R4DI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO42

Receiver-side FT8 activity involving R4DI, decoded by SO8OO in southeastern Poland. 649 related FT8 messages, 311 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 29 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

649
Related messages
311
CQ messages
29
UTC dates heard
-9 dB
Mean decoder S/N

Bands

80m 20m 40m 10m 160m
First seen: 2026-05-24
Last seen: 2026-08-22 16:15 UTC

Frequent QSO partners observed at SO8OO

Stations R4DI worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by R4DI

Approximate centre of LO42, decoded 2026-08-22 18:06 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 UTCBandR4DI S/NCounterpartCounterpart S/NMsgsCapture
08-22 18:13 40m - / -4 UB5O/M 0 / - 2 Partial capture
08-22 18:10 40m - / -16 RD3FY +1 / - 3 ✓ Closing fragment
08-22 17:58 40m -6 / -2 OK1XQD +4 / -13 7 ✓ Full exchange observed
08-22 17:58 40m -8 / 0 UA4SN -13 / +3 6 ✓ Full exchange observed
08-22 17:52 40m -6 / -10 DH2YBG -6 / -9 11 ✓ Full exchange observed
08-22 17:45 40m - / +2 R2ANL -9 / - 3 ✓ Closing fragment
08-22 17:43 40m -6 / +3 R2BRU -5 / - 5 ✓ Full exchange observed
08-22 17:40 40m - / -10 R3TAW -2 / - 3 ✓ Closing fragment
08-22 17:38 40m -8 / -6 RA4HTH -10 / - 2 ✓ Closing observed
08-22 17:35 40m -8 / - RM9WU - / +3 2 ✓ Closing fragment
08-22 17:32 40m -8 / -1 R3DMS -1 / - 5 ✓ Closing observed
08-22 17:25 40m - / -1 R4PHH -20 / - 3 ✓ Closing fragment
08-22 17:21 40m -17 / - RN3RHQ - / +10 3 ✓ Closing fragment
08-22 17:13 40m -8 / +5 R1TET -17 / - 5 ✓ Full exchange observed
08-22 17:02 40m - / - PF1B -9 / - 3 Partial capture
08-22 16:58 40m -16 / -6 R3RAA -10 / +3 4 ✓ Full exchange observed
08-22 16:55 40m - / +8 EW7LZ -3 / - 3 ✓ Closing fragment
08-22 16:53 40m - / -14 F1PBZ -4 / - 4 Partial capture
08-22 16:51 40m -14 / - UN7DCS - / -10 2 ✓ Closing fragment
08-22 16:48 40m -12 / - UB4FJC - / +1 2 ✓ Closing fragment
08-22 16:42 40m -15 / - R4PFY -18 / +7 3 ✓ Closing observed
08-22 16:34 40m - / -5 EW4VX -8 / - 2 Partial capture
08-22 16:28 40m - / -1 EW4VX -10 / - 2 Partial capture
08-22 16:28 40m - / - OH/SM5MRW -14 / - 2 Partial capture
08-22 16:25 40m - / +2 UA3WG -8 / - 2 Partial capture
08-22 16:22 40m -13 / - R4UAS - / -11 3 ✓ Closing fragment
08-18 18:37 40m +8 / - <...> - / -15 2 Partial capture
08-18 18:31 40m +3 / - A61FJ - / +5 5 ✓ Closing fragment
08-18 18:23 40m +1 / - <...> - / -24 9 Partial capture
08-18 18:17 40m -6 / - 8S2A - / -14 4 ✓ Closing fragment
08-12 20:31 80m +1 / - RI0FA - / -23 3 Partial capture
08-12 20:25 80m +5 / - RI0FA - / -23 3 Partial capture
08-12 20:19 80m +6 / - RA3TVW - / +5 2 ✓ Closing fragment
08-12 20:15 80m +13 / - RI0FA - / -21 4 Partial capture
08-12 20:11 80m +12 / - RU3OW -3 / +1 4 ✓ Full exchange observed
08-12 20:06 80m +8 / - R8CKD - / -6 2 ✓ Closing fragment
08-12 19:47 80m +2 / - RV3SBS/P - / -2 2 ✓ Closing fragment
08-12 19:45 80m -1 / -4 R1CBH/P -10 / -6 5 ✓ Full exchange observed
08-12 19:44 80m +2 / - RI0FA - / -21 2 Partial capture
08-12 19:38 80m +4 / - RI0FA - / -21 2 Partial capture
08-12 19:25 80m - / - YO4LUP -2 / - 2 Partial capture
08-12 19:25 80m - / +5 R2FEA +14 / - 2 ✓ Closing fragment
08-12 08:43 10m - / -13 R6DWD -6 / - 2 Partial capture
08-11 15:11 20m -6 / - 9J2FI - / -5 2 ✓ Closing fragment
08-04 08:47 20m -21 / 0 UB6OCD -9 / 0 3 ✓ Full exchange observed
07-28 15:13 40m - / - SP4CGJ -18 / - 8 Partial capture
07-28 13:07 20m - / 0 M0MLS -18 / - 6 Partial capture
07-28 13:03 20m - / - F4AWT -14 / - 3 Partial capture
07-28 13:01 20m - / - 2E0OEW -15 / - 2 Partial capture
07-28 12:47 20m - / - F4AWT -15 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
180045 -12 1714  R4DI UA4SN 73
180100  -9 1879  CQ R4DI LO42 (x9)
181015  +0 2747  R4DI RD3FY KO85 (x3)
181345  +4 1284  R4DI UB5O/M R-04 (x2)
80m 
UTC    dB Audio  Message
201715 +15 2235  RI0FA R4DI -21 (x2)
201815  +4 2235  CQ R4DI LO42                          a1
201915  +5 1237  RA3TVW R4DI R+05 (x2)
202015  +5 1237  CQ R4DI LO42
202045 +15 2700  RI0FA R4DI -20
202115 +13 2292  EA8UP R4DI -14
202315 +10 2292  RI8FA R4DI -23
202515  +6 2205  RI0FA R4DI -23 (x6)
10m 
UTC    dB Audio  Message
110430 -21 2194  CQ R4DI LO42
110445 -16 2193  R4DI IU4PPL JN54
110600 -17 2194  CQ R4DI LO42 (x2)
110700 -21 2194  RV6HSN R4DI -08
110945 -21 2193  R4DI R7OV R+18
165315 -18 2263  EA1IIF R4DI RR73
195700 -21 2074  CP6CL R4DI -01 (x2)
200045 -21 2074  PT9TI R4DI -10 (x2)
092545 -17 1313  R1ZH R4DI RR73
093045 -24 1601  R4DI RW6HP LN14
084330  -7  746  R4DI R6DWD -13 (x2)
20m 
UTC    dB Audio  Message
130730 -16 2072  R4DI M0MLS R+00 (x6)
084715 -21 1948  UB6OCD R4DI +00
084730  -9  382  R4DI UB6OCD R+00 (x2)
085330 -16 1948  CS8ABF R4DI RR73
171900 -16 1718  UA2FFD R4DI RR73
171930 -18 1718  CQ R4DI LO42
172100 -12 1719  OH1NHX R4DI -02
151130  -5 1676  9J2FI R4DI -05 (x2)
160m 
UTC    dB Audio  Message
200515  -8 1946  OM2WQ R4DI -06
200530 +11 1497  R4DI OM2WQ R-03
200545  -8 1946  OM2WQ R4DI RR73
200600  +9 1497  R4DI OM2WQ 73
185215  -9 2338  <...> R4DI -15 (x4)
185445  -8 2338  CQ R4DI LO42 (x3)
185615  -9 2338  <...> R4DI -15 (x4)

Decoder S/N history by band

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