 / - | RW0AE | - / -8 | 2 | ✓ Closing fragment |
| 08-23 16:19 | 40m | -18 / +3 | R4HNW | -5 / - | 3 | ✓ Closing observed |
| 08-23 16:14 | 40m | -16 / - | RL1I/P | - / - | 3 | Partial capture |
| 08-23 16:07 | 40m | -17 / - | R5GG | - / -2 | 6 | ✓ Closing fragment |
| 08-23 16:04 | 40m | -20 / -6 | RA3SO | -12 / - | 4 | ✓ Closing observed |
| 08-23 12:59 | 20m | -22 / -2 | RW6HPS | -11 / - | 3 | ✓ Closing observed |
| 08-23 12:55 | 20m | -16 / - | DL1R | +6 / -17 | 6 | Partial capture |
| 08-23 12:52 | 20m | - / -15 | ON1AJ | +7 / - | 3 | ✓ Closing fragment |
| 08-22 19:50 | 80m | -19 / - | RN3H | -24 / -17 | 4 | ✓ Closing observed |
| 08-22 19:37 | 80m | -18 / -5 | R2SDZ | -7 / -10 | 6 | ✓ Full exchange observed |
| 08-22 19:34 | 80m | -15 / +3 | R3PY | -13 / -6 | 4 | ✓ Full exchange observed |
| 08-22 17:31 | 80m | -21 / - | R5GG | - / - | 5 | Partial capture |
| 08-22 17:26 | 40m | - / -17 | F1PBZ | -6 / - | 4 | Partial capture |
| 08-22 17:23 | 40m | -18 / - | RA2FGK | -17 / -11 | 4 | ✓ Closing observed |
| 08-22 17:17 | 40m | -17 / - | UA9OIY | - / -7 | 6 | ✓ Closing fragment |
| 08-22 17:14 | 40m | - / - | R1TET | -9 / - | 2 | ✓ Closing fragment |
| 08-22 16:45 | 40m | -17 / -3 | UD8F | -12 / - | 3 | ✓ Closing observed |
| 08-22 16:43 | 40m | -18 / - | UN7DCS | - / - | 2 | ✓ Closing fragment |
| 08-21 20:06 | 20m | - / - | DK2SP | +5 / - | 11 | Partial capture |
| 08-20 19:38 | 80m | - / - | YT1DDL | -3 / - | 3 | Partial capture |
| 08-20 19:37 | 80m | -19 / +9 | UG4L | 0 / +2 | 4 | ✓ Full exchange observed |
| 08-20 19:27 | 80m | -12 / - | S58MU | - / -15 | 8 | Partial capture |
| 08-20 19:20 | 80m | -18 / -17 | S58MU | +8 / -15 | 3 | Partial capture |
| 08-20 19:12 | 80m | - / -6 | RA3LCI | -15 / - | 3 | ✓ Closing fragment |
| 08-20 19:07 | 80m | -13 / -7 | R5AV | +2 / - | 3 | ✓ Closing observed |
| 08-20 17:26 | 40m | -15 / -20 | IK4LZH | +5 / -11 | 5 | ✓ Full exchange observed |
| 08-20 17:22 | 40m | - / +2 | R6ZCE | -1 / - | 3 | ✓ Closing fragment |
| 08-20 17:19 | 40m | -14 / - | RK3AW | - / -2 | 2 | ✓ Closing fragment |
| 08-20 11:15 | 20m | - / -11 | RA3Y | -12 / - | 2 | ✓ Closing fragment |
| 08-18 17:51 | 40m | - / +3 | R3KHR | -18 / - | 2 | ✓ Closing fragment |
| 08-17 19:39 | 40m | - / - | UB3LBU | -10 / - | 2 | ✓ Closing fragment |
| 08-17 19:10 | 40m | - / -4 | SN1A | -16 / - | 2 | Partial capture |
| 08-17 18:28 | 40m | -20 / +8 | OK2UPG | -12 / - | 4 | ✓ Closing observed |
| 08-17 18:27 | 40m | - / - | RA9AJ | -15 / - | 2 | ✓ Closing fragment |
| 08-16 19:03 | 80m | -22 / -17 | UB3YCK | +2 / - | 5 | ✓ Closing observed |
| 08-16 18:55 | 80m | -9 / - | RA3QM | - / -5 | 4 | ✓ Closing fragment |
| 08-16 18:54 | 80m | -9 / - | RA4FHO | -12 / -2 | 3 | ✓ Closing observed |
| 08-16 18:51 | 80m | -10 / - | R4HLG | -22 / +3 | 5 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 182700 -13 1902 CQ RK4HS LO43 (x3) 182830 -14 1901 R5ACQ RK4HS LO43 182845 +5 2076 RK4HS R5ACQ -01 182900 -14 1901 R5ACQ RK4HS R-06 182915 +5 2076 RK4HS R5ACQ RR73 182930 -11 1901 R5ACQ RK4HS 73 183030 -10 1902 CQ RK4HS LO43 (x2) 184145 +13 2262 RK4HS 9A3EYA JN86 (x5)
UTC dB Audio Message 163100 -7 1888 RK4HS R1530IG +02 163130 -5 1889 RK4HS RR73; UB4HPQ <...> -08 163530 +1 2138 RK4HS RN5AA +02 164400 -20 1934 RK4HS HA1DSL JN86 164415 -15 1934 CQ RK4HS LO43 164430 -15 1934 RK4HS HA1DSL JN86 164445 -12 1933 CQ RK4HS LO43 170115 -7 1933 R3TAW RK4HS RRR 170345 -8 1933 CQ RK4HS LO43 170530 +2 2164 RK4HS SP5CTY KO02 170600 -1 1934 RK4HS RM3ZR R-11 (x2) 170645 -11 1933 RM3ZR RK4HS 73 171730 +6 706 RK4HS RJ6B -07 (x2)
UTC dB Audio Message 201015 +5 721 RK4HS DK2SP JN58 (x3) 125200 +9 1218 RK4HS ON1AJ JO20 (x3) 125530 +6 2659 RK4HS DL1R JN58 (x2) 125615 -16 1967 DL1R RK4HS -17 125630 +6 2659 RK4HS DL1R JN58 (x3) 125930 -11 1967 RK4HS RW6HPS R-02 (x2) 130015 -22 1967 RW6HPS RK4HS 73
UTC dB Audio Message 194230 +1 2397 RK4HS RR73; RA3TOS <...> -12 194700 -8 924 RK4HS RO7A KN95 (x2) 194730 -18 1496 RK4HS RA3WY KO81 194800 -10 925 RK4HS RO7A KN95 194830 -17 1496 RK4HS RA3WY KO81 (x2) 195200 -24 1948 RK4HS RT2P -08
UTC dB Audio Message 132300 -18 1674 RK4HS RW1C -07 (x2) 112330 -20 1795 RK4HS F4FSY RR73
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.