R5ACQ — 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 R5ACQ, decoded by SO8OO in southeastern Poland. 1,970 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-15.

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 1,970 FT8 messages attributed to R5ACQ as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (81%), followed by 40 m (15%) and 20 m (3%). Most decodes (94%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -4.6 dB.

Overview

1,970
Messages attributed
27
UTC dates decoded
187
Active 15-min windows
-4.6 dB
Estimated median S/N

Bands

80m · 1,592 40m · 300 20m · 59 10m · 19
First attributed message: 2026-06-14
Last attributed message: 2026-09-15 19:53 UTC

Observed FT8 message patterns

Attributed sample
1,970 messages
Active dates
27 UTC dates
Estimated median S/N
-4.6 dB
Estimated 10th-90th percentile
-16 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 214, moderate (-15 to -9 dB) 415, strong (≥ -8 dB) 1,341.

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 R5ACQ 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 R5ACQ

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 · 1,139 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-09-15 19:52 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 UTCBandR5ACQ S/NCounterpartCounterpart S/NMsgsCapture
09-15 19:51 80m -11 / - R3DQK - / -12 2 ✓ Closing fragment
09-15 19:49 80m -11 / -5 UA6YW +4 / +6 4 ✓ Full exchange observed
09-15 19:45 80m +9 / - RA3WPF +2 / +5 4 ✓ Closing observed
09-15 19:44 80m +7 / +8 OH6NIO -5 / -16 4 Partial capture
09-15 19:42 80m -1 / -7 RA2FCF -18 / - 4 ✓ Closing observed
09-15 19:38 80m -14 / - R3PBA - / +1 2 ✓ Closing fragment
09-15 19:31 80m - / - YL3NF -1 / - 2 ✓ Closing fragment
09-15 16:12 80m -6 / -3 UA4AGU -2 / -2 4 ✓ Full exchange observed
09-15 16:07 80m -4 / -10 RV9ABE -17 / -4 5 ✓ Full exchange observed
09-15 16:07 80m -4 / -14 UB8A -16 / -13 6 ✓ Full exchange observed
09-15 16:03 80m -4 / - RV9ABE - / -7 4 Partial capture
09-15 16:02 80m -1 / - R3CE - / - 2 Partial capture
09-15 15:57 80m -12 / - R3EDI +4 / - 5 ✓ Full exchange observed
09-15 15:47 40m - / -13 RA3LJ -4 / - 2 ✓ Closing fragment
09-15 15:45 40m -6 / - R7MP -14 / -4 3 ✓ Closing observed
09-15 15:44 40m -10 / - UK8FCM - / -21 2 ✓ Closing fragment
09-15 15:40 40m -14 / - RA4FHO -2 / - 3 ✓ Closing observed
09-15 15:39 40m - / - RT7KM +4 / - 2 Partial capture
09-15 15:34 40m -10 / - R9FGJ - / -20 2 ✓ Closing fragment
09-14 19:08 80m -1 / -3 R1WBW +8 / - 6 ✓ Full exchange observed
09-14 18:46 80m +2 / -14 RA9ANC -13 / -6 5 ✓ Full exchange observed
09-14 18:45 80m -1 / +10 RU3AMO -2 / - 4 ✓ Full exchange observed
09-14 18:40 80m -7 / -9 R3DGH -18 / -9 5 ✓ Full exchange observed
09-14 18:39 80m - / +6 LB5WB 0 / - 2 ✓ Closing fragment
09-14 18:37 80m -2 / - R3PBA - / +3 2 ✓ Closing fragment
09-14 18:33 80m 0 / +7 RC2Y +2 / - 5 ✓ Full exchange observed
09-14 18:32 80m -4 / -4 RA3RPW -9 / -1 3 ✓ Full exchange observed
09-14 18:31 80m -2 / - R3KLE - / +1 2 ✓ Closing fragment
09-14 18:28 80m -2 / -4 DK2CC +9 / -11 6 ✓ Full exchange observed
09-14 18:27 80m +2 / +8 R4DI +1 / +10 5 ✓ Full exchange observed
09-14 18:27 80m +6 / - RG6OR -9 / -2 3 ✓ Closing observed
09-14 18:23 80m 0 / - R3TY - / +4 4 ✓ Closing fragment
09-14 18:22 80m - / - M8FQT -20 / - 4 Partial capture
09-14 18:20 80m -3 / 0 R4FDK -10 / +1 7 ✓ Full exchange observed
09-14 18:20 80m 0 / - R4HLO -14 / -9 4 ✓ Closing observed
09-14 16:21 80m -4 / +1 R3KJF -17 / +2 6 ✓ Full exchange observed
09-14 16:20 80m -2 / - R6ZE -24 / -8 4 ✓ Closing observed
09-14 14:40 40m -5 / -5 RA3DFQ -8 / - 3 ✓ Closing observed
09-14 14:37 40m -17 / +2 RW3PI -9 / -7 6 ✓ Full exchange observed
09-14 14:29 40m -14 / - RO6ON - / -7 4 Partial capture
09-14 14:23 40m -15 / +2 RN3QTS -11 / - 4 ✓ Closing observed
09-14 14:20 40m -22 / - BI6AN - / - 2 Partial capture
09-12 20:21 80m +6 / -2 YO6LM +4 / -8 6 ✓ Full exchange observed
09-12 20:19 80m 0 / - R3BCK -7 / -14 8 ✓ Closing observed
09-12 20:15 80m +3 / +7 R4AFR -17 / -5 4 ✓ Full exchange observed
09-12 20:13 80m 0 / -15 OE5ABL -11 / -20 3 Partial capture
09-12 20:12 80m -6 / +5 RA3DAD 0 / - 4 ✓ Full exchange observed
09-12 20:11 80m -6 / -6 EA1IOK -9 / -18 4 ✓ Full exchange observed
09-12 20:10 80m -5 / - RF9C - / +1 2 ✓ Closing fragment
09-12 20:09 80m -4 / -12 IT9VCE -18 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
194545  +2 2655  R5ACQ RA3WPF KO81
194600  +8 2655  RA3WPF R5ACQ +09 (x2)
194700 +11 2656  CQ R5ACQ KO85 (x5)
194930  +8  799  R5ACQ UA6YW LN04
194945 -11 2656  UA6YW R5ACQ +06
195000  +4  799  R5ACQ UA6YW R-05 (x2)
195145 -13 2655  R3DQK R5ACQ -12
195245 -11 2656  CQ R5ACQ KO85
195315  -9 2656  R3DQK R5ACQ RR73
40m 
UTC    dB Audio  Message
154330 -10 1885  CQ R5ACQ KO85
154400 -11 1886  UK8FCM R5ACQ R-21 (x2)
154515 -14 1938  R5ACQ R7MP LN17
154530  -8 1886  R7MP R5ACQ -04 (x2)
154630 -13 1885  CQ R5ACQ KO85
154715  -4 1885  R5ACQ RA3LJ -13 (x2)
155230 -12 2264  CQ R5ACQ KO85 (x6)
20m 
UTC    dB Audio  Message
140230  -9 1618  R5ACQ CT1BFP IM59 (x6)
140600  +0  254  R5ACQ R6LKG LN07 (x2)
140700  -9 1617  R5ACQ CT1BFP IM59
060100  -8  520  R5ACQ DL3HBF 73
152245 -10 1732  R5ACQ F1PPH JN07 (x5)
10m 
UTC    dB Audio  Message
093700 -24 1990  RC5F R5ACQ -01
093715  -9 1301  R5ACQ RC5F R-18 (x2)
133200 -18 2005  R5ACQ UA6B KN96 (x2)
133800 -14  837  R5ACQ G4UGV 73

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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