IV3DXW — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving IV3DXW, decoded by SO8OO in southeastern Poland. 533 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-16.

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 533 FT8 messages attributed to IV3DXW as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (39%), followed by 40 m (26%) and 20 m (15%). Most decodes (65%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +2.8 dB.

Overview

533
Messages attributed
32
UTC dates decoded
92
Active 15-min windows
+2.8 dB
Estimated median S/N

Bands

160m · 60 80m · 50 40m · 136 20m · 81 10m · 206
First attributed message: 2026-06-08
Last attributed message: 2026-09-16 21:51 UTC

Observed FT8 message patterns

Attributed sample
533 messages
Active dates
32 UTC dates
Estimated median S/N
+2.8 dB
Estimated 10th-90th percentile
-9 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 478.

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 IV3DXW 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 IV3DXW

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 · 347 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
821 km (approx.)
Last such locator decoded
2026-09-16 21:50 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 UTCBandIV3DXW S/NCounterpartCounterpart S/NMsgsCapture
09-16 21:46 80m +10 / - RI1FJZ - / -12 10 Partial capture
09-16 21:28 40m +8 / - TJ1GD - / -19 3 ✓ Closing fragment
09-16 21:27 40m +8 / - DS2MGT - / -10 3 ✓ Closing fragment
09-16 21:25 40m -8 / - A41DV - / -18 2 ✓ Closing fragment
09-16 21:21 40m +7 / - R9WH - / -5 3 ✓ Closing fragment
09-16 21:04 40m +9 / - R9YCB - / -16 4 ✓ Closing fragment
09-16 21:02 40m -8 / -4 PD0LBY -8 / -12 4 ✓ Full exchange observed
09-16 21:00 40m +16 / - DK8HC - / -12 2 ✓ Closing fragment
09-16 20:58 40m +11 / - JA7ZF - / -14 3 ✓ Closing fragment
09-16 20:53 40m +10 / - JF1UVJ - / -4 4 ✓ Closing fragment
09-16 20:50 40m +2 / - BG2GWN - / -14 3 ✓ Closing fragment
09-16 20:50 40m +8 / - R0LER - / - 3 Partial capture
09-16 20:47 40m +8 / - JK2NWU - / - 2 Partial capture
09-16 20:45 40m -8 / - BG2GWN - / - 2 Partial capture
09-16 20:26 40m +12 / - JQ1YIW - / -10 4 ✓ Closing fragment
09-16 20:25 40m +13 / - BG2CTF - / - 3 Partial capture
09-16 20:22 40m +12 / -9 UN7EG -15 / -9 6 ✓ Full exchange observed
09-16 20:07 40m +14 / - KG6JDX - / -14 9 ✓ Closing fragment
09-16 19:17 160m -10 / - SV9MBH - / - 3 Partial capture
09-16 19:04 80m +4 / - ZL2GD - / -17 6 ✓ Closing fragment
09-16 19:00 80m 0 / - OD5YA - / - 2 Partial capture
09-16 18:15 80m +6 / - RI1FJZ - / - 9 Partial capture
09-15 21:13 80m -20 / - RI1FJZ - / - 2 Partial capture
09-14 20:20 80m +10 / - ZS1J - / - 2 Partial capture
09-14 04:44 40m +8 / - N4RLS - / - 2 Partial capture
09-08 19:09 40m +3 / - D44TWO - / - 21 Partial capture
09-04 22:16 160m +6 / - RI1FJL - / -21 4 Partial capture
09-04 21:50 160m +10 / -7 RI1FJL -12 / -26 36 ✓ Full exchange observed
09-04 21:37 160m +12 / - RI1FJL - / -20 18 Partial capture
09-01 04:13 40m +12 / - OA4ENG - / -18 2 ✓ Closing fragment
09-01 04:08 80m +14 / -14 VE3DZ -10 / -12 5 ✓ Full exchange observed
09-01 04:02 80m +16 / - RI1FJL - / - 6 Partial capture
08-30 21:51 40m 0 / - CE8VSO - / - 2 Partial capture
08-30 21:49 40m 0 / - XQ3MCC - / -23 3 ✓ Closing fragment
08-30 21:43 40m -5 / - ZS6KBS - / -21 5 ✓ Closing fragment
08-30 21:42 40m 0 / 0 ZA/IK3BNO -2 / -1 2 Partial capture
08-27 21:14 80m -4 / - RI1FJL - / - 2 Partial capture
08-27 21:08 40m +7 / - D2ACE - / - 7 Partial capture
08-27 20:44 20m -6 / - RA9SBN - / - 3 Partial capture
08-27 20:41 20m -3 / - K0MDS - / - 3 Partial capture
08-27 20:39 20m -6 / - BA3QIQ - / -16 2 ✓ Closing fragment
08-27 20:38 20m -3 / - BD8FWI - / - 3 Partial capture
08-27 20:36 20m -2 / - 8Z1IT - / - 3 Partial capture
08-27 20:34 20m -6 / - ZL1MHS - / - 4 Partial capture
08-27 19:00 80m 0 / - HF30NPN - / -20 3 Partial capture
08-27 18:57 80m 0 / - EN35UKR - / - 4 Partial capture
08-24 19:42 10m - / -19 <...> +4 / - 5 Partial capture
08-24 19:37 20m +9 / - D2IM - / - 7 Partial capture
08-24 18:11 40m +5 / - D2ACE - / -16 12 Partial capture
08-16 17:43 10m - / -2 GX0ERG -5 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
190515  +2 2907  ZL2GD IV3DXW JN65 (x5)
214645  +7 2764  RI1FJZ IV3DXW JN65 (x10)
40m 
UTC    dB Audio  Message
210530  +7 1191  R9YCB IV3DXW 73
211415  +2 2527  BG2CTF IV3DXW JN65
212145  +5  817  R9WH IV3DXW JN65 (x3)
212400  -2  934  PY7BC IV3DXW JN65
212430  +1 2530  BG2CTF IV3DXW JN65
212530 -14 1690  A41DV IV3DXW R-18 (x2)
212700  +7  733  DS2MGT IV3DXW R-10 (x3)
212845  +4  467  TJ1GD IV3DXW JN65 (x3)
160m 
UTC    dB Audio  Message
220945 +10  747  RI1FJL IV3DXW (x6)
221230 -11  501  IV3DXW RI1FJL RR73
221645  +6  747  RI1FJL IV3DXW (x4)
191145 -13 2068  R9SAP IV3DXW JN65
191715 -13 2691  SV9MBH IV3DXW JN65 (x3)
20m 
UTC    dB Audio  Message
203530  -5 3065  ZL1MHS IV3DXW JN65
203645  +0 3066  8Z1IT IV3DXW JN65 (x3)
203845  -2 3066  BD8FWI IV3DXW JN65 (x2)
203945  -7 3066  BA3QIQ IV3DXW -16 (x2)
204115  -4 3065  BD8FWI IV3DXW JN65
204145  -4 3065  K0MDS IV3DXW JN65 (x3)
204400  -7 3066  RA9SBN IV3DXW JN65 (x3)
10m 
UTC    dB Audio  Message
133015  -7  397  CQ IV3DXW JN65 (x2)
133115  -9  397  F1JUM IV3DXW -10
133315  -5  396  LY3PW IV3DXW 73
133415  -5  397  CQ IV3DXW JN65 (x4)
174345  -6  827  IV3DXW GX0ERG -02 (x2)
194245  +6 2881  IV3DXW <...> -19 (x5)

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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