IA5/IW0RLC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy

Receiver-side FT8 activity involving IA5/IW0RLC, decoded by SO8OO in southeastern Poland. 158 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-12 and 2026-07-19.

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 158 FT8 messages attributed to IA5/IW0RLC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 20 m (13%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

158
Messages attributed
7
UTC dates decoded
42
Active 15-min windows
-15 dB
Estimated median S/N

Bands

40m · 138 20m · 20
First attributed message: 2026-07-12
Last attributed message: 2026-07-19 06:43 UTC

Observed FT8 message patterns

Attributed sample
158 messages
Active dates
7 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-22 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 78, moderate (-15 to -9 dB) 60, strong (≥ -8 dB) 20.

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 UTCBandIA5/IW0RLC S/NCounterpartCounterpart S/NMsgsCapture
07-19 06:36 20m -16 / - <...> - / - 2 Partial capture
07-18 21:18 20m -4 / - KC2YIL - / -3 3 Partial capture
07-18 20:32 20m - / - M9WKO -8 / - 3 Partial capture
07-18 14:51 20m -8 / - <...> -10 / - 2 ✓ Closing fragment
07-18 08:05 20m - / - <...> 0 / - 2 ✓ Closing fragment
07-18 07:59 20m -15 / - <...> -11 / - 3 ✓ Closing fragment
07-18 04:03 20m - / - UA3PAB -18 / - 3 Partial capture
07-18 04:00 20m - / - <...> -17 / - 5 ✓ Closing fragment
07-17 07:09 20m - / - <...> -13 / - 2 ✓ Closing fragment
07-17 00:22 40m -8 / - KO4FSZ - / -8 2 Partial capture
07-16 23:34 40m -10 / - <...> - / - 3 ✓ Closing fragment
07-16 23:14 40m - / -6 IW0RLC -9 / - 2 Partial capture
07-16 22:57 40m -9 / - <...> +8 / - 2 ✓ Closing fragment
07-16 22:52 40m -10 / -12 US2YW -10 / -1 3 Partial capture
07-16 22:51 40m - / - <...> +3 / - 2 ✓ Closing fragment
07-16 07:56 20m - / -16 UR5VPR -13 / - 3 Partial capture
07-15 20:36 20m - / - <...> -7 / - 2 ✓ Closing fragment
07-15 08:03 40m - / +7 DK7ZT -24 / - 3 Partial capture
07-15 05:25 20m - / - <...> -14 / - 2 ✓ Closing fragment
07-13 07:38 20m - / - <...> -18 / - 2 ✓ Closing fragment
07-13 06:49 20m - / -11 I1RJP -3 / - 2 Partial capture
07-13 04:42 40m - / - <...> -8 / - 3 ✓ Closing fragment
07-13 04:28 40m -18 / - LU9MLR - / -17 2 Partial capture
07-13 04:08 40m -19 / - <...> +2 / - 2 ✓ Closing fragment
07-13 03:59 40m -17 / - <...> -22 / - 2 ✓ Closing fragment
07-13 03:37 40m - / -11 SP3IOE -10 / - 2 Partial capture
07-13 03:36 40m -22 / - <...> -14 / - 2 ✓ Closing fragment
07-13 03:08 40m -20 / - <...> -8 / - 2 ✓ Closing fragment
07-13 02:27 40m - / -13 RW3QU -6 / - 2 Partial capture
07-12 23:09 40m -20 / - <...> -20 / - 2 ✓ Closing fragment
07-12 23:03 40m -18 / -9 PA0RF -14 / +9 3 Partial capture
07-12 22:28 40m -17 / -11 RN6HK -14 / +1 3 Partial capture
07-12 22:28 40m - / - <...> -18 / - 2 ✓ Closing fragment
07-12 21:23 40m -22 / - <...> -9 / - 5 ✓ Closing fragment
07-12 21:22 40m - / -5 F6BHK -18 / - 2 Partial capture
07-12 21:20 40m - / - I1YTO -22 / - 3 Partial capture
07-12 20:56 40m -21 / - <...> -5 / - 2 ✓ Closing fragment
07-12 20:04 40m -9 / - <...> -1 / - 4 ✓ Closing fragment
07-12 19:42 40m - / - <...> -2 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
211800  -7  602  CQ IA5/IW0RLC
211830  -9  603  KC2YIL IA5/IW0RLC -03 (x3)
212915  -1  604  IA5/IW0RLC <...> 73
213600  -5  602  CQ IA5/IW0RLC (x2)
225545 -17 1721  IA5/IW0RLC <...> 73 (x3)
063600 -14  596  <...> IA5/IW0RLC
063615  -8  603  IA5/IW0RLC F1DSZ JN06
063800 -17 1073  <...> IA5/IW0RLC (x2)
064300 -19 1072  CQ IA5/IW0RLC
10m 
UTC    dB Audio  Message
122845  -5  675  IA5/IW0RLC <...> RR73 (x4)
40m 
UTC    dB Audio  Message
023900 -11  604  <...> IA5/IW0RLC RR73
023930  -9  604  CQ IA5/IW0RLC
024730 -15  604  <...> IA5/IW0RLC RR73
024930 -10  604  WP4JLU IA5/IW0RLC -07
025400 -11  603  CQ IA5/IW0RLC (x10)
031430 -12  604  <...> IA5/IW0RLC RR73

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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