IV3DSI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN66

Receiver-side FT8 activity involving IV3DSI, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-10.

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 58 FT8 messages attributed to IV3DSI as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (34%), followed by 20 m (34%) and 80 m (22%). Several six-hour UTC windows tied for the largest share (91%), 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

58
Messages attributed
5
UTC dates decoded
11
Active 15-min windows
-16 dB
Estimated median S/N

Bands

80m · 13 40m · 20 20m · 20 10m · 5
First attributed message: 2026-06-08
Last attributed message: 2026-09-10 23:07 UTC

Observed FT8 message patterns

Attributed sample
58 messages
Active dates
5 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-23 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 8.

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 IV3DSI 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 IV3DSI

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
JN66 · 36 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
755 km (approx.)
Last such locator decoded
2026-09-10 23:05 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 UTCBandIV3DSI S/NCounterpartCounterpart S/NMsgsCapture
09-10 23:10 80m - / -24 Z62NS -3 / - 2 ✓ Closing fragment
09-10 23:04 80m -22 / -15 ON5WR -9 / -8 8 ✓ Full exchange observed
09-10 23:02 80m - / - YO6LM +12 / - 2 Partial capture
09-10 22:59 80m -20 / - ON4MAP - / - 3 ✓ Closing fragment
07-02 22:41 40m -18 / - IR0WWA - / - 4 Partial capture
07-02 22:39 40m -16 / - II3WWA -13 / - 3 ✓ Closing observed
07-02 22:38 40m -15 / - II0WWA - / -9 3 ✓ Closing fragment
07-02 22:38 40m - / - G6PWS -9 / - 4 Partial capture
07-02 22:37 40m -18 / -5 TM2WWA 0 / -6 4 ✓ Full exchange observed
07-02 22:35 40m -19 / +5 OL6WWA -12 / -5 2 Partial capture
07-02 22:34 40m - / - DL3MIB -2 / - 6 Partial capture
07-02 22:33 40m -14 / -14 GB2WWA -8 / -4 5 ✓ Full exchange observed
07-02 22:30 40m - / +7 II5WWA -10 / - 2 ✓ Closing fragment
06-24 23:09 20m -16 / - WQ8P - / - 2 Partial capture
06-24 23:02 20m -11 / - KC4DPT - / - 2 Partial capture
06-24 22:59 20m -10 / - KP4CK - / - 5 Partial capture
06-24 22:43 80m - / - DO9BAU +15 / - 5 Partial capture
06-24 22:42 80m -12 / -13 PI4APD -2 / -3 5 ✓ Full exchange observed
06-24 22:35 40m -21 / - A99AA - / -13 3 Partial capture
06-24 22:18 20m -14 / - UR5WCS - / -13 2 Partial capture
06-24 22:15 20m -11 / - SV1GYG - / -7 2 Partial capture
06-24 22:12 20m -8 / - N3TBB - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
225930 -20 1598  ON4MAP IV3DSI JN66 (x3)
230215 +13 2655  IV3DSI YO6LM KN25 (x2)
230400 -24 1598  ON5WR IV3DSI JN66 (x4)
230545  -9 1698  IV3DSI ON5WR -15
230600 -21 1599  ON5WR IV3DSI R-08 (x3)
231030  -4 1355  IV3DSI Z62NS -24 (x2)
40m 
UTC    dB Audio  Message
223800  -8  243  IV3DSI G6PWS IO91
223815 -14 1531  II0WWA IV3DSI JN66
223830 -10  243  IV3DSI G6PWS IO91
223845 -13 1532  II0WWA IV3DSI R-09
223900  -6  243  IV3DSI G6PWS IO91
223915 -18 1532  II0WWA IV3DSI 73
223930 -13  243  IV3DSI G6PWS IO91
223945 -15 1532  II3WWA IV3DSI JN66
224030 -13 1683  IV3DSI II3WWA RR73
224045 -18 1532  II3WWA IV3DSI 73
224115 -19 1532  IR0WWA IV3DSI JN66 (x4)
224445 -18 1532  CR2WWA IV3DSI JN66
20m 
UTC    dB Audio  Message
221530 -15 1864  SV1GYG IV3DSI -07
221600 -13 1750  CQ IV3DSI JN66                        a1 (x3)
221800 -15 1750  UR5WCS IV3DSI -13 (x2)
225945 -12 1927  KP4CK IV3DSI JN66 (x5)
230215 -10 1927  KC4DPT IV3DSI JN66 (x2)
230915 -19 1833  WQ8P IV3DSI JN66 (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.

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