R3AP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving R3AP, decoded by SO8OO in southeastern Poland. 2,003 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-27 and 2026-09-22.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 2,003 FT8 messages attributed to R3AP as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (70%), followed by 40 m (16%) and 20 m (14%). The busiest six-hour window was 15:00-21:00 UTC, containing 36% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was 0 dB.

Overview

2,003
Messages attributed
8
UTC dates decoded
106
Active 15-min windows
0 dB
Estimated median S/N

Bands

80m · 1,403 40m · 324 20m · 276
First attributed message: 2026-08-27
Last attributed message: 2026-09-22 16:45 UTC

Observed FT8 message patterns

Attributed sample
2,003 messages
Active dates
8 UTC dates
Estimated median S/N
0 dB
Estimated 10th-90th percentile
-10.3 to +7.4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 86, moderate (-15 to -9 dB) 199, strong (≥ -8 dB) 1,718.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with R3AP in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to R3AP

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
KO85 · 1,693 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-09-22 05:04 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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 UTCBandR3AP S/NCounterpartCounterpart S/NMsgsCapture
09-22 16:45 80m -10 / - RI1FJZ -19 / -5 3 ✓ Closing observed
09-22 05:02 40m - / - KB3Z -13 / - 3 Partial capture
09-22 04:54 40m -7 / - 4O7CC - / - 2 Partial capture
09-21 05:17 40m - / +5 UA3YPS -11 / - 3 ✓ Closing fragment
09-21 05:15 40m -7 / +7 RW3ZC -9 / - 4 ✓ Full exchange observed
09-21 05:11 40m -4 / - UA3WG - / - 2 ✓ Closing fragment
09-21 04:55 40m -1 / +10 RJ3T -24 / - 2 Partial capture
09-21 04:53 40m -2 / -10 UA3AGW +1 / +6 5 ✓ Full exchange observed
09-21 04:45 40m -4 / -12 R2SN +3 / -16 15 ✓ Full exchange observed
09-21 04:44 40m -5 / -17 RD3FY -9 / -10 11 ✓ Full exchange observed
09-21 04:43 40m -6 / +1 IZ4AIF +1 / -4 11 ✓ Full exchange observed
09-17 05:02 80m - / - RA3WEO -24 / - 2 Partial capture
09-17 03:59 80m - / - F5MYK -8 / - 2 Partial capture
09-17 03:59 80m - / - DL4HTK +4 / - 2 Partial capture
09-17 03:47 80m - / - EA1IOK -2 / - 3 Partial capture
09-17 03:44 80m - / - DO1OAS -3 / - 9 Partial capture
09-17 03:41 80m -8 / -7 SN1A +12 / -16 5 ✓ Full exchange observed
09-17 03:40 80m -8 / - UA3WG - / -7 2 ✓ Closing fragment
09-17 03:39 80m - / - ON4MAP -8 / - 4 Partial capture
09-17 03:35 80m +2 / +4 R2HH -18 / - 4 ✓ Full exchange observed
09-17 03:34 80m +3 / - SN1A +3 / -7 5 Partial capture
09-17 03:33 40m - / - UI6O -4 / - 2 Partial capture
09-17 03:20 40m - / +7 RA6Z -12 / - 3 ✓ Closing fragment
09-17 02:16 40m - / -16 RK6J -8 / - 4 ✓ Closing fragment
09-17 02:07 40m - / -4 RM7G -8 / - 2 ✓ Closing fragment
09-16 22:51 40m - / -13 VO1HH -5 / - 2 ✓ Closing fragment
09-16 22:50 40m - / -13 YE4FNN -12 / - 2 ✓ Closing fragment
09-16 22:40 40m - / -5 DA0O -16 / - 3 ✓ Closing fragment
09-16 22:20 40m - / - G8FVE -3 / - 3 Partial capture
09-16 22:12 40m - / -15 DG0CFK -22 / - 2 ✓ Closing fragment
09-16 21:25 40m - / - IK6BFH -20 / - 2 ✓ Closing fragment
09-16 21:17 40m - / -3 F4FCH -3 / - 3 ✓ Closing fragment
09-16 21:00 40m - / - DA0O -18 / - 3 Partial capture
09-16 21:00 40m - / - DK9MS -14 / - 3 Partial capture
09-16 20:52 40m - / +8 MW7RHR -13 / - 3 ✓ Closing fragment
09-16 20:20 40m - / - IU1HGN -12 / - 2 Partial capture
09-16 19:56 40m -5 / +2 R8CKD -8 / 0 4 ✓ Full exchange observed
09-16 16:04 40m -8 / - EW8HP - / +9 2 ✓ Closing fragment
09-16 15:58 40m -10 / -14 DL7UKM -5 / -11 5 ✓ Full exchange observed
09-16 15:54 40m -8 / - ON1DGN - / -15 4 Partial capture
09-16 15:41 40m -8 / - DL7UKM -3 / -8 5 Partial capture
09-16 15:41 40m -8 / -8 DL9KM -2 / -8 5 ✓ Full exchange observed
09-16 15:34 40m -8 / -5 UB6ZDJ -9 / -2 5 ✓ Full exchange observed
09-16 11:23 40m -16 / -10 OZ9FF -10 / -9 4 ✓ Full exchange observed
09-16 11:21 40m -19 / - RU3AMO - / +10 3 ✓ Closing fragment
09-10 05:03 40m -16 / - OK2JKO - / -14 2 Partial capture
09-10 04:32 40m - / -10 RZ7KR +6 / - 3 ✓ Closing fragment
09-10 04:20 40m -4 / +5 CR7BRV -8 / - 3 ✓ Closing observed
09-10 04:18 40m -6 / - G5TAO - / - 4 Partial capture
09-10 04:15 40m -10 / - HC2GRC - / -15 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
045730 -13 2705  CQ R3AP KO85 (x10)
050245 -24  945  R3AP RA3WEO KO72 (x2)
164515  -9 1704  RI1FJZ R3AP -05 (x2)
164600 -19 1202  R3AP RI1FJZ RR73
40m 
UTC    dB Audio  Message
125030 -15 1741  CQ R3AP KO85 (x2)
045415  -7 1741  4O7CC R3AP KO85 (x2)
045730 -10 1741  CQ R3AP KO85 (x4)
050245 -13 1742  R3AP KB3Z FN20
050315 -12 2039  R3AP PD0WL JO21
050330  -8 1741  CQ R3AP KO85
050345 -12 1742  R3AP KB3Z FN20
050400  -9 1742  CQ R3AP KO85
050415 -15 1742  R3AP KB3Z FN20
050430  -7 1742  CQ R3AP KO85
60m 
UTC    dB Audio  Message
062745  +6 2768  R3AP OE4DJN JN87
20m 
UTC    dB Audio  Message
113800  +0 1781  DL6ZFG R3AP KO85 (x2)
113900  -1 1781  OZ7DR R3AP KO85
113915 -15 1463  R3AP OZ7DR -02
113930  +3 1781  OZ7DR R3AP KO85 (x2)
114015 -15 1463  R3AP OZ7DR -02
114030  -3 1781  OZ7DR R3AP KO85
114045 -16 1463  R3AP OZ7DR -02
114100  -3 1782  OZ7DR R3AP R-12 (x2)
114145 -13 1463  R3AP OZ7DR RR73
114230  -1 1781  CQ R3AP KO85
114300  -7 1782  SP6AMI R3AP R-18 (x2)
10m 
UTC    dB Audio  Message
075645  -7  522  R3AP A92GE R-11 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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