R4ZZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO35

Receiver-side FT8 activity involving R4ZZ, decoded by SO8OO in southeastern Poland. 2,877 related FT8 messages, 2,271 CQ messages, observed on 160m, 80m, 60m, 40m, 20m, 10m, across 41 UTC dates. Heard between 2026-05-24 and 2026-08-22.

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

2,877
Related messages
2,271
CQ messages
41
UTC dates heard
-9 dB
Mean decoder S/N

Bands

80m 20m 40m 60m 10m 160m
First seen: 2026-05-24
Last seen: 2026-08-22 00:27 UTC

Frequent QSO partners observed at SO8OO

Stations R4ZZ worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by R4ZZ

Approximate centre of LO35, decoded 2026-08-22 02:27 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 UTCBandR4ZZ S/NCounterpartCounterpart S/NMsgsCapture
08-22 02:24 40m -10 / - KC4DPT - / -9 2 Partial capture
08-22 02:10 40m -12 / -16 K1JAK -9 / - 4 ✓ Closing observed
08-22 02:02 40m - / -7 WK1O +9 / - 3 ✓ Closing fragment
08-22 01:42 40m - / - KO4PRE -8 / - 2 Partial capture
08-22 01:13 40m - / -7 G1CEC -16 / - 2 Partial capture
08-22 00:16 40m -2 / - EA4DZR -8 / -6 6 Partial capture
08-22 00:11 40m -4 / -11 PD2TX -1 / +5 10 ✓ Full exchange observed
08-22 00:06 40m - / -16 SP1ZMO -7 / - 3 Partial capture
08-22 00:04 40m -4 / - W1XI - / -11 2 ✓ Closing fragment
08-22 00:02 40m -7 / - HI3JMS - / +4 3 Partial capture
08-21 23:54 40m -6 / - PJ2LS - / -12 15 Partial capture
08-21 23:53 40m -11 / - KN1OBI - / -14 3 Partial capture
08-21 23:49 40m -10 / - PJ2LS - / -12 2 Partial capture
08-21 23:44 40m -14 / - WD1W - / -17 5 Partial capture
08-21 23:38 40m -10 / - HI8JCD - / +10 3 Partial capture
08-21 23:32 40m -8 / -11 CT2IGO -10 / +9 5 Partial capture
08-21 23:31 40m -8 / -17 RY3F +6 / 0 5 ✓ Full exchange observed
08-21 23:15 40m -11 / -15 R2BIU +4 / +3 3 ✓ Full exchange observed
08-21 23:09 40m - / - IK4IDY -8 / - 2 Partial capture
08-21 22:56 40m -6 / -10 F4VTR 0 / -6 5 ✓ Full exchange observed
08-21 22:51 40m -8 / - ZV8R - / - 3 ✓ Closing fragment
08-21 22:50 40m -10 / - WK1O - / -17 2 Partial capture
08-21 22:48 40m -5 / - ZV8R - / -10 3 Partial capture
08-21 22:19 40m -6 / - RD9M/3 - / -2 3 Partial capture
08-21 22:17 40m -8 / -7 UA0SCF -20 / +10 4 ✓ Full exchange observed
08-21 22:13 40m -9 / - RD9M/3 - / +8 5 Partial capture
08-21 22:09 40m -12 / -13 CT2GQA -13 / 0 9 ✓ Full exchange observed
08-21 21:59 40m -13 / - <...> - / - 8 Partial capture
08-21 21:56 40m -5 / - CX9ACP - / -24 3 Partial capture
08-21 21:52 40m -9 / - <...> - / +10 5 Partial capture
08-21 20:29 40m -8 / - R1BQW/M - / +1 2 Partial capture
08-21 20:19 40m -10 / - R1BQW/M - / +6 4 Partial capture
08-21 20:14 40m -11 / -7 DG5PW -3 / 0 11 ✓ Full exchange observed
08-21 20:11 40m -11 / - <...> - / -9 4 Partial capture
08-21 20:07 40m -11 / - JH5LCN - / -19 8 Partial capture
08-21 20:02 40m -10 / - <...> - / -15 7 Partial capture
08-21 20:00 40m -12 / - RZ5D - / -17 3 Partial capture
08-21 19:57 40m -10 / - MX0HFC - / +3 3 ✓ Closing fragment
08-21 19:46 80m - / -15 UF4S/P -15 / - 2 Partial capture
08-21 19:32 80m - / - RU3T -1 / - 2 ✓ Closing fragment
08-21 19:14 40m - / 0 R3NCG -4 / - 2 ✓ Closing fragment
08-21 19:02 40m -6 / - R2ZO - / -3 2 ✓ Closing fragment
08-21 18:59 40m -3 / -7 DM2BR +5 / - 6 ✓ Full exchange observed
08-21 18:54 40m -8 / - UI6O -4 / -2 3 ✓ Closing observed
08-21 18:46 40m -2 / -11 9A3MA -3 / -1 4 ✓ Full exchange observed
08-21 18:43 40m -2 / - CT2HEX - / -13 6 Partial capture
08-21 18:33 40m -2 / - XU7O - / -24 4 Partial capture
08-21 18:25 40m -2 / - R0LM - / -8 6 ✓ Closing fragment
08-21 18:13 40m 0 / 0 LB5CK -12 / -22 4 ✓ Full exchange observed
08-21 18:09 40m +3 / -14 R2DVN -10 / +2 3 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
021200  -7 2744  R4ZZ K1JAK R-16
021215 -12 2744  K1JAK R4ZZ RR73
021245  -9 2744  CQ R4ZZ LO35 (x2)
021415  -9 2744  PY2WC R4ZZ R-07
021515 -11 2744  CQ R4ZZ LO35                          a1 (x6)
022415 -10 2744  KC4DPT R4ZZ -09 (x2)
022615 -13 2744  CQ R4ZZ LO35                          a1 (x2)
80m 
UTC    dB Audio  Message
184700  +1 2581  R4ZZ RD3MF KO97 (x2)
202300  -9 2522  R4ZZ RO2E/M +06
202400  -1 1600  R4ZZ R2GFD KO92
202400  +0 1694  R4ZZ RM5F KO85 (x3)
202600  -6 1600  R4ZZ R2GFD KO92 (x3)
193230  -3  488  R4ZZ RU3T 73 (x2)
193800 -24 2103  R4ZZ RA9FDR 73
194630 -13 1216  R4ZZ UF4S/P R-15 (x2)
160m 
UTC    dB Audio  Message
195745 -14 1545  R4ZZ UB1Q -16 (x2)
200345 -12 1076  R4ZZ RU4SO -11 (x2)
200830 +13 2233  R4ZZ R50RKZ -21 (x2)
201345  +2 2167  R4ZZ YL3CW KO36 (x3)
20m 
UTC    dB Audio  Message
140100  -8  658  R4ZZ R70OBN R-13 (x2)
180715 -15 2049  R4ZZ 4L1AX RR73
133330  -1  296  R4ZZ F8MYM JN09 (x3)
10m 
UTC    dB Audio  Message
093700 -21 1628  R4ZZ R6LE R-24 (x2)
100330  -4 2765  R4ZZ <...> R-18 (x2)
131430 -21 1655  R4ZZ F6JON/QRP R-13
134045 -17 2118  R4ZZ UA1ABO 73
054345 -16 1683  R4ZZ RA1AOB KO59 (x3)
064430  -8 2572  R4ZZ DH5BM R-16
071915  +4  619  R4ZZ 9A2RD +00 (x4)
072345  -3  548  R4ZZ IV3GHY -16

Decoder S/N history by band

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