R5ZJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R5ZJ, decoded by SO8OO in southeastern Poland. 195 related FT8 messages, 73 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 21 UTC dates. Heard between 2026-05-25 and 2026-08-21.
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 R5ZJ worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by R5ZJ
Approximate centre of KO81, decoded 2026-08-21 17:18 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 | R5ZJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 17:18 | 160m | - / - | HA5OLA | -11 / - | 3 | Partial capture |
| 08-21 17:15 | 80m | -2 / -1 | RM3ZR | 0 / -5 | 4 | ✓ Full exchange observed |
| 08-02 19:13 | 160m | +5 / - | OH5LF | - / +1 | 4 | Partial capture |
| 08-02 19:11 | 160m | +5 / - | R7LB | -4 / -3 | 5 | ✓ Full exchange observed |
| 08-02 19:10 | 160m | +4 / -3 | R4FDD | -10 / -5 | 4 | ✓ Full exchange observed |
| 08-02 19:08 | 160m | +2 / +8 | RD7O | -4 / -5 | 5 | ✓ Full exchange observed |
| 07-27 20:49 | 80m | +7 / -4 | DL3AS | +2 / -4 | 4 | ✓ Full exchange observed |
| 07-27 20:48 | 80m | +11 / +6 | DO2RG | -13 / -9 | 4 | ✓ Full exchange observed |
| 07-27 20:47 | 80m | +2 / -6 | ON5JDB | -12 / -10 | 4 | ✓ Full exchange observed |
| 07-27 20:41 | 160m | -1 / -5 | R2EA/P | -16 / - | 3 | ✓ Closing observed |
| 07-21 18:36 | 80m | +1 / - | UA9ZZ | - / -14 | 4 | ✓ Closing fragment |
| 07-21 18:34 | 80m | +1 / - | R6ZEJ | +3 / 0 | 3 | Partial capture |
| 07-18 18:57 | 160m | -17 / - | R3DPH | - / -1 | 3 | ✓ Closing fragment |
| 07-09 23:31 | 80m | -2 / - | ON3ABR | - / -11 | 2 | Partial capture |
| 07-09 23:30 | 80m | +1 / -3 | DG1KPC | +19 / - | 3 | ✓ Closing observed |
| 07-09 23:26 | 80m | +4 / +1 | DG1KPC | +17 / -11 | 4 | ✓ Full exchange observed |
| 07-09 23:23 | 80m | -1 / -1 | DO1OAS | -5 / -20 | 4 | ✓ Full exchange observed |
| 07-09 23:21 | 80m | +2 / -10 | MM0KQC | 0 / -11 | 4 | ✓ Full exchange observed |
| 07-09 23:20 | 80m | 0 / 0 | M0MLS | -7 / -19 | 4 | ✓ Full exchange observed |
| 07-09 23:18 | 80m | +5 / - | VU2MSA | - / -15 | 3 | Partial capture |
| 07-07 18:58 | 160m | +2 / - | JA7EVP | - / -20 | 2 | ✓ Closing fragment |
| 07-07 18:29 | 80m | -8 / - | R9SAP | - / +2 | 2 | ✓ Closing fragment |
| 06-30 19:18 | 80m | -2 / -10 | II8WWA | -11 / -14 | 4 | ✓ Full exchange observed |
| 06-30 19:16 | 80m | -2 / - | JE2EBT | - / -13 | 2 | ✓ Closing fragment |
| 06-30 19:15 | 80m | -1 / 0 | UA3SCF | +2 / -3 | 4 | ✓ Full exchange observed |
| 06-30 19:12 | 160m | -6 / -22 | DL8OH | +2 / -7 | 4 | ✓ Full exchange observed |
| 06-30 19:11 | 160m | -8 / - | SP2FWC | - / -16 | 2 | ✓ Closing fragment |
| 06-28 18:05 | 160m | -10 / +1 | RN3QTS | -6 / 0 | 5 | ✓ Full exchange observed |
| 06-28 18:02 | 160m | -12 / - | RA6ATZ | - / -5 | 2 | ✓ Closing fragment |
| 06-27 19:30 | 80m | -3 / - | RC6OD | - / +4 | 2 | Partial capture |
| 06-27 19:29 | 80m | 0 / -13 | TA4RC | -8 / -8 | 4 | ✓ Full exchange observed |
| 06-27 19:25 | 80m | +4 / - | R1BRY | - / -19 | 5 | Partial capture |
| 06-25 19:16 | 160m | -4 / 0 | R8LCX | -16 / 0 | 5 | ✓ Full exchange observed |
| 06-22 19:32 | 80m | +6 / - | JA5MHD | - / -10 | 2 | ✓ Closing fragment |
| 06-22 19:27 | 80m | +1 / - | DF26FIFA | - / -17 | 6 | Partial capture |
| 06-22 19:25 | 80m | +10 / +6 | RV3X | +4 / +1 | 4 | ✓ Full exchange observed |
| 06-22 19:22 | 80m | -5 / +6 | RC6BB | -6 / -14 | 6 | ✓ Full exchange observed |
| 06-22 19:21 | 80m | -5 / - | RV3X | - / +2 | 2 | Partial capture |
| 06-21 18:32 | 80m | 0 / - | R6AO | - / -18 | 3 | ✓ Closing fragment |
| 06-21 18:30 | 80m | +2 / -17 | IT9IVN | -6 / -13 | 5 | ✓ Full exchange observed |
| 06-21 18:29 | 80m | 0 / - | R2DP | -2 / -4 | 3 | ✓ Closing observed |
| 06-21 18:23 | 80m | +3 / - | R4HLO | - / -10 | 3 | Partial capture |
| 06-19 19:28 | 80m | -13 / - | YB1SDL | - / -15 | 7 | ✓ Closing fragment |
| 06-19 19:23 | 80m | -12 / 0 | RL3F | -14 / -3 | 4 | ✓ Full exchange observed |
| 06-19 19:13 | 160m | -19 / +2 | R3LG | -5 / +1 | 3 | ✓ Full exchange observed |
| 06-19 19:03 | 160m | -15 / - | RN3DDW/P | - / -9 | 3 | ✓ Closing fragment |
| 06-19 19:01 | 160m | -16 / - | UA4SN | - / -12 | 2 | ✓ Closing fragment |
| 06-19 18:58 | 80m | -12 / -19 | SP1TMH | -13 / - | 3 | ✓ Closing observed |
| 06-19 18:55 | 80m | -13 / +1 | R3BDQ | -12 / 0 | 4 | ✓ Full exchange observed |
| 06-19 18:55 | 80m | -14 / - | UA4HBJ | -14 / -2 | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 191045 -8 1343 R5ZJ R4FDD RR73 191100 +4 2155 R4FDD R5ZJ 73 191145 -6 1895 R5ZJ R7LB LN17 191200 +6 2155 R7LB R5ZJ -03 191215 -3 1895 R5ZJ R7LB R+15 191230 +4 2155 R7LB R5ZJ RR73 191245 -4 1895 R5ZJ R7LB 73 191315 +5 2155 OH5LF R5ZJ +01 (x4) 171815 -7 2289 CQ R5ZJ KO81 171830 -14 1555 R5ZJ HA5OLA JN97 (x3)
UTC dB Audio Message 204830 +12 2163 DO2RG R5ZJ RR73 204845 -16 1420 R5ZJ DO2RG 73 204900 +5 2163 DL3AS R5ZJ -04 204915 -2 1890 R5ZJ DL3AS R-04 204930 +9 2162 DL3AS R5ZJ RR73 204945 +5 1890 R5ZJ DL3AS 73 154545 -19 2163 RA9MAI R5ZJ -16 154645 -20 2163 UA6EU R5ZJ -10 171345 -8 1934 CQ R5ZJ KO81 (x3) 171545 -3 2295 RM3ZR R5ZJ -05 171600 +1 2295 R5ZJ RM3ZR R-01 171615 -2 2295 RM3ZR R5ZJ RR73 171630 -1 2295 R5ZJ RM3ZR 73
UTC dB Audio Message 193815 -12 2196 VK5PO/P R5ZJ RR73 193945 -14 2196 TA3ZZ R5ZJ RR73 162045 -15 1800 R5ZJ UD6AVY 73
UTC dB Audio Message 083545 -4 2635 R5ZJ 4X1UF R-16 (x2)
UTC dB Audio Message 081645 -13 1478 UA9QFF R5ZJ RR73 081715 -15 1918 LZ4VR R5ZJ -05 081730 -15 1918 R5ZJ LZ4VR R+07 081745 -8 1918 LZ4VR R5ZJ -05 081800 -16 1918 R5ZJ LZ4VR R+07 081815 -5 1918 LZ4VR R5ZJ RR73 081830 -2 1918 R5ZJ LZ4VR 73 082315 -11 2854 R5ZJ DL1BBO JO43 (x3) 082530 -5 2136 RV9CD R5ZJ -05 082745 -14 2135 TA3ZZ R5ZJ -10 (x2)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.