IU3WOH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN65

Receiver-side FT8 activity involving IU3WOH, decoded by SO8OO in southeastern Poland. 1,206 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-08-24 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 1,206 FT8 messages attributed to IU3WOH as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (84%), followed by 20 m (15%) and 10 m (1%). Most decodes (56%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -1 dB.

Overview

1,206
Messages attributed
24
UTC dates decoded
171
Active 15-min windows
-1 dB
Estimated median S/N

Bands

40m · 1,009 20m · 181 10m · 16
First attributed message: 2026-08-24
Last attributed message: 2026-10-03 20:38 UTC

Observed FT8 message patterns

Attributed sample
1,206 messages
Active dates
24 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-16 to +8.9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 137, moderate (-15 to -9 dB) 208, strong (≥ -8 dB) 861.

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 IU3WOH 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 IU3WOH

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
JN65 · 529 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
821 km (approx.)
Last such locator decoded
2026-10-03 20:37 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 UTCBandIU3WOH S/NCounterpartCounterpart S/NMsgsCapture
10-03 20:38 40m -8 / - JR3NZC - / -25 2 ✓ Closing fragment
10-03 20:35 40m - / -5 PE1MHY -2 / - 2 ✓ Closing fragment
10-03 20:28 40m +4 / -12 UA9SY -8 / -12 5 ✓ Full exchange observed
10-03 20:16 40m - / - R1BGY -18 / - 2 Partial capture
10-03 20:11 40m +6 / -10 RA6UU -7 / -6 7 ✓ Full exchange observed
10-03 20:11 40m +4 / -14 RC5F -1 / -1 5 ✓ Full exchange observed
10-03 20:09 40m +8 / - SP9KSK - / -3 2 ✓ Closing fragment
10-03 20:07 40m +5 / -9 EA3HKY -8 / +9 5 ✓ Full exchange observed
10-03 20:06 40m +2 / -10 EA3HLM -6 / +4 5 ✓ Full exchange observed
10-03 20:03 40m +12 / - DK8CX - / 0 2 ✓ Closing fragment
10-03 19:46 40m +3 / -9 GW5NIC -7 / +4 5 ✓ Full exchange observed
10-03 19:37 40m +12 / -1 OH9FTW +6 / -2 5 ✓ Full exchange observed
10-03 07:54 40m +2 / -8 9A1CCB +2 / - 5 ✓ Full exchange observed
10-03 07:52 40m -2 / - PD1HBL - / -11 2 ✓ Closing fragment
10-03 07:50 40m +5 / - PD3JW - / -14 2 ✓ Closing fragment
10-03 07:49 40m +2 / - PD1WS - / -1 2 ✓ Closing fragment
10-03 07:48 40m -3 / - TA3NK - / -17 2 ✓ Closing fragment
10-03 07:48 40m - / - DL2VN -6 / - 2 Partial capture
10-03 07:45 40m -2 / - G0JEI - / -21 2 ✓ Closing fragment
10-03 07:42 40m -6 / -7 DD7EE -9 / +10 5 ✓ Full exchange observed
10-03 07:41 40m -12 / +8 HG5OGI -16 / - 3 ✓ Full exchange observed
10-03 07:34 40m +4 / -10 GU0SUP -4 / -7 5 ✓ Full exchange observed
09-27 10:39 40m -24 / - DL2VEL - / +10 2 ✓ Closing fragment
09-27 10:31 40m -14 / - F1PBZ - / -3 2 ✓ Closing fragment
09-27 10:29 40m -11 / - OE5ABL - / +8 3 ✓ Closing fragment
09-27 10:22 40m -14 / - DG3YEV - / - 2 Partial capture
09-16 12:30 40m -9 / - HB9DGR - / - 4 Partial capture
09-15 20:37 40m -17 / - ER3ZW - / - 2 Partial capture
09-15 20:35 40m -8 / -7 TC2EYL -4 / -12 4 ✓ Full exchange observed
09-15 20:32 40m -17 / - OZ1KZX -12 / +1 2 ✓ Closing observed
09-15 20:30 40m -12 / - SV7LWI -9 / - 3 ✓ Closing observed
09-15 08:40 40m -8 / - UT4PA - / -5 3 ✓ Closing fragment
09-15 08:37 40m -6 / -1 HA7TM +16 / - 4 ✓ Closing observed
09-15 08:36 40m - / - HB9EDG -19 / - 2 ✓ Closing fragment
09-15 07:51 40m -14 / -4 DH9DR +6 / - 5 ✓ Full exchange observed
09-14 18:52 40m +6 / -7 HA0DS -8 / - 5 ✓ Full exchange observed
09-13 21:50 40m -17 / 0 M0DSK -7 / - 2 ✓ Closing observed
09-13 21:43 40m -20 / - SV9/SV1ABB - / -1 2 Partial capture
09-13 20:48 40m - / -9 GJ0KYZ -9 / - 3 Partial capture
09-13 13:09 40m -5 / - LA5AKA - / -9 3 ✓ Closing fragment
09-12 20:44 40m +10 / -4 OH5KNL -9 / -6 4 ✓ Full exchange observed
09-12 20:38 40m +5 / -9 OH5KT -8 / +3 5 ✓ Full exchange observed
09-12 20:34 40m +9 / - OH5KT - / - 4 Partial capture
09-12 19:55 40m +7 / - OH7BDI -5 / +2 4 ✓ Closing observed
09-12 19:46 40m +8 / - LB7DJ - / 0 2 ✓ Closing fragment
09-12 19:41 40m +4 / +7 OZ1AXG +20 / - 5 ✓ Full exchange observed
09-12 17:37 40m +5 / -4 9A6TT +10 / - 3 Partial capture
09-12 16:18 40m -2 / - HA8RC -2 / - 4 ✓ Full exchange observed
09-12 12:39 40m -13 / - DL3BH - / +4 3 ✓ Closing fragment
09-12 10:21 40m -19 / 0 S55OO -14 / +2 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
202815 +12 2829  CQ IU3WOH JN65
202830  -5 2831  IU3WOH UA9SY LO63
202845  +6 2830  UA9SY IU3WOH -12
202900  -8 2831  IU3WOH UA9SY R-12
202915  +1 2830  UA9SY IU3WOH RR73
202930 -10 2830  IU3WOH UA9SY 73
202945  +8 2830  EA1IOK IU3WOH -22 (x2)
203500  -3  735  IU3WOH PE1MHY -05 (x2)
203615 -19 1800  RW3ZC IU3WOH R-07
203715 -10 2659  CQ IU3WOH JN65 (x2)
203815 -10 2659  JR3NZC IU3WOH -25 (x2)
10m 
UTC    dB Audio  Message
092630  +0 2868  A92AE IU3WOH JN65 (x2)
093515  -5 2691  SA6FOL IU3WOH JN65 (x3)
094100 -23 2125  YO9PH IU3WOH JN65
131000 -21 1588  IU3WOH 7Q7CT +06 (x2)
064500  +4  417  IU3WOH UR5ZGY KN57 (x3)
123015 -19 1776  IU3WOH YB1HR -09 (x2)
082800 -10 2517  IU3WOH 7Z1BS -06 (x2)
20m 
UTC    dB Audio  Message
120815  -2 1493  IU3WOH LA8OOA -04
124215  -6 1088  IU3WOH F5LMJ JN28
131700  +0 2528  IU3WOH M8GGQ -02 (x2)
131830 -12  765  IU3WOH RW4HB LO53 (x4)
132030  +3 1814  IU3WOH F5IXN JN23 (x3)
162215  -4 1690  IU3WOH <...> -06
165230  +2 1832  IU3WOH R3NBI -03
203400  -6 2095  HC7AE IU3WOH JN65 (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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