RA4FUP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LO12

Receiver-side FT8 activity involving RA4FUP, decoded by SO8OO in southeastern Poland. 190 related FT8 messages, 43 CQ messages, observed on 40m, 20m, across 8 UTC dates. Heard between 2026-06-03 and 2026-08-20.

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

190
Related messages
43
CQ messages
8
UTC dates heard
-8 dB
Mean decoder S/N

Bands

First seen: 2026-06-03
Last seen: 2026-08-20 18:01 UTC

Activity Heatmap

Locator transmitted by RA4FUP

Approximate centre of LO12, decoded 2026-08-20 19:54 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 UTCBandRA4FUP S/NCounterpartCounterpart S/NMsgsCapture
08-20 19:58 40m - / - OT8T -11 / - 2 Partial capture
08-20 19:54 40m -5 / -6 SP5PDA -10 / - 3 ✓ Closing observed
08-20 19:39 40m - / -4 RA3M +4 / - 2 ✓ Closing fragment
08-20 19:31 40m -6 / -16 R2FBW -6 / -11 10 ✓ Full exchange observed
08-20 19:28 40m -7 / -4 RU3KA -7 / -5 5 ✓ Full exchange observed
08-20 19:20 40m - / -11 R4UAS -13 / - 3 ✓ Closing fragment
08-20 19:16 40m -8 / - RA6LTD -5 / -6 2 ✓ Closing observed
08-20 19:13 40m - / - RA6LTD -6 / - 2 Partial capture
08-20 19:12 40m - / - BG2GWN -11 / - 4 Partial capture
08-20 19:12 40m - / -7 UB5O/M -16 / - 2 ✓ Closing fragment
08-20 19:06 40m -3 / - UF5F - / -6 8 Partial capture
08-20 18:45 40m - / -5 R4FV +4 / - 2 Partial capture
08-20 18:33 40m - / - IN3IZQ -8 / - 2 Partial capture
08-20 18:28 40m - / - DL6ZOG -3 / - 2 Partial capture
08-20 18:28 40m - / - DL1EDR +3 / - 3 Partial capture
08-20 18:25 40m - / - F1IQH -8 / - 3 Partial capture
08-20 18:19 40m - / -13 R4UR -9 / - 2 ✓ Closing fragment
08-20 18:16 40m - / -6 RN3QTS -4 / - 2 ✓ Closing fragment
08-20 18:15 40m -4 / -3 UB2FEK -10 / - 3 ✓ Closing observed
08-20 18:13 40m -4 / - R1IV - / -7 4 ✓ Closing fragment
08-20 18:09 40m -5 / - R4DB - / -3 5 Partial capture
08-20 18:08 40m -11 / - RA0WBI - / -12 2 Partial capture
08-20 18:06 40m -2 / - R6ZCE -4 / -1 3 ✓ Closing observed
08-17 20:15 40m - / -15 LA9GX -2 / - 2 ✓ Closing fragment
08-17 20:00 40m - / -18 UB6ZDJ -20 / - 2 ✓ Closing fragment
08-17 19:52 40m -16 / - R6FFE - / -15 2 ✓ Closing fragment
08-17 19:43 40m - / -23 SP3IPA -11 / - 5 Partial capture
08-17 19:29 40m -12 / - OJ0JR - / -12 2 Partial capture
08-16 23:27 40m -18 / - 9Z4CT - / -21 3 Partial capture
08-16 23:18 40m -14 / - 9Z4CT - / -19 6 Partial capture
08-15 22:49 40m -16 / - R50RKZ - / -15 2 Partial capture
08-15 22:32 40m -14 / - EA5HM - / -11 2 Partial capture
08-15 22:16 40m -14 / - D2UY - / -14 6 Partial capture
08-15 22:11 40m -16 / - CN8NS - / -17 5 Partial capture
08-15 21:59 40m -18 / -6 TF4M -12 / -12 2 Partial capture
08-14 16:13 20m - / - EA3GXK -18 / - 3 Partial capture
08-14 08:09 20m - / -18 ON1DGN -21 / - 2 Partial capture
08-14 07:50 20m - / - TA3NK -16 / - 2 Partial capture
08-14 07:35 20m - / -14 PA0LDE -13 / - 3 ✓ Closing fragment
08-14 07:29 20m - / -4 ON3PDM -14 / - 2 Partial capture
08-14 07:03 20m - / -7 F4LNM -10 / - 2 Partial capture
08-14 06:45 20m - / - F4LNM -15 / - 5 Partial capture
06-19 20:31 40m - / -14 F4NGR -5 / - 3 Partial capture
06-19 20:22 40m - / +8 RA6AR -2 / - 2 ✓ Closing fragment
06-19 20:19 40m - / - F4NGR -11 / - 4 Partial capture
06-19 20:16 40m -18 / -8 R1BNF -14 / -6 4 ✓ Full exchange observed
06-19 20:02 40m -12 / -19 EA1CP +2 / -9 4 ✓ Full exchange observed
06-19 19:58 40m -10 / - G6LTT - / -16 2 ✓ Closing fragment
06-04 21:03 40m - / 0 4X5JK -6 / - 3 ✓ Closing fragment
06-04 20:59 40m - / - E70SZ +1 / - 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
193930  +3  798  RA4FUP RA3M -04 (x2)
194230  +4  743  RA4FUP R0QBB/3 R-01
194645  -8 1064  UA6XT RA4FUP -09
195345  -6 1063  CQ RA4FUP LO12 (x2)
195430 -10  638  RA4FUP SP5PDA -06 (x2)
195515  -5 1064  SP5PDA RA4FUP 73
195715  -4  589  RA4FUP R2EA/P 73
195845  -3 1065  OE2LEX RA4FUP -14
195845 -12 1625  RA4FUP OT8T JO21
195915  -7 1064  RL2F RA4FUP -11
195915 -10 1625  RA4FUP OT8T JO21
200100 +11 2122  RA4FUP R2FDU RR73
20m
UTC    dB Audio  Message
080400 -19 1755  RA4FUP PA7ZZ JO22
080415 -16 1094  CQ RA4FUP LO12 (x5)
080900 -20 1633  RA4FUP ON1DGN -18 (x2)
081045 -20 1093  CQ RA4FUP LO12 (x3)
161015 -14 1096  RA4FUP EA3GXK IM98 (x4)

Decoder S/N history by band

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