R8AIM/4 — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia

Receiver-side FT8 activity involving R8AIM/4, decoded by SO8OO in southeastern Poland. 275 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-28 and 2026-10-03.

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 275 FT8 messages attributed to R8AIM/4 as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (80%), followed by 40 m (17%) and 160 m (3%). Most decodes (84%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

275
Messages attributed
4
UTC dates decoded
36
Active 15-min windows
-11 dB
Estimated median S/N

Bands

First attributed message: 2026-09-28
Last attributed message: 2026-10-03 00:57 UTC

Observed FT8 message patterns

Attributed sample
275 messages
Active dates
4 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-19 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 53, moderate (-15 to -9 dB) 119, strong (≥ -8 dB) 103.

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.

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.

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 UTCBandR8AIM/4 S/NCounterpartCounterpart S/NMsgsCapture
10-03 02:49 80m - / -8 IK0HBN +9 / - 3 Partial capture
10-02 21:54 80m -11 / - <...> -7 / - 3 ✓ Closing fragment
10-02 21:52 80m -18 / -19 UA3IAP +7 / -8 2 Partial capture
10-02 21:49 80m - / - 4O4DB -1 / - 3 Partial capture
10-02 21:37 80m - / -16 UA3IAP +4 / - 2 Partial capture
10-02 21:08 80m -13 / - <...> 0 / - 4 ✓ Closing fragment
10-02 21:04 80m - / - RU3T +2 / - 2 Partial capture
10-02 21:02 160m - / - SP3FAR +14 / - 2 Partial capture
10-02 21:00 80m -12 / - <...> +2 / - 9 ✓ Closing fragment
10-02 20:51 160m - / - <...> -18 / - 2 ✓ Closing fragment
10-02 20:46 160m - / -11 RU3FM +7 / - 3 Partial capture
10-02 20:43 160m - / - R7CD -8 / - 12 Partial capture
10-02 20:40 160m - / -11 RQ4F -8 / - 2 Partial capture
10-02 20:37 160m - / - R7CD -8 / - 5 Partial capture
10-02 20:37 160m - / -15 RU3FM +3 / - 2 Partial capture
10-02 20:27 160m - / -4 R2DGN -16 / - 2 Partial capture
10-02 20:26 160m - / - <...> -7 / - 3 ✓ Closing fragment
10-02 20:25 160m - / - YL3CW -1 / - 2 Partial capture
10-02 20:22 80m - / - IK5CHL -5 / - 2 Partial capture
10-02 20:02 160m - / - <...> +12 / - 2 ✓ Closing fragment
10-02 19:48 80m - / +2 DG4ST -4 / - 3 Partial capture
10-02 19:35 80m -4 / - <...> +4 / - 3 ✓ Closing fragment
10-02 19:30 80m -4 / - <...> -5 / - 4 ✓ Closing fragment
10-02 19:27 80m -11 / - <...> +14 / - 3 ✓ Closing fragment
10-02 19:27 80m -8 / - RX3AEX +6 / -3 2 Partial capture
10-02 19:23 80m -20 / - <...> -11 / - 2 ✓ Closing fragment
10-02 19:20 80m -24 / - <...> +6 / - 2 ✓ Closing fragment
10-02 19:06 40m -6 / - <...> +3 / - 2 ✓ Closing fragment
09-29 22:44 80m - / - EC3A -4 / - 2 Partial capture
09-29 22:09 80m - / - DL1UDO -15 / - 2 Partial capture
09-29 21:43 80m -10 / - SP9TBT +9 / 0 2 Partial capture
09-29 21:15 80m - / -10 9A1CC 0 / - 2 Partial capture
09-29 21:05 80m - / - SP1RKT +9 / - 5 Partial capture
09-29 21:01 80m - / - SP1RKT +4 / - 2 Partial capture
09-29 20:05 80m - / - EA3FP -14 / - 2 Partial capture
09-29 19:47 80m - / -7 R6ODX +1 / - 2 Partial capture
09-29 19:44 80m - / -16 RL3AW -4 / - 3 Partial capture
09-29 19:43 80m - / - YU7AS +6 / - 2 Partial capture
09-29 19:37 80m - / -25 IT9VCE -2 / - 3 Partial capture
09-29 19:08 80m - / - DF7EF +19 / - 2 Partial capture
09-29 19:03 80m - / - IU4QQE 0 / - 4 Partial capture
09-29 18:37 80m - / -14 DA2TB -10 / - 4 Partial capture
09-29 18:36 80m - / -21 DD4U -10 / - 2 Partial capture
09-29 18:34 160m - / -7 DJ7M +21 / - 2 Partial capture
09-29 18:22 80m - / - YO3YV +1 / - 2 Partial capture
09-29 17:49 80m - / -12 DL8TV +13 / - 2 Partial capture
09-29 17:35 80m - / - DL5JMN -4 / - 2 Partial capture
09-29 17:31 80m - / -6 IQ4JO +3 / - 2 Partial capture
09-29 17:31 80m - / - DO9YU -11 / - 12 Partial capture
09-29 17:22 80m - / -5 DL1ONI +2 / - 7 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
214715 -11  753  <...> R8AIM/4
214945  -5  555  R8AIM/4 4O4DB JN92 (x2)
215045 -11  753  <...> R8AIM/4
215045  +0  555  R8AIM/4 4O4DB JN92
215245 -18  753  UA3IAP R8AIM/4 -08
215330  +7  477  R8AIM/4 UA3IAP R-19
215400  -7  395  R8AIM/4 <...> 73
215415 -14  753  <...> R8AIM/4 RR73 (x2)
005345  -5 2539  EA6LU R8AIM/4 R-11
024915 +11  852  R8AIM/4 IK0HBN JN62 (x3)
031415  -4  963  R8AIM/4 F4LTX IN95
160m
UTC    dB Audio  Message
204745 -10 2344  R8AIM/4 R7CD KN94 (x6)
205130 -18 1603  R8AIM/4 <...> RR73 (x2)
210215 +14 2200  R8AIM/4 SP3FAR JO71 (x2)
210615  -4 2096  R8AIM/4 RA1N -05
212945  -6 1945  R8AIM/4 <...> RR73 (x2)
005700  +8 2362  R8AIM/4 OH5KNL -16
005730  +5 2362  OZ13JK R8AIM/4 RR73
40m
UTC    dB Audio  Message
083245 -13 2007  R8AIM/4 S51RU JN76 (x2)
092615 -20 1003  R8AIM/4 DF3JR JO31 (x2)
092915 -20 2010  R8AIM/4 DK8MT JN58
095815  +0 1004  R8AIM/4 SQ5TA KO01 (x2)
122145 -23 1700  R8AIM/4 SP2TQQ JO94 (x2)
171515  -3  384  R8AIM/4 RA3ZDU KO90 (x2)
225800  +7  812  R8AIM/4 HB9FLU JN47
190600  +3 2829  R8AIM/4 <...> RR73
190615  -6 2829  <...> R8AIM/4 73 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee