RK4PA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO45

Receiver-side FT8 activity involving RK4PA, decoded by SO8OO in southeastern Poland. 206 related FT8 messages, 23 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 13 UTC dates. Heard between 2026-04-21 and 2026-06-28.

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

206
Related messages
23
CQ messages
13
UTC dates heard
-7 dB
Mean decoder S/N

Bands

80m 20m 40m 10m 160m
First seen: 2026-04-21
Last seen: 2026-06-28 15:48 UTC

Frequent QSO partners observed at SO8OO

Stations RK4PA worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by RK4PA

Approximate centre of LO45, decoded 2026-06-28 17:34 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 UTCBandRK4PA S/NCounterpartCounterpart S/NMsgsCapture
06-28 17:28 10m -18 / - PU3YFD - / -13 2 Partial capture
06-28 17:28 10m - / -4 F1PBZ +1 / - 2 Partial capture
06-28 17:27 10m -20 / - PD1HPB - / -14 2 ✓ Closing fragment
06-25 19:20 10m - / -7 PD0HLA -1 / - 2 ✓ Closing fragment
06-25 19:04 10m - / -19 PD1HBL -9 / - 2 Partial capture
06-25 18:54 10m - / - DL3NGN -2 / - 19 Partial capture
06-25 18:20 40m - / +8 R2APC -13 / - 2 Partial capture
06-25 18:14 40m - / -1 R5AV -8 / - 2 ✓ Closing fragment
06-25 18:12 40m - / -4 RM5F -12 / - 3 ✓ Closing fragment
06-25 05:17 20m - / - DF5AH -3 / - 2 Partial capture
06-24 10:51 10m - / +4 R6FMK -11 / - 3 ✓ Closing fragment
06-23 19:34 160m -14 / - R3IDH - / -22 3 ✓ Closing fragment
06-23 19:31 160m -14 / -19 RK3YWS +4 / -9 4 ✓ Full exchange observed
06-23 19:30 160m -16 / -12 RM5F -11 / -4 5 ✓ Full exchange observed
06-23 19:29 160m -18 / -6 RA6ATZ -13 / -3 4 ✓ Full exchange observed
06-23 19:22 160m - / -8 R7CD 0 / - 3 ✓ Closing fragment
06-23 19:21 160m -20 / - R9SAP - / 0 2 ✓ Closing fragment
06-23 19:20 160m -22 / -4 RT2P -12 / -3 4 ✓ Full exchange observed
06-22 05:37 20m - / - F5IXN -18 / - 3 Partial capture
06-22 05:35 20m -5 / -7 PA8DC -9 / -5 6 ✓ Full exchange observed
06-22 05:31 20m -5 / - EU6KA - / -14 2 ✓ Closing fragment
06-22 05:30 20m -6 / - R3DLZ - / -9 2 ✓ Closing fragment
06-22 05:24 20m -17 / - <...> - / -9 6 Partial capture
06-22 05:19 20m -6 / - UA3RBM - / -2 2 ✓ Closing fragment
06-22 05:16 20m -4 / - HI8CQ - / -15 5 Partial capture
06-22 05:13 20m -10 / - RD0B/P - / -5 2 Partial capture
06-22 05:09 20m -11 / - <...> - / -2 6 Partial capture
06-22 05:06 20m -10 / - UA1AOF - / -8 4 ✓ Closing fragment
06-22 05:02 20m -6 / - NY3H - / -16 2 Partial capture
06-22 05:00 20m -4 / - HK3AB - / -7 2 ✓ Closing fragment
06-22 04:59 20m -8 / - RV3IO - / -5 2 ✓ Closing fragment
06-22 04:58 20m -10 / - EA5JKT - / -12 2 ✓ Closing fragment
06-22 04:57 20m -6 / - OM0RX - / -10 2 ✓ Closing fragment
06-22 04:56 20m -8 / - F4HSB - / -11 2 ✓ Closing fragment
06-22 04:51 20m -10 / -14 V31DL -11 / -4 5 ✓ Full exchange observed
06-22 04:49 20m -12 / - XE1PM - / -12 4 ✓ Closing fragment
06-22 04:48 20m -10 / - KD2YCK - / -19 2 Partial capture
06-21 19:21 10m - / -12 PP5BP -18 / - 2 ✓ Closing fragment
06-21 19:04 10m - / 0 PC9K -2 / - 6 ✓ Closing fragment
06-21 19:01 10m - / -5 PD0LBY -9 / - 3 ✓ Closing fragment
06-20 08:37 10m -24 / -13 RZ5D -3 / - 4 ✓ Closing observed
06-20 08:35 10m - / +5 UA6B -10 / - 3 ✓ Closing fragment
06-20 07:38 10m - / +3 RA4ADF -12 / - 3 Partial capture
06-20 07:38 10m - / +3 RA7T +7 / - 3 ✓ Closing fragment
06-20 07:20 10m - / -18 RD6OW -8 / - 2 ✓ Closing fragment
06-20 07:12 10m - / +4 R7NO -4 / - 3 ✓ Closing fragment
06-20 07:12 10m - / +3 R7DX -10 / - 3 ✓ Closing fragment
06-20 07:06 10m - / - RC5F +2 / - 2 Partial capture
06-20 07:05 10m - / +9 RA6AR -18 / - 2 ✓ Closing fragment
06-20 06:56 10m - / -3 RD7LO 0 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

10m 
UTC    dB Audio  Message
192045  +1 2678  RK4PA PD0HLA -07 (x2)
172630 -23 2158  CQ RK4PA LO45                         a1
172645 -12 2159  RK4PA M0BEW -02
172700 -20 2159  PD1HPB RK4PA -14 (x2)
172815  +1 2833  RK4PA F1PBZ -04
172830 -17 2158  PU3YFD RK4PA -13
172845  +1 2833  RK4PA F1PBZ -04
172900 -20 2158  PU3YFD RK4PA -07
173100 -19 2157  CQ SA RK4PA LO45 (x2)
173300 -19 2155  PU2XEE RK4PA R-16
173400 -21 2154  CQ SA RK4PA LO45
174815 -17 1162  RK4PA R1BGR 73
40m 
UTC    dB Audio  Message
181130 -12 2302  RK4PA R5AV +01
181230 -14  741  RK4PA RM5F KO85 (x3)
181400  -7 2302  RK4PA R5AV -01 (x2)
181500 -18 1479  RK4PA R3KHR -19
182030 -13 2456  RK4PA R2APC KO85 (x2)
20m 
UTC    dB Audio  Message
053215  -7 1067  EU6KA RK4PA RR73
053415 -10 2036  CQ RK4PA LO45 (x2)
053530  -9 2036  RK4PA PA8DC JO21
053615  -5 2413  PA8DC RK4PA -05
053630  -8 2036  RK4PA PA8DC R-07 (x2)
053700 -22 2096  RK4PA F5IXN JN23
053730 -14 2036  RK4PA PA8DC R-07 (x2)
053800 -15 2097  RK4PA F5IXN JN23 (x2)
051700  +0 2984  RK4PA DF5AH JO41 (x2)
053615 +12 2859  RK4PA IQ4JO JN63
160m 
UTC    dB Audio  Message
193000 -11  973  RK4PA RM5F KO85
193000 -13 1804  RK4PA RA6ATZ 73
193015 -18 1571  RM5F RK4PA -04
193030 -11  972  RK4PA RM5F R-12
193045 -15 1571  RM5F RK4PA RR73
193100 -10  973  RK4PA RM5F 73
193115 -13 1571  RK3YWS RK4PA -09
193130  +5  905  RK4PA RK3YWS R-19
193145 -15 1571  RK3YWS RK4PA RR73
193200  +4  905  RK4PA RK3YWS 73
193215 -15 1571  CQ RK4PA LO45 (x2)
193445 -14 1570  R3IDH RK4PA -22 (x3)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.