IS0/IK2YCW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sardinia

Receiver-side FT8 activity involving IS0/IK2YCW, decoded by SO8OO in southeastern Poland. 8,261 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-11.

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 8,261 FT8 messages attributed to IS0/IK2YCW as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (66%), followed by 40 m (34%). Decoded messages were spread across the UTC day; the busiest six-hour window (07:00-13:00 UTC) held 33% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

8,261
Messages attributed
23
UTC dates decoded
831
Active 15-min windows
-8 dB
Estimated median S/N

Bands

40m · 2,816 20m · 5,445
First attributed message: 2026-06-15
Last attributed message: 2026-09-11 18:21 UTC

Observed FT8 message patterns

Attributed sample
8,261 messages
Active dates
23 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-18.2 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,601, moderate (-15 to -9 dB) 2,437, strong (≥ -8 dB) 4,223.

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 IS0/IK2YCW 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.

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 UTCBandIS0/IK2YCW S/NCounterpartCounterpart S/NMsgsCapture
09-12 04:20 40m - / - RM5F -14 / - 2 Partial capture
09-11 16:29 40m - / - RQ7O -3 / - 3 Partial capture
09-11 15:40 40m - / -5 LY3QR -4 / - 4 Partial capture
09-11 15:00 40m - / - YL3CU -5 / - 4 Partial capture
09-11 13:54 40m - / - UR5WJA -14 / - 2 Partial capture
09-11 12:38 40m - / -15 SQ5EXI +5 / - 2 Partial capture
09-11 10:53 40m - / - SO3K -2 / - 2 Partial capture
09-11 10:28 40m - / - <...> -12 / - 2 Partial capture
09-11 08:55 40m - / -12 OZ1JMJ -10 / - 2 Partial capture
09-11 08:47 40m - / -8 S53AK 0 / - 2 Partial capture
09-11 08:10 40m - / - <...> -15 / - 2 Partial capture
09-11 07:46 40m - / - <...> -5 / - 3 ✓ Closing fragment
09-11 07:24 40m -16 / - IS0AAS - / - 2 Partial capture
09-11 07:22 40m - / - <...> -7 / - 3 ✓ Closing fragment
09-11 07:19 40m - / -14 R7KM -7 / - 3 Partial capture
09-11 06:55 40m -11 / - DH5NC - / +2 3 Partial capture
09-11 06:50 40m -11 / - <...> -8 / - 12 ✓ Closing fragment
09-11 06:44 40m -16 / - <...> -6 / - 4 ✓ Closing fragment
09-11 06:31 40m -10 / - <...> -17 / - 2 ✓ Closing fragment
09-11 06:30 40m -14 / -7 F3CJ -16 / -11 3 Partial capture
09-11 06:17 40m - / - F4DIA -7 / - 3 Partial capture
09-11 06:16 40m - / -4 F5MSE -12 / - 2 Partial capture
09-11 06:15 40m -14 / - <...> -13 / - 5 ✓ Closing fragment
09-11 06:12 40m -14 / - G3YQA - / -7 3 ✓ Closing fragment
09-11 06:09 40m - / -8 F5MSE -13 / - 5 Partial capture
09-11 06:06 40m -15 / - <...> - / - 9 Partial capture
09-11 05:54 40m -16 / - SP100PKP - / - 3 ✓ Closing fragment
09-11 05:53 40m -13 / - <...> +6 / - 10 ✓ Closing fragment
09-11 05:45 40m - / -4 DJ2PW -6 / - 2 Partial capture
09-11 05:32 40m -14 / - <...> +2 / - 5 ✓ Closing fragment
09-11 05:30 40m - / -16 RK6AH -3 / - 2 Partial capture
09-11 04:56 40m -10 / - <...> - / - 4 Partial capture
09-11 04:51 40m -10 / - SM7MDI - / -15 2 Partial capture
09-11 04:45 40m -14 / - HA9OA - / -20 3 Partial capture
09-11 04:41 40m - / -9 IZ0MYH -5 / - 2 Partial capture
09-11 04:41 40m - / - PC2J -4 / - 3 Partial capture
09-11 04:34 40m -13 / - <...> - / - 2 Partial capture
09-11 04:07 40m -2 / - <...> - / - 4 Partial capture
09-11 04:04 40m -7 / - <...> 0 / - 2 ✓ Closing fragment
09-11 04:00 40m - / - <...> -1 / - 3 ✓ Closing fragment
09-11 03:59 40m - / -8 RV3H -2 / - 2 Partial capture
09-11 02:46 40m - / - EK1KE -14 / - 9 Partial capture
09-11 02:41 40m - / - <...> -8 / - 10 Partial capture
09-10 23:21 40m -14 / - RD7O - / +5 2 Partial capture
09-10 21:53 40m -3 / - <...> - / - 6 ✓ Closing fragment
09-10 21:52 40m -4 / - R6YG - / -3 2 Partial capture
09-10 21:47 40m -7 / - <...> - / - 3 ✓ Closing fragment
09-10 21:44 40m -9 / - <...> +3 / - 2 ✓ Closing fragment
09-10 21:27 40m - / - DK7NL -6 / - 2 Partial capture
09-10 21:03 40m -7 / - GW0ARK - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
154045  -5  962  IS0/IK2YCW LY3QR KO24 (x3)
162915  -4  609  IS0/IK2YCW RQ7O KN98 (x3)
163145 -16  609  IS0/IK2YCW DL1WDS JO62
163245 +17 2589  IS0/IK2YCW RD4F R-14
163415  +0  608  IS0/IK2YCW RK6AH R-14
182100  +0 2596  UA9FKM IS0/IK2YCW R-05
203545 +14  466  IS0/IK2YCW ON4WIY R-05
232315 -10 2581  IS0/IK2YCW KA1WPM R-01
025100 -12  443  IS0/IK2YCW R4ML LO44
042015 -12  849  IS0/IK2YCW RM5F KO85 (x2)
20m 
UTC    dB Audio  Message
053730 -23 1990  CQ IS0/IK2YCW
053830 -22 1990  S55DX IS0/IK2YCW R+18
055130 -18 1990  CQ IS0/IK2YCW (x3)
055300 -19 1990  <...> IS0/IK2YCW
060300 -18 1990  CQ IS0/IK2YCW (x5)
060730 -19 1990  <...> IS0/IK2YCW (x4)

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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