R9CA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: LO97

Receiver-side FT8 activity involving R9CA, decoded by SO8OO in southeastern Poland. 1,929 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-08.

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 1,929 FT8 messages attributed to R9CA as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (99%), followed by 80 m (1%) and 40 m (0%). Most decodes (85%) fell within the six-hour window 02:00-08:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

1,929
Messages attributed
34
UTC dates decoded
217
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 18 40m · 5 20m · 1,906
First attributed message: 2026-06-07
Last attributed message: 2026-09-08 22:54 UTC

Observed FT8 message patterns

Attributed sample
1,929 messages
Active dates
34 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-16 to -0.7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 227, moderate (-15 to -9 dB) 879, strong (≥ -8 dB) 823.

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 R9CA 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 R9CA

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
LO97 · 1,644 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,551 km (approx.)
Last such locator decoded
2026-09-08 22:53 UTC

Other locator fields attributed to this token: LQ97 (31).

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 UTCBandR9CA S/NCounterpartCounterpart S/NMsgsCapture
09-08 22:54 80m -20 / -16 IZ8WGR +2 / -11 3 ✓ Full exchange observed
09-08 22:50 80m -22 / - DL6FCK +2 / -19 3 Partial capture
09-08 22:36 80m -18 / -20 LA4NM +5 / -11 5 ✓ Full exchange observed
09-08 22:33 80m -17 / -16 DG5PW +2 / - 4 ✓ Closing observed
09-08 22:30 80m -22 / -12 R5AV +16 / +3 4 ✓ Full exchange observed
09-08 22:28 80m -11 / -11 RC9WC +9 / - 2 ✓ Closing observed
09-08 22:06 40m - / -24 EA3AAY -4 / - 4 ✓ Closing fragment
09-08 21:58 40m - / -19 SY1BKQ +7 / - 7 ✓ Closing fragment
09-08 21:44 40m -14 / -10 S51UN +2 / - 3 ✓ Closing observed
08-31 05:50 20m - / -15 RV3O +12 / - 2 Partial capture
08-31 05:22 20m - / -16 EP2AES -18 / - 3 Partial capture
08-30 04:15 20m -15 / - UA9QFF - / -19 2 ✓ Closing fragment
08-29 04:51 20m - / -9 R8CEC +11 / - 2 Partial capture
08-23 06:26 20m - / -22 UB4CLH -10 / - 2 ✓ Closing fragment
08-23 05:08 20m - / -17 UA4AEU -4 / - 2 Partial capture
08-21 07:39 20m - / - S57MPU +8 / - 3 Partial capture
08-21 06:04 20m - / -5 RD4HX -1 / - 2 ✓ Closing fragment
08-21 05:49 20m - / -17 RA1WU -2 / - 2 ✓ Closing fragment
08-21 04:17 20m -16 / - RU7C - / - 2 ✓ Closing fragment
08-21 04:09 20m -12 / - R4FDK - / +3 3 ✓ Closing fragment
08-20 05:18 20m - / -14 OH5BM -20 / - 3 ✓ Closing fragment
08-20 05:12 20m - / -10 UI6O -16 / - 2 Partial capture
08-16 06:52 20m - / -5 R3TY -13 / - 3 ✓ Closing fragment
08-16 06:46 20m - / -15 R2BK -5 / - 3 ✓ Closing fragment
08-15 07:26 20m - / -18 RW6MZ -19 / - 3 ✓ Closing fragment
08-15 06:50 20m - / -19 RA3PDL -13 / - 4 ✓ Closing fragment
08-12 04:58 20m - / -17 IK0OZD -5 / - 3 ✓ Closing fragment
08-11 03:32 20m - / -19 OD5XX -8 / - 4 ✓ Closing fragment
08-10 07:37 20m - / -18 IK4LZH +4 / - 3 ✓ Closing fragment
08-10 05:22 20m - / -13 F5GSJ -14 / - 3 ✓ Closing fragment
08-10 04:59 20m - / -11 RA4FEA -12 / - 3 ✓ Closing fragment
08-07 02:21 20m - / -10 CT3MD -13 / - 3 ✓ Closing fragment
08-07 02:19 20m - / -6 IU2VBP +13 / - 2 ✓ Closing fragment
08-04 06:52 20m - / -9 R3GN -8 / - 2 ✓ Closing fragment
08-03 06:17 20m - / -9 IK8NSR -12 / - 3 Partial capture
08-03 05:02 20m - / - TA3NK -14 / - 2 Partial capture
07-25 03:41 20m - / - KB3Z -9 / - 4 Partial capture
07-24 05:27 20m - / -14 R6OEY -23 / - 3 ✓ Closing fragment
07-23 09:56 10m - / - IK5ZPU -13 / - 3 Partial capture
07-23 06:13 20m - / -12 RN3DDW/P -19 / - 2 ✓ Closing fragment
07-21 04:54 20m - / - PD2WL -17 / - 5 Partial capture
07-20 05:25 20m - / - PD2WL -19 / - 6 Partial capture
07-19 10:22 10m - / - DO4RP -16 / - 7 Partial capture
07-19 08:43 10m - / -13 IZ4VSD -7 / - 3 Partial capture
07-19 08:25 10m - / -11 PA3EVY +2 / - 2 Partial capture
07-19 08:22 10m - / -15 IK2XYA +2 / - 6 ✓ Closing fragment
07-19 06:11 10m - / -16 RU3X -16 / - 3 Partial capture
07-18 03:18 20m -7 / - KF0YOB - / -6 2 ✓ Closing fragment
07-17 06:15 20m - / -21 PD2WL -18 / - 2 Partial capture
07-13 08:05 20m - / -14 OE3PKU -4 / - 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
223700  +5  641  R9CA LA4NM R-20
223715 -17  641  LA4NM R9CA RR73
223730  +8  640  R9CA LA4NM 73
223915 -17  641  CQ R9CA LO97 (x5)
225045  +5  496  R9CA DL6FCK JO40 (x2)
225130 -22  746  DL6FCK R9CA -19
225300 -19  746  CQ R9CA LO97
225400 -20  746  IZ8WGR R9CA -11
225415  +5  746  R9CA IZ8WGR R-16 (x2)
40m 
UTC    dB Audio  Message
214545 -18  859  CQ R9CA LO97                          a1 (x2)
214900 -24 1918  R9CA BA4IE R-21
215115 -16  859  CQ R9CA LO97
215800  +6 2980  R9CA SY1BKQ KM18 (x7)
220630 -15 1339  R9CA EA3AAY JN11 (x4)
20m 
UTC    dB Audio  Message
042200 -14  771  CQ R9CA LO97 (x7)
052245 -19 2105  R9CA EP2AES LM55 (x3)
055015  +9 2410  R9CA RV3O LO11 (x2)
055630  -7  774  CQ R9CA LO97 (x3)
10m 
UTC    dB Audio  Message
094615 -17 1808  R9CA F4EOC R-16
095045 -14  246  R9CA RU4AJ 73
102245 -12 1997  R9CA DO4RP JO31 (x3)
102445 -12  321  R9CA LZ5XP R-13
102545 -11 1998  R9CA DO4RP JO31 (x4)
095600 -14  835  R9CA IK5ZPU JN53 (x3)
102230 -24 1612  R9CA RK6OV R-16
104430 -16  879  R9CA M8FQT IO93

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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