RT4A/P — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: LN28

Receiver-side FT8 activity involving RT4A/P, decoded by SO8OO in southeastern Poland. 1,311 related FT8 messages, 360 CQ messages, observed on 160m, 80m, 40m, 20m, across 4 UTC dates. Heard between 2026-06-12 and 2026-08-15.

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

1,311
Related messages
360
CQ messages
4
UTC dates heard
-5 dB
Mean decoder S/N

Bands

80m 20m 40m 160m
First seen: 2026-06-12
Last seen: 2026-08-15 07:10 UTC

Frequent QSO partners observed at SO8OO

Stations RT4A/P worked most often, as logged from our receiver:

Activity Heatmap

Locator transmitted by RT4A/P

Approximate centre of LN28, decoded 2026-08-15 09:10 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 UTCBandRT4A/P S/NCounterpartCounterpart S/NMsgsCapture
08-15 08:03 20m - / - R8FH -2 / - 2 ✓ Closing fragment
08-15 08:03 20m -13 / - R9CS/P +4 / -17 3 Partial capture
08-15 08:00 20m - / -9 IV3GHY +3 / - 2 Partial capture
08-15 07:52 20m -12 / - R3BV - / -11 3 ✓ Closing fragment
08-15 07:50 20m -16 / - R1OAI - / -6 2 ✓ Closing fragment
08-15 07:49 20m -15 / - R1BED - / -10 2 ✓ Closing fragment
08-15 07:44 20m -8 / - R2DAW - / -1 2 ✓ Closing fragment
08-15 07:43 20m -10 / - R3BV - / -13 2 Partial capture
08-15 07:41 20m -10 / +3 F1PBZ -3 / -9 6 ✓ Full exchange observed
08-15 07:37 20m -8 / -8 R9TS -9 / 0 3 ✓ Full exchange observed
08-15 07:36 20m - / - M0XAN -5 / - 2 Partial capture
08-15 07:29 20m - / -11 UA1ZFL -15 / - 3 Partial capture
07-22 17:39 40m - / -25 RN9N -12 / - 6 Partial capture
07-22 17:34 40m - / -11 R6OD -6 / - 2 Partial capture
07-22 17:32 40m - / -17 IQ4JO -1 / - 3 ✓ Closing fragment
07-22 17:18 40m - / -12 RW6ATD -8 / - 4 ✓ Closing fragment
07-22 16:58 40m - / -11 RW2Z -19 / - 3 ✓ Closing fragment
07-22 16:51 40m - / -11 R3WDW -4 / - 2 ✓ Closing fragment
07-22 15:42 20m -12 / - R6DVG - / +6 2 Partial capture
07-22 15:38 20m -11 / -17 DL2RPN -13 / +6 3 ✓ Full exchange observed
07-22 15:35 20m - / - DL2RPN -6 / - 2 Partial capture
07-22 15:33 20m - / -15 UB3YFP -16 / - 3 Partial capture
07-22 14:53 20m - / -10 DK0BMW -8 / - 3 ✓ Closing fragment
07-22 12:15 20m - / - F6FTB -12 / - 2 Partial capture
07-22 12:08 20m - / -13 PA0ION -22 / - 3 Partial capture
07-22 11:06 20m - / -20 PD0HLA -9 / - 2 ✓ Closing fragment
07-22 11:04 20m - / -13 DG5PW -18 / - 3 Partial capture
07-22 10:47 20m - / -17 UB3YFP -11 / - 3 ✓ Closing fragment
07-22 10:31 20m - / -9 RA9AJ -5 / - 5 ✓ Closing fragment
07-22 10:20 20m - / - UA3IKI -2 / - 5 Partial capture
06-13 05:47 20m -12 / - UA6ANQ -9 / - 2 ✓ Closing observed
06-13 05:46 20m -12 / +5 R7NO -15 / +6 6 ✓ Full exchange observed
06-13 05:46 20m -8 / - R1BED - / -18 2 Partial capture
06-13 05:44 20m -5 / - RZ6CO - / +6 2 ✓ Closing fragment
06-13 05:42 20m - / -8 UA6ANQ -12 / - 2 Partial capture
06-13 05:38 20m - / -2 R3DEE -10 / - 2 Partial capture
06-13 05:29 20m - / - RW3VA -14 / - 2 ✓ Closing fragment
06-13 05:27 20m - / -10 R6AO -12 / - 6 Partial capture
06-13 05:26 20m -12 / -5 EA5ET +4 / +1 7 ✓ Full exchange observed
06-13 05:22 20m - / -3 R1BL +8 / - 5 Partial capture
06-13 05:22 20m - / -12 R3YK +5 / - 3 Partial capture
06-13 05:21 20m - / -7 RN6AK -18 / - 3 ✓ Closing fragment
06-13 05:21 20m - / - UA6J +8 / - 3 Partial capture
06-13 05:21 20m - / +3 RT6C +12 / - 5 ✓ Closing fragment
06-13 05:17 20m - / - R1BL 0 / - 2 Partial capture
06-13 05:16 20m - / - R3YK 0 / - 4 Partial capture
06-13 05:16 20m - / +5 SV6JHA -7 / - 3 ✓ Closing fragment
06-13 05:12 20m - / -13 R8CC -10 / - 2 ✓ Closing fragment
06-13 05:08 20m - / - R4HJN -3 / - 3 Partial capture
06-13 05:08 20m - / - R6LKG -20 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
080015  +1 2394  RT4A/P IV3GHY -09 (x2)
080300 -17 2393  CQ RT4A/P LN28
080345  +4 2917  RT4A/P R9CS/P LO75
080345  -3  660  RT4A/P R8FH RR73 (x2)
080430 -18 2393  CQ RT4A/P LN28
080445  +5 2917  RT4A/P R9CS/P LO75
080530 -13 2394  R9CS/P RT4A/P -17
080630 -17 2393  CQ RT4A/P LN28 (x2)
090245 -13 2404  RT4A/P DG1KFR R-08
090300 -15 2134  CQ RT4A/P LN28 (x3)
40m 
UTC    dB Audio  Message
172045 -11 2278  RT4A/P RW6ATD RR73
172645  +2 2805  RT4A/P IQ4JO JN63
172945 -21 1904  RT4A/P RA3THN LO26
173215  +3 2805  RT4A/P IQ4JO JN63 (x3)
173415  -7 2666  RT4A/P R6OD KN87 (x2)
173645 -14 2441  RT4A/P RG4D 73
173945 -12 2208  RT4A/P RN9N MO64 (x6)
80m 
UTC    dB Audio  Message
004230 +12 2422  RT4A/P IQ4JO JN63
004245 -15  943  CQ RT4A/P LO20 (x7)
004630 -15 2034  RT4A/P RA3TKS -04
004645 -12  943  CQ RT4A/P LO20
004700  +5 2421  RT4A/P IQ4JO JN63
004700 -18 2034  RT4A/P RA3TKS -04
004715 -10  943  CQ RT4A/P LO20
004730 -14 2034  RT4A/P RA3TKS -04
004745 -11  943  CQ RT4A/P LO20
160m 
UTC    dB Audio  Message
200000  -7  859  RT4A/P R6OE KN87 (x6)
200830 -16 1521  RT4A/P RT2P -14 (x2)
201430 -21 2084  RT4A/P UI6A -17
210215 -18 2075  RT4A/P UB4FTI -08 (x4)
211615  +0 1552  RT4A/P SP6LUV JO90 (x2)

Decoder S/N history by band

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