IU8RIA — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JM89

Receiver-side FT8 activity involving IU8RIA, decoded by SO8OO in southeastern Poland. 67 FT8 messages attributed to this token as transmitter, on 160m, 40m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-04.

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 67 FT8 messages attributed to IU8RIA as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (76%), followed by 10 m (15%) and 40 m (9%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

67
Messages attributed
7
UTC dates decoded
9
Active 15-min windows
-16 dB
Estimated median S/N

Bands

160m · 51 40m · 6 10m · 10
First attributed message: 2026-06-09
Last attributed message: 2026-11-04 18:26 UTC

Observed FT8 message patterns

Attributed sample
67 messages
Active dates
7 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-21 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 6.

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 IU8RIA in decoded directed-looking exchanges:

Most frequent locator attributed to IU8RIA

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
JM89 · 31 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,220 km (approx.)
Last such locator decoded
2026-11-04 18:23 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 UTCBandIU8RIA S/NCounterpartCounterpart S/NMsgsCapture
11-04 18:24 160m -6 / -15 R3ZG -7 / -10 5 ✓ Full exchange observed
11-04 18:23 160m -14 / +3 DF3IS -8 / -5 5 ✓ Full exchange observed
11-04 18:23 160m -7 / - RU6CH -18 / -6 5 ✓ Closing observed
11-04 18:17 160m -21 / -19 F4HGF -12 / - 2 ✓ Closing observed
11-04 18:15 160m -24 / - OH7MFO - / - 2 Partial capture
11-01 19:42 160m -17 / +6 TK4RB -16 / 0 5 ✓ Full exchange observed
09-22 19:18 160m -16 / -11 DK3ASE +14 / -14 5 ✓ Full exchange observed
09-22 19:17 160m -22 / - IZ0RVI - / -7 2 ✓ Closing fragment
09-22 19:15 160m - / -10 OZ1ADL -12 / - 2 ✓ Closing fragment
09-22 19:12 160m - / -5 LX1JX -5 / - 2 ✓ Closing fragment
09-22 19:10 160m - / +1 PI4DX +7 / - 2 ✓ Closing fragment
09-22 19:09 160m - / - PA3FR -6 / - 4 ✓ Closing fragment
09-19 19:24 160m -11 / - HB9GNH - / -15 3 ✓ Closing fragment
09-19 19:23 160m -13 / +10 S57AM -4 / - 3 ✓ Closing observed
09-19 19:20 160m - / - RA3WY -4 / - 8 Partial capture
09-19 19:20 160m -14 / -17 UA6YW -4 / -18 4 ✓ Full exchange observed
09-17 18:23 160m - / -4 9A5E -4 / - 2 ✓ Closing fragment
09-17 18:22 160m - / -10 OK1VKX -6 / - 2 ✓ Closing fragment
08-08 17:39 40m -15 / - OE3JMI - / -16 2 ✓ Closing fragment
08-08 17:38 40m -14 / - EB2EMZ - / -13 2 ✓ Closing fragment
08-08 17:17 10m -16 / - 4X5GE - / -6 2 Partial capture
08-08 17:16 10m -18 / - DN9KK - / -6 2 ✓ Closing fragment
08-08 17:08 10m -18 / +4 PD9FLX -2 / +1 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
182315 -11 2064  IU8RIA DF3IS JN49
182330 -13 2064  DF3IS IU8RIA -05
182345 -13 2064  IU8RIA DF3IS R+03
182400 -14 2064  DF3IS IU8RIA RR73
182415 -17 1000  IU8RIA RU6CH KN84
182415  +0 2064  IU8RIA DF3IS 73
182430  -5 2064  RU6CH IU8RIA -06
182445 -10 2148  IU8RIA R3ZG -15
182500  -9 2064  RU6CH IU8RIA RR73
182515 -16 1000  IU8RIA RU6CH 73
182515  -7 2148  IU8RIA R3ZG -15
182530  -5 2064  R3ZG IU8RIA R-10
182545  -5 2148  IU8RIA R3ZG RR73
182600  -7 2064  R3ZG IU8RIA 73
182715  +1  462  IU8RIA RA3ZK KO81
40m 
UTC    dB Audio  Message
173730 -17 2099  CQ IU8RIA JM89
173800 -15 2098  EB2EMZ IU8RIA -13 (x2)
173900 -15 2098  R4FDQ IU8RIA R-16
173930 -16 2099  OE3JMI IU8RIA -16 (x2)
10m 
UTC    dB Audio  Message
170830 -18 2144  CQ IU8RIA JM89
170845  -2 2331  IU8RIA PD9FLX JO22
170900 -21 2145  PD9FLX IU8RIA +01
170915  -3 2331  IU8RIA PD9FLX R+04
170930 -14 2145  PD9FLX IU8RIA RR73
171100 -18 2144  DN9BLN IU8RIA -14
171300 -17 2145  K8EAB IU8RIA RR73
171600 -21 2145  DN9EM IU8RIA RR73
171630 -18 2145  DN9KK IU8RIA -06 (x2)
171730 -15 2145  4X5GE IU8RIA -06 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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